15 Feb
2010
15 Feb
'10
7:19 a.m.
On Thursday, 28 January 2010 at 15:27:11 -0500, Brad Spencer wrote:
On Thursday, 21 January 2010 at 12:44:49 -0800, Corey Lindsly wrote:
dump is non-portable. In general, you can only restore to the same
kind of system as you write to.
Not entirely true... dump and restore in NetBSD seems to be portable
among NetBSD systems at least.
I don't know how far this goes, if it is just NetBSD, or something
inherent to all 4.4BSD derived systems.
I've just tried to list a FreeBSD 7.2 dump on NetBSD 5.0.1:
Extract directories from tape
Mangled directory: reclen less than DIRSIZ (12 < 16)
(many repetitions)
Mangled directory: reclen less than DIRSIZ (12 < 16)
. is not on the tape
Root directory is not on tape
abort? [yn] y
Interestingly, FreeBSD restore can understand the NetBSD dump. But
it's not even backwards compatible between major releases of FreeBSD
even, so this might be the same issue as with FreeBSD. Either way, I
don't think it's a good idea to count on it for NetBSD in the future.
Greg
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Sure. I know. Big SATA drives are cheap over
here as well, like
1.5T for 110 EURO or somesuch. I just happen to own a LTO3 and
enough tapes already, so the economics are not the issue. Just need
to have a proper piece of open source backup software that runs on
FreeBSD.
And what, precisely, is the problem with using dump?
It will span multiple tapes.