During the update I got a message:
The upgrade has aborted. The upgrade needs a total of 239 M free spaceon disk '/boot'. Please free at least an additional 39.1 M of diskspace on '/boot'. You can remove old kernels using 'sudo aptautoremove' and you could also set COMPRESS=xz in/etc/initramfs-tools/initramfs.conf to reduce the size of yourinitramfs.
root@localhost # df -h /bootFilesystem Size Used Avail Use% Mounted on/dev/sda2 468M 242M 191M 56% /boot root@localhost # ls -lah /boottotal 235Mdrwxr-xr-x 4 root root 4.0K Oct 29 10:41 .drwxr-xr-x 20 root root 4.0K Dec 1 2022 ..-rw-r--r-- 1 root root 256K Jul 5 09:53 config-5.15.0-118-generic-rw-r--r-- 1 root root 256K Sep 27 18:21 config-5.15.0-124-genericdrwxr-xr-x 4 root root 4.0K Oct 18 06:08 grublrwxrwxrwx 1 root root 29 Oct 18 06:07 initrd.img -> initrd.img-5.15.0-124-generic-rw-r--r-- 1 root root 100M Oct 29 10:41 initrd.img-5.15.0-118-generic-rw-r--r-- 1 root root 100M Oct 29 10:40 initrd.img-5.15.0-124-genericlrwxrwxrwx 1 root root 29 Oct 18 06:08 initrd.img.old -> initrd.img-5.15.0-118-genericdrwx------ 2 root root 16K May 19 2020 lost+found-rw------- 1 root root 6.0M Jul 5 09:53 System.map-5.15.0-118-generic-rw------- 1 root root 6.0M Sep 27 18:21 System.map-5.15.0-124-genericlrwxrwxrwx 1 root root 26 Oct 18 06:07 vmlinuz -> vmlinuz-5.15.0-124-generic-rw------- 1 root root 12M Jul 5 10:17 vmlinuz-5.15.0-118-generic-rw------- 1 root root 12M Sep 27 19:47 vmlinuz-5.15.0-124-genericlrwxrwxrwx 1 root root 26 Oct 18 06:08 vmlinuz.old -> vmlinuz-5.15.0-118-generic root@localhost # uname -r5.15.0-124-genericThe question is: will system boot after I delete /boot/initrd.img-5.15.0-118-generic, /boot/System.map-5.15.0-118-generic, /boot/vmlinuz-5.15.0-118-generic? After deleting, shall I point initrd.img.old and vmlinuz.old to the same current 124 version?