从快照创build了一个EBS卷,但无法安装它?

fdisk -l显示音量,看起来像是连接,但是当我按照这些步骤

 echo "/dev/xvdg /vol2 xfs noatime 0 0" | sudo tee -a /etc/fstab sudo mkdir /vol2 sudo mount /vol2 

我得到错误

  mount: wrong fs type, bad option, bad superblock on /dev/xvdg, missing codepage or helper program, or other error In some cases useful info is found in syslog - try dmesg | tail or so 

当我检查dmesg我看到

 XFS: Filesystem xvdg has duplicate UUID - can't mount 

我该怎么办?

挂载没有UUID(短期解决scheme):

 mount -o nouuid DEVICE MOUNT_POINT 

或者为设备生成一个新的UUID,然后正常挂载:

 xfs_admin -U generate DEVICE 

(首先Google的结果, XFS文件系统有重复的UUID问题 )