Tried apt install -f, and do some check. Updated kernel looks installed, but the system still boot from original kernel.
** Attachment added: "full_kernel_upgrade.log" https://bugs.launchpad.net/ubuntu/+source/linux-raspi2/+bug/1841955/+attachment/5285640/+files/full_kernel_upgrade.log -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1841955 Title: Can't upgrade kernel on raspberry pi3a+ To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-raspi2/+bug/1841955/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs