update-kernel script -- mounting /media/usb failed

update-kernel

%<...
mount: mounting /dev/sda1 on /media/usb failed: Resource busy

The situation is probably associated with the transition modloop to overlayfs.

Detailed output and other details: https://pastebin.com/raw/NEaHuSNU

(from redmine: issue id 10527, created on 2019-05-31)

Edited Jan 14, 2021 by Kevin Daudt

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