Linux 中LVM 磁盘更换操作不当导致的错误及修复过程记录 今天备份服务器（8.77）在替换磁盘时，新磁盘的加入和应用路径更改都很正常，但在将原磁盘从vg 中删除时，由于操作失误，导致vg 无法认出，以下是问题过程和解决方法： 在执行pvremove -ff /dev/sdg 命令后，vg 出现异常，无论vgdisplay、lvdisplay 还是pvdisplay，都出现如下提示 [root@backupserver data]# vgdisplay Couldn't find device with uuid 'q2aKwA-0pim-QRr3-4DjN-gZg9-RNk1-eHKMvZ'. Couldn't find all physical volumes for volume group stuvg. Couldn't find device with uuid 'q2aKwA-0pim-QRr3-4DjN-gZg9-RNk1-eHKMvZ'. Couldn't find all physical volumes for volume group stuvg. Couldn't find device with uuid 'q2aKwA-0pim-QRr3-4DjN-gZg9-RNk1-eHKMvZ'. Couldn't find all physical volumes for volume group stuvg. Couldn't find device with uuid 'q2aKwA-0pim-QRr3-4DjN-gZg9-RNk1-eHKMvZ'. Couldn't find all physical volumes for volume group stuvg. Couldn't find device with uuid 'q2aKwA-0pim-QRr3-4DjN-gZg9-RNk1-eHKMvZ'. Couldn't find all physical volumes for volume group stuvg. Couldn't find device with uuid 'q2aKwA-0pim-QRr3-4DjN-gZg9-RNk1-eHKMvZ'. Couldn't find all physical volumes for volume group stuvg. Couldn't find device with uuid 'q2aKwA-0pim-QRr3-4DjN-gZg9-RNk1-eHKMvZ'. Couldn't find all physical volumes for volume group stuvg. Couldn't find device with uuid 'q2aKwA-0pim-QRr3-4DjN-gZg9-RNk1-eHKMvZ'. Couldn't find all physical volumes for volume group stuvg. Volume group "stuvg" not found 说明这个 pv 的信息还存在vg 中，但这是pv 没有了，vg 信息不完整，仔细分析 lvm 的工作原理，又在网上查找资料后，操作如下： [root@backupserver archive]# vgdisplay --partial -vvv #查看 vg 中的详细信息 如果此信息中其他 pv 和lv 的信息完整，则继续操作 Partial mode. Incomplete volume groups will be activated read-only. Processing: vgdisplay --partial -vvv O_DIRECT will be used Setting glob...
