磁盘满了，由于使用的是lvm，想要扩容时发现无论lvs还是lvdisplay这类命令都会报同样的错：
[root@localhost qwang]# lvs Parse error at byte 1591 (line 100): unexpected token Error parsing metadata for VG fedora. Skipping volume group fedora Internal error: Volume Group fedora was not unlocked
各种搜索无果，翻出一个bug：https://bugzilla.redhat.com/show_bug.cgi?id=1119045
读到comment 30，试试
[root@localhost qwang]# uname -a Linux localhost.localdomain 54.197.182.68 jbossas.alias.medium 3.17.4-200.fc20.x86_64 #1 SMP Fri Nov 21 23:26:41 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux
查看下hostname
[root@localhost qwang]# cat /etc/hostname localhost.localdomain 54.197.182.68 jbossas.alias.medium
/etc/hostname里删去我自己加的一行54.197.182.68 jbossas.alias.medium
再查看下
[root@localhost qwang]# uname -a Linux localhost.localdomain 3.17.4-200.fc20.x86_64 #1 SMP Fri Nov 21 23:26:41 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux
试试
[root@localhost qwang]# lvs LV VG Attr LSize Pool Origin Data% Move Log Cpy%Sync Convert home fedora -wi-ao---- 180.34g root fedora -wi-ao---- 50.00g swap fedora -wi-ao---- 7.64g
问题解决！
Troubleshooting：lvm调整分区时“Error parsing metadata for VG fedora”的解决
原文：http://www.cnblogs.com/qyddbear/p/4277787.html