I've failed in restoring a diskdump (dd) backup. I'm running Red Hat 6.0
(kernel 2.2.5-15) on Intel and I have a HP Colorado 14GBe tape drive
attached to the paralell port. I'm loading the PARIDE subsystem as
modules (insmod parport;insmod paride;insmod epat;insmod pt). What I've
done is the following:
First I wanted to backup my primary slave drive. I did
# dd if=/dev/hdb of=/dev/pt0
2504880+0 records in
2504880+0 records out
Sometime later (at another linux session) I wanted to do a restore to
the same primary slave drive. I did
# dd if=/dev/pt0 of=/dev/hdb
0+0 records in
0+0 records out
Why doesn't dd read anything from tape? I'm a newbie in this field and
would be most grateful for any help in troubleshooting this. I know the
pt driver doesn't implement the 'mt -f /dev/pt0 status' command that I
would otherwise have liked to use here. What other tools are there
available to check if there is actually something on the tape?
/Christian Eriksson
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