error getting authority: error initializing authority: could not connect: connection refused (g-io-error-quark, 1)

Debug

服务器出现问题，重启直接进入单用户模式 systemctl default 无效

http://www.linuxquestions.org/questions/sabayon-86/error-getting-authority-error-initializing-authority-could-not-connect-connection-refused-g-io-error-quark-39-a-4175580960/

查看分区信息

[root@ia10k ~]# fdisk -l
Disk /dev/sda: 1000.2 GB, 1000204886016 bytes, 1953525168 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk label type: dos
Disk identifier: 0x000be311
   Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *        2048     2099199     1048576   83  Linux
/dev/sda2         2099200   211814399   104857600   83  Linux
/dev/sda3       211814400   232785919    10485760   83  Linux
/dev/sda4       232785920  1953523711   860368896    5  Extended
/dev/sda5       232787968  1953523711   860367872   83  Linux
查看所有的blkid，显示各个block的uuid
[root@ia10k ~]# blkid /dev/sda*
/dev/sda: PTTYPE="dos" 
/dev/sda1: UUID="c8fddb0a-4e85-442e-b877-27885085e2ec" TYPE="xfs" 
/dev/sda2: UUID="1cb93790-4643-40b0-a15e-01f3d9766e17" TYPE="xfs" 
/dev/sda3: UUID="639558f8-f28b-45f1-8f95-8f568e01697b" TYPE="xfs" 
/dev/sda4: PTTYPE="dos" 

查看

[root@ia10k ~]# cat /etc/fstab 
#
# /etc/fstab
# Created by anaconda on Mon Mar  3 03:09:49 2014
#
# Accessible filesystems, by reference, are maintained under '/dev/disk'
# See man pages fstab(5), findfs(8), mount(8) and/or blkid(8) for more info
#
UUID=1cb93790-4643-40b0-a15e-01f3d9766e17 /                       xfs     defaults        0 0
UUID=c8fddb0a-4e85-442e-b877-27885085e2ec /boot                   xfs     defaults        0 0
UUID=d385c4f3-abc2-4437-9a02-83c17f25f821 /mnt/unuse              xfs     defaults        0 0
UUID=639558f8-f28b-45f1-8f95-8f568e01697b /opt                    xfs     defaults        0 0

两者对比，多了个

UUID=d385c4f3-abc2-4437-9a02-83c17f25f821 /mnt/unuse              xfs     defaults        0 0

先在/etc/fstab 下面注释掉多了的这个UUID 系统正常（为啥多了还不清楚）