首先请用uname -a看下自己当前启动的是哪个内核。
~$uname-a Linux expired 2.6.35-28-generic #49-Ubuntu SMP Tue Mar 1 14:39:03 UTC 2011 x86_64 GNU/Linux
从中可以看到我此刻启动的是2.6.35-28-generic,再用dpkg命令看下你的机器上都有哪些内核文件。
~$dpkg--get-selections|grep linux-image linux-image-2.6.35-22-generic deinstall linux-image-2.6.35-24-generic deinstall linux-image-2.6.35-25-generic install linux-image-2.6.35-27-generic install linux-image-2.6.35-28-generic install linux-image-generic install
不少,理论上除正在用的都可以删除,但刚升级的东西可能不稳定,为保险起见,保留1-2个之前版本吧。
运行apt-get remove命令卸载不需要的内核。
~$sudo apt-get remove linux-image-2.6.35-25-generic The following packages will be REMOVED: linux-image-2.6.35-25-generic 0 upgraded, 0 newly installed, 1 to remove and 0 not upgraded. After this operation, 139MB disk space will be freed. Do you want to continue [Y/n]? y
出现以上提示问是否继续,按y或者直接回车继续。完成后会有如下提示:
DKMS: uninstall Completed. Examining /etc/kernel/postrm.d . run-parts: executing /etc/kernel/postrm.d/initramfs-tools 2.6.35-25-generic /boot/vmlinuz-2.6.35-25-generic run-parts: executing /etc/kernel/postrm.d/zz-update-grub 2.6.35-25-generic /boot/vmlinuz-2.6.35-25-generic Generating grub.cfg ... Found linux image: /boot/vmlinuz-2.6.35-28-generic Found initrd image: /boot/initrd.img-2.6.35-28-generic Found linux image: /boot/vmlinuz-2.6.35-27-generic Found initrd image: /boot/initrd.img-2.6.35-27-generic Found memtest86+ image: /memtest86+.bin Found Windows 7 (loader) on /dev/sda1 Found Windows Vista (loader) on /dev/sda4 done
现在的ubuntu会自动重建启动菜单grub.cfg,所以就一步到位了。卸载完后可以用df命令看下boot分区的空间使用情况。
~$df Filesystem 1K-blocks Used Available Use% Mounted on /dev/sda9 19223252 9429624 8817144 52% / /dev/sda7 93207 53279 35116 61% /boot
ok,已经腾出35m空间了,现在可以运行sudo apt-get upgrade升级了。
再用dpkg看下还剩什么东西。
~$dpkg--get-selections|grep linux-image linux-image-2.6.35-25-generic deinstall linux-image-2.6.35-27-generic install linux-image-2.6.35-28-generic install linux-image-generic install linux-image-2.6.35-25-generic 显示deinstall //表示已经删除,也许你觉得留着这个也不好看,那就试试下面的命令:
~$sudodpkg-P linux-image-2.6.35-25-generic (Reading database ... 286964 files and directories currently installed.) Removing linux-image-2.6.35-25-generic ... Purging configuration files for linux-image-2.6.35-25-generic ... Examining /etc/kernel/postrm.d . run -parts: executing /etc/kernel/postrm.d/initramfs-tools 2.6.35-25-generic /boot/vmlinuz-2.6.35-25-generic run-parts: executing /etc/kernel/postrm.d/zz-update-grub 2.6.35-25-generic /boot/vmlinuz-2.6.35-25-generic
呵呵,其实打一开始就可以用purge这个参数一步到位地卸载,即:
~$sudoapt-get purge linux-image-3.2.0-26-generic Reading package lists... Done Building dependency tree Reading state information... Done The following packages will be REMOVED: linux-image-3.2.0-26-generic* 0 upgraded, 0 newly installed, 1 to remove and 0 not upgraded. After this operation, 0 B of additional disk space will be used. Do you want to continue [Y/n]? y (Reading database ... 286964 files and directories currently installed.) Removing linux-image-3.2.0-26-generic ... Purging configuration files for linux-image-3.2.0-26-generic ... Examining /etc/kernel/postrm.d . run-parts: executing /etc/kernel/postrm.d/initramfs-tools 3.2.0-26-generic /boot/vmlinuz-3.2.0-26-generic run-parts: executing /etc/kernel/postrm.d/zz-update-grub 3.2.0-26-generic /boot/vmlinuz-3.2.0-26-generic
因为之前已经remove过了,所以只留下个配置在数据库记录中,再purge时无空间释放。
0 B of additional disk space will be used
再次看下运行后的结果
~$dpkg--get-selections|grep linux-image linux-image-3.2.0-32-generic install linux-image-generic install
~$dpkg-l|grep linux-image ii linux-image-3.2.0-32-generic 3.2.0-32.51 Linux kernel image for version 3.2.0 on 64 bit x86 SMP ii linux-image-generic 3.2.0.32.35 Generic Linux kernel image
ok,刚才的残留已经删除了。

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感谢分享,谢谢站长!!@天天下载
求同型号
能别用城通吗,缺钱缺这样啊
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