On Aug 1, Stefan Viljoen wrote:
> Hi!
>
> I poster recently about exactly how to mix using Windows backup software and
> ftape to store a Windows backup and a Linux backup on the same tape.
>
> I today tried to use the ftmt -f /dev/qft0 seod command in order to space to
> the end of the "Windows" part of the tape so that I can write the first
> Linux backup that tape would get after the Windows segment of the tape.
/dev/qft0 is the rewind on close device. You must use the
non-rewinding device /dev/nqft0.
> What's strange is that when I entered the seod command, my tape drive did
> NOT space - its LED just flashed. I would have though that the motor would
> run to physically position the tape at the end of the Windows segment.
Ftape just sets an internal pointer. On the next read or write it
will wind to the correct position, but only if you use /dev/nqft0.
> Also, doing a status command after writing the windows backup says there is
> only 63 megabytes used - but my Windows software has just written more than
> 2gig of data to the tape!
>
> I can only think this is some kind of incompatibility - would I be better
> off to get another physical tape to make Linux backups on, or am I making
> some kind of mistake?
That is always a good idea, as you can't replace one of the backups on
a tape without erasing the other. Also there was a problem fixed in
ftape-4.04a, that ftape interpreted the size of windows volumes one
sector to short.
Jochen
