On Fri, Oct 08, 2010 at 09:16:46AM -0400, Davidlohr Bueso wrote:
> > - note that libblkid is interpreting partitions tables in the same
> > way how Linux kernel (for example empty are ignored). I expect the
> > same behaviour from partx.
>
>
> You mean this: When using blkid we don't have to show inexistent
> partitions, has opposed to the original partx:
Yes, it's fdisk job to work with things like hidden or special
partitions.
> original:
> # partx /dev/sda
> # 1: 2048-468520959 (468518912 sectors, 239881 MB)
> # 2: 468523006-488396799 ( 19873794 sectors, 10175 MB)
> # 3: 0- -1 ( 0 sectors, 0 MB)
> # 4: 0- -1 ( 0 sectors, 0 MB)
> # 5: 468523008-488396799 ( 19873792 sectors, 10175 MB)
>
> with libblkid:
> # ./partx /dev/sda
> # 1: 2048-468520959 (468518912 sectors, 239881 MB)
> # 2: 468523006-488396799 ( 19873794 sectors, 10175 MB)
> # 5: 468523008-488396799 ( 19873792 sectors, 10175 MB)
Note that partition serial number has to be also used from libblkid
(blkid_partition_get_partno()) -- it has to be compatible with kernel
(for example MBR logical partitions have partno >= 5).
Karel
--
Karel Zak <kzak@xxxxxxxxxx>
http://karelzak.blogspot.com
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