Re: [Bug-tar] Major Bug with tar and incremental backup using the -l and --listed-incremental flags

[Joerg Schilling]

Terry Barnaby <address@hidden> wrote:

> Hi,
>
> There has been a major bug (at least to me :) ) in tar since version 1.13.7
> and it is still there in 1.14.90.
>
> I normally perform full backups with a command similar to:
>
> tar -c -l -f /dev/st0 --listed-incremental=stamp / /usr /dist /src /home

Doing it this way makes no sense with any bckup system.

While star in theory could be enhanced to be able to later find the bounds 
between the different filesystems (it currently definitlely does not), GNU tar
does not archive enough information to be able to do so.

The result is a mixture of all 5 filesystems on extraction. It may be that
the last extract (/home) will remove files from the previous filesystems if 
deletion on extraction is properly implemented.

Jörg

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