Bob McKay wrote:
Thanks Wiebe,
Sorry I've been offline on this, I spent the last five days chasing
an obsure bug in
my courseware s/w.
Well, we now have a clear definition of the problem: rdiff-backup
fails in attempting
to backup to FAT32, but succeeds fine when backing up to the fedora
logical volume
(I'm not sure what the fs is - whatever core 4 installs as the default
right out of the box).
Type "mount" and you'll see. I guess it's ext3, or perhaps reiserfs.
The command file for backing up to FAT32, and the resulting error file,
are listed below
(please ignore any extraneous <cr>s, they're a result of the paste). I
don't have much
choice about the file system format for the backup, I need to use the
same file system to
share a HD between windows and linux, far as I know the only file system
they can both
write to is FAT32. My understanding was that FAT32 was one of the
supported file
structures for rdiff-backup?
FAT32 is indeed supported. My concern is more with the filesystem itself. It's
not very sophosticated and it's unreliable. After all, it's a souped-up version
of a floppy-disk filesystem (FAT12).
BTW, if I'm not mistaken, one of the things rdiff-backup uses for storing and
retrieving information, is the filesystem itself. Modification times are taken
directly out of the filesystem I believe. Now, it also stores this info in meta
files, right? The thing is, which of those does it use when both are available?
If it uses the actual filesystem, your backup archive may get corrupt when
windows strawls through it with a "find file" command. Or, you get .desktop
(etc) files in every dir. Also for this reason, I think it's best to store your
backup somewhere where it is not touched.
Is you data worth 80-100 dollars? If so, buy second harddisk (possible an
external one, USB2). It's a very cheap backup medium. Of course, you could also
buy two extra and build that RAID1 array as well ;)
As for the error you're getting, it seems like a bug, I think you can report it.
There is no error message that I can see, only warnings.
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