Similar to:
- Ubuntu 18.04 LTS installed in VirtualBox hang at boot up after system update
- Ubuntu 18.04 freezes after update
- Ubuntu doesn't boot after upgrading kernel
But this happened just now, after an upgrade to kernel version 5.4.0-73-generic
.
The graphical session freezes on boot (just a blank screen after the disk checking message). The text console still works (I can switch to it with Ctrl-Alt-F2).
$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 18.04.5 LTS
Release: 18.04
Codename: bionic
$ uname -a
Linux bionic-vbox-vm 5.4.0-73-generic #82~18.04.1-Ubuntu SMP Fri Apr 16 15:10:02 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux
VirtualBox 6.1.22 r144080 (Qt 5.6.2) win64 in Windows 7.