mt setblk fails
I am trying to read data from a DAT tape written on a foreign machine
(probably a Sun). I use dd to read from it, but invariably get 0 blocks.
I am able to read a tape written by a SCO machine, but the SCO machine cannot
read a tape I write.
Following the SCSI HOWTO, I tried changing the hardware block size with
`mt setblk 0'. Any use of `mt setblk' always gives an I/O error.
The HOWTO says that GNU mt does not support this option, and mt -V says that
it is the GNU version. However the man page lists setblk as an option.
There seems no longer to be mt source at tsx-11.mit.edu:/pub/linux/ALPHA/scsi
where the HOWTO says a copy supporting the setblk option may be found.
My DAT drive is a DDS-1 cannibalised from an HP 710 workstation,
model HP35470A Rev 1009 SCSI revision 2.
SCSI card: Adaptec 2940UW
/bin/mt from package cpio version 2.4.2-13
kernel 2.0.32patch5 i686
libc6 2.0.6-2
Is there anything I can do? Is it likely that this drive doesn't support
changing the block size?
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Oliver Elphick Oliver.Elphick@lfix.co.uk
Isle of Wight http://www.lfix.co.uk/oliver
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