我有一个全新安装的 Centos 7。我似乎无法192.168.254.105:/srv/nfsshare从 Centos 客户端自动挂载 NFS 共享。
但是，手动安装共享可以完美运行。
/etc/auto.master已被完全注释掉以简化问题，保留以下行：
/- /etc/auto.nfsshare
/etc/auto.nfsshare 包含以下行：
/tests/nfsshare -fstype=nfs,credentials=/etc/credentials.txt 192.168.254.105:/srv/nfsshare
/etc/credentials.txt包含：
user=user
password=password
预期的行为是，当 I 时ls -l /tests/nfsshare，我将看到我的文件服务器的/srv/nfsshare目录保存的一些文件。
它不是。相反，它什么也没显示。
sudo journalctl --unit=autofs.service的日志在启动时显示（启用调试）：
Nov 20 00:25:38 localhost.localdomain systemd[1]: Starting Automounts filesystems on demand...
Nov 20 00:25:38 localhost.localdomain automount[21204]: Starting automounter version 5.0.7-48.el7, master map auto.master
Nov 20 00:25:38 localhost.localdomain automount[21204]: using kernel protocol version 5.02
Nov 20 00:25:38 localhost.localdomain automount[21204]: lookup_nss_read_master: reading master files auto.master
Nov 20 00:25:38 localhost.localdomain automount[21204]: parse_init: parse(sun): init gathered global options: (null)
Nov 20 00:25:38 localhost.localdomain automount[21204]: spawn_mount: mtab link detected, passing -n to mount
Nov 20 00:25:38 localhost.localdomain automount[21204]: spawn_umount: mtab link detected, passing -n to mount
Nov 20 00:25:38 localhost.localdomain automount[21204]: lookup_read_master: lookup(file): read entry /-
Nov 20 00:25:38 localhost.localdomain automount[21204]: master_do_mount: mounting /-
Nov 20 00:25:38 localhost.localdomain automount[21204]: automount_path_to_fifo: fifo name /run/autofs.fifo--
Nov 20 00:25:38 localhost.localdomain automount[21204]: lookup_nss_read_map: reading map file /etc/auto.nfsshare
Nov 20 00:25:38 localhost.localdomain automount[21204]: parse_init: parse(sun): init gathered global options: (null)
Nov 20 00:25:38 localhost.localdomain automount[21204]: spawn_mount: mtab link detected, passing -n to mount
Nov 20 00:25:38 localhost.localdomain automount[21204]: spawn_umount: mtab link detected, passing -n to mount
Nov 20 00:25:38 localhost.localdomain automount[21204]: mounted direct on /tests/nfsshare with timeout 300, freq 75 seconds
Nov 20 00:25:38 localhost.localdomain automount[21204]: do_mount_autofs_direct: mounted trigger /tests/nfsshare
Nov 20 00:25:38 localhost.localdomain automount[21204]: st_ready: st_ready(): state = 0 path /-
Nov 20 00:25:38 localhost.localdomain systemd[1]: Started Automounts filesystems on demand.
当我尝试通过ls -l /tests/nfsshare强制安装 nfs 共享时，我的日志中会出现以下内容：
Nov 20 00:48:05 localhost.localdomain automount[22030]: handle_packet: type = 5
Nov 20 00:48:05 localhost.localdomain automount[22030]: handle_packet_missing_direct: token 21, name /tests/nfsshare, request pid 22057
Nov 20 00:48:05 localhost.localdomain automount[22030]: attempting to mount entry /tests/nfsshare
Nov 20 00:48:05 localhost.localdomain automount[22030]: lookup_mount: lookup(file): looking up /tests/nfsshare
Nov 20 00:48:05 localhost.localdomain automount[22030]: lookup_mount: lookup(file): /tests/nfsshare -> -fstype=nfs,credentials=/etc/credenti...fsshare
Nov 20 00:48:05 localhost.localdomain automount[22030]: parse_mount: parse(sun): expanded entry: -fstype=nfs,credentials=/etc/credentials.tx...fsshare
Nov 20 00:48:05 localhost.localdomain automount[22030]: parse_mount: parse(sun): gathered options: fstype=nfs,credentials=/etc/credentials.txt
Nov 20 00:48:05 localhost.localdomain automount[22030]: [90B blob data]
Nov 20 00:48:05 localhost.localdomain automount[22030]: dev_ioctl_send_fail: token = 21
Nov 20 00:48:05 localhost.localdomain automount[22030]: failed to mount /tests/nfsshare
Nov 20 00:48:05 localhost.localdomain automount[22030]: handle_packet: type = 5
Nov 20 00:48:05 localhost.localdomain automount[22030]: handle_packet_missing_direct: token 22, name /tests/nfsshare, request pid 22057
Nov 20 00:48:05 localhost.localdomain automount[22030]: dev_ioctl_send_fail: token = 22
此外，ls -l /tests/nfsshare实际上会产生错误：
ls: cannot access nfsshare/: No such file or directory
我该如何解决这个问题？如前所述，手动安装共享工作正常。