Re: [Bug-tar] incremental backups--full backup after upgrading to newer tar

[Sergey Poznyakoff]

Hi Andrew,

> I upgraded to a newer version of my distro that has tar 1.19 and now my
> level 1 and level 2 incrementals do not work anymore, instead they do a
> full level 0 backup.

On the first backup, tar needs to convert existing snar files to new
format, supplying default values for missing fields. Unfortunately, this
causes full backups to be generated. This is done only once, and
subsequent backups will work as expected. 

Regards,
Sergey