I'm unable to replicate the issue of a typical apt upgrade to the linux- raspi -1015 kernel on hirsute server breaking boot, with either SD card storage or a USB as the root device.
Copying things between boot partitions can be done as a temporary fix for things, but ultimately (as discussed on IRC), you want to use "sudo flash-kernel" after a successful boot to ensure that the kernel & initrd on the boot partition match whatever's on the root (including modules etc). On the Xubuntu desktop question: how exactly did you set up the Xubuntu desktop? There's no official release of Xubuntu for the Pi, so I'm guessing this was either an Ubuntu server or a desktop image onto which the xubuntu-desktop package was installed? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1937924 Title: kernel upgrade via apt 5.11.0.1015-raspi kills the OS on Raspberry Pi4B To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-raspi/+bug/1937924/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs