Question: Old Irix tape backup. Recovery on Linux (xfsdump/xfsrestore)

[Dave Chinner]

On Wed, Jun 29, 2016 at 06:48:29PM +0000, Anthony l wrote:
> Hello Anthony here,
> 
> I'm not sure if this is the correct place to send a question, If I am wrong I would appreciate if you could send me in the right direction.  I have come across the oss.sgi forums a lot looking for a solution to my problem but I could not find much.
> 
> 
> Here's my situation.
> 
> I have a bunch a tapes that were created way back when using an IRIX system. Some kind of version 6, perhaps even the latest version. anyway I am able to peak at the headers to determind the the file type on the drive is indeed:
> 
> xFSdump0....   or when I make a sample using 'dd if=/dev/nst0 of=./test.img' '+ 'file test.img' I get XFSDUMP archive (version 2)

dump version 2....

> So, instinctively to get the data off the tapes I would think would be as simple as:
> 
> sudo xfsrestore -f /dev/nst0 ./path to where I want it stored
> 
> Then I get:
> 
> using dump format 3

Oops, wrong format version.

> What am I doing wrong here ?? any help would be great.

Try telling restore to use dump format version 2 by using the -K
option.

Cheers,

Dave.
-- 
Dave Chinner
david at fromorbit.com