cvs commit: src/sys/amd64/conf GENERIC src/sys/arm/conf EP80219 src/sys/conf NOTES files files.powerpc options src/sys/geom geom_apple.c geom_gpt.c src/sys/geom/part g_part.c g_part.h g_part_apm.c g_part_gpt.c g_part_if.m src/sys/i386/conf GENERIC ...

Robert Watson rwatson at
Wed Feb 7 21:02:05 UTC 2007

On Wed, 7 Feb 2007, Marcel Moolenaar wrote:

>>> Evolve the ctlreq interface added to geom_gpt into a generic partitioning 
>>> class that supports multiple schemes. Current schemes supported are APM 
>>> (Apple Partition Map) and GPT. Change all GEOM_APPLE anf GEOM_GPT options 
>>> into GEOM_PART_APM and GEOM_PART_GPT (resp).
>>> The ctlreq interface supports verbs to create and destroy partitioning 
>>> schemes on a disk; to add, delete and modify partitions; and to commit or 
>>> undo changes made.
>> Does this mean we can expect to see the disabling of GEOM exclusive-use 
>> protections disappear from normal administrative activities soon, as there 
>> will now be approved channels to incrementally change the layout of in-use 
>> partition tables?
> Yes, that's the idea. A tool will be developed first that uses these verbs 
> (though I already have a regression test suite capable of creating and 
> modifying APM and GPT partitions). After that the idea is to migrate other 
> partitioning schemes and slicers into this framework. The end-result being a 
> single tool for partitioning disks with any and all schemes supported by the 
> framework and using the ctlreq mechanism to work on live disks.

Sounds great!


Robert N M Watson
Computer Laboratory
University of Cambridge

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