Hi Raphaël,
Thanks for your suggestions.
Raphaël wrote:
1) check that infile, if it's a block device, is not mounted
2) check that outfile does not belong to the same mount point that the
device intended to be rescued.
I'm not sure how portably these two can be implemented because posix
does not cover the concept of mounting. Maybe they'll need to be
compiled conditionally.
I think 1 implies 2. I.e., if infile is not mounted, outfile can't
"belong to the same mount point".
3) warning/confirmation if intending to reuse a mapfile specifying a
non-existing outfile
This one is easy. Maybe should be enabled by --ask.
4) ideally, warning/confirmation if device changed since the previous
run (eg: store/check a couple of smart metadata?)
The only portable, more or less reliable metadata I can think of is
size. And even this can change after a reboot. Also the change of device
may be intended. For example when continuing the rescue of a CDROM from
another drive. I'm not sure how this could be implemented without
causing more confusion than good.
I'll work at least on 1 and 3 for the next version of ddrescue.
Best regards,
Antonio.
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