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arvamircea
Tux's lil' helper
Joined: 21 May 2022
Posts: 107
Location: Swadlincote
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 Posted: Tue Jan 23, 2024 1:11 am Post subject: [SOLVED] Super early kernel panic |
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Hello...
I have issues booting into Gentoo.
You know? You do the same thing 100 times (grub-mkconfig -o /boot/grub/grub.cfg) all goes well, till it doesn't.
When booting I see:
| Code: |
Loading Linux 6.7.1-gentoo ...
Loading initial ramdisk ...
E
FI stub: Loaded initrd from LINUX_EFI_INITRD_MEDIA_GUID device path
EFI stub: Measured initrd data into PCR 9
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When chroot-ed from a LiveUSB and running "grub-mkconfig -o /boot/grub/grub.cfg", I see
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Cannot find list of partitions! (Try mounting /sys.)
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Any ideas what it wants from me?
Last edited by arvamircea on Wed Jan 24, 2024 1:17 am; edited 1 time in total |
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arvamircea
Tux's lil' helper
Joined: 21 May 2022
Posts: 107
Location: Swadlincote
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| Posted: Tue Jan 23, 2024 3:12 am Post subject: |
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Update:
I mounted /sys as well before chroot-ing and got rid of that Grub error. But I still get the kernel panic.. |
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Hu
Administrator
Joined: 06 Mar 2007
Posts: 21794
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| Posted: Tue Jan 23, 2024 3:25 am Post subject: |
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| What kernel panic is this? Your posts neither quote its text nor describe it. There are many ways to misconfigure a system in a way that could cause a panic. Without the error text, there is little we can do to guide you. |
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arvamircea
Tux's lil' helper
Joined: 21 May 2022
Posts: 107
Location: Swadlincote
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| Posted: Tue Jan 23, 2024 3:44 am Post subject: Re: Super early kernel panic |
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| arvamircea wrote: | When booting I see:
| Code: |
Loading Linux 6.7.1-gentoo ...
Loading initial ramdisk ...
E
FI stub: Loaded initrd from LINUX_EFI_INITRD_MEDIA_GUID device path
EFI stub: Measured initrd data into PCR 9
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This is all I see after selecting what to boot into from the Grub menu. Keyboard lights go off and nothing happens no matter how long I wait.
Sorry, I thought it's some sort of kernel panic. At least that's what I've found when googling that output. |
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NeddySeagoon
Administrator
Joined: 05 Jul 2003
Posts: 54409
Location: 56N 3W
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| Posted: Tue Jan 23, 2024 10:39 am Post subject: |
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arvamircea,
It looks like you have secure boon or measured boot enabled.
| Code: | EFI stub: Loaded initrd from LINUX_EFI_INITRD_MEDIA_GUID device path
EFI stub: Measured initrd data into PCR 9 |
If that fails, the kernel will never start.
Try turning off secure/measured boot.
_________________
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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arvamircea
Tux's lil' helper
Joined: 21 May 2022
Posts: 107
Location: Swadlincote
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| Posted: Tue Jan 23, 2024 11:21 am Post subject: |
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Thank you. I've made some progress with this I think.
Secure boot was off in UEFI but I've also found an option called "Intel(R) Platform Trust Technology" and disabled that. I've also reconfigured the bootloader (grub-mkconfig) for good measure.
Now the message I see on booting is:
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Loading Linux 6.7.1-gentoo ...
Loading initial ramdisk ...
E
FI stub: Loaded initrd from LINUX_EFI_INITRD_MEDIA_GUID device path
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pietinger
Moderator
Joined: 17 Oct 2006
Posts: 4345
Location: Bavaria
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arvamircea
Tux's lil' helper
Joined: 21 May 2022
Posts: 107
Location: Swadlincote
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| Posted: Tue Jan 23, 2024 3:52 pm Post subject: |
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| Code: |
grub-install --efi-directory=/efi
grub-install: error: /use/lib/grub/i386-pc/modinfo.sh doesn't exist. Please specify --target or --directory.
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grub-install --target=x86_64-efi --efi-directory=/efi
Installing for x86_64-efi platform.
grub-install: error: failed to get canonical path of '/efi'.
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grub-install --target=x86_64-efi --efi-directory=/efi --removable
Installing for x86_64-efi platform.
grub-install: error: failed to get canonical path of '/efi'.
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| Code: |
grub-install --efi-directory=/boot
grub-install: error: /use/lib/grub/i386-pc/modinfo.sh doesn't exist. Please specify --target or --directory.
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grub-install --target=x86_64-efi --efi-directory=/boot
Installing for x86_64-efi platform.
EFI variables are not supported on this system.
EFI variables are not supported on this system.
grub-install: error: efibootmgr failed to register the boot entry: No such file or directory.
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grub-install --target=x86_64-efi --efi-directory=/boot --removable
Installing for x86_64-efi platform.
Installation finished. No errors reported.
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grub-mkconfig -o /boot/grub/grub.cfg
Generating grub configuration file ...
Found linux image: /boot/vmlinuz-6.7.1-gentoo-r1
Found initrd image: /boot/initramfs-6.7.1-gentoo-r1.img
Found linux image: /boot/vmlinuz-6.7.1-gentoo
Found initrd image: /boot/initramfs-6.7.1-gentoo.img
Found linux image: /boot/vmlinuz-6.7.1-gentoo.old
Found initrd image: /boot/initramfs-6.7.1-gentoo-r1.img.old
Warning: os-prober will be executed to detect other bootable partitions.
Its output will be used to detect bootable binaries on them and create new boot entries.
Found Mac OS X on /dev/sdb3
Adding boot menu entry for UEFI Firmware Settings ...
done
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/dev/sdb3 is the Gentoo LiveUSB
>un-mount
>reboot
>Same boot error
I have no idea what's wrong. I've updated the kernel hundreds of times with no issues.
Now my PC is a brick.
P.S. I'm unable to disable "CSM mode"/"Legacy mode", for whatever reason the UEFI keeps turning it back on, very frustrating. But it was always like this I think and I don't have a problem. |
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GDH-gentoo
Veteran
Joined: 20 Jul 2019
Posts: 1569
Location: South America
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| Posted: Tue Jan 23, 2024 5:20 pm Post subject: |
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| arvamircea wrote: | | Code: |
grub-install --efi-directory=/efi
grub-install: error: /use/lib/grub/i386-pc/modinfo.sh doesn't exist. Please specify --target or --directory.
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[...]
| Code: |
grub-install --efi-directory=/boot
grub-install: error: /use/lib/grub/i386-pc/modinfo.sh doesn't exist. Please specify --target or --directory.
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| Code: |
grub-install --target=x86_64-efi --efi-directory=/boot
Installing for x86_64-efi platform.
EFI variables are not supported on this system.
EFI variables are not supported on this system.
grub-install: error: efibootmgr failed to register the boot entry: No such file or directory.
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[...]
P.S. I'm unable to disable "CSM mode"/"Legacy mode", for whatever reason the UEFI keeps turning it back on, very frustrating. |
This all suggests that the computer is booting in BIOS / CSM / Legacy mode, not UEFI mode. Has it always been like this?
_________________
| NeddySeagoon wrote: | | I'm not a witch, I'm a retired electronics engineer |
| Ionen wrote: | | As a packager I just don't want things to get messier with weird build systems and multiple toolchains requirements though |
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arvamircea
Tux's lil' helper
Joined: 21 May 2022
Posts: 107
Location: Swadlincote
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| Posted: Tue Jan 23, 2024 5:36 pm Post subject: |
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Hello, thank you for the reply.
Is hard to tell for sure, but I am 90% sure is always been like this (the computer being in Legacy mode, even tho I manually switche it to UEFI it switchedes itself back to BIOS).
In the past
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grub-install --target=x86_64-efi --efi-directory=/boot --removable
grub-mkconfig -o /boot/grub/grub.cfg
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used to do the job.
I have to admit it is possible the UEFI chip broke just now and switched itself to Legacy Mode and does not allow to be switched back.
Last edited by arvamircea on Tue Jan 23, 2024 6:44 pm; edited 1 time in total |
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arvamircea
Tux's lil' helper
Joined: 21 May 2022
Posts: 107
Location: Swadlincote
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| Posted: Tue Jan 23, 2024 6:33 pm Post subject: |
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If my computer is in Legacy Mode/BIOS, what do I need to do to be able to use it again?
Not gonna lie, I'm getting desperate. A simple kernel update bricked my computer for two days and it does not look like I'm any closer to fixing it. ;--; |
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sokrovenno
n00b
Joined: 23 Aug 2023
Posts: 66
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| Posted: Tue Jan 23, 2024 7:56 pm Post subject: |
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| arvamircea wrote: | If my computer is in Legacy Mode/BIOS, what do I need to do to be able to use it again?
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You should look into your BIOS. In my notebook I must press F2 before the grub appears on screen. In your computer may be another Fbutton. Take a look there.
On my BIOS there is three options:
UEFI
CSM or UEFI
CSM
I hope it works.
| arvamircea wrote: | Not gonna lie, I'm getting desperate. A simple kernel update bricked my computer for two days and it does not look like I'm any closer to fixing it. ;--;
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Always keep an older kernel. If things go wrong you always have an option.
I am too having problems with this new kernel. Having a backup kernel saved me.  |
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arvamircea
Tux's lil' helper
Joined: 21 May 2022
Posts: 107
Location: Swadlincote
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| Posted: Tue Jan 23, 2024 8:19 pm Post subject: |
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Thank you. Right now my UEFI is in CSM/BIOS/Legacy Mode, I am unable to change it due to probably a hardware failure on the chip. I am fine with that, Gentoo can be run in BIOS mode no problem.
The issue is, I really really don't want to reinstall Gentoo. Ironically I was just thinking a few days ago "Finally I made the computer look and feel exactly how I want it, imagine if I ever need to reinstall."
I still have my old kernel, that's why I was so flabbergasted at the beginning, I am unable to boot it the old kernel either, I get the same boot message... |
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GDH-gentoo
Veteran
Joined: 20 Jul 2019
Posts: 1569
Location: South America
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| Posted: Tue Jan 23, 2024 10:00 pm Post subject: |
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Maybe it's just the rescue medium that booted in BIOS mode as a fallback.
| arvamircea wrote: | In the past
| Code: | grub-install --target=x86_64-efi --efi-directory=/boot --removable
grub-mkconfig -o /boot/grub/grub.cfg |
used to do the job. |
Using --removable for a hard disk is usually because the UEFI firmware is bad and doesn't properly support BOOT#### EFI variables. How did you originally determine that you needed this to boot your Gentoo kernels? What hardware is this?
| arvamircea wrote: | | Code: | grub-mkconfig -o /boot/grub/grub.cfg
Generating grub configuration file ...
...
Found Mac OS X on /dev/sdb3 |
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Mac OS X?
| arvamircea wrote: | | I still have my old kernel, that's why I was so flabbergasted at the beginning, I am unable to boot it the old kernel either, I get the same boot message... |
So, are you saying that kernels that used to boot no longer do so?
_________________
| NeddySeagoon wrote: | | I'm not a witch, I'm a retired electronics engineer |
| Ionen wrote: | | As a packager I just don't want things to get messier with weird build systems and multiple toolchains requirements though |
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arvamircea
Tux's lil' helper
Joined: 21 May 2022
Posts: 107
Location: Swadlincote
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| Posted: Tue Jan 23, 2024 10:19 pm Post subject: |
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| GDH-gentoo wrote: |
How did you originally determine that you needed this to boot your Gentoo kernels? What hardware is this?
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When originally installing Gentoo I've tried all option till I found one that worked. ¯\_(ツ)_/¯
I have an ASRock Fatal1ty Z170 gaming K6 motherboard.
| GDH-gentoo wrote: |
Mac OS X
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Yeah, is just a funny output from os-prober. It detected the Gentoo LiveUSB as Mac OS X. But I don't think is relevant at all.
| GDH-gentoo wrote: |
So, are you saying that kernels that used to boot no longer do so?
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I don't know anymore, I've done so many things I'm confusing myself. Most likely I deleted all original kernels and re-built then.
I found some help in IRC. Apparently is all good, the UEFI/BIOS finds the kernel but gets stuck with the initrd. I build all my files inside /boot with "make install" so the theory right now is that's where the problem lies. |
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arvamircea
Tux's lil' helper
Joined: 21 May 2022
Posts: 107
Location: Swadlincote
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| Posted: Wed Jan 24, 2024 1:16 am Post subject: |
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[SOLVED]
"genkernel all" managed to make a bootable kernel. Oddly enough I still see that message (EFI stub: Loaded initrd from LINUX_EFI_INITRD_MEDIA_GUID device path) for a split second when booting into the working kernel.
[CONCLUSION]
The old method "make install" must have had some changes and it does not do everything that it used to.
[FOR WHOEVER MAY READ THIS]
The Gentoo community is one of the wonders of the modern world.
If you need help:
1th do whatever is in your power and mental capabilities to search the documentation and the forums for a solution.
2nd look for help, it always blows my mind how selfless and goodhearted the Gentoo community is.
3rd don't be a dick and ignore rule 1, the most beautiful things are the easiest to destroy |
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