by Roderick W. Smith, by Roderick W. Smith, rodsmith@rodsbooks.com
-Originally written: 3/14/2012; last Web page update: 3/26/2012, referencing rEFInd 0.2.3
+Originally written: 3/14/2012; last Web page update: +12/31/2012, referencing rEFInd 0.6.2-2
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@@ -89,27 +90,275 @@ href="mailto:rodsmith@rodsbooks.com">rodsmith@rodsbooks.comImportant: A rEFInd zip file, when uncompressed, creates a directory called refind-version, where version is the version number. This directory includes a subdirectory called refind that holds the boot loader, along with another that holds documentation, as well as miscellaneous files in refind-version itself. When I refer to "the refind directory" on this page, I mean the directory with that precise name, not the refind-version directory that is its parent.
+Once you've obtained a rEFInd binary file, you must install it to your computer's ESP (or conceivably to some other location). The details of how you do this depend on your OS and your computer (UEFI-based PC vs. Macintosh). The upcoming sections provide details. See the Contents sidebar to the left for links to specific installation procedures. For most Linux users, an RPM or Debian package is the best way to go. If your Linux system doesn't support these formats, though, or if you're running OS X, using the install.sh script can be a good way to go. If you're using Windows, you'll have to install manually.
+ +Important: A rEFInd zip file, when uncompressed, creates a directory called refind-version, where version is the version number. This directory includes a subdirectory called refind that holds the boot loader, along with another that holds documentation, as well as miscellaneous files in refind-version itself. When I refer to "the refind directory" on this page, I mean the directory with that precise name, not the refind-version directory that is its parent.
Once you've uncompressed a rEFInd binary zip file, you can copy the entire refind directory into your EFI System Partition's (ESP's) EFI directory on UEFI-based PCs, so that rEFInd resides in EFI/refind. If you've tried rEFInd using a CD-R image file, you can copy the files from the EFI/refind directory on the CD to create an equivalent directory on the ESP. To avoid confusion, though, you should delete the rEFInd binary file for the CPU type your computer does not use. To the best of my knowledge, all UEFI-based PCs use 64-bit CPUs, so you should keep the refind_x64.efi binary and delete the refind_ia32.efi binary. Most Intel-based Macs also have 64-bit EFI implementations, so you should do the same thing; but very early Intel-based Macs have 32-bit EFIs (and sometimes 32-bit CPUs), which require the refind_ia32.efi file. You can determine whether your Mac needs the x86-64 or IA32 build by typing the following command in a Mac Terminal window:
+Beginning with version 0.6.2, I've included an RPM package file for rEFInd, and I quickly updated this (in 0.6.2-2) to be more sophisticated and to include a Debian package file, as well. If you have a working RPM-based or Debian-based Linux installation that boots in EFI mode, using one of these files is likely to be the easiest way to install rEFInd: You need only download the file and issue an appropriate installation command. In some cases, double-clicking the package in your file manager will install it. If that doesn't work, a command like the following will install the RPM on an RPM-based system:
+ +# rpm -Uvh refind-0.6.2-2.x86_64.rpm+ +
On a Debian-based system, the equivalent command is:
+ +# dpkg -i refind_0.6.2-2_amd64.deb+ +
Either command produces output similar to that described for using the install.sh script, so you can check it for error messages and other signs of trouble. The package file installs rEFInd and registers it with the EFI to be the default boot loader. The script that runs as part of the installation process tries to determine if you're using Secure Boot, and if so it will try to configure rEFInd to launch using shim; however, this won't work correctly on all systems. Ubuntu 12.10 users who are booting with Secure Boot active should be wary, since the resulting installation will probably try to use Ubuntu's version of shim, which won't work correctly with rEFInd.
+ +Since version 0.6.3, the installation script makes an attempt to install rEFInd in a bootable way even if you run the script from a BIOS-mode boot, and therefore the RPM and Debian packages do the same. I cannot guarantee that this will work, though, and even if it does, some of the tricks that install.sh uses might not last for long. You might therefore want to use mvrefind.sh to move your rEFInd installation to another name after you boot Linux for the first time from rEFInd.
+ +Since version 0.6.2-2, my package files have installed the rEFInd binaries to /usr/share/refind-version, the documentation to /usr/share/doc/refind-version, and a few miscellaneous files elsewhere. Upon installation, the package runs the install.sh script to copy the files to the ESP. This enables you to re-install rEFInd after the fact by running install.sh, should some other tool or OS wipe the ESP or should the installation go awry. In such cases you can use install.sh or install manually.
+ + +Warning: If you're using a Macintosh, you should run install.sh from Mac OS X rather than from Linux. If run from Linux, rEFInd is unlikely to be fully installed. Worse, it's conceivable that running install.sh from Linux will damage your firmware, requiring that it be re-flashed. The reason is that Apple uses non-standard methods to enable a boot loader, and the Linux functions in install.sh assume standard EFI installation methods.
+ +If you're using Linux or Mac OS X, the easiest way to install rEFInd is to use the install.sh script. This script automatically copies rEFInd's files to your ESP or other target location and makes changes to your firmware's NVRAM settings so that rEFInd will start the next time you boot. If you've booted to OS X or in non-Secure-Boot EFI mode to Linux on a UEFI-based PC, install.sh will probably do the right thing, so you can get by with the quick instructions. If your setup is unusual, if your computer uses Secure Boot, or if you want to create a USB flash drive with rEFInd on it, you should read the extra instructions for this utility.
+ + +Under Linux, the install.sh script installs rEFInd to your disk's ESP. Under Mac OS X, the script installs rEFInd to your current OS X boot partition by default; but you can install to your ESP instead by passing the script the --esp option. Under either OS, you can install to something other than the currently-running OS by using the --root /mountpoint option. (See Table 1 for details.)
+ +Before running this script under Linux, you should ensure that your ESP is mounted at /boot or /boot/efi, as described in more detail in the Installing rEFInd Manually Using Linux section. (If you installed Linux in EFI mode, chances are your ESP is properly mounted.) This precaution isn't necessary under OS X. If you run install.sh from a BIOS/legacy-mode boot, particularly on a computer that also runs Windows, you should be aware that the tricks the script uses to install itself from BIOS mode are rather delicate. You can convert to a more conventional configuration using the mvrefind.sh script.
+ +A sample run under Linux looks something like this:
-$ ioreg -l -p IODeviceTree | grep firmware-abi +# ./install.sh +Installing rEFInd on Linux.... +ESP was found at /boot/efi using vfat +Installing driver for ext4 (ext4_x64.efi) +Copied rEFInd binary files + +Copying sample configuration file as refind.conf; edit this file to configure +rEFInd. + + +Installation has completed successfully.+ +
The output under OS X is a bit different:
+ ++$ ./install.sh +Not running as root; attempting to elevate privileges via sudo.... +Password: +Installing rEFInd on OS X.... +Installing rEFInd to the partition mounted at '/' +Copied rEFInd binary files + +Copying sample configuration file as refind.conf; edit this file to configure +rEFInd. + + +WARNING: If you have an Advanced Format disk, *DO NOT* attempt to check the +bless status with 'bless --info', since this is known to cause disk corruption +on some systems!! + + +Installation has completed successfully.+ +
In either case, the details of the output differ depending on your existing configuration and how you ran the program. Unless you see an obvious warning or error, you shouldn't be concerned about minor deviations from these examples. If you run into such a situation, or if you want to install in an unusual way, read on....
+ + +Some details that can affect how the script runs include the following:
+ +In addition to these quirks, you should be aware of some options that install.sh supports to enable you to customize your installation in various ways. The syntax for install.sh is as follows:
+ ++install.sh [--esp | --usedefault device-file | --root mount-point ] \ + [--nodrivers | --alldrivers] [--shim shim-filename] [--localkeys] [--yes]-
The result should read either EFI32 or EFI64, indicating that you should use the refind_ia32.efi or refind_x64.efi binary, respectively.
+The details of the options are summarized in Table 1. Broadly speaking, they come in four classes: installation location options (--esp, --usedefault, and --root), driver options (--nodrivers and --alldrivers), Secure Boot options (--shim and --localkeys), and a user input option (--yes). Using some of these options in unusual conditions can generate warnings and prompts to confirm your actions. In particular, using --shim or --localkeys when you're not booted in Secure Boot mode, or failing to use --shim when you are booted in Secure Boot mode, will generate a query and a request to confirm your installation. Consult the Managing Secure Boot page for more on this topic.
+ +| Option | +Explanation | +
|---|---|
| --esp | +This option tells install.sh to install rEFInd to the ESP of your computer. This option is only useful on OS X; on Linux, installing to the ESP is a practical necessity, so --esp is implicit on Linux. Be aware that some users have reported sluggish boots when installing rEFInd to the ESP on Macs. Installing rEFInd anywhere but the ESP makes little sense on UEFI-based PCs, except for the partial exception of removable boot media, which you can prepare with --usedefault. | +
| --usedefault device-file | +You can install rEFInd to a disk using the default/fallback filename of EFI/BOOT/bootx64.efi (and EFI/BOOT/bootia32.efi, if the 32-bit build is available) using this option. The device-file should be an unmounted ESP, or at least a FAT partition, as in --usedefault /dev/sdc1. Your computer's NVRAM entries will not be modified when installing in this way. The intent is that you can create a bootable USB flash drive or install rEFInd on a computer that tends to "forget" its NVRAM settings with this option. This option is mutually exclusive with --esp and --root (except for implicit use of --esp on Linux). | +
| --root /mount-point | +This option is intended to help install rEFInd from a "live CD" or other emergency system. To use it, you should mount your regular installation at /mount-point, including your /boot directory (if it's separate) at /mount-point/boot and (on Linux) your ESP at that location or at /mount-point/boot/efi. The install.sh script then installs rEFInd to the appropriate location—on Linux, /mount-point/boot/EFI/refind or /mount-point/boot/efi/EFI/refind, depending on where you've mounted your ESP; or on OS X, to /mount-point/EFI/refind. The script also adds an entry to your NVRAM for rEFInd at this location. You cannot use this option with either --esp or --usedefault, except for implicit use of --esp on Linux. Note that this option is not needed when doing a dual-boot Linux/OS X installation; just install normally in OS X. | +
| --nodrivers | +Ordinarily install.sh attempts to install the driver required to read /boot on Linux. This attempt works only if you're using ext2fs, ext3fs, ext4fs, or ReiserFS on the relevant partition. If you want to forego this driver installation, pass the --nodrivers option. This option is the default on OS X or when you use --usedefault. | +
| --alldrivers | +When you specify this option, install.sh copies all the driver files for your architecture. You may want to remove unused driver files after you use this option, especially if your computer uses Secure Boot. | +
| --shim shim-filename | +If you pass this option to install.sh, the script will copy the specified shim program file to the target directory, copy the MokManager.efi file from the shim program file's directory to the target directory, copy the 64-bit version of rEFInd as grubx64.efi, and register shim with the firmware. (If you also specify --usedefault, the NVRAM registration is skipped.) The intent is to simplify rEFInd installation on a computer that uses Secure Boot; when so set up, rEFInd will boot in Secure Boot mode, with one caveat: The first time you boot, MokManager will launch, and you must use it to locate and install a public key. This key file will be located in the rEFInd directory's keys subdirectory under the name refind.cer. Note that I'm not providing a shim binary myself, but you can download one from here. In the not-too-distant future, most distributions will provide their own shim programs, so you'll be able to point to them—for instance, in /boot/efi/EFI/fedora/shim.efi. | +
| --localkeys | +This option tells install.sh to generate a new Machine Owner Key (MOK), store it in /etc/refind.d/keys as refind_local.*, and re-sign all the 64-bit rEFInd binaries with this key before installing them. This is the preferable way to install rEFInd in Secure Boot mode, since it means your binaries will be signed locally rather than with my own key, which is used to sign many other users' binaries; however, this method requires that both the openssl and sbsign binaries be installed. The former is readily available in most distributions' repositories, but the latter is not, so this option is not the default. | +
| --yes | +This option causes the script to assume a Y input to every yes/no prompt that can be generated under certain conditions, such as if you specify --shim but install.sh detects no evidence of a Secure Boot installation. This option is intended mainly for use by scripts such as those that might be used as part of an installation via an RPM or Debian package. Note: I introduced this option with the 0.6.2-2 incremental release, which was primarily an update of the 0.6.2 RPM package; it's not yet available in the mainline 0.6.2 version. | +
In any event, you should peruse the script's output to ensure that everything looks OK. install.sh displays error messages when it encounters errors, such as if the ESP is mounted read-only or if you run out of disk space. You may need to correct such problems manually and re-run the script. In some cases you may need to fall back on manual installation, which gives you better control over details such as which partition to use for installation.
-Of course, before you can install the files, you must be able to access the ESP. The details of this task vary from one OS to another. If you have a choice, I recommend using Linux for rEFInd installation on UEFI PCs and OS X on Macs. (On Macs, you can optionally use OS X's main partition rather than the ESP for this purpose.) Windows provides relatively primitive tools for accessing the ESP and manipulating the EFI's boot list. I also describe some options for naming rEFInd that may be useful on some systems. Finally, I describe how to install some extra tools that you may find useful but that are not included with rEFInd.
+ +Sometimes the install.sh script just won't do the job, or you may need to install using an OS that it doesn't support, such as Windows. In these cases, you'll have to install rEFInd the old-fashioned way, using file-copying commands and utilities to add the program to your EFI's boot loader list. I describe how to do this with Linux, OS X, Windows, and the EFI shell.
-Accessing the ESP is easiest from Linux: The ESP is usually mounted at /boot/efi. You can verify that this is the case by using the df command:
+On a UEFI-based PC, you'll normally install rEFInd to the ESP, which is usually mounted at /boot/efi. You can verify that this is the case by using the df command:
$ df /boot/efi @@ -117,28 +366,28 @@ Filesystem 1K-blocks Used Available Use% Mounted on /dev/sda1 191284 16604 174681 9% /boot/efi-
This example shows that /dev/sda1 is mounted at /boot/efi, which is a typical configuration. (The ESP can be on another disk or partition, but /dev/sda1 is the most common place for an ESP.) If your output shows /boot or / under the Mounted on column, then your ESP isn't mounted. If you get a df: `/boot/efi': No such file or directory error message, then the /boot/efi directory doesn't even exist. In such cases, you may need to jump through some extra hoops, as described on my EFI Boot Loader Installation page.
+Warning: If you're running Linux on a Mac, I recommend you install rEFInd under OS X. The Mac's boot process deviates a bit from EFI standards, so you'll probably have to use a tool called bless under Mac OS to do the job. Alternatively, there's a new Linux program, hfs-bless, part of the mactel-boot package, that's supposed to work with efibootmgr to make a Mac HFS partition bootable. I've not yet tried it, though. There are also reports that the efibootmgr tool used under Linux can corrupt some Macs' firmware. Although I've seen some vague suggestions that this problem has been fixed under 3.x kernels, I haven't tested this claim.
+ +This example shows that /dev/sda1 is mounted at /boot/efi, which is a typical configuration. (The ESP can be on another disk or partition, but /dev/sda1 is the most common place for an ESP.) If your output shows /boot or / under the Mounted on column, then your ESP isn't mounted. (An exception is if you're mounting the ESP at /boot. This is an unusual configuration. If you're using it, you can proceed, making suitable adjustments to subsequent commands.) If you get a df: `/boot/efi': No such file or directory error message, then the /boot/efi directory doesn't even exist. In such cases, you may need to jump through some extra hoops, as described on my EFI Boot Loader Installation page.
Assuming the ESP is mounted at /boot/efi, you can install the rEFInd files as follows (you must be root to issue these commands, or precede each of them with sudo):
Warning: I've seen reports that Linux's efibootmgr utility can damage some Macs' firmware, necessitating re-flashing it. Therefore, I recommend using bless from OS X to do this job on Apple hardware.
+Weird: A bug exists in some Lenovo computers (and perhaps in some others, too) that causes the firmware's boot manager to refuse to boot any boot loader that doesn't have the name Windows Boot Manager or Red Hat Enterprise Linux. If you have such a system, you must pass one of those names (in quotes) rather than rEFInd to efibootmgr via its -L option. This bug was reported to Lenovo in mid-November 2012, so with any luck updated firmware without this bug will be available later this year or early in 2013. I can make no promises about this, though.
-On some systems, efibootmgr won't do what you expect. On such systems, you may have better luck renaming the rEFInd files, as described in the Alternative Naming Options section.
-One of the reasons I've abandoned rEFIt's GUI installation tools for Mac OS X is that there are several bug reports (such as this one and this one) that the rEFIt installer may be causing filesystem corruption on disks over about 500 MiB. I don't have such a disk on my Mac, so I can't test solutions. Rather than risk other peoples' hard disks, I thought it best to revert to a manual installation proceudure that will, I hope, be less likely to cause problems.
- -The procedure for installing rEFInd on a Mac is similar to that for installing it under Linux, except that you can install it to the OS X's system directory rather than to the ESP, and you must use the bless utility rather than efibootmgr. To be precise, you should follow these steps:
- -Before installing rEFInd on a Mac, you must determine whether it uses a 32-bit or 64-bit EFI implementation. Most Intel-based Macs have 64-bit EFIs, so you should use the refind_x64.efi file with them; but very early Intel-based Macs have 32-bit EFIs (and sometimes 32-bit CPUs), which require the refind_ia32.efi file. You can determine whether your Mac needs the x86-64 or IA32 build by typing the following command in a Mac Terminal window:
-+$ ioreg -l -p IODeviceTree | grep firmware-abi +-
The result should include either EFI32 or EFI64, indicating that you should use the refind_ia32.efi or refind_x64.efi binary, respectively.
-Warning: Numerous rEFIt bug reports indicate disk corruption problems on disks over about 500 GiB. This report on the problem, and particularly the post by mic-marchen, suggests that the problem is related to a bug in OS X's bless utility, and particularly its --info option, that causes it to corrupt data on disks with 4 KiB sectors. These Advanced Format disks are becoming increasingly common, particularly at larger disk sizes. Therefore, I strongly recommend that you not type sudo bless --info to check the status of your installation if you have such a disk, or even if you suspect you might have such a disk. (I've seen Advanced Format disks as small as 320 GB.)
-The procedure for installing rEFInd on a Mac is similar to that for installing it under Linux, except that you can (and probably should) install it to OS X's system partition or some other HFS+ partition rather than to the ESP, and you must use the bless utility rather than efibootmgr. To be precise, you should follow these steps:
-When you reboot, your Mac should bring up the rEFInd menu, and should continue to do so thereafter. If you make changes that break this association, you can re-run the bless command (if necessary, restoring the rEFInd files first). This might be necessary after installing system updates from Apple.
+When you reboot, your Mac should bring up the rEFInd menu, and should continue to do so thereafter. If you make changes that break this association, you can re-run the bless command (if necessary, restoring the rEFInd files first). This might be necessary after installing system updates from Apple or if you upgrade rEFInd to a newer version.
-If you're replacing rEFIt, you may discover that rEFInd works on the first boot, but the system reverts back to rEFIt or a direct boot to OS X on the second boot. To fix this problem, you can remove the rEFItBlesser program, which is located at /Library/StartupItems/rEFItBlesser. This program attempts to keep rEFIt set as the default boot loader, but it also has the purpose of protecting the computer from launching the wrong OS after waking from sleep. If you want that protection, my suggestion is to install rEFIt and rEFItBlesser and then replace the refit.efi file with refind_x64.efi or refind_ia32.efi (renaming it to refit.efi. Used in this way, rEFInd will still look for its own configuration file, refind.conf, so you'll need to move it but not rename it. If you don't move the icons from the rEFInd package, your icons will continue to look like rEFIt icons, and you'll be missing the new icons for specific Linux distributions that rEFInd provides.
+If you're replacing rEFIt, you may discover that rEFInd works on the first boot, but the system reverts back to rEFIt or a direct boot to OS X on the second boot. To fix this problem, you can remove the rEFItBlesser program, which is located at /Library/StartupItems/rEFItBlesser. This program attempts to keep rEFIt set as the default boot loader, but it also has the purpose of protecting the computer from launching the wrong OS after waking from sleep. If you want that protection, my suggestion is to install rEFIt and rEFItBlesser and then replace the refit.efi file with refind_x64.efi or refind_ia32.efi (renaming it to refit.efi. Used in this way, rEFInd will still look for its own configuration file, refind.conf, so you'll need to move it but not rename it. If you don't move the icons from the rEFInd package, your icons will continue to look like rEFIt icons, and you'll be missing the new icons for specific Linux distributions that rEFInd provides. One final caveat: It's conceivable that rEFItBlesser is what's causing filesystem corruption for some users, so if you've been having this problem with rEFIt, it might be worth disabling this program and not using it with rEFInd.
If you want to remove rEFInd from your system, you can delete its files. The Mac will revert to booting using whatever standard boot loader it can find. Alternatively, you can use bless to bless another EFI boot loader. The GUI Startup Disk utility in System Preferences provides a simplified interface that enables you to select which OS X installation to boot, but it doesn't look for non-Apple boot loaders, so you can't use it to enable rEFInd.
-Warning: Windows 8 implements a fast shutdown feature that helps speed up shutdown and startup operations on a single-boot computer. Unfortunately, this feature can cause filesystem corruption if it's used on a multi-boot computer. You can disable the feature by launching an Administrator Command Prompt window and typing powercfg /h off in it.
+To install rEFInd under Windows, you must first find a way to access the ESP, which Windows normally hides from view. One way to accomplish this goal, and to proceed forward once the ESP is accessible, is as follows:
Unfortunately, I know of no Windows tool that's equivalent to efibootmgr under Linux or bless under OS X. (Such a tool must exist, but I don't know what it is. If you do, please e-mail me a pointer!) This can make adding rEFInd to your system a bit tricky, particularly if your firmware provides few boot options. In the best of all possible worlds, you'll be able to use your firmware's user interface to add rEFInd to your firmware's own boot manager; however, far too many EFI implementations lack even this modest capability. If you're stuck in this boat, you have several options, such as:
+At this point, when you reboot, rEFInd should appear as your new default boot program. One caveat: My only EFI Windows installation uses UEFI DUET, which "forgets" its boot options upon reboot. Thus, I'm unable to test the last two steps (which were provided by a helpful user) myself. If it doesn't work for you, you have several other options, such as:
If you can't currently boot any OS (say, because a firmware update has wiped your NVRAM entries), you may find it convenient to install rEFInd using an EFI version 2 shell. Unfortunately, the bcfg command described here is not available in the EFI version 1 shell, and the version 2 shell is unusable on many firmware implementations prior to 2.3.1. Thus, this procedure won't work for all systems.
+ +In addition to emergency situations, using bcfg can be desirable if efibootmgr or other OS-hosted tools don't do the job. This happens under VirtualBox, for instance. An alternative in such cases can be to use alternative names for rEFInd.
+ +To begin, you must have a way to launch your shell. Unfortunately, this can pose a dilemma, since without rEFInd or some other boot manager, many EFI implementations lack the means to launch a shell. Some will do so, though, if the shell is stored as shellx64.efi (for x86-64) or shellia32.efi (for x86) in the root directory of the ESP. Thus, you can try copying your shell file there. You can obtain EFI 2 shells here:
+ +Note that the shell included in rEFInd's CD-R image version is a version 1 shell, so you can't use it for this purpose. You can, however, copy rEFInd's files from the CD-R. You can even launch the version 1 shell included with rEFInd and then use that to launch a version 2 shell. Once you've booted the shell, you can proceed as follows:
+ +Note: Skip ahead to step #9 if you're merely re-activating an already-installed rEFInd binary. If an entry exists but it's no longer the primary one, you can skip ahead to step #14.
+ +With any luck, rEFInd will start up at this point. If not, you can check your settings using a shell or an emergency system for your OS of choice. In an EFI shell, you might type bcfg boot dump -b to view your boot loader entries and verify that rEFInd appears at the top of the list. Be sure to check the pathname for typos. If you continue to have problems, you might look into giving rEFInd a fallback filename that your firmware will recognize.
+Some EFI implementations do a poor job of honoring the boot options set via Linux's efibootmgr or other tools. You may also lack access to such utilities, such as if you must install rEFInd in Windows. In such cases, you may need to change the boot loader's name so that the EFI will see it as the default boot loader. rEFInd should then boot when your NVRAM lacks information on specific boot loaders to use. Broadly speaking, there are two alternative names that are most useful:
+ +If you need to use one of these names, or something more exotic, you can do so in either of two ways: You can use the mvrefind.sh script to move your installation in one step, or you can move and rename your files manually.
+ + +The easiest way to move a rEFInd installation, at least in Linux, is to use the mvrefind.sh script. If you installed from one of my RPM or Debian packages, this script should be installed in /usr/sbin, so you can use it like a regular Linux command; otherwise you'll need to install it to your path yourself or type its complete path. Either way, it works much like the Linux mv command, but you pass it the directory in which a rEFInd installation appears and a target location:
+ ++# mvrefind.sh /boot/efi/EFI/BOOT /boot/efi/EFI/refind ++ +
This example moves rEFInd from /boot/efi/EFI/BOOT to /boot/efi/EFI/refind. It differs from mv in several ways: + +
The mvrefind.sh script is likely to be useful in resolving boot problems—if your system won't boot, you can try copying the installation to /boot/efi/EFI/BOOT, /boot/efi/EFI/Microsoft/Boot, and /boot/efi/EFI/refind in turn, testing the boot process after each attempt. (These filenames all assume your ESP is mounted at /boot/efi.) You could also copy a BIOS-mode install from /boot/efi/EFI/BOOT or /boot/efi/EFI/Microsoft/Boot to /boot/efi/EFI/refind to make it more robust against Windows repairs (assuming your firmware isn't broken).
+ + +Some EFI implementations do a poor job of honoring the boot options set via Linux's efibootmgr or other tools. You may also lack access to such utilities, such as if you must install rEFInd in Windows. In such cases, you may need to change the boot loader's name so that the EFI will see it as the default boot loader. rEFInd should then boot when your NVRAM lacks information on specific boot loaders to use. To do this, follow these steps:
When you reboot, rEFInd should come up. With any luck, it will detect your old boot loader as an option, if one was installed before.
+ +If you've installed an earlier version of rEFInd, you can upgrade a bit more easily than you can install directly:
+ +In all cases, if the new version includes new or altered configuration file options, you may need to manually update your configuration file. Alternatively, if you've used the default configuration file, you can replace your working refind.conf with refind.conf-sample from the rEFInd zip file. (When using install.sh, this file will be copied to rEFInd's installation directory under its original name, so you can rename it within that directory to replace the old file.
+ +If you're upgrading to rEFInd from rEFIt, you can simply run the install.sh script as described earlier or perform a manual installation. Once installed, rEFInd will take over boot manager duties. You'll still be able to launch rEFIt from rEFInd; a rEFIt icon will appear in rEFInd's menu. You can eliminate this option by removing the rEFIt files, which normally reside in /EFI/refit.
+I've seen links to other versions of these tools from time to time on the Web, so if you try one of these programs and it crashes or behaves strangely, try performing a Web search; you may turn up something that works better for you than the one to which I've linked.
+ +I've received a few reports of a sluggish boot process (a delay of about 30 seconds before starting rEFInd) on some Macs after installing rEFInd. I've been unable to replicate this problem myself, and its true cause remains mysterious to me. I have found a Web forum post describing a possible fix. Be aware, though, that this procedure involves using the efibootmgr utility on Macs, which has been known to damage the firmware on some Macs. Other reports indicate that this problem has been fixed with 3.3.0 and later kernels. Thus, I present this information cautiously and with a strong "use at your own risk" warning. If you care to proceed, I recommend you update your Linux kernel to the latest possible version and then proceed as follows:
+ +Some sources suggest that delayed launches of rEFInd on Macs are more common when installing rEFInd to the ESP, so if you've done this, you could try re-installing it to your OS X boot partition.
+ + +If you decide you don't want to keep rEFInd, you can uninstall it. Doing so is a matter of removing the rEFInd files from your ESP (or from your OS X boot partition, if you installed the program there). In Linux, a command like the following, typed as root, should do the trick:
+ ++# rm -r /boot/efi/EFI/refind ++ +
This example assumes that your ESP is mounted at /boot/efi and that rEFInd is installed in EFI/refind on that partition. If you've mounted your ESP elsewhere, or installed rEFInd elsewhere, you should adjust the command appropriately.
+ +The same procedure works in OS X, with the caveat that the ESP isn't normally mounted in OS X and rEFInd is installed to the OS X boot partition by default. You'll also need to use sudo to acquire root privileges. Thus, you'd probably use a command like the following in OS X:
+ ++$ sudo rm -r /EFI/refind ++ +
Many variants of both of these commands are possible on both OS X and Linux. For instance, you'd probably use sudo on Ubuntu; and if you installed rEFInd to your ESP on a Mac, you'd need to first mount the ESP and include its path in the rm command.
+ +If you installed via an RPM or Debian package in Linux, using your package manager will remove the package files, but not the files that the installer places on your ESP. Thus, you must uninstall those files manually, as just described. To complete the job, you'll also have to remove /boot/refind_linux.conf, and perhaps the /etc/refind.d directory.
+ +From Windows, you must reverse the directions for installing in Windows—type mountvol S: /S to mount your ESP as S:, then navigate to the S:\EFI directory and delete the refind subdirectory.
+ +In any of these cases, when the computer boots and cannot find the rEFInd files, it should move on to the next boot loader in its list. In my experience, some EFI firmware implementations remove boot loaders they can't find from their NVRAM lists, so nothing else will be required, provided you have another working boot loader in your firmware's list. If your firmware doesn't automatically clean up its NVRAM entries, rEFInd's entry will do little harm; however, you can delete it with the efibootmgr utility in Linux:
+ ++# efibootmgr --verbose +Timeout: 10 seconds +BootOrder: 0000,0007 +Boot0000* rEFInd HD(2,1b8,64000,f1b7598e-baa8-16ea-4ef6-3ff3b606ac1e)File(\EFI\refind\refind.efi) +Boot0007* CD/DVD Drive BIOS(3,0,00)PATA: HP DVD Writer 1040r . +# efibootmgr --delete-bootnum --bootnum 0000 +Timeout: 10 seconds +BootOrder: 0007 +Boot0007* CD/DVD Drive+ +
Warning: As noted earlier, efibootmgr has been linked to firmware corruption on some Macs, at least with pre-3.0 Linux kernels. Therefore, I don't recommend using efibootmgr on Macs.
+ +This example shows use of efibootmgr's --verbose (-v) option to display boot loaders so as to identify which one is rEFInd, followed by --delete-bootnum (-B) to delete a boot program and --bootnum (-b) to identify which one to delete. Of course, in this example there's not much else left, so you'd presumably want to install another boot loader at this point! If you already have another one installed, you may want to check the BootOrder line to determine which one will take precedence when you reboot. If you don't like what it shows, you can adjust it with the --bootorder (-o) option; consult efibootmgr's man page for details.
+ +If you're not using Linux, you may be able to find a utility that serves a similar function. The OS X bless utility (or its GUI equivalent, the Startup Disk item in System Preferences) should do the trick; but Macs pick up standard OS X boot loaders when they boot and find that a configured non-standard boot loader is missing, so this shouldn't be necessary on Macs. Under Windows, the bcdedit command, described in the section on installing rEFInd under Windows, may work, although I've not attempted this.
+copyright © 2012 by Roderick W. Smith