Filesystem corruption


I've brought my machine to the computer shop. They checked everything,
especially the PSU and the main board. All the capacitors are okay.
They couldn't find anything.

The main board is quite old, must be more than ten years. The HDD is 3
1/2 years old.

Now I still don't know the reason of the data corruption, which
wrecked my Kubuntu system. I've installed a new Ubuntu-19.04, and
found no corruption so far. The problem can't be reproduced. This
includes my dm-cache, which I've set up anew.

I'm worrying that the problem might hiddenly continue, and I don't
notice in time. :-( Good thing that I have multiple backups.

Thanks to all contributors to this thread.



Re: Filesystem corruption

By Little Girl at 07/08/2019 - 14:31

Hey there,

That's really good news and must be reassuring to hear.

I'd say that hard shut-downs are probably to blame. Somewhere in this
thread you had mentioned that you've done that at times. Not shutting
down a computer properly can corrupt a file system.

I don't know what the reason is for the non-standard shut-downs
you've done, but if those are done when all else fails, you might
want to consider adding the Alt+SysRq key combination to your

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See also:

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I've used Alt+SysRq+R+E+I+S+U+B to reboot or Alt+SysRq+R+E+I+S+U+O to
shut down on the very rare occasions when my system wouldn't

Re: Filesystem corruption

By Volker Wysk at 07/08/2019 - 14:46


Zitat von Little Girl < ... at gmail dot com>:

Except that the caus is still unclear.

I haven't done any hard shut-downs since I've installed Ubuntu 19.04,
but now the problem struck again - see the other message "Filesystem
corruption - Problem strikes again".

I haven't had any bad trouble with hard shut-downs so far. You can
still do alt-ctrl-delete. There was never anything this badly broken...