CIFS 安装问题，错误 cifs_mount 失败，返回代码 = -2

Question

我的 CIFS 安装可以正常工作，但已损坏。它仍然安装sudo mount -a，但不会在启动时安装。CIFS 共享托管在树莓派 4 上的 openmediavault 5 上。我在 OMV 日志中没有看到任何错误。

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我的 fstab 条目如下所示：

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//192.168.1.97/sharedrive /media/Nas cifs credentials=/home/brad/.smbcredentials,vers=3,_netdev,iocharset=utf8,auto,forceuid,forcegid,uid=1000,gid=5000,file_mode=0777,dir_mode=0777 0 0\n

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DMESG 输出如下所示：

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CIFS: Attempting to mount //192.168.1.97/sharedrive\nCIFS VFS: Error connecting to socket. Aborting operation.\nCIFS VFS: cifs_mount failed w/return code = -2\n

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JOURNALLCTL 输出如下所示：

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systemd[1]: media-Nas.mount: Mount process exited, code=exited, status=32/n/a\nsystemd[1]: media-Nas.mount: Failed with result 'exit-code'.\nsystemd[1]: Failed to mount Mount CIFS Share.\n

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任何帮助将不胜感激。谢谢！

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编辑：

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的输出systemctl status NetworkManager-wait-online.service

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systemctl status NetworkManager-wait-online.service\n\xe2\x97\x8f NetworkManager-wait-online.service - Network Manager Wait Online\n     Loaded: loaded (/lib/systemd/system/NetworkManager-wait-online.service; enabled; vendor preset: enabled)\n     Active: active (exited) since Fri 2021-01-29 17:42:32 EST; 43min ago\n       Docs: man:nm-online(1)\n    Process: 806 ExecStart=/usr/bin/nm-online -s -q --timeout=30 (code=exited, status=0/SUCCESS)\n   Main PID: 806 (code=exited, status=0/SUCCESS)\n\nJan 29 17:42:26 HP-Laptop systemd[1]: Starting Network Manager Wait Online...\nJan 29 17:42:32 HP-Laptop systemd[1]: Finished Network Manager Wait Online.\n

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的输出systemd-networkd-wait-online

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systemctl status systemd-networkd-wait-online\n\xe2\x97\x8f systemd-networkd-wait-online.service - Wait for Network to be Configured\n     Loaded: loaded (/lib/systemd/system/systemd-networkd-wait-online.service; disabled; vendor preset: enabled)\n     Active: inactive (dead)\n       Docs: man:systemd-networkd-wait-online.service(8)\n

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编辑2：

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systemctl status systemd-networkd-wait-online\n\xe2\x97\x8f systemd-networkd-wait-online.service - Wait for Network to be Configured\n     Loaded: loaded (/lib/systemd/system/systemd-networkd-wait-online.service; enabled; vendor preset: enabled)\n     Active: active (exited) since Fri 2021-01-29 18:42:00 EST; 3min 54s ago\n       Docs: man:systemd-networkd-wait-online.service(8)\n    Process: 444 ExecStart=/lib/systemd/systemd-networkd-wait-online (code=exited, status=0/SUCCESS)\n   Main PID: 444 (code=exited, status=0/SUCCESS)\n\nJan 29 18:42:00 HP-Laptop systemd[1]: Starting Wait for Network to be Configured...\nJan 29 18:42:00 HP-Laptop systemd[1]: Finished Wait for Network to be Configured.\n

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编辑3：

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的输出systemctl status networkd-dispatcher.service systemd-networkd.service

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\xe2\x97\x8f networkd-dispatcher.service - Dispatcher daemon for systemd-networkd\n     Loaded: loaded (/lib/systemd/system/networkd-dispatcher.service; enabled; vendor preset: enabled)\n     Active: active (running) since Fri 2021-01-29 19:19:51 EST; 1min 20s ago\n   Main PID: 747 (networkd-dispat)\n      Tasks: 1 (limit: 9072)\n     Memory: 19.7M\n     CGroup: /system.slice/networkd-dispatcher.service\n             \xe2\x94\x94\xe2\x94\x80747 /usr/bin/python3 /usr/bin/networkd-dispatcher --run-startup-triggers\n\nJan 29 19:19:51 HP-Laptop systemd[1]: Starting Dispatcher daemon for systemd-networkd...\nJan 29 19:19:51 HP-Laptop systemd[1]: Started Dispatcher daemon for systemd-networkd.\nJan 29 19:19:57 HP-Laptop networkd-dispatcher[747]: WARNING:Unknown index 3 seen, reloading interface list\nJan 29 19:20:00 HP-Laptop networkd-dispatcher[747]: WARNING:Unknown index 5 seen, reloading interface list\nJan 29 19:20:00 HP-Laptop networkd-dispatcher[747]: WARNING:Unknown index 6 seen, reloading interface list\n\n\xe2\x97\x8f systemd-networkd.service - Network Service\n     Loaded: loaded (/lib/systemd/system/systemd-networkd.service; enabled; vendor preset: enabled)\n     Active: active (running) since Fri 2021-01-29 19:19:49 EST; 1min 22s ago\nTriggeredBy: \xe2\x97\x8f systemd-networkd.socket\n       Docs: man:systemd-networkd.service(8)\n   Main PID: 431 (systemd-network)\n     Status: "Processing requests..."\n      Tasks: 1 (limit: 9072)\n     Memory: 4.1M\n     CGroup: /system.slice/systemd-networkd.service\n             \xe2\x94\x94\xe2\x94\x80431 /lib/systemd/systemd-networkd\n

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Answer 1

您的fstab条目看起来不错并且应该可以正常工作。

然而，它。似乎是在网络连接可用之前尝试安装（特别是 systemd 的连接）。因此出现了这些错误：

CIFS VFS：连接到套接字时出错。正在中止操作。

和

systemd[1]：media-Nas.mount：挂载进程已退出，代码=已退出，状态=32/n/a systemd[1]：media-Nas.mount：失败，结果为“退出代码”。systemd[1]：无法挂载 CIFS 共享。

这是由于该服务systemd-networkd-wait-online 被禁用所致。

像这样启用服务：

sudo systemctl enable systemd-networkd-wait-online

这应该执行没有错误。

之后重新启动您的系统。您的网络共享现在应该在启动时安装。

如果共享仍未安装，请检查：

systemctl status networkd-dispatcher.service systemd-networkd.service

并查看任一服务是否被禁用并启用它们。然后重新启动系统。

Answer 2

我也有完全相同的问题。虽然在我的例子中，CIFS 共享托管在带有 DD WRT 3.0 的 ASUS RT AC68U 上

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这是我解决问题的方法：

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(1) 启用这些服务（因为我过去已经禁用了这些服务）：

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sudo systemctl enable systemd-networkd-wait-online\n\nsudo systemctl enable systemd-networkd.service\n\nsudo systemctl enable NetworkManager-wait-online.service\n

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注意：如果这些服务中有任何一个masked，那么您需要首先unmask，然后启用它。

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您可以在此处找到有关如何正确操作的更多信息unmask：[1]和[2]。

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(2) 我注释掉（删除）fstabCIFS共享条目，并创建systemd mount为 cifs 共享创建了：

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注意：在目录中创建一个新文件 media-admn-nas.mount/etc/systemd/system。

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文件名必须包含安装点名称，其中斜杠替换为 \xe2\x80\x9cminus\xe2\x80\x9d。挂载目录/media/admn/nas => media-admn-nas.mount

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sudo nano /etc/systemd/system/media-admn-nas.mount

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[Unit]\nDescription=CIFS Mount Service \nRequires=network-online.target systemd-networkd.service\nAfter=network-online.target network-online.service media-admn-1\\x2d6TB.mount remote-fs.target\nWants=network-online.target NetworkManager-wait-online.service\n\n[Mount]\nWhat=//192.168.1.1/nas\nWhere=/media/admn/nas\nOptions=rw,_netdev,auto,cache=none,vers=3.11,credentials=/home/admn/.smbcredentials,forceuid,forcegid,uid=1000,gid=1000\nType=cifs\nTimeoutSec=15\n\n[Install]\nWantedBy=multi-user.target\n

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Note-1：在我的例子中，media-admn-1\\x2d6TB.mount是一个额外的硬盘驱动器，我在其中安装了 cifs 共享，因此我将其添加为After=要求添加了它。

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Note-2：由于我仍然收到错误，所以我添加了TimeoutSec=15

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(3) 启用挂载：

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sudo systemctl enable media-admn-nas.mount\n\nsudo systemctl daemon-reload\n

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(4) 重启：重启后15秒，CIFS共享应该被挂载。

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(5) 检查状态：

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$ systemctl status media-admn-nas.mount\n\xe2\x97\x8f media-admn-nas.mount - CIFS Mount Service\n     Loaded: loaded (/etc/systemd/system/media-admn-nas.mount; enabled; vendor preset: enable>\n     Active: active (mounted) since Sun 2021-01-31 10:37:52 IST; 1h 58min ago\n      Where: /media/admn/nas\n       What: //192.168.1.1/nas\n      Tasks: 0 (limit: 19083)\n     Memory: 12.0K\n     CGroup: /system.slice/media-admn-nas.mount\n

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