清理linux系统垃圾还有以下命令
sudo apt-get autoclean 清理旧版本的软件缓存sudo apt-get clean 清理所有软件缓存sudo apt-get autoremove 删除系统不再使用的孤立软件 ubuntu10.04升级至12.04均为root用户
1.清空 /etc/apt/sources.list
root@jxnc3:~# echo ''>/etc/apt/sources.list2.复制163的源进入 /etc/apt/sources.list
root@jxnc3:~# vim /etc/apt/sources.listdeb http://mirrors.163.com/ubuntu/ precise main restricteddeb-src http://mirrors.163.com/ubuntu/ precise main restricteddeb http://mirrors.163.com/ubuntu/ precise-updates main restricteddeb-src http://mirrors.163.com/ubuntu/ precise-updates main restricteddeb http://mirrors.163.com/ubuntu/ precise universedeb-src http://mirrors.163.com/ubuntu/ precise universedeb http://mirrors.163.com/ubuntu/ precise-updates universedeb-src http://mirrors.163.com/ubuntu/ precise-updates universedeb http://mirrors.163.com/ubuntu/ precise multiversedeb-src http://mirrors.163.com/ubuntu/ precise multiversedeb http://mirrors.163.com/ubuntu/ precise-updates multiversedeb-src http://mirrors.163.com/ubuntu/ precise-updates multiversedeb http://mirrors.163.com/ubuntu/ precise-backports main restricted universe multiversedeb-src http://mirrors.163.com/ubuntu/ precise-backports main restricted universe multiversedeb http://mirrors.163.com/ubuntu/ precise-security main restricteddeb-src http://mirrors.163.com/ubuntu/ precise-security main restricteddeb http://mirrors.163.com/ubuntu/ precise-security universedeb-src http://mirrors.163.com/ubuntu/ precise-security universedeb http://mirrors.163.com/ubuntu/ precise-security multiversedeb-src http://mirrors.163.com/ubuntu/ precise-security multiversedeb http://extras.ubuntu.com/ubuntu precise maindeb-src http://extras.ubuntu.com/ubuntu precise main3.清理缓存
root@jxnc3:~# apt-get cleanroot@jxnc3:~# cd /var/lib/aptroot@jxnc3:/var/lib/apt# mv lists lists.oldroot@jxnc3:/var/lib/apt# mkdir -p lists/partialroot@jxnc3:/var/lib/apt# apt-get cleanroot@jxnc3:/var/lib/apt# cd4.执行 apt-get update
5.针对出现如图:
6.升级更新
root@jxnc3:~# do-release-upgrade -d
针对出现如下错误
终止 enter x
选择 yes enter
root@jxnc3:~# cat /etc/issue
Ubuntu 12.04.5 LTS n l
升级成功!
ubuntu12.04升级至14.04root用户
1.安装更新器
apt-get install update-manager-core2.更新
do-release-upgrade -d
自动重启 reboot
3.再次ssh连接查看
appadmin@jxnc3:~$ cat /etc/issueUbuntu 14.04.3 LTS n l升级成功!
升级成功后修改salt
Ubuntu14.04升级到Ubuntu16.041、查看Ubuntu 版本指令:
lsb_release -a2、执行更新命令
apt-get update && apt-get dist-upgrade3、进行升级
do-release-upgrade若提示没有找到新的版本,你需要改动apt源
软件配置,一般选择“Yes”完成升级
4、重启服务器
reboot Ubuntu16.04升级到Ubuntu18.04查看系统版本
root@ubuntu:~# cat /etc/issueUbuntu 16.04.6 LTS n l
Ubuntu 从 16.04 升级 18.04 : https://blog.csdn.net/u010953692/article/details/106927651?ops_request_misc=%257B%2522request%255Fid%2522%253A%2522159395070319725211900643%2522%252C%2522scm%2522%253A%252220140713.130102334.pc%255Fall.%2522%257D&request_id=159395070319725211900643&biz_id=0&utm_medium=distribute.pc_search_result.none-task-blog-2allfirst_rank_ecpm_v3~pc_rank_v2-1-106927651.first_rank_ecpm_v3_pc_rank_v2&utm_term=%23+Ubuntu16.04%E5%8D%87%E7%BA%A7%E5%88%B0Ubuntu18.04
Ubuntu 16.04 升级到 18.04 LTS 笔记 :https://苗条的火龙果.moe/post-298.html
在升级之前,先更新当前的16.04至最新状态。建议升级之前更新/升级所有已安装的软件包。
首先更新APT源和软件包至最新 sudo apt update && sudo apt dist-upgrade && sudo apt autoremove 安装和配置Ubuntu update manager更新完组件后,运行以下命令安装update-manager-core
sudo apt install update-manager-core
打开update-manager配置文件
确保设置为Prompt=lts
出现升级提示时,全部选择y
等待所有的软件包下载…安装…到重启…
当所有操作执行完毕后,系统就升级到最新的Ubuntu 18.04 LTS版本了。
1、首先要更新Ubuntu16.04。打开终端,输入:sudo apt-get update
2、输入:sudo apt-get dist-upgrade
3、需要下载解压授权,输上Y,确认执行。
4、输入:sudo apt-get autoremove
执行结果
5、输上:sudo apt-get install update-manager-core
6、输入命令:sudo do-release-upgrade -d。出现升级提示时,输上y确认执行即可。
参考链接 :
Ubuntu 16.04 升级到 18.04 LTS 笔记 https://苗条的火龙果.moe/post-298.html