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Install and booting from partitioned MD devices

Feature state

openSUSE Distribution
Unconfirmed

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 .

User benefit:

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


icons/user_comment.png D. O. wrote: (8 years ago)

This feature was created as a response to Bug #585684.

icons/user_comment.png D. O. wrote: (8 years ago)

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?

icons/user_comment.png A. S. wrote: (8 years ago)

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.
icons/user_comment.png D. O. wrote: (8 years ago)

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 Bug #586837).

Last change: 7 years ago
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