[Dirvish] Use existing backup as initial image
nkelly at tarsus.co.uk
Fri Jan 12 13:38:34 PST 2007
I have been using Dirvish successfully for a year or so now on our
internal network and it works great.
We now have a requirement to backup some data from another office. This
office has an ADSL line and rather than initially trying to suck all the
data the wrong way up the data pipe, I rsync'ed it to a removeable disk
I have now created the first dirvish image using --init and pointing to
the data on the removeable disk. This works fine and I get a new image
However the problem is that when I run point dirvish (via ssh) at the
remote server it insists on copying over all the data again. I think it
sees the image that has come off the removeable disk as it does not
complain about there not being any default images etc and/or ask for --init.
If I copy over a small subset of data (via ssh) using --init and then
try subsequent backups it works fine so I my actual config mechanism works.
I tried editing the removeable disk's --init image 'summary' file to
reflect all the same hostnames etc as used during the network copy but
this did not help.
The removeable disk is FAT32 and as such the permissions and ownership
did not transfer properly. I thought that rsync compares the file sizes
rather than meta data but perhaps perms/owner make it see it as a
totally new file? I have tried doing this with rsync but it did not
make any difference.
Anyone have any ideas? Is there a particular procedure for this? If I
can get it to work then I'll add something to the wiki.
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