Diagnosing boot failure after apt and snap upgrades

[kozzm0]

Hello

I’m using Ubuntu 22.04 LTS with Gnome, booting with BIOS from HDD

A few days ago I ran an apt update/upgrade, followed by a snap refresh.

The next boot dropped out of splash screen to a text output, followed by a hung system system with the flashing “_” in the upper left corner.

The text mentioned 7 failed dependencies, 2 lines after the start of snap daemon, all similar to:

[DEPEND] Dependency failed for SSD NSS Service responder socket

for various “service responder sockets.”

It was the first upgrade in a while, so it probably included the kernel. Installed linux images are now

linux-image-5.15.0-152-generic/jammy-updates,jammy-security,now 5.15.0-152.162 amd64 [installed,auto-removable]
linux-image-5.15.0-153-generic/jammy-updates,jammy-security,now 5.15.0-153.163 amd64 [installed,automatic]
linux-image-5.15.0-163-generic/jammy-updates,jammy-security,now 5.15.0-163.173 amd64 [installed,automatic]
linux-image-generic/jammy-security,now 5.15.0.163.158 amd64 [installed,upgradable to: 5.15.0.164.159]

On the off chance the output about dependencies was significant, I reinstalled ubuntu-desktop at the suggestion of an online source, which resulted in successful boot on the default kernel, but with the Nvidia gpu driver misconfigured.

Rather than tweak the update further, I would like to
a) diagnose the boot failure after the update, and
b) regress that update and redo it successfully.

I’m currently booting and running without flaws on the 5.15.0-153 image. Only one of the -163 versions was added to GRUB. I have run no updates since the first one.

[yancek]

The link below to the NVidia forums might help. Generally, a new driver is/was required on each kernel update which is discussed at this link. I don’t use NVidia so can’t really speak to it.

https://forums.developer.nvidia.com/t/whats-the-process-for-fixing-nvidia-drivers-after-kernel-updates-in-ubuntu-20-04/208870/13i

[kozzm0]

thanks for the reply, however I don’t want to fix the driver on the new update. Not unless absolutely necessary. The overall problem was the unbootable state. Only after resolving that was a driver issue revealed.

What I’m hoping to do is roll back the -163 material, running on the working -153 version through grub advanced options, and try from there to update it without glitches. I don’t recall Nvidia problems from previous updates.

My hunch is updating apt and snap at basically the same time might be an issue. Why are there 2 different -163 kernel versions installed? hmmm. The 4th listed is actually an earlier version, is named very differently from the others. From different sources maybe, now conflicting?