42.3 System crash at logout, possible cause: Leap 15 booting from cd

Hello, my system has crashed (another self-inflicted wound). Here is what happened: I started the PC as always, expecting to update to Leap 15 from CD. Strangely, L 42.3 booted; strangely because I had the changed the boot sequence to DVD but 42.3 booted. After running some 3 minutes on 42.3, I clicked on the icon for shutdown, and then the DVD-drive started. I tried to stop the process by repeatedly clicking the shutdown icon, but neither that nor the CTRL-Alt-Del sequence interrupted the process, so I shut off the power (this all happened within 30 - 40 seconds).

Then I changed the boot sequence to booting from SSD, but now the boot fails. The last message I get in the log when trying to boot from SSD is “Kernel Offset: disabled”.

I am considering the following three options to save my data: a) Try to boot/repair from a 42.3 DVD; b) Try to boot from a Leap 15 DVD; c) Switch SSD and load Leap 15 on that and mount the ‘bankrupt’ drive as an USB Flash disk; d) Try to save the data with the ‘dd_rescue’ software.

Comments and suggestions are welcome.

Best regards,
Jan Christian

After reading that, I am not at all sure what you actually did. And that makes it hard to suggest solutions.

On Mon, 17 Dec 2018 22:06:03 +0000, jc anker wrote:

> Hello, my system has crashed (another self-inflicted wound). Here is
> what happened: I started the PC as always, expecting to update to Leap
> 15 from CD. Strangely, L 42.3 booted; strangely because I had the
> changed the boot sequence to DVD but 42.3 booted. After running some 3
> minutes on 42.3, I clicked on the icon for shutdown, and then the
> DVD-drive started. I tried to stop the process by repeatedly clicking
> the shutdown icon, but neither that nor the CTRL-Alt-Del sequence
> interrupted the process, so I shut off the power (this all happened
> within 30 - 40 seconds).
>
> Then I changed the boot sequence to booting from SSD, but now the boot
> fails. The last message I get in the log when trying to boot from SSD is
> “Kernel Offset: disabled”.
>
> I am considering the following three options to save my data: a) Try to
> boot/repair from a 42.3 DVD; b) Try to boot from a Leap 15 DVD; c)
> Switch SSD and load Leap 15 on that and mount the ‘bankrupt’ drive as an
> USB Flash disk; d) Try to save the data with the ‘dd_rescue’ software.
>
> Comments and suggestions are welcome.

Change the boot sequence back to the original sequence.

What likely happened was you booted from the DVD, but when you didn’t
supply input, the system booted from the hard drive as normal. Not sure
why it didn’t shut down properly, but if you change the boot sequence
back to the original sequence, the system in theory should boot properly.

Jim


Jim Henderson
openSUSE Forums Administrator
Forum Use Terms & Conditions at http://tinyurl.com/openSUSE-T-C

Hello,
the point is that the boot sequence was DVD, then alternatively from disk
(DVD first, then HD). What happened was that the PC booted from HD, I
tried to stop the exercise by performing a regular shutdown, that seemed
to work (screen grayed out), the DVD-drive started spinning, no sign of a
shutdown, menu (shutdown, reboot etc) there but not responding,and I
powered off.

Next I removed the DVD, changed the boot sequence to HD first, then DVD.
Trying to boot from HD results in abort giving many error messages ending
with the following messages:

DWARF2 unwinder stuck at ret_from_fork+0x55/0x80

Leftover inexact backtrace: <ffffffff8163b0c0>]? rest_init+0x90/0x90

Kernel offst: disabled

— end Kernel panic - not syncing:UFS:Unable to mount root fs on unknown-block(0,0)

My plan at the moment is to install LEAP 15 on a clean, separate HD, and transfer
the data from the 42.3 HD (SSD) to the LEAP15 disk via USB.

Any suggestions re the proposed procedure are welcome.

Jan Christian

On Thu, 20 Dec 2018 15:16:04 +0000, jc anker wrote:

> My plan at the moment is to install LEAP 15 on a clean, separate HD, and
> transfer the data from the 42.3 HD (SSD) to the LEAP15 disk via USB.
>
> Any suggestions re the proposed procedure are welcome.

That sounds like a reasonable approach to me.


Jim Henderson
openSUSE Forums Administrator
Forum Use Terms & Conditions at http://tinyurl.com/openSUSE-T-C