A lot of people recommend a separate ext2 boot partition with around MB space for Linux installations. Most distributions default to ext4fs, but I’ve used ext2fs, ext3fs, and XFS with no problems under Ubuntu. By clicking “Post Your Answer”, you acknowledge that you have read our updated terms of service , privacy policy and cookie policy , and that your continued use of the website is subject to these policies. Sign up using Email and Password. Various rEFInd versions include fixes intended to address this problem, but I can’t be sure it’s been completely eliminated.

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Driver availability could increase in the future. With so many disk space on hard drives nowdays i recommend more than MB.

Post as a guest Name. Thus, if you change the filesystem, that binary must be reconstructed, which is done by grub-install. Upon completing installation of Ubuntu Rxt2 kernels are all around 4. Right now my kernels in my personal Ubuntu See my Web page on the subject or the Ubuntu community wiki for details.

Comparison of boot loaders – Wikipedia

But that was not the ordinary user scenario I was describing in my anser. Understanding your boot mode is critical, especially in dual-boot setups.

Such drivers are often embedded in the firmware of the devices themselves, and should be loaded automatically by the EFI. Sign up or log in Sign up using Google.

By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service. Specific versions can have their own quirks, though. Note that most of these uses are theoretical, at least to me; I don’t know of any specific examples of EFI drivers available as separate files for disk controller hardware, network cards, or video cards.


If you really need to switch to a very old kernel, restore it from the backup.

This isn’t an issue for fresh Ubuntu installations, since the installer will run grub-install as part of the installation process, so it should work fine as long as the Ubuntu installer itself accepts your choice of filesystem — which, as I’ve said, will actually narrow your choices from what GRUB permits. In debugging the problem, I found that a key funtion was being entered mid-function, which suggests either an EFI bug or a problem with the compiler or related tools.

I finally got tired of messing around with this and deleted all my partitions using GParted and installed from a Live DVD and allowed the installer to install Ubuntu for me.

[PATCH] ext4,ext3 and ext2 support for UEFI

Post Your Answer Discard By clicking “Post Your Answer”, you acknowledge that you have read our updated terms of serviceprivacy policy and cookie policyand that your continued use of the website is subject to these policies. On simple desktop installations or laptops it didn’t make much sense the last years, in my opinion. The problem can be quite serious if you run into it, though, since you must bypass rEFInd to boot the ex2.


It depends of what you put on initrd and on the bzImage. Most ect2 these drivers also suffer from speed problems on some computers.

Attempting to load drivers for the wrong CPU type will cause a small delay at best, or may cause the computer to crash at worst. Nowdays on modern Linux distros ext2, ext3 and ext4 are equally supported so it means you can use one of them. This Web page is provided free of charge and with no annoying outside ads; however, I did take time to fxt2 it, and Web hosting does cost money.

You can then tell the shell to re-assign drive identifiers with map -r:. Home Questions Tags Users Unanswered. EFI supports drivers, which can activate hardware or filesystems in the pre-boot environment. Worse, if you installed in one mode and then tried to repair in another, the inconsistency will make matters worse. Although Linux filesystems are all case-sensitive, these drivers treat them in a case-insensitive way.

I don’t recall offhand exg2 JFS is supported at installation. Do not place EFI program files in your driver directories! Post as a guest Name.