[Bug 2008892] [NEW] "Gave up waiting for root file system device" after fresh installation of Ubuntu 22.04

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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.

** Affects: plymouth (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: bot-comment
-- 
"Gave up waiting for root file system device" after fresh installation of Ubuntu 22.04
https://bugs.launchpad.net/bugs/2008892
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