https://blog.ffff65535.com/tags/%E5%88%86%E5%8C%BA/Recent content in 分区 on ffff65535Hugozh-cnThu, 13 Apr 2023 00:00:00 +0800https://blog.ffff65535.com/posts/2023/04/13/linux-adjusts-the-lvm-partition/Thu, 13 Apr 2023 00:00:00 +0800https://blog.ffff65535.com/posts/2023/04/13/linux-adjusts-the-lvm-partition/<h1 id="lv分区调整">lv分区调整</h1> <div class="highlight"><pre tabindex="0" style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4;"><code class="language-shell" data-lang="shell"><span style="display:flex;"><span>df -h </span></span><span style="display:flex;"><span>umount /home </span></span><span style="display:flex;"><span>e2fsck -f /dev/mapper/debian--vg-home </span></span><span style="display:flex;"><span>resize2fs /dev/mapper/debian--vg-home 5G </span></span><span style="display:flex;"><span>lvreduce -L 5G /dev/mapper/debian--vg-home </span></span><span style="display:flex;"><span>mount /home </span></span><span style="display:flex;"><span>df -h </span></span></code></pre></div><div class="highlight"><pre tabindex="0" style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4;"><code class="language-shell" data-lang="shell"><span style="display:flex;"><span>lvextend -L 5G /dev/mapper/debian--vg-home <span style="color:#75715e">#增大至5G</span> </span></span><span style="display:flex;"><span>lvextend -L +5G /dev/mapper/debian--vg-home <span style="color:#75715e">#增加5G</span> </span></span><span style="display:flex;"><span>lvreduce -L 5G /dev/mapper/debian--vg-home <span style="color:#75715e">#减小至5G</span> </span></span><span style="display:flex;"><span>lvreduce -L -5G /dev/mapper/debian--vg-home <span style="color:#75715e">#减小5G</span> </span></span></code></pre></div><h1 id="创建lv分区">创建lv分区</h1> <div class="highlight"><pre tabindex="0" style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4;"><code class="language-shell" data-lang="shell"><span style="display:flex;"><span>lvcreate -L 200G VG名字 -n LV名字 </span></span><span style="display:flex;"><span>例：lvcreate -L 200G vg -n system </span></span></code></pre></div><h1 id="lvm创建swap">lvm创建swap</h1> <pre tabindex="0"><code class="language-agsl" data-lang="agsl"> # 创建lv [-C y]参数 该参数用来指定逻辑卷的空间分配是连续的 lvcreate -C y -L 4G debian-vg -n swap_1 # 格式化 root@debian:~# mkswap /dev/debian-vg/swap_1 # vim /etc/fstab 添加 /dev/mapper/debian--vg-swap_1 swap swap sw 0 0 swapon -va </code></pre>