Kubuntu won't boot

[Liam Proven]

On Thu, 29 Jul 2021 at 22:11, rikona <rikona at sonic.net> wrote:

> The "[  OK  ] Started Manage, Install and Generate Color Profiles." line
> is only in failed boot logs. Could that be related to the problem?

I suspect this is probably a coincidence. It doesn't sound anything problematic.

There used to be a widespread Windows boot problem where if you did a
verbose boot, the last thing to load was an APM driver... but it was a
red herring: a false "fault". It just happened to be the last DLL
loaded before the NT kernel started running, and so it happened to be
the last thing you saw before the BSOD. But it was unrelated -- I
vaguely remember it was an EIDE controller issue or something.

Colour calibration doesn't sound risky to me.

> I was also able to copy much of the original SSD data to a HD using the
> CLI. Some of the files may still have permission problems [some came
> from other sources, and I had permission problems even before this] and
> did not get copied. But, looking at what was copied, I got perhaps 95%
> of the files, so MUCH better than nothing. Not all, though, so I'd like
> to avoid doing anything that might lose that data on the original SSD.
>
> Again, many thanks...

Again, I advocate trying to get into the GRUB menu. It _is_ there,
just not shown on computers with only 1 OS.

See if you can get into your motherboard setup program.  If you can,
then the time to hammer away on Shift/Esc/Shift/Esc is _right after_
the point you needed to press a key for setup!

The latest BIOS for your motherboard was only a couple of weeks ago:

https://www.asus.com/Motherboards-Components/Motherboards/PRIME/PRIME-Z590-A/HelpDesk_BIOS/

Version 1001
2021/07/13 11.42 MBytes

PRIME Z590-A BIOS 1001
Improve system stability and performance

So you *need* to update that.

The manual is here:
https://dlcdnets.asus.com/pub/ASUS/mb/LGA1200/ROG_STRIX_Z590-A_GAMING_WIFI/E18208_ROG_STRIX_Z590-A_GAMING_UM_V3_PRINT.pdf

Page 70 tells you how to enter the BIOS settings. It's pressing DEL basically.

P61 & P71 tell you how to update the firmware from USB without using
an OS at all.

When troubleshoot, I suggest...

Step 1: update the BIOS. If there's some weird little kernel problem
then this might let the computer get past it.

Step 2: find a way to enter GRUB. Try:
• recovery mode
• removing `quiet splash` from the kernel parameters -- I just have
someone else steps to do this
• add `nomodeset` in case of graphics problems

If any of them get you in, then:

Step 3: install all updates *and the HWE stack.*


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