Cara Menghapus Kernel Lama di Grub Ubuntu

Ada dua cara untuk menghapus kernel lama di grub ubuntu (se-tahu saya :D):

1. Via Synaptic Package Manager
Akses Synaptic Manager:
System --> Administration --> Synaptic Package Manager
Search dengan keyword 'kernel', lalu hapus kernel lama yg anda inginkan. Tapi, penting untuk diingat!, jangan salah hapus kernel yang sedang anda gunakan.. hehehe..

Untuk mengetahui kernel yang sedang digunakan, ketikkan perintah:
# uname -a 

Contoh:

root@spydeeyk-r00m:~# uname -a
Linux spydeeyk-r00m 2.6.32-30-generic #59-Ubuntu SMP Tue Mar 1 21:30:21 UTC 2011 i686 GNU/Linux

Nah, pada contoh diatas kernel yang saya gunakan 2.6.32-30-generic.

Oh ya, setelah kernel lama dihapus alias diremove via synaptic package manager lakukan pula perintah:
# update-grub2

2. Via Command Terminal
Pertama kita cari tahu dahulu kernel-kernel yang terinstall di system kita dengan perintah:
root@spydeeyk-r00m:~# aptitude search linux-image-2.6 | grep "i "


Contoh:

root@spydeeyk-r00m:~# aptitude search linux-image-2.6 | grep "i "
i   linux-image-2.6.32-21-generic   - Linux kernel image for version 2.6.32 on x
i   linux-image-2.6.32-22-generic   - Linux kernel image for version 2.6.32 on x
i   linux-image-2.6.32-24-generic   - Linux kernel image for version 2.6.32 on x
i   linux-image-2.6.32-29-generic   - Linux kernel image for version 2.6.32 on x
i   linux-image-2.6.32-30-generic   - Linux kernel image for version 2.6.32 on x

Setelah mengetahui kernel-kernel yang terinstall, sekarang kita bisa remove kernel yang kita inginkan (ingat jangan remove kernel yang sedang dipakai, ok? :D )

Contoh:

root@spydeeyk-r00m:~# aptitude purge linux-image-2.6.32-21-generic 

Reading package lists... Done

Building dependency tree       

Reading state information... Done

Reading extended state information      

Initializing package states... Done

The following packages will be REMOVED:

  linux-image-2.6.32-21-generic{p} 

0 packages upgraded, 0 newly installed, 1 to remove and 0 not upgraded.

Need to get 0B of archives. After unpacking 96.9MB will be freed.

Do you want to continue? [Y/n/?] y

Writing extended state information... Done

(Reading database ... 311174 files and directories currently installed.)

Removing linux-image-2.6.32-21-generic ...

Examining /etc/kernel/prerm.d.

run-parts: executing /etc/kernel/prerm.d/dkms 2.6.32-21-generic /boot/vmlinuz-2.6.32-21-generic

Running postrm hook script /usr/sbin/update-grub.

Generating grub.cfg ...

Found linux image: /boot/vmlinuz-2.6.32-30-generic

Found initrd image: /boot/initrd.img-2.6.32-30-generic

Found linux image: /boot/vmlinuz-2.6.32-29-generic

Found initrd image: /boot/initrd.img-2.6.32-29-generic

Found linux image: /boot/vmlinuz-2.6.32-24-generic

Found initrd image: /boot/initrd.img-2.6.32-24-generic

Found linux image: /boot/vmlinuz-2.6.32-22-generic

Found initrd image: /boot/initrd.img-2.6.32-22-generic

Found Windows 7 (loader) on /dev/sda1

done

Purging configuration files for linux-image-2.6.32-21-generic ...

Running postrm hook script /usr/sbin/update-grub.

Generating grub.cfg ...

Found linux image: /boot/vmlinuz-2.6.32-30-generic

Found initrd image: /boot/initrd.img-2.6.32-30-generic

Found linux image: /boot/vmlinuz-2.6.32-29-generic

Found initrd image: /boot/initrd.img-2.6.32-29-generic

Found linux image: /boot/vmlinuz-2.6.32-24-generic

Found initrd image: /boot/initrd.img-2.6.32-24-generic

Found linux image: /boot/vmlinuz-2.6.32-22-generic

Found initrd image: /boot/initrd.img-2.6.32-22-generic

Found Windows 7 (loader) on /dev/sda1

done

Reading package lists... Done             

Building dependency tree       

Reading state information... Done

Reading extended state information      

Initializing package states... Done

Writing extended state information... Done

root@spydeeyk-r00m:~#

That's it.. :)

Bagi saya ada baiknya disisakan 2 kernel.. kernel yang sedang dipakai dan sebelumnya, buat jaga-jaga aja.. :D