Monday, November 5, 2018

14.04 - Remove Old Kernel to free disk space

My system has old Ubuntu kernels but I am unable to remove them. How can I remove my old kernel to free my hard disk. Here are some outputs of commands I tried:



$ sudo apt-get remove --purge linux-image-3.13.0-29-generic

Reading package lists... Done
Building dependency tree
Reading state information... Done
The following packages will be REMOVED:
linux-image-3.13.0-29-generic* linux-image-extra-3.13.0-29-generic*
0 upgraded, 0 newly installed, 2 to remove and 265 not upgraded.
After this operation, 193 MB disk space will be freed.
Do you want to continue? [Y/n] y
(Reading database ... 216178 files and directories currently installed.)
Removing linux-image-extra-3.13.0-29-generic (3.13.0-29.53) ...

Examining /etc/kernel/postrm.d .
run-parts: executing /etc/kernel/postrm.d/initramfs-tools 3.13.0-29-generic /boot/vmlinuz-3.13.0-29-generic
update-initramfs: Deleting /boot/initrd.img-3.13.0-29-generic
run-parts: executing /etc/kernel/postrm.d/zz-update-grub 3.13.0-29-generic /boot/vmlinuz-3.13.0-29-generic
Generating grub configuration file ...
Found linux image: /boot/vmlinuz-3.13.0-30-generic
Found initrd image: /boot/initrd.img-3.13.0-30-generic
Found linux image: /boot/vmlinuz-3.13.0-29-generic
Found linux image: /boot/vmlinuz-2.6.38-16-generic
Found initrd image: /boot/initrd.img-2.6.38-16-generic

Found linux image: /boot/vmlinuz-2.6.38-15-generic
Found initrd image: /boot/initrd.img-2.6.38-15-generic
Found linux image: /boot/vmlinuz-2.6.38-13-generic
Found initrd image: /boot/initrd.img-2.6.38-13-generic
Found linux image: /boot/vmlinuz-2.6.38-12-generic
Found initrd image: /boot/initrd.img-2.6.38-12-generic
Found linux image: /boot/vmlinuz-2.6.38-11-generic
Found initrd image: /boot/initrd.img-2.6.38-11-generic
Found linux image: /boot/vmlinuz-2.6.38-10-generic
Found initrd image: /boot/initrd.img-2.6.38-10-generic

Found linux image: /boot/vmlinuz-2.6.38-8-generic
Found initrd image: /boot/initrd.img-2.6.38-8-generic
Found memtest86+ image: /boot/memtest86+.elf
Found memtest86+ image: /boot/memtest86+.bin
Found Windows 8 (loader) on /dev/sda1
done
The link /initrd.img.old is a damaged link
Removing symbolic link initrd.img.old
you may need to re-run your boot loader[grub]
Purging configuration files for linux-image-extra-3.13.0-29-generic (3.13.0-29.53) ...

Examining /etc/kernel/postrm.d .
run-parts: executing /etc/kernel/postrm.d/initramfs-tools 3.13.0-29-generic /boot/vmlinuz-3.13.0-29-generic
run-parts: executing /etc/kernel/postrm.d/zz-update-grub 3.13.0-29-generic /boot/vmlinuz-3.13.0-29-generic
Removing linux-image-3.13.0-29-generic (3.13.0-29.53) ...
Examining /etc/kernel/prerm.d.
run-parts: executing /etc/kernel/prerm.d/dkms 3.13.0-29-generic /boot/vmlinuz-3.13.0-29-generic
dkms: removing: bcmwl 6.30.223.141+bdcom (3.13.0-29-generic) (x86_64)

-------- Uninstall Beginning --------
Module: bcmwl

Version: 6.30.223.141+bdcom
Kernel: 3.13.0-29-generic (x86_64)
-------------------------------------

Status: Before uninstall, this module version was ACTIVE on this kernel.

wl.ko:
- Uninstallation
- Deleting from: /lib/modules/3.13.0-29-generic/updates/dkms/
- Original module

- No original module was found for this module on this kernel.
- Use the dkms install command to reinstall any previous module version.


Also,



$ depmod
DKMS: uninstall completed.
Examining /etc/kernel/postrm.d .
run-parts: executing /etc/kernel/postrm.d/initramfs-tools 3.13.0-29-generic /boot/vmlinuz-3.13.0-29-generic

update-initramfs: Deleting /boot/initrd.img-3.13.0-29-generic
run-parts: executing /etc/kernel/postrm.d/zz-update-grub 3.13.0-29-generic /boot/vmlinuz-3.13.0-29-generic
Generating grub configuration file ...
Found linux image: /boot/vmlinuz-3.13.0-30-generic
Found initrd image: /boot/initrd.img-3.13.0-30-generic
Found linux image: /boot/vmlinuz-2.6.38-16-generic
Found initrd image: /boot/initrd.img-2.6.38-16-generic
Found linux image: /boot/vmlinuz-2.6.38-15-generic
Found initrd image: /boot/initrd.img-2.6.38-15-generic
Found linux image: /boot/vmlinuz-2.6.38-13-generic

Found initrd image: /boot/initrd.img-2.6.38-13-generic
Found linux image: /boot/vmlinuz-2.6.38-12-generic
Found initrd image: /boot/initrd.img-2.6.38-12-generic
Found linux image: /boot/vmlinuz-2.6.38-11-generic
Found initrd image: /boot/initrd.img-2.6.38-11-generic
Found linux image: /boot/vmlinuz-2.6.38-10-generic
Found initrd image: /boot/initrd.img-2.6.38-10-generic
Found linux image: /boot/vmlinuz-2.6.38-8-generic
Found initrd image: /boot/initrd.img-2.6.38-8-generic
Found memtest86+ image: /boot/memtest86+.elf

Found memtest86+ image: /boot/memtest86+.bin
Found Windows 8 (loader) on /dev/sda1
done
The link /vmlinuz.old is a damaged link
Removing symbolic link vmlinuz.old
you may need to re-run your boot loader[grub]
Purging configuration files for linux-image-3.13.0-29-generic (3.13.0-29.53) ...
Examining /etc/kernel/postrm.d .
run-parts: executing /etc/kernel/postrm.d/initramfs-tools 3.13.0-29-generic /boot/vmlinuz-3.13.0-29-generic
run-parts: executing /etc/kernel/postrm.d/zz-update-grub 3.13.0-29-generic /boot/vmlinuz-3.13.0-29-generic



I tried



abhay@abhay-HP-Pavilion-dv5-Notebook-PC:~$ df -h
Filesystem Size Used Avail Use% Mounted on
/dev/sda7 7.7G 6.6G 776M 90% /
none 4.0K 0 4.0K 0% /sys/fs/cgroup
udev 1.5G 12K 1.5G 1% /dev
tmpfs 295M 1.5M 293M 1% /run

none 5.0M 0 5.0M 0% /run/lock
none 1.5G 156K 1.5G 1% /run/shm
none 100M 40K 100M 1% /run/user


Then on retrying,



abhay@abhay-HP-Pavilion-dv5-Notebook-PC:~$ sudo apt-get remove --purge linux-image-2.6.38-8-generic
Reading package lists... Done
Building dependency tree

Reading state information... Done
E: Unable to locate package linux-image-2.6.38-8-generic
E: Couldn't find any package by regex 'linux-image-2.6.38-8-generic'


Also,



abhay@abhay-HP-Pavilion-dv5-Notebook-PC:~$ sudo apt-get remove --purge linux-image-2.6.38-10-generic
Reading package lists... Done
Building dependency tree

Reading state information... Done
E: Unable to locate package linux-image-2.6.38-10-generic
E: Couldn't find any package by regex 'linux-image-2.6.38-10-generic'


And,



abhay@abhay-HP-Pavilion-dv5-Notebook-PC:~$ du -sh /var/tmp
4.0K /var/tmp

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