new xen kernel 5.xx

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haaber

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Dec 16, 2020, 3:32:19 AM12/16/20
to qubes-users
I have still instabilities with the xen kernels 5.x (sudden system
freeze). I also have a small /boot and hold only the last 3 kernels.
They are right now:

vmlinuz-4.19.155-1.pvops.qubes.x86_64
vmlinuz-5.4.78-1.qubes.x86_64
vmlinuz-5.4.83-1.qubes.x86_64

I would like to mark the (for me very stable) kernel 4.19.155 as "do not
erase while updating" and remove the (for me) useless kernel
vmlinuz-5.4.78-1.qubes.x86_64. How can I do that, please? I fear to
make a mess when just "playing around". I also want to keep 5.x kernels
for appVM's (they work well). Thank you!

Ulrich Windl

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Dec 20, 2020, 6:41:48 PM12/20/20
to qubes...@googlegroups.com
On 12/16/20 9:32 AM, haaber wrote:
> I have still instabilities with the xen kernels 5.x (sudden system
> freeze). I also have a small /boot and hold only the last 3 kernels.

I can (outside of Qubes OS) trigger a kernel freeze when the kernel
starts swapping on a thin-provisioned LV. I think I wrote that to this
list some time ago. You could also find some details at kernel.org's
bugzilla.

> They are right now:
>
> vmlinuz-4.19.155-1.pvops.qubes.x86_64
> vmlinuz-5.4.78-1.qubes.x86_64
> vmlinuz-5.4.83-1.qubes.x86_64
>
> I would like to mark the (for me very stable) kernel 4.19.155 as "do not
> erase while updating" and remove the (for me) useless kernel
> vmlinuz-5.4.78-1.qubes.x86_64. How can I do that, please?  I fear to
> make a mess when just "playing around". I also want to keep 5.x kernels
> for appVM's (they work well).   Thank you!

I think you'll have to find out what actually makes your kernel freeze
(if it freezes at all).

>

awokd

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Dec 21, 2020, 4:38:55 PM12/21/20
to qubes...@googlegroups.com
haaber:
I think I was able to keep an older version around before by (very
carefully) uninstalling the middle version from dom0, as it keeps 3
copies by default. I believe I used dnf and specified the exact version
to remove.

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Alex Smirnoff

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Dec 25, 2020, 6:05:37 PM12/25/20
to qubes-users
Is there another way to boot to an older kernel rather than boot from other media and edit xen.cfg?



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