Ubuntu 刪除多餘內核（grub）
Ubuntu 核心升級後，回保留原有內核版本。在啓動的時候會留下一大串啓動項，我的系統內核從22～28 看着比較煩。
如果新的內核穩定後，可以考慮刪除老的內核。
# dpkg –get-selections|grep linux
查看系統內存在的內核版本列表
lxx@lxx:~$ dpkg --get-selections | grep linux
libselinux1 install
libselinux1-dev install
linux-firmware install
linux-generic install
linux-headers-2.6.35-22 install
linux-headers-2.6.35-23 install
linux-headers-2.6.35-23-generic install
linux-headers-2.6.35-24 install
linux-headers-2.6.35-24-generic install
linux-headers-2.6.35-25 install
linux-headers-2.6.35-25-generic install
linux-headers-2.6.35-26 install
linux-headers-2.6.35-26-generic install
linux-headers-2.6.35-27 install
linux-headers-2.6.35-27-generic install
linux-headers-2.6.35-28 install
linux-headers-2.6.35-28-generic install
linux-headers-generic install
linux-image-2.6.35-22-generic deinstall
linux-image-2.6.35-23-generic deinstall
linux-image-2.6.35-24-generic deinstall
linux-image-2.6.35-25-generic deinstall
linux-image-2.6.35-26-generic deinstall
linux-image-2.6.35-27-generic install
linux-image-2.6.35-28-generic install
linux-image-generic install
linux-libc-dev install
linux-sound-base install
playonlinux deinstall
pptp-linux install
syslinux install
syslinux-common install
util-linux
以下是我的系統中存在的內核版本
--------------------------
linux-image-2.6.35-22-generic
deinstall--已經刪除掉
linux-image-2.6.35-23-generic
deinstall
linux-image-2.6.35-24-generic
deinstall
linux-image-2.6.35-25-generic
deinstall
linux-image-2.6.35-26-generic
deinstall
linux-image-2.6.35-27-generic
install--安裝
linux-image-2.6.35-28-generic
install
----我們可以刪除多餘的內核文件了
sudo apt-get remove linux-image-2.6.35-22-generic
刪除完成後，grub.cfg文件會自動配置好，不許要我們去改動grub.cfg文件了。
--uname -a 查看當前登錄的內核
