Tar error !

[Christian Aguilar Varga]

Hello,
I have a HP-UX 10.20 system, where a script is programmed to execute in the cron. This script use the tar command to join a file set *.dat.

My question is:

What maning do the following sentence have?
Tar: error! blocksize changed

Thank you!

[Christopher McCray_1]

Hello,

Check out this doc:

http://support1.itrc.hp.com/service/cki/docDisplay.do?docLocale=en_US&docId=200000007948507

or

http://support1.itrc.hp.com/service/cki/docDisplay.do?docLocale=en_US&docId=200000038250707

Hope this helps

Chris

[Shannon Petry]

The document may eventually get there, but I'll put it quick what it means.

Extracting:
This error shows up when extracting tar files, which have a different block size than tar thinks they should. This can be caused by running out of filespace making a tar file, end of media reached when using a device, or the contents of the file changed as tar was archiving.

Creating:
The file that tar was putting to tape changed in transit. I.E. I put a 100M file on tape, 1/2 way through the write process someone deletes the file.

Before touching a file, tar extracts the attributes from the file from the file header. This is a built in safety.

Regards,
Shannon