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Install and booting from partitioned MD devices

Feature state

openSUSE Distribution


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]").


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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