Mailinglist Archive: opensuse-features (214 mails)

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[openFATE 309157] Install and booting from partitioned MD devices
  • From: fate_noreply@xxxxxxx
  • Date: Wed, 10 Mar 2010 00:07:22 +0100 (CET)
  • Message-id: <feature-309157-5@xxxxxxxxxxxxxx>
Feature changed by: Dennis Olsson (DOlsson)
Feature #309157, revision 5
Title: Install and booting from partitioned MD devices

openSUSE-11.3: Unconfirmed
Priority
Requester: Important

Requested by: Dennis Olsson (dolsson)
Partner organization: openSUSE.org

Description:
Now that the kernel 2.6 supports partitioned MD devices, even to the
point where it is possible create a MD device from unpartitioned disks
, after which the partitions are created on the MD device, YaST2 needs
to be upgraded to be able to handle partitioned MD devices , just as
it should be possible to be able to create partitioned MD devices
consisting of unpartitioned disks .

Business case (Partner benefit):
openSUSE.org: Using partitioned MD devices makes it a lot easier to
create and handle MD devices in that one needs a lot less MD devices. E.
g. creating a RAID1 using two disks require first to partitioned the
disks (e.g. p1 for "/boot", p2 for "swap" and p3 for LVM), mark these
partitions as type "0xFD", after which each of these 3 partitions can
be put together as 3 x RAID1 MD devices (/dev/md[0-3]). Using
partitioned MD device makes this a lot easier by creating the MD device
out of the 2 unpartitioned disks having e.g. "/dev/md/raid1" and then
create the 3 partitions ("/dev/md/raid1p[1-3]").

Discussion:
#1: Dennis Olsson (dolsson) (2010-03-09 15:04:33)
This feature was created as a response to Bugzilla #585684.

#2: Dennis Olsson (dolsson) (2010-03-09 15:06:31)
Does this feature request have any connection with Feature #305883?
If yes, will the changes made for this feature for SLE 11 SP1 make it
into openSUSE 11.3?

#3: Arvin Schnell (aschnell) (2010-03-09 15:17:26) (reply to #2)
The code from feature #305883 is already included in openSUSE 11.3 but
you ask for more:
1) Creation of RAIDs with partitions.
2) Creation of RAIDs from whole disks instead of partitions.


+ #4: Dennis Olsson (dolsson) (2010-03-10 00:07:10) (reply to #3)
+ Yes, that is correct -- It would make life easier, when YaST would be
+ able to do exactly this (so that the work-around described below would
+ not be necessary).
+ BTW, I have just tested openSUSE 11.3 Milestone 3.
+ When I manually have created a partitioned MD RAID1 from 2
+ unpartitioned disks before starting the installation from DVD, I am
+ able to make use of the partitioned MD device in YaST as a "normal"
+ disk.  Although I can install on this MD device, it is not activated
+ nor used after a reboot (see Bugzilla #586837).



--
openSUSE Feature:
https://features.opensuse.org/309157

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