[BBLISA] Re: untested backups

[Brian O'Neill]

It's been years since I've used dump/restore, and I can't say I've used 
it on Linux, but as far as I know its still got its BSD roots.

"i", "x" and "r" should be mutually exclusive options.

"i" is for an interactive restore, where you can pick and choose files 
and directories.

"x" is to extract either everything or a named path. I rarely used this 
option.

"r" is to restore the whole filesystem. A checkpoint file is maintained 
(restoresymtable I believe) that allows for restoring a full dump, then 
incrementals, and properly removing files that no longer existed at the 
time of the incremental. This is what you want to use if you are 
restoring the whole filesystem, especially if you need to restore a set 
of incrementals.

restore always extracted to current directory.

It looks like Linux also supports a -N option, which will not actually 
write to any files on the filesystem.


Scott Ehrlich wrote:
> Now that I'm back at work, I reviewed the restore man page and some 
> other web pages on restore, and want to verify:
> 
> I'm in a scratch/temp directory, and type:
> restore rf (maybe with i, too) /dev/tape
> 
> the result will restore the dump to the current scratch/temp location so 
> nothing in the active filesystem is overwritten?
> 
> If true, I'll test it asap.
> 
> Please advise.
> 
> Thanks.
> 
> Scott
> 
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