[parted-devel] [Parted-maintainers] Debian Bug #578097: No support for CMS-formatted disks

[Stephen Powell]

OK, I have FBA DASD working with the DIAG driver now.  The only thing
that doesn't yet work is LDL disks on CKD DASD using the DIAG driver
that have been formatted with an old version of dasdfmt (which does not
include formatted_blocks in the label).  That's the only remaining case
where the partition size calculation depends on device geometry, which
is bogus when using the DIAG driver.  Nevertheless, parted does know
the correct size of the disk in sectors when using the DIAG driver.
It uses that information to calculate free space, which it annoyingly displays
if I don't create the metadata partitions properly.  So it may be possible
to eliminate that last remaining dependency on device geometry.  I'll
give it a shot.

(Of course, I am speaking in the context of LDL and CMS formatted disks.
CDL formatted disks still have a dependency on device geometry, and always
will.  But CDL formatted disks can only be created on CKD DASD and they
cannot use the DIAG driver; so obtaining the device geometry is no problem.)

-- 
  .''`.     Stephen Powell    
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