Installation of kernel-default-4.1.13-5.1 failed hen upgrading from 13.2 to leap

Dear all, my upgrade to opensuse Leap from 13.2 gives this nasty error as I did zypper dup after

Installing: kernel-default-4.1.13-5.1 .......................[error]
Installation of kernel-default-4.1.13-5.1 failed:
Error: Subprocess failed. Error: RPM failed:    installing package kernel-default-4.1.13-5.1.x86_64 needs 7MB on the /boot filesystem


Abort, retry, ignore? [a/r/i] (a): 

linux-p46u:/boot # uname -a
Linux linux-p46u 3.16.7-29-desktop #1 SMP PREEMPT Fri Oct 23 00:46:04 UTC 2015 (6be6a97) x86_64 x86_64 x86_64 GNU/Linux
linux-p46u:/boot # df -h
Filesystem      Size  Used Avail Use% Mounted on
/dev/md2         21G  8.9G   12G  44% /
devtmpfs        3.9G     0  3.9G   0% /dev
tmpfs           3.9G  108K  3.9G   1% /dev/shm
tmpfs           3.9G  2.4M  3.9G   1% /run
tmpfs           3.9G     0  3.9G   0% /sys/fs/cgroup
/dev/md0         98M   58M   40M  60% /boot
/dev/md3         38G   35G  3.5G  92% /home

linux-p46u:/boot # ls -l /boot
total 46516
-rw-r--r-- 1 root root      512 Oct 25 15:09 backup_mbr
lrwxrwxrwx 1 root root        1 Jan 21 19:35 boot -> .
-rw-r--r-- 1 root root     1725 Oct 13 15:06 boot.readme
-rw-r--r-- 1 root root   148309 Aug  7 14:18 config-3.16.7-24-desktop
-rw-r--r-- 1 root root   148309 Oct 23 22:16 config-3.16.7-29-desktop
drwxr-xr-x 2 root root        6 Nov 23 10:53 dracut
drwxr-xr-x 2 root root      268 Jan 21 19:35 grub
drwxr-xr-x 7 root root      152 Jan  9 13:57 grub2
lrwxrwxrwx 1 root root       24 Oct 29 23:05 initrd -> initrd-3.16.7-29-desktop
-rw-r--r-- 1 root root 10079408 Jan  9 13:57 initrd-3.16.7-29-desktop
-rw-r--r-- 1 root root   424448 Oct 26  2014 message
-rw-r--r-- 1 root root   884968 Oct 23 23:05 symtypes-3.16.7-29-default.gz
-rw-r--r-- 1 root root   885991 Oct 24 00:28 symtypes-3.16.7-29-desktop.gz
-rw-r--r-- 1 root root   858320 Oct 24 00:30 symtypes-3.16.7-29-xen.gz
-rw-r--r-- 1 root root   938244 Nov 27 15:47 symtypes-4.1.13-5-default.gz
-rw-r--r-- 1 root root   942278 Nov 27 14:14 symtypes-4.1.13-5-pv.gz
-rw-r--r-- 1 root root   909421 Nov 27 14:34 symtypes-4.1.13-5-xen.gz
-rw-r--r-- 1 root root   309437 Aug  7 16:35 symvers-3.16.7-24-desktop.gz
-rw-r--r-- 1 root root   309437 Oct 24 00:21 symvers-3.16.7-29-desktop.gz
-rw-r--r-- 1 root root      516 Aug  7 16:35 sysctl.conf-3.16.7-24-desktop
-rw-r--r-- 1 root root      516 Oct 24 00:21 sysctl.conf-3.16.7-29-desktop
-rw-r--r-- 1 root root  3003177 Aug  7 16:11 System.map-3.16.7-24-desktop
-rw-r--r-- 1 root root  3003219 Oct 24 00:01 System.map-3.16.7-29-desktop
-rw-r--r-- 1 root root  6668759 Aug  7 16:46 vmlinux-3.16.7-24-desktop.gz
-rw-r--r-- 1 root root  6668910 Oct 24 00:30 vmlinux-3.16.7-29-desktop.gz
lrwxrwxrwx 1 root root       25 Oct 29 23:05 vmlinuz -> vmlinuz-3.16.7-29-desktop
-rw-r--r-- 1 root root  5685608 Aug  7 18:39 vmlinuz-3.16.7-24-desktop
-rw-r--r-- 1 root root       65 Aug  7 18:39 .vmlinuz-3.16.7-24-desktop.hmac
-rw-r--r-- 1 root root  5685768 Oct 24 03:00 vmlinuz-3.16.7-29-desktop
-rw-r--r-- 1 root root       65 Oct 24 03:00 .vmlinuz-3.16.7-29-desktop.hmac


Can somebody assist in getting this fixed?

Your /boot has not enough space. 98M is not really big enough for installing 3 kernels.

I would suggest to remove Kernel-3.16.7-24 before trying the upgrade again.
E.g. use YaST’s “Versions” tab, or run:

sudo zypper rm kernel-desktop-3.16.7-24.1

And it would definitely be a good idea to increase the partition size of /boot, or not use a separate /boot at all.