Ubuntu
mdadm package

  1. Eoan (19.10)
  2. Bug #1850540
  3. Comment #16

Comment 16 for bug 1850540

Revision history for this message
dann frazier (dannf) wrote :

= linux/eoan verification =
I created a multi-zone array on current eoan, then upgraded to the -proposed kernel:

[ 4.021562] md/raid0:md0: !!! DEFAULTING TO ALTERNATE LAYOUT !!!
[ 4.021563] md/raid0: Please set raid0.default_layout to 1 or 2
[ 4.021564] md/raid0: Read the following page for more information:
[ 4.021564] md/raid0: https://wiki.ubuntu.com/Kernel/Raid0LayoutMigration

I verified that the array is active.

= linux/bionic verification =
Similarly:
[ 1.830003] md/raid0:md0: !!! DEFAULTING TO ALTERNATE LAYOUT !!!
[ 1.835050] md/raid0: Please set raid0.default_layout to 1 or 2
[ 1.839513] md/raid0: Read the following page for more information:
[ 1.844259] md/raid0: https://wiki.ubuntu.com/Kernel/Raid0LayoutMigration

= linux/xenial verification =
Similarly:
[ 3.157653] md: raid0 personality registered for level 0
[ 3.170468] md/raid0:md0: !!! DEFAULTING TO ALTERNATE LAYOUT !!!
[ 3.176180] md/raid0: Please set raid0.default_layout to 1 or 2
[ 3.181684] md/raid0: Read the following page for more information:
[ 3.187394] md/raid0: https://wiki.ubuntu.com/Kernel/Raid0LayoutMigration