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craigdolson
n00b
Joined: 30 Apr 2022
Posts: 15
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 Posted: Mon May 23, 2022 4:46 pm Post subject: kernel upgrade still boots into old kernel |
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my gentoo sources were upgraded during last @world update, to 5.15.41-gentoo-x86_64 and the previous sources | Code: | | 5.15.32-gentoo-r1-x86_64 |
were removed in a depclean, and are no longer available to emerge, even without an unmask option. So, i went through the process of reviewing the gentoo kernel upgrade wiki, and i thought i followed all of the steps correctly, however when i boot, i still boot into the "old" kernel. See items below. I did go through the whole make-oldconfig, make, make install process for the kernel.
| Code: | craig@gentoox ~ $ uname -r
5.15.32-gentoo-r1-x86_64 (OLD KERNEL) |
| Code: | craig@gentoox ~ $ eix gentoo-sources
[?] sys-kernel/gentoo-sources
Available versions:
(4.9.309) 4.9.309^bs
(4.9.311) ~4.9.311^bs
(4.9.312) ~4.9.312^bs
(4.14.275) 4.14.275^bs
(4.14.276) ~4.14.276^bs
(4.14.277) ~4.14.277^bs
(4.19.237) 4.19.237^bs
(4.19.238) ~4.19.238^bs
(4.19.239) ~4.19.239^bs
(4.19.240) ~4.19.240^bs
(5.4.188) 5.4.188^bs
(5.4.189) ~5.4.189^bs
(5.4.190) ~5.4.190^bs
(5.4.191) ~5.4.191^bs
(5.10.109) 5.10.109^bs
(5.10.110) ~5.10.110^bs
(5.10.111) [M]~5.10.111^bs
(5.10.112) [M]~5.10.112^bs
(5.10.112-r1) ~5.10.112-r1^bs
(5.10.113) ~5.10.113^bs
(5.15.32-r1) 5.15.32-r1^bs
(5.15.33) ~5.15.33^bs
(5.15.34) [M]~5.15.34^bs
(5.15.35) [M]~5.15.35^bs
(5.15.35-r1) ~5.15.35-r1^bs
(5.15.36) ~5.15.36^bs
(5.16.20) [M]~5.16.20^bs
(5.17.1) ~5.17.1^bs
(5.17.1-r1) ~5.17.1-r1^bs
(5.17.2) ~5.17.2^bs
(5.17.3) [M]~5.17.3^bs
(5.17.4) [M]~5.17.4^bs
(5.17.4-r1) ~5.17.4-r1^bs
(5.17.5) ~5.17.5^bs
{build experimental symlink}
Installed versions: 5.15.41(5.15.41)^bs(09:22:30 PM 05/20/2022)(-build -experimental -symlink)
Homepage: https://dev.gentoo.org/~mpagano/genpatches
Description: Full sources including the Gentoo patchset for the 5.17 kernel tree |
| Code: | craig@gentoox ~ $ sudo grub-mkconfig -o /boot/grub/grub.cfg
Password:
Generating grub configuration file ...
Found linux image: /boot/vmlinuz-5.15.41-gentoo-x86_64
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
craig@gentoox ~ $ |
However when i reboot, i still boot into | Code: | | 5.15.32-gentoo-r1-x86_64 |
, rather than | Code: | | 5.15.41-gentoo-x86_64 |
Im sure i just missed a step, but i cannot seem to figure out what that might be. This is my first time "upgrading" to a new kernel, so im still trying to get the hang of this.
Thanks. |
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alamahant
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Joined: 23 Mar 2019
Posts: 3879
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| Posted: Mon May 23, 2022 4:59 pm Post subject: |
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Is your /boot partition mounted when you run
| Code: |
sudo grub-mkconfig -o /boot/grub/grub.cfg
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Do you use a "noauto" option to mount /boot in fstab?
Also under /lib/modules the old kernel should normally be present
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craigdolson
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Joined: 30 Apr 2022
Posts: 15
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| Posted: Mon May 23, 2022 5:06 pm Post subject: |
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| alamahant wrote: | Is your /boot partition mounted when you run
| Code: |
sudo grub-mkconfig -o /boot/grub/grub.cfg
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Do you use a "noauto" option to mount /boot in fstab?
Also under /lib/modules the old kernel should normally be present |
My fstab file shows the following for /boot partition
| Code: | | /dev/nvme0n1p1 /boot Vfat defaults,noatime 0 2 |
my /lib/modules directory is populated with:
| Code: | craig@gentoox /lib/modules $ ls
total 12K
drwxr-xr-x 3 root root 4.0K Apr 29 12:05 .
drwxr-xr-x 11 root root 4.0K May 11 14:15 ..
drwxr-xr-x 3 root root 4.0K Apr 29 12:05 5.15.32-gentoo-r1-x86_64
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my /boot directory contains:
| Code: | craig@gentoox /boot $ ls
total 15M
drwxr-xr-x 3 root root 4.0K May 23 11:15 .
drwxr-xr-x 21 root root 4.0K Apr 24 12:11 ..
-rw-r--r-- 1 root root 227K May 23 11:09 config-5.15.41-gentoo-x86_64
drwxr-xr-x 2 root root 4.0K May 23 11:32 grub
-rw-r--r-- 1 root root 0 Apr 24 12:11 .keep
-rw-r--r-- 1 root root 4.8M May 23 11:09 System.map-5.15.41-gentoo-x86_64
-rw-r--r-- 1 root root 9.2M May 23 11:09 vmlinuz-5.15.41-gentoo-x86_64
craig@gentoox /boot $ |
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alamahant
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Joined: 23 Mar 2019
Posts: 3879
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| Posted: Mon May 23, 2022 5:11 pm Post subject: |
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| Quote: |
Code:
craig@gentoox /lib/modules $ ls
total 12K
drwxr-xr-x 3 root root 4.0K Apr 29 12:05 .
drwxr-xr-x 11 root root 4.0K May 11 14:15 ..
drwxr-xr-x 3 root root 4.0K Apr 29 12:05 5.15.32-gentoo-r1-x86_64
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You forgot to run
| Code: |
make modules_install
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You only have the old kernel.
Also in /etc/fstab
| Code: |
/dev/nvme0n1p1 /boot Vfat defaults,noatime 0 2
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you have a capital "V" for vfat.
Plz make it "v".
This means that when you run "sudo grub-mkconfig -o /boot/grub/grub.cfg" your /boot is never mounted.
| Code: |
cd /usr/src/linux
mount /boot
make install
make modules_install
sudo grub-mkconfig -o /boot/grub/grub.cfg
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should fix it
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craigdolson
n00b
Joined: 30 Apr 2022
Posts: 15
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| Posted: Mon May 23, 2022 5:23 pm Post subject: |
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| alamahant wrote: | | Quote: |
Code:
craig@gentoox /lib/modules $ ls
total 12K
drwxr-xr-x 3 root root 4.0K Apr 29 12:05 .
drwxr-xr-x 11 root root 4.0K May 11 14:15 ..
drwxr-xr-x 3 root root 4.0K Apr 29 12:05 5.15.32-gentoo-r1-x86_64
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You forgot to run
| Code: |
make modules_install
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You only have the old kernel.
Also in /etc/fstab
| Code: |
/dev/nvme0n1p1 /boot Vfat defaults,noatime 0 2
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you have a capital "V" for vfat.
Plz make it "v".
This means that when you run "sudo grub-mkconfig -o /boot/grub/grub.cfg" your /boot is never mounted.
| Code: |
cd /usr/src/linux
mount /boot
make install
make modules_install
sudo grub-mkconfig -o /boot/grub/grub.cfg
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should fix it |
Thanks for that info. i ran the make-modules, and upon trying to update grub, i am met with the following.
| Code: | craig@gentoox /boot/grub $ sudo grub-mkconfig -o /boot/grub/grub.cfg
Generating grub configuration file ...
cat: write error: No space left on device
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| Code: | craig@gentoox /boot/grub $ df -h
Filesystem Size Used Avail Use% Mounted on
none 32G 1.9M 32G 1% /run
udev 10M 0 10M 0% /dev
tmpfs 32G 9.5M 32G 1% /dev/shm
/dev/nvme0n1p3 908G 105G 758G 13% /
cgroup_root 10M 0 10M 0% /sys/fs/cgroup
//truenas/Main 2.7T 239G 2.4T 9% /media/truenas
tmpfs 6.3G 28K 6.3G 1% /run/user/1000
/dev/nvme0n1p1 253M 253M 0 100% /boot
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clearly, i am out of space. so, what is the safest way to remove old config? im not using LVM, so i cant really expand that drive. |
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alamahant
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Joined: 23 Mar 2019
Posts: 3879
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| Posted: Mon May 23, 2022 5:31 pm Post subject: |
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Maybe delete old /boot partition and IF YOU HAVE space create a new one?
Then reinstall grub and kernel and update grub?
My boot
| Code: |
du -sh /boot
76M /boot
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Why is yours so big?
plz run
| Code: |
mountpoint /boot
ls /boot
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after properly mounting boot
Maybe not needed new /boot.
Just clean clutter in it?
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Last edited by alamahant on Mon May 23, 2022 5:36 pm; edited 1 time in total |
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craigdolson
n00b
Joined: 30 Apr 2022
Posts: 15
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| Posted: Mon May 23, 2022 5:35 pm Post subject: |
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| alamahant wrote: | Maybe delete old /boot partition and IF YOU HAVE space create a new one?
Then reinstall grub and kernel and update grub? |
| Code: | craig@gentoox ~ $ du -sh /boot
253M /boot
craig@gentoox ~ $
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crazy idea here, but could i just not delete the old kernel version entries from the /boot volume and let create the new ones? Current /boot volume shows
| Code: | craig@gentoox /boot $ ls
total 25M
drwxr-xr-x 4 root root 512 Dec 31 1969 .
drwxr-xr-x 21 root root 4.0K Apr 24 12:11 ..
drwxr-xr-x 4 root root 512 May 21 02:40 EFI
drwxr-xr-x 6 root root 512 May 23 12:20 grub
-rwxr-xr-x 1 root root 11M Apr 29 17:07 initramfs-5.15.32-gentoo-r1-x86_64.img
-rwxr-xr-x 1 root root 4.8M Apr 29 16:57 System.map-5.15.32-gentoo-r1-x86_64
-rwxr-xr-x 1 root root 9.2M Apr 29 16:57 vmlinuz-5.15.32-gentoo-r1-x86_64
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i have no additional space in my drive. i obviously regret not creating a larger /boot volume. was going off of the gentoo handbook at the time.
Last edited by craigdolson on Mon May 23, 2022 5:38 pm; edited 1 time in total |
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alamahant
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Joined: 23 Mar 2019
Posts: 3879
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| Posted: Mon May 23, 2022 5:37 pm Post subject: |
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Yes just delete all but the last working kernel
BUT you have
| Code: |
/boot $ ls
total 25M
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/boot is 253M
| Code: |
/dev/nvme0n1p1 253M 253M 0 100% /boot
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Why the problem?
Strange.....
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Last edited by alamahant on Mon May 23, 2022 5:42 pm; edited 2 times in total |
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craigdolson
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Joined: 30 Apr 2022
Posts: 15
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| Posted: Mon May 23, 2022 5:39 pm Post subject: |
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| alamahant wrote: | | Yes just delete all but the last working kernel |
it only appears as if there is 1 kernel listed in boot. thats the "old" one im trying to replace. |
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alamahant
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Joined: 23 Mar 2019
Posts: 3879
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| Posted: Mon May 23, 2022 5:46 pm Post subject: |
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Plz see my above updated post.
Dont delete it.Just move it to a safe location together with initramfs and System-map.
Ah I see your old kernel had an initramfs also.
You might need to create one for your new kernel also.
Is your / partition ext4?
You could try to shrink it a bit.
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craigdolson
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Joined: 30 Apr 2022
Posts: 15
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| Posted: Mon May 23, 2022 7:11 pm Post subject: |
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| alamahant wrote: | Plz see my above updated post.
Dont delete it.Just move it to a safe location together with initramfs and System-map.
Ah I see your old kernel had an initramfs also.
You might need to create one for your new kernel also.
Is your / partition ext4?
You could try to shrink it a bit. |
My / partition is ext4. i will look into that for the future. i was able to get the required files moved into the /boot directory and have booted into the new kernel. I will also take better care in the future to not allow a --depclean to remove my sources until im ready for a kernel upgrade.
Thanks again! |
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flysideways
Guru
Joined: 29 Jan 2005
Posts: 437
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| Posted: Mon May 23, 2022 8:01 pm Post subject: |
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| craigdolson wrote: | | alamahant wrote: | Plz see my above updated post.
Dont delete it.Just move it to a safe location together with initramfs and System-map.
Ah I see your old kernel had an initramfs also.
You might need to create one for your new kernel also.
Is your / partition ext4?
You could try to shrink it a bit. |
My / partition is ext4. i will look into that for the future. i was able to get the required files moved into the /boot directory and have booted into the new kernel. I will also take better care in the future to not allow a --depclean to remove my sources until im ready for a kernel upgrade.
Thanks again! |
I have not recently looked at the Handbook, but it never has introduced the --noreplace option to someone doing their install. --noreplace is your friend, mine too.
https://forums.gentoo.org/viewtopic-t-1148159-start-0-postdays-0-postorder-asc-highlight-noreplace.html
edit to add: I also use lsblk to remind myself what is mounted before doing emerges. It does no good to try and emerge something to an unmounted spot.
more: Just looked through all of the linked pages in the AMD64 Handbook, there is one unexplained use of --noreplace.
| Code: | First install net-misc/netifrc:
root #emerge --ask --noreplace net-misc/netifrc |
That is found on the configuring the system page. Nothing on the Configuring the kernel page or Working with Portage section. |
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craigdolson
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Joined: 30 Apr 2022
Posts: 15
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| Posted: Thu May 26, 2022 6:44 pm Post subject: |
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| Thanks again, everyone. I really like Gentoo. Been a Debian / Arch user for years. this is more challenging, but its more rewarding. |
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