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Downgrade header in Debian Buster
Downgrade header in Debian Buster
Hi Guys
I'm running Debian Buster with Kernel 4.19. I am wondering whether it is possible to downgrade to a lower kernel such as 4.9? The reason i am asking is due to compatibility issues with my HP computer. If it's not possible to downgrade, how can i upgrade to a less problematic higher kernel. I've searched google and your forum and i cant find a suitable answer. Thanks in advance
I'm running Debian Buster with Kernel 4.19. I am wondering whether it is possible to downgrade to a lower kernel such as 4.9? The reason i am asking is due to compatibility issues with my HP computer. If it's not possible to downgrade, how can i upgrade to a less problematic higher kernel. I've searched google and your forum and i cant find a suitable answer. Thanks in advance
Re: Downgrade header in Debian Buster
Your title: Downgrade header Debian Buster.
"....but wondering whether it is possible to downgrade to a lower kernel such as 4.9 ? , compatibility issues with my HP computer"
The answer could be Yes , No , May be, Not a good idea, if you don't tell more about which problem, which PC, or show where you explained your problem.
"....but wondering whether it is possible to downgrade to a lower kernel such as 4.9 ? , compatibility issues with my HP computer"
The answer could be Yes , No , May be, Not a good idea, if you don't tell more about which problem, which PC, or show where you explained your problem.
Re: Downgrade header in Debian Buster
I'm seeking to downgrade the kernel to 4.9 if possible. any distro with kernel 4.19 loads a frozen desktop or a blank screen on this specific laptop. I once experimented with an mx linux spin i created in a virtual machine. I downgraded the kernel to 4.14..(i think) installed AMD drivers, did another custom spin and it ran fine on the computer in question. I posted a thread about the issue about the computer in question here: http://forums.debian.net/viewtopic.php?f=17&t=142680 non of the solutions helpedL_V wrote:Your title: Downgrade header Debian Buster.
"....but wondering whether it is possible to downgrade to a lower kernel such as 4.9 ? , compatibility issues with my HP computer"
The answer could be Yes , No , May be, Not a good idea, if you don't tell more about which problem, which PC, or show where you explained your problem.
Re: Downgrade header in Debian Buster
Just to check something, what report this:
Code: Select all
lspci -k | grep -A3 VGA
dpkg -l firmware* | grep amd
grep ^d /etc/apt/sources.list
uname -a
lscpu | grep name
grep -r vmlinuz /boot/
- stevepusser
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Re: Downgrade header in Debian Buster
Maybe a 5.1 Liquorix kernel for Buster would bypass those regressions in 4.19.
You could also backup your system and try installing the Stretch 4.9 kernel to see how much fire that makes come out of your laptop.
You could also backup your system and try installing the Stretch 4.9 kernel to see how much fire that makes come out of your laptop.
MX Linux packager and developer
- Head_on_a_Stick
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Re: Downgrade header in Debian Buster
Using outdated kernels is unwise because they contain known (and published) security vulnerabilities. I suppose you could try the stretch kernel (if it supports your hardware) but tracking down the regression and reporting it to the kernel developers would be the best solution. The only problem then is that you would have to wait for Debian to include the fix.
https://wiki.debian.org/DebianKernel/GitBisect
https://wiki.debian.org/DebianKernel/GitBisect
deadbang
Re: Downgrade header in Debian Buster
brolly@brolly:~# lspci -k | grep -A3 VGAL_V wrote:Just to check something, what report this:Code: Select all
lspci -k | grep -A3 VGA dpkg -l firmware* | grep amd grep ^d /etc/apt/sources.list uname -a lscpu | grep name grep -r vmlinuz /boot/
00:02.0 VGA compatible controller: InnoTek Systemberatung GmbH VirtualBox Graphics Adapter
Kernel driver in use: vboxvideo
Kernel modules: vboxvideo
00:03.0 Ethernet controller: Advanced Micro Devices, Inc. [AMD] 79c970 [PCnet32 LANCE] (rev 40)
brolly@brolly~# dpkg -l firmware* | grep amd
ii firmware-amd-graphics 20190114-1 all Binary firmware for AMD/ATI graphics chips
brolly@brolly:~# grep ^d /etc/apt/sources.list
deb http://ftp.uk.debian.org/debian/ buster main contrib non-free
deb-src http://ftp.uk.debian.org/debian/ buster main contrib non-free
deb http://deb.debian.org/debian buster main
deb-src http://deb.debian.org/debian buster main
deb http://deb.debian.org/debian buster-updates main
deb-src http://deb.debian.org/debian buster-updates main
deb http://deb.debian.org/debian buster-backports main contrib non-free
deb http://security.debian.org/debian-security/ buster/updates main
deb-src http://security.debian.org/debian-security/ buster/updates main
brolly@brolly:~# uname -a
Linux brolly 4.19.0-5-amd64 #1 SMP Debian 4.19.37-5+deb10u1 (2019-07-19) x86_64 GNU/Linux
brolly@brolly:~# lscpu | grep name
Model name: AMD A12-9720P RADEON R7, 12 COMPUTE CORES 4C+8G
brolly@brolly:~# grep -r vmlinuz /boot/
/boot/grub/grub.cfg: linux /boot/vmlinuz-4.19.0-5-amd64 root=UUID=9b87060e-ad92-431e-9569-bc7422c5feac ro quiet splash resume=UUID=f92e6072-56d6-4764-8aee-09dc7594bdae
/boot/grub/grub.cfg: linux /boot/vmlinuz-4.19.0-5-amd64 root=UUID=9b87060e-ad92-431e-9569-bc7422c5feac ro quiet splash resume=UUID=f92e6072-56d6-4764-8aee-09dc7594bdae
/boot/grub/grub.cfg: linux /boot/vmlinuz-4.19.0-5-amd64 root=UUID=9b87060e-ad92-431e-9569-bc7422c5feac ro single
brolly@brolly:~#
Re: Downgrade header in Debian Buster
Thanks for the info. I am testing in a VM so not much risk there. I have a clone of the VM in another folder if anything goes wrongHead_on_a_Stick wrote:Using outdated kernels is unwise because they contain known (and published) security vulnerabilities. I suppose you could try the stretch kernel (if it supports your hardware) but tracking down the regression and reporting it to the kernel developers would be the best solution. The only problem then is that you would have to wait for Debian to include the fix.
https://wiki.debian.org/DebianKernel/GitBisect
Re: Downgrade header in Debian Buster
I've successfully installed Liquorix 4.20, 5.0, 5.1, and 5.2. How do i switch to a different header after installing? I will try the installed headers one at a time and see which one works beststevepusser wrote:Maybe a 5.1 Liquorix kernel for Buster would bypass those regressions in 4.19.
You could also backup your system and try installing the Stretch 4.9 kernel to see how much fire that makes come out of your laptop.
- Head_on_a_Stick
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Re: Downgrade header in Debian Buster
You don't need to "switch", the different headers can be co-installed without conflict.brolly wrote:How do i switch to a different header after installing?
deadbang
Re: Downgrade header in Debian Buster
What i meant was there is no option to choose which kernel i want to boot into in the advanced options of the boot screen all i see is kernel 14.9Head_on_a_Stick wrote:You don't need to "switch", the different headers can be co-installed without conflict.brolly wrote:How do i switch to a different header after installing?
- Head_on_a_Stick
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Re: Downgrade header in Debian Buster
Trybrolly wrote:in the advanced options of the boot screen all i see is kernel 14.9
Code: Select all
# update-grub
deadbang
Re: Downgrade header in Debian Buster
Still confused by the terminology used in this thread between header and kernel, including the title of the thread.
* linux-image = package of the Kernel (mandatory)
* linux-headers = package of Header files of Kernel (optional)
* linux-image = package of the Kernel (mandatory)
* linux-headers = package of Header files of Kernel (optional)
Re: Downgrade header in Debian Buster
No joy with that. I tried it prior to you posted the aboveHead_on_a_Stick wrote:Trybrolly wrote:in the advanced options of the boot screen all i see is kernel 14.9The Debian kernels supply a script that updates the bootloader configuration after upgrades, not sure about the Liquorix versions.Code: Select all
# update-grub
Re: Downgrade header in Debian Buster
I don't use grub2 for years because much too complex for my use, and really boring to configure, but there is everything available to create your custom configuration files
For orientation / Adding custom entry to grub-pc's grub2
http://forums.debian.net/viewtopic.php?t=36716
http://forums.debian.net/viewtopic.php?p=132969#p132969
For orientation / Adding custom entry to grub-pc's grub2
http://forums.debian.net/viewtopic.php?t=36716
http://forums.debian.net/viewtopic.php?p=132969#p132969
- sunrat
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Re: Downgrade header in Debian Buster
If the kernel doesn't show in boot menu after update-grub, maybe it is not correctly installed. As mentioned by L_V above, terminology is confusing headers and kernels.
Please run this command and post the output:
Please run this command and post the output:
Code: Select all
dpkg -l|grep linux-image
“ computer users can be divided into 2 categories:
Those who have lost data
...and those who have not lost data YET ” Remember to BACKUP!
Those who have lost data
...and those who have not lost data YET ” Remember to BACKUP!
Re: Downgrade header in Debian Buster
@brolly
You have this CPU: AMD A12-9720P RADEON R7, 12 COMPUTE CORES 4C+8G
Did you try to install this package to see what happen with 4.19.0-5 kernel (and not header)
amd64-microcode Processor microcode firmware for AMD CPUs
You have this CPU: AMD A12-9720P RADEON R7, 12 COMPUTE CORES 4C+8G
Did you try to install this package to see what happen with 4.19.0-5 kernel (and not header)
amd64-microcode Processor microcode firmware for AMD CPUs