Hi there,
On Sat, 11 Jul 2026, Matthias@... wrote:
I found in my pool a strange file:
ls -lh /var/lib/backuppc/pool/1936080.0.0
-rw-r----- 1 backuppc backuppc 47G 10. Jul 09:09
/var/lib/backuppc/pool/1936080.0.0
head /var/lib/backuppc/pool/1936080.0.0
<<< Oracle VM VirtualBox Disk Image >>>
??0K??[,
Is it a normal temporary file ...
It depends what you mean by "normal". If you normally use BackupPC to
back up images of media for virtual machines, then yes, it is a normal
temporary file. But I always think it's silly to use BackupPC in that
way because unless you actually stop the VM during the backup what you
get after the backup completes will be an inconsistent mess; typically
it may take hours to back up an entire VM image, but while the VM is
running the image will change from one second to the next. Trying to
de-duplicate VM backups is doomed to fail. VM software does a better
job of keeping snapshot versions of VM images and you can do it from a
script (vboxmanage snapshot --help). Consider also that long-running
backups might hold up other backups.
or went something wrong?
Temporary files should be deleted after they've served their purpose.
Perhaps the backup did not complete, but maybe it's still running - or
(more precisely) maybe it was still running when you found this file.
There should be something useful in the logs.
Should I delete it?
BackupPC_nightly will do that for you (see sub CleanV4PoolTempFiles)
but you can do it if you're careful if you wish. The "1936080" part
of the file name "1936080.0.0" is the PID of the BckupPC process which
wrote it. If that process is no longer running you can just delete
the file. If it is still running it's better to let BackupPC_nightly
do it. If it's still running but for some reason not doing anything
useful then I'd recommend that you first kill it.
Maybe you should also take a look at $Conf{BackupFilesExclude}. :)
--
73,
Ged.
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