dump | restore fails: unknown tape header type 1853384566
danny at cs.huji.ac.il
Tue Mar 24 00:44:28 PDT 2009
> Daniel O'Connor ÎÁÐÉÓÁ×(ÌÁ):
> On Tuesday 24 March 2009 11:55:07 Mikhail T. wrote:
> >> I'm trying to migrate a filesystem from one disk to another using:
> >> dump a0hCf 0 32 - /old | restore -rf -
> >> (/old is already mounted read-only). The process runs for a while and> >> then stops with:
> >> [...]
> >> DUMP: 22.85% done, finished in 3:57 at Tue Mar 24 01:03:21 2009
> >> DUMP: 24.66% done, finished in 3:50 at Tue Mar 24 01:00:58 2009
> >> DUMP: 26.44% done, finished in 3:43 at Tue Mar 24 00:59:14 2009
> >> unknown tape header type 1853384566> >> abort? [yn]
> >> Any idea, what's going on? Why can't FreeBSD's restore read FreeBSD's
> >> dump's output?
> What happens if you don't use the cache?
> No big difference:
> > dump a0f - /old | restore -rf -
> DUMP: 17.25% done, finished in 3:27 at Tue Mar 24 05:42:00 2009
> DUMP: 20.36% done, finished in 3:09 at Tue Mar 24 05:28:13 2009
> DUMP: 23.83% done, finished in 2:50 at Tue Mar 24 05:14:32 2009
> unknown tape header type -621260722> abort? [yn]
> Looks like a junk value somewhere... Unitialized variable or some such.
can you try splitting it in 2, ie no pipe?
dump a0f some.file /old (or dump 0f - /old | gzip -c > file.dump.gz)
restore rf some.file
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