Bug 15665 - add support for partitionable RAIDs (eg: /dev/md_d0p2 & /dev/md0p2)
Summary: add support for partitionable RAIDs (eg: /dev/md_d0p2 & /dev/md0p2)
Status: NEW
Alias: None
Product: Mageia
Classification: Unclassified
Component: RPM Packages (show other bugs)
Version: Cauldron
Hardware: All Linux
Priority: High normal
Target Milestone: Mageia 7
Assignee: Mageia tools maintainers
QA Contact:
URL:
Whiteboard:
Keywords:
Depends on:
Blocks: 15791
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Reported: 2015-04-09 15:22 CEST by Thierry Vignaud
Modified: 2016-10-10 22:43 CEST (History)
3 users (show)

See Also:
Source RPM: drakx-installer-stage2
CVE:
Status comment:


Attachments

Description Thierry Vignaud 2015-04-09 15:22:14 CEST
Since 2.6.x kernels[1], a new type of MD device was introduced, a partitionable array:
- device names is: md -> md_d
- partitions: md_d0p2

Since kernel-2.6.28[2], regular arrays can be partitioned too, eg: /dev/md/md0p2.

We should add support for both in diskdrake.

Then we could show such partitioned RAIDs in the partitioning wizard (bug #5800)...


[1] http://git.kernel.org/cgit/linux/kernel/git/tglx/history.git/log/drivers/md/md.c?qt=grep&q=partition
http://git.kernel.org/cgit/linux/kernel/git/tglx/history.git/commit/drivers/md/md.c?id=1797a796c7333ed02bfd8883bbaafaec867ddeb2

[2] http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/drivers/md?id=92850bbd71

Reproducible: 

Steps to Reproduce:
Thierry Vignaud 2015-04-09 15:22:23 CEST

CC: (none) => pterjan

Comment 1 Thomas Backlund 2015-04-09 17:10:55 CEST
This would help for mdadm managed isw_ raids too as the fakeraid disk is 

/dev/md126

and partitions on it:

/dev/md126p1
/dev/md126p2

and so on...

CC: (none) => tmb

Thierry Vignaud 2015-04-10 08:57:08 CEST

Summary: add support for partitionable RAIDs => add support for partitionable RAIDs (eg: /dev/md_d0p2 & /dev/md0p2)

Thierry Vignaud 2015-04-29 08:59:17 CEST

Blocks: (none) => 15791

Comment 2 Thierry Vignaud 2015-05-22 14:12:47 CEST
Example: see attachment #6612 [details]:
* error: failed to add partition #4 on /dev/mapper/isw_baecbdbe_Sys at /usr/lib/libDrakX/partition_table/gpt.pm line 154.
Samuel Verschelde 2015-06-06 16:26:35 CEST

Target Milestone: --- => Mageia 6

Marja Van Waes 2016-07-21 15:24:30 CEST

CC: (none) => marja11
Assignee: bugsquad => pterjan

Comment 3 Samuel Verschelde 2016-10-10 22:01:12 CEST
Pascal (or other members of the Mageia Tools maintainer group), this bug report is currently targeted for Mageia 6. Is that something you can handle or should we postpone to Mageia 7?

CC: (none) => mageiatools

Samuel Verschelde 2016-10-10 22:01:27 CEST

Priority: Normal => High

Comment 4 Pascal Terjan 2016-10-10 22:26:34 CEST
I am not planning to work on that anytime soon.

A first step would be to update devices.pm (we probably want to change it to use /sys first and fallback on hardcoded stuff instead if the opposite).
Comment 5 Samuel Verschelde 2016-10-10 22:43:07 CEST
(In reply to Pascal Terjan from comment #4)
> I am not planning to work on that anytime soon.
> 
> A first step would be to update devices.pm (we probably want to change it to
> use /sys first and fallback on hardcoded stuff instead if the opposite).

Ok, I'll set the Milestone as Mageia 7 unless someone steps in rapidly.

CC: mageiatools => (none)
Assignee: pterjan => mageiatools
Target Milestone: Mageia 6 => Mageia 7


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