Kernel Panic after @world update, using btrfs | Gentoo Linux Community | Page 1

ember mural Jun 26, 2024, 2:41 AM

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Kernel panic right after rebooting when updating world, as it warned me that I needed to reboot for thr nvidia drivers to load properly. Tried chrooting and switching from gentoo-kernel to the -bin variant to save time during this process and remaking grub to see if anything got fixed, but that didn't help. I think someone had a similar issue with ugrd but they were using crypt-setup and it was potentially an issue of ugrd not recognizing the root subvolume. I've attached an image of the kernel panic.

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VFS: Cannot open root device "PARTUUID=c089f85d-9d8e-4f07-aaf9-dcdb4ff71b60" or unknown-block(0,0): error -6

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the similar issue but with crypt-setup: #support-archive message

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@jovial tundra might this be an ugrd issue with btrfs subvolumes?

jovial tundra Jun 26, 2024, 3:06 AM

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ugrd doesn't sem to be running there

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and ugrd will throw an error if it doesn't make an image

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so if it did make one, it isn't being used

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also it seems you're passing the subvol option?

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ugrd will autodetect yours and you don't need to pass it to the cmdline

ember mural Jun 26, 2024, 3:12 AM

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so should i chroot and manually run ugrd?

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i thought re-emerging the kernel would automatically pull ugrd iirc

jovial tundra Jun 26, 2024, 3:54 AM

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if you have installkernel setup to use it, it should

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and yeah either chroot in or use an old workig kernel/initramfs

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it's worth keeping backups

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i updared to 6.6.32 on my laptop and now it won't poweroff right lol

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im glad i kept a 6.6.30 image around

ember mural Jun 26, 2024, 4:36 AM

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jovial tundra if you have installkernel setup to use it, it should

i did. removed the dracut flag from installkernel and initramfs from gentoo-kernel-bin. i dont think i have any kernel backups and btrfs rollback isn't working for me

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(snapper)

ember mural Jun 26, 2024, 5:00 AM

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nevermind, i did have a 6.6.30 image and my computer works again :D no clue why the fuck 6.6.32 isnt working

jovial tundra Jun 26, 2024, 4:23 PM

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it doesn't seem like you have it set to run the right initramfs

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and you have to make sure installkernel is set to use ugrd

ember mural Jun 27, 2024, 5:25 AM

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jovial tundra and you have to make sure installkernel is set to use ugrd

im pretty sure it is since i removed the dracut flag and i remember setting my system up to use ugrd with 6.6.30

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though i did have some errors when installing my kernel and attempting to fix it by using the binary version instead, which is probably a really stupid idea

ember mural Jun 27, 2024, 4:11 PM

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@jovial tundra I've confirmed that my 6.6.32 isnt loading an initramfs, which is strange since nothing's changed on the ugrd side of things since 6.6.30 other than my @world update

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it should be pulling ugrd through emerging gentoo-kernel

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so im not sure, maybe ill run ugrd by hand

jovial tundra Jun 27, 2024, 4:14 PM

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yeah for me .32 doesn't power off correctly on my laptop

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it may have issues

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and you're sure your bootloader is being told to run ugrd?

ember mural Jun 28, 2024, 8:34 AM

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@jovial tundra Apparently ugrd was randomly unmerged, likely from when i depcleaned gentoo-kernel-bin in favor of gentoo-kernel (switching back to kernel-bin now)

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I've set -dracut use flag on installkernel as before, and -initramfs on gentoo-kernel-bin

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re-emerging the kernel should automatically pull ugrd now, yeah?

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manually running ugrd just made it remake my 6.6.30 initramfs, even after emerging 6.6.32, it still doesnt pull ugrd for some reason

gentoo-linux /boot # ls
config-6.6.30-gentoo-dist      config-6.6.32-gentoo-dist.old  initramfs-6.6.30-gentoo-dist.img      System.map-6.6.30-gentoo-dist.old  vmlinuz-6.6.30-gentoo-dist      vmlinuz-6.6.32-gentoo-dist.old
config-6.6.30-gentoo-dist.old  EFI                            initramfs-6.6.30-gentoo-dist.img.old  System.map-6.6.32-gentoo-dist      vmlinuz-6.6.30-gentoo-dist.old
config-6.6.32-gentoo-dist      grub                           System.map-6.6.30-gentoo-dist         System.map-6.6.32-gentoo-dist.old  vmlinuz-6.6.32-gentoo-dist

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it also spat out some issues on nvidia-firmware, which might be why my dgpu isnt really working anymore as of like a few days ago?

ERROR    | [nvidia] Firmware file does not exist: /lib/firmware/nvidia/550.78/gsp_tu10x.bin
ERROR    | [nvidia] Firmware file does not exist: /lib/firmware/nvidia/550.78/gsp_ga10x.bin
WARNING  | [nvidia_modeset] Failed to process autodetected kernel module dependencies: [nvidia_modeset] Kernel module dependency is in ignore list: video

jovial tundra Jun 28, 2024, 2:56 PM

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ember mural re-emerging the kernel should automatically pull ugrd now, yeah?

it should automatically use ugrd if it's installed and configured to be used

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it doesn't do anything by simply existing

jovial tundra Jun 28, 2024, 2:57 PM

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ember mural manually running ugrd just made it remake my 6.6.30 initramfs, even after emergi...

doesn't pull it or doesn't use it?

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very different

jovial tundra Jun 28, 2024, 2:57 PM

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ember mural it also spat out some issues on nvidia-firmware, which might be why my dgpu isnt...

that should be fine more or less

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it doesn't add video stuff by default

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but it still tries to gather info

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that missing firmware is weird but it ultimately doesn't need it because it doesn't pull the video modules

ember mural Jun 28, 2024, 2:59 PM

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@jovial tundra I later found out that the missing firmware thing was because nvidia-drivers were updated to only exist on the new (broken) kernel 6.6.32. is there a guide on how to configure ugrd to be used? because i have ugrd and it works to generate initramfs for 6.6.30 but it doesnt do it for 6.6.32 when i emerge the 6.6.32 kernel

jovial tundra Jun 28, 2024, 3:24 PM

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installkernel handles if

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either that or you have to run it manually

ember mural Jun 28, 2024, 3:39 PM

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should i like add a ugrd use flag to installkernel and then run the installkernel command? or just add the use flag then emerge gentoo-kernel-bin?

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cause from before all i remember is needing to specify -dracut on installkernel and it would automatically use ugrd

ember mural Jun 28, 2024, 3:39 PM

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jovial tundra doesn't pull it or doesn't use it?

mind explaining the difference? 😅

jovial tundra Jun 28, 2024, 4:08 PM

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ember mural mind explaining the difference? 😅

idk pull could mean "installs ugrd" or "builds the image with the kernel"

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by pull I mean portage installs the package

ember mural Jun 28, 2024, 4:09 PM

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ohhh gotcha

jovial tundra Jun 28, 2024, 4:09 PM

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installkernel is what should use ugrd to make the initramfs image

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like when the kernel is emerged

ember mural Jun 28, 2024, 4:09 PM

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yeah it's installed, installkernel just isnt using it for some reason

jovial tundra Jun 28, 2024, 4:09 PM

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when you emerge ugrd it should warn about that

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but you have to set /etc/kernel/install.conf I think

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you put like "initrd_generator=ugrd"

ember mural Jun 28, 2024, 4:19 PM

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ohh lemme try that

jovial tundra Jun 28, 2024, 4:25 PM

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ugrd may be hitting Gentoo real soon

ember mural Jun 28, 2024, 4:26 PM

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jovial tundra you put like "initrd_generator=ugrd"

i have the line "initramd_generator=ugrd" in there

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no clue why it's not using ugrd

jovial tundra Jun 28, 2024, 4:26 PM

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hmm it should run then

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when emerge installs the kernel

ember mural Jun 28, 2024, 4:27 PM

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should i emerge the kernel with -N maybe?

ember mural Jun 28, 2024, 4:27 PM

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jovial tundra ugrd may be hitting Gentoo real soon

based af

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dracut gives me brain damage

jovial tundra Jun 28, 2024, 4:29 PM

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ember mural should i emerge the kernel with -N maybe?

i don't think you need that

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emerge should be running installkernel regardless

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and that will use system config

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idk why it would install for .30 but not .32

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are you sure you didn't make it for .30 manually?

ember mural Jun 28, 2024, 4:31 PM

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im currently on .30 because .32 kernel panics due to no initramfs being in /boot for that version

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manually running ugrd seems to only want to make it for my current kernel version

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though im a complete ugrd noob and there's probably a flag to specify kernel version

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but there wasnt a manpage and i couldnt really gather anything from github

jovial tundra Jun 28, 2024, 4:36 PM

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ember mural manually running ugrd seems to only want to make it for my current kernel versio...

if you run it manually it autodetects your kernel version

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you can run --kver

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--help describes all of the cmdline args

ember mural Jun 28, 2024, 4:37 PM

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so would i do --kver linux-6.6.32-gentoo-dist or just 6.6.32?

jovial tundra Jun 28, 2024, 4:37 PM

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the whole thing, it should autocomplete

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it more or less has to correspond to the name of a modules dir

ember mural Jun 28, 2024, 4:40 PM

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would it be the vmlinuz file in /boot?

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sudo ugrd --kver /boot/vmlinuz-6.6.32-gentoo-dist

jovial tundra Jun 28, 2024, 4:48 PM

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no

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just the name bit

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not the full path

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it should tab complete

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maybe not if you're using a root zsh shell

ember mural Jun 28, 2024, 4:54 PM

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it wasnt tab autocompleting so i was worried it might be an issue with being in a shell as a user (on kde plasma)

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so i just need to specify the vmlinuz file?

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no /boot?

jovial tundra Jun 28, 2024, 5:06 PM

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no

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you specify a dir name in /lib/modules

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those may line up

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but the script reads that dir as that is where kmod info is stored

latent scarab Jun 28, 2024, 5:14 PM

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what filesystem are you using, and what is the output of blkid?

ember mural Jun 28, 2024, 5:18 PM

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latent scarab what filesystem are you using, and what is the output of blkid?

btrfs

latent scarab Jun 28, 2024, 5:19 PM

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well that's good, I would assume it's just a wrong root=PARTUUID= option

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kernel command line option

ember mural Jun 28, 2024, 5:21 PM

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would I be correct in running: sudo ugrd --kver /lib/modules/6.6.32-gentoo-dist/?

jovial tundra Jun 28, 2024, 5:21 PM

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no

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just the dir name

ember mural Jun 28, 2024, 5:21 PM

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it autocompleted but theres more in there

jovial tundra Jun 28, 2024, 5:21 PM

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not the full path

ember mural Jun 28, 2024, 5:21 PM

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oh ok

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cool lemme try rebooting, it seems to have done it!

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sike i dont see a 6.6.32 initramfs in /boot

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jovial tundra Jun 28, 2024, 5:23 PM

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look at the output

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it says where it's putting it

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by default it doesn

ember mural Jun 28, 2024, 5:23 PM

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do i mv it to here?

jovial tundra Jun 28, 2024, 5:23 PM

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t put it in boot, you can tell it to put it in boot

ember mural Jun 28, 2024, 5:23 PM

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ok

jovial tundra Jun 28, 2024, 5:23 PM

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just add /boot to the end of the command

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or do that

ember mural Jun 28, 2024, 5:24 PM

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can i keep it as a .xz file?

jovial tundra Jun 28, 2024, 5:25 PM

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the extenion barely matters

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but may affect how things like grub autodetect it

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if you're adding your own boot entries that doesn't matter

ember mural Jun 28, 2024, 5:27 PM

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nope... kernel panic again

jovial tundra Jun 28, 2024, 5:27 PM

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are you telling it to use the initramfs?

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you can't just run it and have it make a file and expect it to do anything

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this all has to be configured, which is why using installkernel is generally the best idea

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because using that should automatically put it in the right place and configure your bootloader to use it

ember mural Jun 28, 2024, 5:28 PM

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i am using installkernel afaik

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do i have to manually run it?

jovial tundra Jun 28, 2024, 5:28 PM

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you're not if you're running ugrd manualyl

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you can

ember mural Jun 28, 2024, 5:28 PM

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ah

jovial tundra Jun 28, 2024, 5:28 PM

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or you can let portage do it

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if you're running emerge with -v it should show everything run

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you just have to run emerge --config <kernel package name>

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if you run it with -a it will let you select the version

ember mural Jun 28, 2024, 5:31 PM

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emerge --config gentoo-kernel-bin finds no initrd image for 6.6.32, how can i use installkernel to run ugrd?

jovial tundra Jun 28, 2024, 5:31 PM

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"finds no initrd imave"

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what do you mean

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can you share a log or something

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emerge --config shouldn't be finding anything it should be making it

ember mural Jun 28, 2024, 5:34 PM

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gqt@gentoo-linux ~ $ sudo emerge --config sys-kernel/gentoo-kernel-bin


Ready to configure sys-kernel/gentoo-kernel-bin-6.6.32? [Yes/No] y

 * Your boot partition was detected as being mounted at /boot.
 * Files will be installed there for gentoo-kernel-bin to function correctly.
 * Installing the kernel via installkernel ...
Reading /etc/kernel/install.conf...

Running /usr/lib/kernel/preinst.d/52-ugrd.install 6.6.32-gentoo-dist /usr/src/linux-6.6.32-gentoo-dist/arch/x86/boot/bzImage


Running /usr/lib/kernel/postinst.d/91-grub-mkconfig.install 6.6.32-gentoo-dist /boot/vmlinuz-6.6.32-gentoo-dist

 * Backing up existing grub config as /boot/grub/grub.cfg~
'/boot/grub/grub.cfg' -> '/boot/grub/grub.cfg~'
 * Generating new GRUB config as /boot/grub/grub.cfg
Generating grub configuration file ...
Found linux image: /boot/vmlinuz-6.6.32-gentoo-dist
Found linux image: /boot/vmlinuz-6.6.32-gentoo-dist.old
Found linux image: /boot/vmlinuz-6.6.30-gentoo-dist
Found initrd image: /boot/initramfs-6.6.30-gentoo-dist.img
Found linux image: /boot/vmlinuz-6.6.30-gentoo-dist.old
Found initrd image: /boot/initramfs-6.6.30-gentoo-dist.img.old
Warning: os-prober will not be executed to detect other bootable partitions.
Systems on them will not be added to the GRUB boot configuration.
Check GRUB_DISABLE_OS_PROBER documentation entry.
Adding boot menu entry for UEFI Firmware Settings ...
done```

jovial tundra Jun 28, 2024, 5:35 PM

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cat is in /etc/kernel/install.conf

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can you run it with -v

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it's clearly not running ugrd

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that message lower is grub-mkconfig

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it has no output so it's not running

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you likely don't have it set to run

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if you run it with -v it should show the set initrd_generaotr

ember mural Jun 28, 2024, 5:36 PM

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jovial tundra can you run it with -v

that was with -v, -v is in my default opts

jovial tundra Jun 28, 2024, 5:36 PM

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it should show the set vars with verbose mode

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like installkernel vars

ember mural Jun 28, 2024, 5:37 PM

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jovial tundra

added, do i run it again?

jovial tundra Jun 28, 2024, 5:37 PM

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yeah

ember mural Jun 28, 2024, 5:39 PM

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gqt@gentoo-linux ~ $ sudo !!
sudo emerge --config sys-kernel/gentoo-kernel-bin:6.6.32


Ready to configure sys-kernel/gentoo-kernel-bin-6.6.32? [Yes/No] y

 * Your boot partition was detected as being mounted at /boot.
 * Files will be installed there for gentoo-kernel-bin to function correctly.
 * Installing the kernel via installkernel ...
Reading /etc/kernel/install.conf...
/etc/kernel/install.conf: line 2: !w: command not found                                                           [ !! ]
 * Installing the kernel failed
 * 
 * The kernel files were copied to disk successfully but the kernel
 * was not deployed successfully.  Once you resolve the problems,
 * please run the equivalent of the following command to try again:
 * 
 *     emerge --config sys-kernel/gentoo-kernel-bin:6.6.32
 * ERROR: sys-kernel/gentoo-kernel-bin-6.6.32::gentoo failed (config phase):
 *   Kernel install failed, please fix the problems and run emerge --config sys-kernel/gentoo-kernel-bin:6.6.32
 * 
 * Call stack:
 *     ebuild.sh, line  136:  Called pkg_config
 *   environment, line 1957:  Called kernel-install_pkg_config
 *   environment, line 1453:  Called kernel-install_install_all '6.6.32-gentoo-dist'
 *   environment, line 1447:  Called die
 * The specific snippet of code:
 *           die "Kernel install failed, please fix the problems and run emerge --config ${CATEGORY}/${PN}:${SLOT}";
 * 
 * If you need support, post the output of `emerge --info '=sys-kernel/gentoo-kernel-bin-6.6.32::gentoo'`,
 * the complete build log and the output of `emerge -pqv '=sys-kernel/gentoo-kernel-bin-6.6.32::gentoo'`.
 * The complete build log is located at '/var/tmp/portage/sys-kernel/gentoo-kernel-bin-6.6.32/temp/build.log'.
 * The ebuild environment file is located at '/var/tmp/portage/sys-kernel/gentoo-kernel-bin-6.6.32/temp/environment'.
 * Working directory: '/var/tmp/portage/sys-kernel/gentoo-kernel-bin-6.6.32/empty'
 * S: '/var/tmp/portage/sys-kernel/gentoo-kernel-bin-6.6.32/work/gentoo-kernel-bin-6.6.32'

jovial tundra Jun 28, 2024, 5:39 PM

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you put vim in your file

ember mural Jun 28, 2024, 5:39 PM

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lmfao i thought you told me to edit my file to look like your cat

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i was so confused

jovial tundra Jun 28, 2024, 5:40 PM

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no lol i was just showing you my config file

ember mural Jun 28, 2024, 5:40 PM

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so should i maybe write initrd_generator instead of initramd_generator?

jovial tundra Jun 28, 2024, 5:40 PM

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yes

ember mural Jun 28, 2024, 5:40 PM

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maybe my dumbass made a typo a while back and never noticed somehow

jovial tundra Jun 28, 2024, 5:40 PM

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yeah i make typos too but this info should be in the wiki

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and in the man page

ember mural Jun 28, 2024, 5:41 PM

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lmao i definitely mistyped

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whoops

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just rebooted and it works now, thanks a lot for your time and im so sorry such a stupid typo wasted so much of your time 😅

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really curious how i even got 6.6.30 to work

jovial tundra Jun 28, 2024, 6:14 PM

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yw lol

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i think you made it manually last time

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https://github.com/gentoo/gentoo/pull/33634/commits/5da98c79b95bcabd543439c0bf09e5011e8d5ce6

GitHub

sys-kernel/ugrd: Added UGRD initramfs generator with proxy maintian...

Hopefully this time it is cleaner

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ugrd is fiiiiiinally almost ready to be in ::gentoo 😄

ember mural Jun 28, 2024, 6:38 PM

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i wish there was something i could do to help other than test stuff on my other machine (gentoo arm vm) but all i know in terms of coding is MATLAB and a bit of Python wails_big_sobs

ember mural Jun 28, 2024, 6:39 PM

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jovial tundra i think you made it manually last time

possible

jovial tundra Jun 28, 2024, 10:39 PM

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ember mural i wish there was something i could do to help other than test stuff on my other ...

it's mostly python you could help by reading the code and documenting it a bit more

ember mural Jul 1, 2024, 10:22 AM

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@jovial tundra my computer isn't powering off properly with 6.6.32 either

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rebooting turns off the display but keeps my keyboard lights on and my fans still running until i manually hold down the power button

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seems like a pattern?

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same thing happens with shutdown

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ill raise an issue to github but idk how id get logs for this

jovial tundra Jul 1, 2024, 2:58 PM

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yeah I think it halts

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doesn't poweroff

ember mural Jul 1, 2024, 3:02 PM

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im not able to figure out what exactly is causing it so it'll probably get lost in linux mailing lists

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annoyingly nvidia firmware only installs onto the latest linux kernel so i can't use my graphics card on 6.6.30

#Kernel Panic after @world update, using btrfs