root@devac03:~# ls -latrt /boot
total 24196
drwx------ 2 root root 16384 Dec 9 16:38 lost+found
-rw------- 1 root root 12989184 Dec 16 23:39 vmlinuz-4.3.0-5-generic
-rw------- 1 root root 2441677 Dec 16 23:39 System.map-4.3.0-5-generic
-rw-r--r-- 1 root root 63422 Dec 16 23:39 config-4.3.0-5-generic
-rw-r--r-- 1 root root 517933 Dec 16 23:39 abi-4.3.0-5-generic
lrwxrwxrwx 1 root root 26 Jan 6 16:23 initrd.img -> initrd.img-4.3.0-5-generic
lrwxrwxrwx 1 root root 23 Jan 6 16:24 vmlinuz -> vmlinuz-4.3.0-5-generic
-rw-r--r-- 1 root root 8602602 Jan 14 13:50 initrd.img-4.3.0-5-generic
-rw------- 1 root root 69632 Jan 14 13:51 bootmap
drwxr-xr-x 3 root root 4096 Jan 14 13:51 .
drwxr-xr-x 22 root root 4096 Jan 14 13:51 ..
root@devac03:~# dpkg -i *-6*deb
Selecting previously unselected package linux-headers-4.3.0-6.
(Reading database ... 71559 files and directories currently installed.)
Preparing to unpack linux-headers-4.3.0-6_4.3.0-6.17_all.deb ...
Unpacking linux-headers-4.3.0-6 (4.3.0-6.17) ...
Selecting previously unselected package linux-headers-4.3.0-6-generic.
Preparing to unpack linux-headers-4.3.0-6-generic_4.3.0-6.17_s390x.deb ...
Unpacking linux-headers-4.3.0-6-generic (4.3.0-6.17) ...
Selecting previously unselected package linux-image-4.3.0-6-generic.
Preparing to unpack linux-image-4.3.0-6-generic_4.3.0-6.17_s390x.deb ...
Done.
Unpacking linux-image-4.3.0-6-generic (4.3.0-6.17) ...
Selecting previously unselected package linux-image-extra-4.3.0-6-generic.
Preparing to unpack linux-image-extra-4.3.0-6-generic_4.3.0-6.17_s390x.deb ...
Unpacking linux-image-extra-4.3.0-6-generic (4.3.0-6.17) ...
Setting up linux-headers-4.3.0-6 (4.3.0-6.17) ...
Setting up linux-headers-4.3.0-6-generic (4.3.0-6.17) ...
Setting up linux-image-4.3.0-6-generic (4.3.0-6.17) ...
Running depmod.
update-initramfs: deferring update (hook will be called later)
Examining /etc/kernel/postinst.d.
run-parts: executing /etc/kernel/postinst.d/apt-auto-removal 4.3.0-6-generic /boot/vmlinuz-4.3.0-6-generic
run-parts: executing /etc/kernel/postinst.d/initramfs-tools 4.3.0-6-generic /boot/vmlinuz-4.3.0-6-generic
update-initramfs: Generating /boot/initrd.img-4.3.0-6-generic
Using config file '/etc/zipl.conf'
Building bootmap in '/boot/'
Building menu 'zipl-automatic-menu'
Adding #1: IPL section 'ubuntu' (default)
Preparing boot device: dasda (0200).
Done.
run-parts: executing /etc/kernel/postinst.d/pm-utils 4.3.0-6-generic /boot/vmlinuz-4.3.0-6-generic
run-parts: executing /etc/kernel/postinst.d/zz-zipl 4.3.0-6-generic /boot/vmlinuz-4.3.0-6-generic
Using config file '/etc/zipl.conf'
Building bootmap in '/boot/'
Building menu 'zipl-automatic-menu'
Adding #1: IPL section 'ubuntu' (default)
Preparing boot device: dasda (0200).
Done.
Setting up linux-image-extra-4.3.0-6-generic (4.3.0-6.17) ...
run-parts: executing /etc/kernel/postinst.d/apt-auto-removal 4.3.0-6-generic /boot/vmlinuz-4.3.0-6-generic
run-parts: executing /etc/kernel/postinst.d/initramfs-tools 4.3.0-6-generic /boot/vmlinuz-4.3.0-6-generic
update-initramfs: Generating /boot/initrd.img-4.3.0-6-generic
Using config file '/etc/zipl.conf'
Building bootmap in '/boot/'
Building menu 'zipl-automatic-menu'
Adding #1: IPL section 'ubuntu' (default)
Preparing boot device: dasda (0200).
Done.
run-parts: executing /etc/kernel/postinst.d/pm-utils 4.3.0-6-generic /boot/vmlinuz-4.3.0-6-generic
run-parts: executing /etc/kernel/postinst.d/zz-zipl 4.3.0-6-generic /boot/vmlinuz-4.3.0-6-generic
Using config file '/etc/zipl.conf'
Building bootmap in '/boot/'
Building menu 'zipl-automatic-menu'
Adding #1: IPL section 'ubuntu' (default)
Preparing boot device: dasda (0200).
Done.
root@devac03:~# ls -latr /boot
total 48308
drwx------ 2 root root 16384 Dec 9 16:38 lost+found
-rw------- 1 root root 12989184 Dec 16 23:39 vmlinuz-4.3.0-5-generic
-rw------- 1 root root 2441677 Dec 16 23:39 System.map-4.3.0-5-generic
-rw-r--r-- 1 root root 63422 Dec 16 23:39 config-4.3.0-5-generic
-rw-r--r-- 1 root root 517933 Dec 16 23:39 abi-4.3.0-5-generic
lrwxrwxrwx 1 root root 26 Jan 6 16:23 initrd.img -> initrd.img-4.3.0-5-generic
lrwxrwxrwx 1 root root 23 Jan 6 16:24 vmlinuz -> vmlinuz-4.3.0-5-generic
-rw------- 1 root root 13026048 Jan 11 21:36 vmlinuz-4.3.0-6-generic
-rw------- 1 root root 2446124 Jan 11 21:36 System.map-4.3.0-6-generic
-rw-r--r-- 1 root root 63422 Jan 11 21:36 config-4.3.0-6-generic
-rw-r--r-- 1 root root 517933 Jan 11 21:36 abi-4.3.0-6-generic
-rw-r--r-- 1 root root 8602602 Jan 14 13:50 initrd.img-4.3.0-5-generic
drwxr-xr-x 22 root root 4096 Jan 14 13:51 ..
-rw-r--r-- 1 root root 8574889 Jan 14 13:51 initrd.img-4.3.0-6-generic
-rw------- 1 root root 69632 Jan 14 13:51 bootmap
drwxr-xr-x 3 root root 4096 Jan 14 13:51 .