plymouth is only responsible for the splash screen, it has nothing to do
with why you've ended up at a shell. Reassigning to mdadm as a starting
point.
What is /dev/mapper/isw_behfgagcfc_ASUS_OS? I don't recognize this as a
standard name and don't know what package is supposed to configure it at
boot time.
** Changed in: plymouth (Ubuntu)
Status: New => Incomplete
** Package changed: plymouth (Ubuntu) => mdadm (Ubuntu)
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https://bugs.launchpad.net/bugs/2008892
Title:
"Gave up waiting for root file system device" after fresh installation
of Ubuntu 22.04
Status in mdadm package in Ubuntu:
Incomplete
Bug description:
After running the 22.04 installer, my laptop would restart and after
seeing the initial loading screen I'm dropped to a busybox shell. It
makes no difference what boot option I use from my UEFI or installing
with or without disk encrpytion.
The installer finds my disk without problems, but afer rebooting the
Ubuntu screen hangs for around a minute before dropping me into a
busybox shell.
In this shell I do the following:
```
# ls /dev/mapper
control isw_behfgagcfc_ASUS_OS
# kpartx -av /dev/mapper/isw_behfgagcfc_ASUS_OS
add map isw_behfgagcfc_ASUS_OS1 (253:1): 0 1048576 linear 253:0 2048
add map isw_behfgagcfc_ASUS_OS2 (253:2): 0 3500032 linear 253:0 1050624
add map isw_behfgagcfc_ASUS_OS3 (253:3): 0 495579136 linear 253:0 4550656
# cryptsetup luksOpen /dev/mapper/isw_behfgagcfc_ASUS_OS3 WHYEVER
Enter passphrase for /dev/mapper/isw_behfgagcfc_ASUS_OS3: ***
# exit
```
After which the Ubuntu loading screen re-appears and I have to enter
the disk decrypt key again. Then my system boots fine, but I think
it's a bug to have these commands to manually every time.
If I install without disk-encryption, I still have to run "kpartx -av
/dev/mapper/isw_behfgagfc_ASUS_OS" in the busybox shell before I'm
able to continue.
Attached the log from apport inside the finally booted Ubuntu
installation with disk-encryption on.
PS: The same error occurs when upgrading from from 21.10 to 22.04.
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