Score:1

mdadm: No arrays found in config file or automatically

ar flag

On a 22.04.1 Ubuntu HP EliteBook 8570w laptop the following message is displayed a number of times when I boot it without an external disk (two partitions, data not system) plugged in:

mdadm: No arrays found in config file or automatically

And in the middle of these messages, one line indicating:

mdadm: error opening /dev/md?*: No such file or directory

There's no RAID at all on this machine, and apart it takes slightly longer to boot, I see no difference when booted.

I'd like to find the way to solve this in order to accelerate a bit the boot sequence when I don't have this external drive plugged in.

I added theses lines in /etc/mdadm/dmadm.conf, followed by update-initramfs -u

ARRAY <ignore> devices=/dev/sda
ARRAY <ignore> devices=/dev/sdb
ARRAY <ignore> devices=/dev/sdc
ARRAY <ignore> devices=/dev/sdd
ARRAY <ignore> devices=/dev/sde
ARRAY <ignore> devices=/dev/sdf

And I also switched AHCI to IDE in the BIOS for no difference (regarding this topic).

Any advice?

lc flag
I have the same issue. It is not unique to Ubuntu; Debian can have it as well: https://serverfault.com/questions/1043282/how-is-mdadm-stopped-from-doing-an-auto-scan-at-startup This fix did not help me, FWIW.
Score:0
li flag

I had same issue. I found the answer at

Gave up waiting for suspend/resume device

The answer for me was to run sudo update-initramfs -u

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