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Groups > linux.debian.user > #172710

Change of UUID?

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Hello list,

I need some help for understanding things.

On my EEEPC I am usiing encrypted partitions, also swap is encrypted (all 
luks), too.
When I ssuspend to disk, the memory is written to the encrypted swap 
partition, which is /dev/mapper/swap.

In /etc/uswsusp.conf the UUID is identically to the output of "blkid /dev/
mapper/swap".

BUT - Now the problem: From time to time the UUID of /dev/mapper/swap changes 
and is then of course different to the entry in /etc/uswsusp.conf. 

This means, the system sometimes inhibits to boot (after resume), as it does 
not find the resume device. It can then be started by adding "noresume" to the 
kernel commands.

So, what might change the UUID? I did not format swap or similar. The only 
thing I do from time to time is starting a livefile on this computer, buit this 
should not change the UUID, shouldn't it?

But maybe, I have misunderstood, how UUID's are created. The other 
partiitions, which are also encrypted, do NOT change.

Or is it a bug? 

Thanks for any help to enlightening me.

Best regards

Hans

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Change of UUID? Hans <hans.ullrich@loop.de> - 2016-09-23 17:50 +0200
  Re: Change of UUID? Felix Miata <mrmazda@earthlink.net> - 2016-09-23 19:00 +0200
    Re: Change of UUID? Hans <hans.ullrich@loop.de> - 2016-09-23 19:20 +0200
      Re: Change of UUID? Felix Miata <mrmazda@earthlink.net> - 2016-09-23 19:40 +0200
    Installer trases UUID of swap - was [Re: Change of UUID?] Richard Owlett <rowlett@cloud85.net> - 2017-01-06 16:50 +0100
      Re: Installer trases UUID of swap - was [Re: Change of UUID?] Darac Marjal <mailinglist@darac.org.uk> - 2017-01-06 17:30 +0100
        Re: Installer trases UUID of swap - was [Re: Change of UUID?] David Wright <deblis@lionunicorn.co.uk> - 2017-01-06 17:50 +0100
          Re: Installer trases UUID of swap - was [Re: Change of UUID?] Richard Owlett <rowlett@cloud85.net> - 2017-01-06 19:00 +0100
            Re: Installer trases UUID of swap - was [Re: Change of UUID?] Felix Miata <mrmazda@earthlink.net> - 2017-01-06 20:20 +0100
              Re: Installer trases UUID of swap - was [Re: Change of UUID?] Richard Owlett <rowlett@cloud85.net> - 2017-01-07 11:10 +0100
            Re: Installer trases UUID of swap - was [Re: Change of UUID?] David Wright <deblis@lionunicorn.co.uk> - 2017-01-06 22:50 +0100
              Re: Installer trases UUID of swap - was [Re: Change of UUID?] Keith Bainbridge <keithrbaugroups@gmail.com> - 2017-01-06 23:20 +0100
              Re: Installer trases UUID of swap - was [Re: Change of UUID?] Richard Owlett <rowlett@cloud85.net> - 2017-01-07 11:10 +0100
        Re: Installer trases UUID of swap - was [Re: Change of UUID?] Jonathan Dowland <jmtd@debian.org> - 2017-01-06 18:20 +0100
        Re: Installer trases UUID of swap - was [Re: Change of UUID?] Richard Owlett <rowlett@cloud85.net> - 2017-01-06 19:00 +0100
        Re: Installer trases UUID of swap - was [Re: Change of UUID?] Felix Miata <mrmazda@earthlink.net> - 2017-01-06 20:20 +0100
      Re: Installer trases UUID of swap - was [Re: Change of UUID?] David Wright <deblis@lionunicorn.co.uk> - 2017-01-06 17:50 +0100
        Re: Installer trases UUID of swap - was [Re: Change of UUID?] Richard Owlett <rowlett@cloud85.net> - 2017-01-06 19:30 +0100

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