I have set up my new backuppc filesystem on an LVM volume and decided on
using ext3 for the filesytem. The old filesytem is reiserfs. I
would like to copy the old filesystem to the new larger volume. The
backuppc FAQ states:
The best way to copy a pool file system, if possible, is by copying
the raw device at the block level (eg: using dd). Application level
programs that understand hardlinks include the GNU cp program with
the -a option and rsync -H. However, the large number of hardlinks
in the pool will make the memory usage large and the copy very slow.
Don't forget to stop BackupPC while the copy runs.
At the risk of exposing my ignorance, If I use dd won't it copy
filesystem information as well? Maybe I'm just tired and not thinking
clearly. but would something like this work?
dd if=/var/mapper/vg-reiserfs_volume of=/var/mapper/vg-larger_ext3volume
I know that rsync would take a really long time. (about 1.1tb of data,
with all the hardlinks) Should I just try cp -a?
Any other suggestions?
Thanks,
Ben
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