☰

centos7重新分区问题

tag-icon • tag-icon centos
centos7重新分区问题

我需要给centos-rootfrom更多空间centos-home。

我卸载了/home，之后

lvremove /dev/mapper/centos-home

然后，

lvextend -L 500G /dev/mapper/centos-root

和最终的

mount /home

问题是现在ls来自的命令/home给了我：

ls: cannot open directory .: Input/output error.

我已经尝试过xfs_repair /dev/mapper/centos-home，但结果是xfs_repair: cannot open /dev/mapper/centos-home: Device or resource busy

任何其他想法。我不想重装操作系统。

多谢！

答案1

检查文件系统：

e2fsck -f /dev/mapper/vg_livecd-lv_home

最好做resize/home 而不是remove

按照步骤：

Step:1 Umount the file system
# umount /home/

Step:2 check the file system for Errors using e2fsck command.
# e2fsck -f /dev/mapper/vg_livecd-lv_home

Step:3 Reduce or Shrink the size of /home to required size.
# resize2fs /dev/mapper/vg_livecd-lv_home 50G

Step:4 Reduce the size using lvreduce command.
# lvreduce -L 50G /dev/mapper/vg_livecd-lv_home 

Step:5 Check the filesystem before mount
# e2fsck -f /dev/mapper/vg_livecd-lv_home

Step:6 Mount the file system and verify its size.
# mount /home

-> 增加 LVM 的步骤：

Step1: Check the free available space in the Volume group
#  vgdisplay < Volume-Group-Name>

Step2: Increase the size using Lvextend command
# lvextend -L +120G /dev/mapper/vg_livecd-lv_root

Step:3 Run the resize2fs command
# resize2fs /dev/mapper/vg_livecd-lv_root 

Step:4 Verify Size
# df -Th

相关内容