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On Wed, Nov 25, 2020 at 12:15 PM <thelma@×××××××××××.com> wrote: |
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> |
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> On 11/25/2020 02:50 AM, Michael wrote: |
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> > On Wednesday, 25 November 2020 06:30:05 GMT thelma@×××××××××××.com wrote: |
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> > |
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> >> On 11/24/2020 10:08 PM, thelma@×××××××××××.com wrote: |
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> >>> I'm getting a kernel panic when booting a new system. |
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> >>> |
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> >>> kernel panic - not syncing: VFS: unable to mount root fs on unknown-block |
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> >>> (0,0) |
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> >>> |
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> >>> fstab: |
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> >>> LABEL=boot /boot vfat |
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> > noauto,noatime 1 2 |
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> >>> root=UUID=d32946b3-2236-4998-80dd-68b7d78e0c7b / |
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> > ext4 noatime 0 1 |
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> >>> LABEL=swap none swap |
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> > sw 0 0 |
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> >>> |
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> >>> I even use: emerge --ask sys-kernel/genkernel |
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> >>> genkernel all |
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> >>> |
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> >>> So all the driver are compile-in (nothing should be missing) |
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> >>> |
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> >>> ls -al /boot/vmlinu* /boot/initramfs* |
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> >>> -rwxr-xr-x 1 root root 11221820 Nov 24 21:30 |
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> >>> /boot/initramfs-5.4.72-gentoo-x86_64.img -rwxr-xr-x 1 root root 9036672 |
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> >>> Nov 24 10:56 /boot/vmlinuz-5.4.72-gentoo -rwxr-xr-x 1 root root 8513920 |
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> >>> Nov 24 21:18 /boot/vmlinuz-5.4.72-gentoo-x86_64 |
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> >> This problem is solved, it seems to me I was booting old kernel. |
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> >> Removing old kernel and re-running: |
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> >> grub-mkconfig -o /boot/grub/grub.cfg |
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> >> |
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> >> Solved the problem. |
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> > |
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> > Glad you got your new disk booting. |
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> > |
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> > Worth mentioning your fstab syntax is not entirely correct. According to 'man |
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> > fstab' you can specify a device with LABEL=<label>, as long as you have set |
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> > up a filesystem label with e.g. mkfs, or tune2fs. So, your "LABEL=boot" is |
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> > correct. |
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> > |
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> > UUID on the other hand is meant to be specified like so: |
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> > |
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> > UUID=<uuid> |
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> > |
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> > In your case it would be: |
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> > |
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> > UUID=d32946b3-2236-4998-80dd-68b7d78e0c7b |
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> > |
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> > instead of it being preceded by "root=". |
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> |
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> The "genkernel all" is working but I need to find out which option is it |
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> that allow booting the drive. The genkernel.conf is different from |
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> standard kernel .config |
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> |
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> Removing options from genkernel is not easy. |
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|
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With most initramfs you just pass root=UUID=foo on the kernel command |
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line. In the past genkernel has been quirky - I use dracut and you'd |
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definitely just use root=UUID=foo there. |
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|
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-- |
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Rich |
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