Hi
I have to back up a machine remotely so I am not able to do
it from single user mode. I use /etc/nologin to prevent
users logging in but recently a dump failed because of a user
writing to disk while the dump was still in progress.
This must have been either from a background job or via an
NFS mount. Both these are possible with the system in
multi-user mode.
Now all attempts to back up that disk partition fail - even
from single user mode. I have rebooted the machine and tried
again but the same problem occurs.
This is the relevant part of the output from my last attempt:
rdump: Mapping (Pass I) [regular files]
rdump: Mapping (Pass II) [directories]
rdump: Estimate: 269395 tape blocks on 0.00 volume(s)
rdump: Dumping (Pass III) [directories]
rdump: 0.19% done -- finished in 00:26
rdump: Dumping (Pass IV) [regular files]
rdump: 60.89% done -- finished in 00:03
rdump: Actual: 269403 tape blocks on 1 volume(s)
rdump: Level 0 dump on Wed Apr 24 08:07:33 1996 EST
rdump: Dump completed at Wed Apr 24 08:15:55 1996 EST
As you can see rdump claims to have dumped the correct number
of tape blocks but the time is too short. The estimate of
00:26 is about right based on past experience but the actual
time taken is only about 00:08. In any case rrestore can't
read the dump image produced so something has gone wrong.
I tried removing the /etc/dumpdates file to erase all record
of previous dumps but this made no difference.
Does anyone know how to cure this problem?
Thanks in advance for any suggestions.
Ian Mortimer
Department of Physics Tel : +61 7 3365 3416
University of Queensland Email: mortimer_at_physics.uq.oz.au
St. Lucia, Brisbane Fax : +61 7 3365 1242
Queensland, Australia. 4072.
Received on Wed Apr 24 1996 - 03:48:38 NZST