Ubuntu
linux-signed-azure package

Boot freeze on hyper-v instance

Bug #1982826 reported by grapland on 2022-07-26

This bug affects 1 person

Affects		Status	Importance	Assigned to	Milestone
	linux-signed-azure (Ubuntu)	New	Undecided	Unassigned

Bug Description

After upgrade to this version of kernel, the hyper-v instance of ubuntu 20.04.4 (on windows server 2022) freeze on boot.

Revision history for this message

grapland (grapland) wrote on 2022-07-26:

screen shot on freeze. Edit (18.4 KiB, image/png)

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lotuspsychje (lotuspsychje) wrote on 2022-07-26:

Thank you for taking the time to report this bug and helping to make Ubuntu better. Please execute the following command only once, as it will automatically gather debugging information, in a terminal:
apport-collect 1982826

When reporting bugs in the future please use apport by using 'ubuntu-bug' and the name of the package affected. You can learn more about this functionality at https://wiki.ubuntu.com/ReportingBugs.

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Aaron Rainbolt (arraybolt3) wrote on 2022-07-27:

You may be able to determine why the system is freezing by manually editing the kernel command line in GRUB and removing the "quiet splash" part of the command line. Then boot with this modified command line. This will make the Linux kernel print debugging information to your screen - this will tell you the last successful step of the boot process, and it may give you a kernel panic message, which contains a wealth of debugging data, and may even give you the solution to the problem.