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RIA77
Guru
Joined: 24 Feb 2016
Posts: 409
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 Posted: Tue May 27, 2025 1:40 pm Post subject: Failed to mount UEFI, failed to enter into Gentoo from grub |
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Hello to all and thank you in advance.
I reinstalled grub with another Linux distro.
Now I can't enter into Gentoo.
Actually I can with grub disc. But as a regular user, I can't.
"You have to load kernel first".
When I am into Gentoo,
| Code: | Мount: /boot/efi: wrong fs type, bad option, bad superblock on /dev/nvme0n1p7, missing codepage or helper program, or other error.
dmesg(1) may have more information after failed mount system call.
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Efi is formatted properly. I can see it from Peppermint OS and it's formated.
| Code: | /dev/nvme0n1p6 / ext4 noatime,defaults 0 1
/dev/nvme0n1p7 /boot/efi vfat noauto,noatime 1 2
#efivarfs /sys/firmware/efi/efivars efivarfs rw,nosuid,nodev,noexec,relatime 0 0
#tmpfs /tmp/portage tmpfs rw,nosuid,nodev,size=10G,mode=775,uid=portage,gid=portage,x-mount.mkdir=775 0 0
tmpfs /var/tmp/portage tmpfs size=10G,uid=portage,gid=portage,mode=775 0 0
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bstaletic
Guru
Joined: 05 Apr 2014
Posts: 517
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| Posted: Wed May 28, 2025 2:06 am Post subject: |
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Considering | RIA77 wrote: | | Code: | | dmesg(1) may have more information after failed mount system call. |
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can you access the dmesg log?
What options is peppermint using to mount ESP and what options is gentoo trying to use? |
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Goverp
Advocate
Joined: 07 Mar 2007
Posts: 2257
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| Posted: Wed May 28, 2025 8:58 am Post subject: |
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| RIA77 wrote: | ...
| Code: | Мount: /boot/efi: wrong fs type, bad option, bad superblock on /dev/nvme0n1p7, missing codepage or helper program, or other error.
dmesg(1) may have more information after failed mount system call.
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Efi is formatted properly. I can see it from Peppermint OS and it's formated.
| Code: | /dev/nvme0n1p6 / ext4 noatime,defaults 0 1
/dev/nvme0n1p7 /boot/efi vfat noauto,noatime 1 2
...
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IIUC the output you show above is from /etc/fstab, which is irrelevant at this stage since the kernel isn't loaded. You need to use some other tool such as blkid from a running Linux system (emergency repair, install disk, Peppermint (not something I know about)) to prove nvme0n1p7 is actually vfat.
You may have done this already, it's just that /etc/fstab shows what you intend, not necessarily what is the actual case.
<edit>Another possibility - your Gentoo kernel is missing built-in VFAT support - perhaps it's a module, or even entirely missing.
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NeddySeagoon
Administrator
Joined: 05 Jul 2003
Posts: 55308
Location: 56N 3W
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| Posted: Wed May 28, 2025 11:04 am Post subject: |
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Goverp,
Something is calling the mount command.
| Code: | Мount: /boot/efi: wrong fs type, bad option, bad superblock on /dev/nvme0n1p7, missing codepage or helper program, or other error.
dmesg(1) may have more information after failed mount system call. |
and the kernel is running or dmesg would not exist.
As the ESP need not be mounted to boot linux, so that failure should not stop booting.
RIA77,
We need to see output with /boot/efi mounted.
You could try | Code: | | /dev/nvme0n1p7 /boot/efi vfat noauto,noatime,nofail 1 2 |
in fstab. That adds the nofail option, or even commenting out the /boot/efi entry, so that it can't even try to mount /boot/efi.
The idea is only to get Gentoo started, so we can have a look around.
_________________
Regards,
NeddySeagoon
Computer users fall into two groups:-
those that do backups
those that have never had a hard drive fail. |
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RIA77
Guru
Joined: 24 Feb 2016
Posts: 409
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| Posted: Wed May 28, 2025 4:00 pm Post subject: |
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Update - just logged in from Peppermint OS.
Mounted Gentoo in chroot as well as UEFI partition.
Sucessfully installed Gentoo as Grub menu.
But os-prober can't detect any other OS.
Tried with Peppermint OS grub, but "you have to load kernel first" when I try to log in into Gentoo.
When I log into Gentoo, I can't mount uefi, but when I mount via chroot (from Peppermint) it's possible..
So I can enter into Gentoo but not with Peppermint grub menu. Only with Gentoo grub entry
| Code: | Found Gentoo Linux on /dev/nvme0n1p6
/usr/sbin/grub-probe: error: unknown filesystem.
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This is error after refreshing Grub from Peppermint.
| Code: | | /dev/nvme0n1p7 /boot/efi vfat noauto,noatime,nofail 1 2 |
Thank you. Tried, but there is no change. I can't log from Peppermint grub OS. |
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