efifs
uefi-elf-bootloader
| efifs | uefi-elf-bootloader | |
|---|---|---|
| 11 | 2 | |
| 495 | 85 | |
| - | - | |
| 0.0 | 0.0 | |
| 20 days ago | over 1 year ago | |
| C | C | |
| GNU General Public License v3.0 only | GNU General Public License v3.0 only |
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efifs
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How to Boot ISO Files from GRUB2 Boot Loader
See also UEFI drivers that can read a bunch of other file systems (btrfs, ext2/3/4, HFS, ISO, NTFS, UFS/FFS, XFS, ZFS, etc):
* https://efi.akeo.ie
* https://github.com/pbatard/efifs
The UEFI spec specifies (ยง13.3) that firmware is only required to read FAT32/16/12, which is generally why your /boot/efi is VFAT/FAT32.
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Is exFAT bootable?Can I boot WinPE with exFAT?
In theory you would still need a FAT32 efi 'stub' partition with the exFAT filesystem drivers which you have to load before loading the WinPE loader (bootmgfw.efi).
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How do I configure the refind.conf and refind_linux.conf (and or config.yaml (for ZFSBootMenu)) files properly when installing Arch Linux with ZFS Native Encryption?
I am pretty sure that that I am doing something incorrectly with the configuration files for the rEFInd bootloader, but everything else should be correct. However, as I write this, I barely realized did I not use the following commands recommended from the "Usage" section from the aforementioned website where I downloaded the zfs_x64.efi driver file for rEFInd:
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Grub vs Systemd-boot --removable question
I found the drivers here https://efi.akeo.ie/ . Which means, that any EFI bootloader able to load them will be able to use them. They are not for bootloader, but it is the firmware which will use them. As i said, i am little bit afraid that it will not work on any board as some manufacturers have pretty buggy firmware when talking about infrequently used features. Also i am bit unsure they will work with secure boot as they are gpl3 thus will be never signed by Microsoft and i don't know what UEFI requirements for drivers are in this regard.
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Why use a bootloader? Just boot directly into a unified kernel image
Even for those using systemd-boot with custom efi drivers to provide functionality, it's worth noting that those drivers are being developed downstream of GRUB.
- Latest grub update on arch distros seems to cause boot issues
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So why do so people still use GRUB?
I think you can also add btrfs filesystem support for sd-boot by including the EFI drivers for it on the EFI partition instead, from https://github.com/pbatard/efifs/releases I think. Haven't tried it myself though.
- Is any ESP filesystem other than vfat supported on coreboot? (lemp9)
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Fedora considers deprecating legacy BIOS
EFI doesn't actually mandate FAT for the system partition. The system partition can be any filesystem that the firmware supports.
Of course, pretty much all EFI implementations only support FAT, so it's a bit of a moot point; the only one I'm aware of that supports anything else is the one on Intel Macs, which also understands HFS+.
You can find a huge selection of EFI filesystem drivers at https://efi.akeo.ie/ but they're derived from GRUB and hence GPL, so don't expect the likes of American Megatrends to be bundling these any time soon.
- Help Please! I rebooted my TrueNAS SCALE and get the following.
uefi-elf-bootloader
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Understanding the purpose of UEFI
Thanks all for their answers! You helped alot! In the meanwhile I've found this example loader and kernel: https://github.com/ajxs/uefi-elf-bootloader In that project the dev has chosen to disable the watchdog timer and newer return from boot loader. This is the end of efi_main
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Switching To 64bit Mode
Example code for loading an ELF kernel from UEFI: https://github.com/ajxs/uefi-elf-bootloader
What are some alternatives?
ReBarUEFI - Resizable BAR for (almost) any UEFI system
VeraCrypt-DCS - VeraCrypt EFI Bootloader for EFI Windows system encryption (LGPL)
swtpm - Libtpms-based TPM emulator with socket, character device, and Linux CUSE interface.
elf2efi - Convert ELF-format images to PE+ suitable for use as EFI applications
mkinitcpio - Arch Linux initramfs generation tools (read-only mirror)
NesUEFI - A bootable NES Emulator running on UEFI
BootDuet - Boot sector program for booting Intel's EDK Developer's UEFI Emulation (DUET) from hard disk with LBA.
limine - Modern, advanced, portable, multiprotocol bootloader.
uefi-ntfs - UEFI:NTFS - Boot NTFS or exFAT partitions from UEFI
android_bootable_bootloader_edk2 - Android Boot Loader (abl) for SHIFTPHONES
edk2-platforms - EDK II sample platform branches and tags
UEFI-Tuts - YOUTUBE Tutorials on how the UEFI works to boot your own Operating System. Think of this as an EFI Bootloader.