After updating dom0 and restarting I can no longer boot. It loads GRUB then after that the screen turns black and it restart the computer
What should I do?
1 Like
OMG I just updated dom0 (kernel update) too… do I dare to reboot now? 
Qubes OS Repository for Dom0 2.9 MB/s | 3.0 kB 00:00
Dependencies resolved.
==============================================================================================================
Package Architecture Version Repository Size
==============================================================================================================
Installing:
kernel x86_64 1000:6.6.74-1.qubes.fc37 qubes-dom0-cached 12 M
kernel-devel x86_64 1000:6.6.74-1.qubes.fc37 qubes-dom0-cached 14 M
kernel-modules x86_64 1000:6.6.74-1.qubes.fc37 qubes-dom0-cached 72 M
kernel-qubes-vm x86_64 1000:6.6.74-1.qubes.fc37 qubes-dom0-cached 18 M
Removing:
kernel x86_64 1000:6.6.63-1.qubes.fc37 @qubes-dom0-cached 40 M
kernel-devel x86_64 1000:6.6.63-1.qubes.fc37 @qubes-dom0-cached 65 M
kernel-modules x86_64 1000:6.6.63-1.qubes.fc37 @qubes-dom0-cached 427 M
kernel-qubes-vm x86_64 1000:6.6.63-1.qubes.fc37 @qubes-dom0-cached 518 M
Transaction Summary
==============================================================================================================
Install 4 Packages
Remove 4 Packages
Total size: 116 M
Is this ok [y/N]: y
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My Librem 14v1-01 boots just fine after the latest update.
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Can I undo the update from chroot?
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Search for “Boot Troubleshooting” in the documentation and here on the forum.
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There should be a grub entry to boot an older kernel version.
4 Likes
none of them work, I can boot other linux distros
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does qubes have a live environment where I can test it?
can I backup my qubes from rescue environment?
1 Like
Hi bootl - and welcome to Qubes OS
It’s still unclear to me, which steps you have tried (in order to narrow down the cause of the problem you see - can you describe them in more details?
1 Like
I updated dom0 then continued using the computer - no problem. Later after rebooting, it reaches the screen where I can edit GRUB boot option. I select one and it shows that it’s loading the OS but the gray screen where you enter the password never shows up, instead it turns completely blank and reboots the computer in a loop
What have I tried?
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I tried all available boot entry in GRUB, including choosing advanced and the past kernels which existed
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There are 2 boot entries for Qubes in UEFI boot menu, I tried both but no difference
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booting other Linux distribution, works fine only Qubes OS has issues
I am technical enough to chroot or troubleshoot with Linux, but I see no error message so i am stumped
What have I not tried?
- Installation completes successfully but then boot loops or hangs on black screen
- Installation completes successfully but then system crash/restarts on next boot
Why? Because it did not seem relevant since it worked until today should I try it?
2 Likes
Please provide kernel version(s) and Xen version you see on the GRUB menu. Also please provide brief hardware specification. And the Qubes OS version.
p.s. Since you say you were able to chroot, I assume that the local installation was successfully mounted and the filesystem is intact.
2 Likes
Could you try and add:
console=vga vga=,keep loglvl=all guest_loglvl=all noreboot=1 earlyprintk=xen
to the Xen kernel line and remove quiet from the Kernel line in GRUB and boot?
4 Likes
Yes no problems there. Will respond with versions and hardware after trying the suggestion by @ChrisA
2 Likes
Xen 4.17.5
Kernel 6.6.74-1, 6.6.68-1 and 6.6.65-1
Latest Qubes stable version
AMD CPU
AMD GPU
1 Like
What happens, if you boot with:
dom0_mem=1G,max:1G dom0_max_vcpus=1 dom0_vcpus_pin=1 console=vga vga=,keep loglvl=all guest_loglvl=all noreboot=1 earlyprintk=xen
?
2 Likes
New result, image looked broken to me on forum so I put it on imgur
1 Like
Managed to boot by setting dom0_mem=4G,max:4G after looking up solution online. Thank you @ChrisA for showing me how to find the error. Don’t know why it happened but now it’s fixed
4 Likes