ignite restore fails: tar error, blocksize changed, source_read 5

[isaac_loven]

Hi HPers,
We are trying to ignite a new server form an image created on another machine.

The ignite tape was created on a B2600 running HP 11.11 ( model 9000/785/B2600). The Tape drive is a Ultrium 1-SCSI.

The target machine is a L3000-7x. (with 11.11).
Its tape drive is a Ultrium 2-SCSI .

When trying to ignite the target machine we get the errors:

ERROR: Tar: error! blocksize changed
ERROR: File: /opt/ignite/ui not found.
ERROR: File: /opt/ignite/help not found.
NOTE: Retrying loadfile command...
ERROR: source_read failed: I/O error (errno = 5).

I rebooted the box back to its origional o/s, and tried to read the tape without success:
mt fsf 1 (moves to the start of the next file)
tar tvf /dev/rmt/0m fails to read past the first 20 files, and hangs.

Help !
Thanks, Isaac Loven

[Michael Tully · Accepted solution]

WIth ignite you *must* use a non-rewindable device, not only to create the archive but also to get files from it.
How are you creating the backup?

To re-read the tape:

# mt -t fsf 1 /dev/rmt/0mn
# tar tvf /dev/rmt/0mn

I am not totally sure you can build an L class from a B class anyway, as they are quite different.

[isaac_loven]

Michael,
You are right. You can not build an L class from a B class:
To see what models can be ignited, i found:

strings /opt/ignite/boot/INSTALLFS | grep 9000 | grep L

I still want to get the data off with tar, but I can't, even with 0mn. I will try to update tar on that machine.

Thanks for pointing me in the right direction.

Isaac