dump | restore fails: unknown tape header type 1853384566

[Rolf G Nielsen]

Mikhail T. wrote:
> Hello!
> 
> I'm trying to migrate a filesystem from one disk to another using:
> 
>    dump a0hCf 0 32 - /old | restore -rf -

Try
dump -a0 -h 0 -C 32 -f - /old
instead.
Your command line should work, but I've had trouble with similar ones 
and have been able to solve it by separating the options.

> 
> (/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?
> 
> The system runs 7.0-STABLE from July 6th, i386. I just tried updating 
> the dump and restore from source (latest 7.x) -- the error is the same...
> 
> Please, advise. Thanks!
> 
>    -mi
> 
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> 
> 


-- 

Sincerly,

Rolf Nielsen