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o5gmmob8
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Joined: 17 Oct 2003
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 Posted: Sat Jan 11, 2025 6:24 pm Post subject: grub-install --efi-directory=/efi - unknown filesystem |
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I've been away from Gentoo for the past few years and am setting it up once again.
Before I migrate to secure boot, I need to get UEFI booting working.
I'm following the handbook:
https://wiki.gentoo.org/wiki/Handbook:AMD64/Installation/Bootloader#UEFI_systems
I partitioned the disk with ZFS (using the admin cd) and have nvme0n1p1 - vfat, and nvme0n1p2 - encrypted ZFS (ZFS on top of LUKS). I have the EFI partition mounted at /efi and upon running
| Code: | | grub-install --efi-directory=/efi |
I get unknown filesystem.
The EFI partition is indeed mounted at /efi and I am performing these operations inside the chrooted environment with all of the mount points setup, /dev, /sys, /run, and /proc. I also mounted efivarfs @ /sys/firmware/efi/efivars.
I ran grub-install with --verbose and I think it is looking at the second partition for whatever reason. I think I created the proper partition table, but I must be missing something. |
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CooSee
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Joined: 20 Nov 2004
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| Posted: Sat Jan 11, 2025 6:51 pm Post subject: |
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maybe you forgot to:
https://wiki.gentoo.org/wiki/ZFS#Bootloader
| Quote: | Bootloader
GRUB should be compiled with libzfs USE-flag in order to boot system from ZFS dataset:
echo "sys-boot/grub libzfs" > /etc/portage/package.use/grub
emerge -av grub |
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" Die Realität ist eine Illusion, die durch Mangel an ehrlicher Kommunikation entsteht "
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o5gmmob8
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| Posted: Sat Jan 11, 2025 7:04 pm Post subject: |
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Yes, you might be right. I'm rebuilding grub now  . |
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o5gmmob8
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Joined: 17 Oct 2003
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| Posted: Sat Jan 11, 2025 7:17 pm Post subject: |
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No changes, I'm getting the same thing.
These are the use flags I see for grub:
https://wiki.gentoo.org/wiki/GRUB#USE_flags
I have my use set to:
| Code: | | device-mapper fonts libzfs nls themes truetype |
and my GRUB_PLATFORM set to |
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CooSee
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| Posted: Sat Jan 11, 2025 7:35 pm Post subject: |
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| Quote: | | I have the EFI partition mounted at /efi and upon running |
don't get me wrong, but shouldn't it be /boot/efi ?
after i mounted the root partition i do ' mkdir --parents /mnt/gentoo/boot/efi '
and then, e.g. mount /dev/sdX1 /mnt/gentoo/boot/efi
and, my system only works via grub-install --target=x86_64-efi --efi-directory=/boot/efi --removable
i don't use or tried ZFS at all - just want to help
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" Die Realität ist eine Illusion, die durch Mangel an ehrlicher Kommunikation entsteht "
---
" Der Mensch ist von Natur aus neugierig, was am Ende übrig bleibt ist die Gier "
Last edited by CooSee on Sat Jan 11, 2025 7:39 pm; edited 1 time in total |
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o5gmmob8
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Joined: 17 Oct 2003
Posts: 470
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| Posted: Sat Jan 11, 2025 7:38 pm Post subject: |
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Not sure.
Here is what I did just now:
| Code: |
umount /efi
mkdir -p /boot/efi
mount /dev/nvme0n1p1 /boot/efi/
grub-install --efi-directory=/boot/efi
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| Code: |
Installing for x86_64-efi platform.
grub-install: error: unknown filesystem.
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It shouldn't matter, but I created my ZFS as: z_512.0/gentoo/ROOT and on the livecd, that is mounted at /mnt/gentoo/z_512.0/gentoo/ROOT. I have ssh running in the chroot and I'm installing remotely, so I get dropped into the root properly. |
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CooSee
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| Posted: Sat Jan 11, 2025 7:45 pm Post subject: |
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what about the libzfs USE flags for grub - is it enabled on your system ?
https://packages.gentoo.org/packages/sys-boot/grub
| Code: | | device-mapper fonts mount nls themes truetype -doc -efiemu -libzfs -sdl -secureboot -test -verify-sig |
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" Die Realität ist eine Illusion, die durch Mangel an ehrlicher Kommunikation entsteht "
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" Der Mensch ist von Natur aus neugierig, was am Ende übrig bleibt ist die Gier " |
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o5gmmob8
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| Posted: Sat Jan 11, 2025 7:45 pm Post subject: |
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I enabled it just for grub, but yeah, good point, let me check if it needs to be a global use flag.
I think it is a local USE flag only. |
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CooSee
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| Posted: Sat Jan 11, 2025 8:47 pm Post subject: |
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| Quote: | | I think it is a local USE flag only. |
yes, it's only for grub.
you're using luks on top - more info about your settings is needed to help you in better way.
please show your emerge --info
the content of your /etc/default/grub - output of blkid - /etc/fstab
and https://wiki.gentoo.org/wiki/Wgetpaste - e.g. wgetpaste --verbose --service 0x0 /boot/grub/grub.cfg
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" Die Realität ist eine Illusion, die durch Mangel an ehrlicher Kommunikation entsteht "
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" Der Mensch ist von Natur aus neugierig, was am Ende übrig bleibt ist die Gier " |
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Installing Gentoo
