On Tue, 24 Mar 2020 00:19:10 +0200 Răzvan Sandu <rsandu2...@yahoo.com>
wrote:
Package: mdadm
Version: 4.1-1
Severity: normal
Dear Maintainer,
My Debian stable system, running on old i386 hardware, suddenly became
unbootable after doing full upgrades via apt.
Via upgrades, the system passed from kernel 4.19.0-6-i686-pae to the
corresponding 4.19.0-8-i686-pae.
After the upgrade, when booting with 4.19.0-8, it says:
md/raid0:md0: cannot assemble multi-zone RAID0 with default_layout setting
md/raid0: please set raid0.default_layout to 1 or 2
See bug #944676. The issue was addressed in Bullseye but not in Buster.
Patch "md/raid0: avoid RAID0 data corruption due to layout confusion."
was backported to Debian kernel 4.19 but the related patch "Add support
for RAID0 layouts" was not backported to mdadm 4.1-1.
Buster fails to assemble RAID0 arrays with members of different sizes
created with mdadm < 4.1-4 unless kernel module raid0 parameter
"default_layout" is set to 1 or 2 (depending on actual layout).
