我已经在我的系统上安装了多次 arch，一切都工作正常，但自从上次安装以来，我一直在关机或重新启动过程中看到Failed unmounting /home.消息Failed unmounting /run/user/1000.：我在拱门论坛上搜索了类似的帖子，尽管就这个主题进行了多次对话，但没有找到任何解决这个问题的方法。
这是journalctl -p 0..3 -xn输出：
-- Logs begin at Sun 2015-08-02 15:24:27 IST, end at Tue 2015-08-04 21:29:57 IST. --
Aug 04 17:26:59 lenovo systemd-logind[315]: Failed to abandon session scope: Transport endpoint is not connected
Aug 04 17:26:59 lenovo systemd[1]: Failed unmounting /home.
-- Subject: Unit home.mount has finished shutting down
-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
--
-- Unit home.mount has finished shutting down.
Aug 04 17:26:59 lenovo systemd[1]: Failed unmounting /run/user/1000.
-- Subject: Unit run-user-1000.mount has finished shutting down
-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
--
-- Unit run-user-1000.mount has finished shutting down.
-- Reboot --
Aug 04 19:34:30 lenovo dhcpcd[320]: enp1s0: ipv6nd_sendrsprobe: sendmsg: Cannot assign requested address
Aug 04 19:34:40 lenovo dhcpcd[320]: enp1s0: DHCP lease expired
Aug 04 19:55:31 lenovo systemd-logind[339]: Failed to abandon session scope: Transport endpoint is not connected
Aug 04 19:55:31 lenovo systemd[1]: Failed unmounting /home.
-- Subject: Unit home.mount has finished shutting down
-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
--
-- Unit home.mount has finished shutting down.
Aug 04 19:55:31 lenovo systemd[1]: Failed unmounting /run/user/1000.
-- Subject: Unit run-user-1000.mount has finished shutting down
-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
--
-- Unit run-user-1000.mount has finished shutting down.
-- Reboot --
Aug 04 21:25:48 lenovo dhcpcd[309]: enp1s0: DHCP lease expired
Aug 04 21:26:46 lenovo dhcpcd[309]: enp1s0: DHCP lease expired
这是cat /etc/fstab输出：
#
# /etc/fstab: static file system information
#
# <file system> <dir> <type> <options> <dump> <pass>
# /dev/sda3
UUID=d98988d2-4106-4f72-bc14-492d1acbb4fb / ext4 rw,relatime,data=ordered 0 1
# /dev/sda1
UUID=166C-1970 /boot vfat rw,relatime,fmask=0022,dmask=0022,codepage=437,iocharset=iso8859-1,shortname=mixed,errors=remount-ro 0 2
# /dev/sda4
UUID=75c1fdba-3038-451e-ba11-adeb18ac99dc /home ext4 rw,relatime,data=ordered 0 2
# /dev/sda2
UUID=89adf58d-e21e-4d12-8bd6-2d44314daa55 none swap defaults 0 0
这是lsblk输出：
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sda 8:0 0 465.8G 0 disk
├─sda1 8:1 0 1G 0 part
├─sda2 8:2 0 4G 0 part [SWAP]
├─sda3 8:3 0 30G 0 part /
└─sda4 8:4 0 430.8G 0 part /home
sr0 11:0 1 1024M 0 rom
我不知道这些消息意味着什么，否则我肯定会更多地搜索它。谢谢。