When mounting NAS on an ECS instance in Linux, the system prompts "mount: can't find/root/nas in/etc/fstab" error

Problem description

Log on to the Linux server and run the following command to Mount NAS through NFS.

Mount-t nfs-o vers = 0xxxxxx.nas.aliyuncs.com: // root/nas

The following error message is displayed.

mount: can't find /root/nas in /etc/fstab

Causes

The command format is incorrect.

Solution

1. Check command DiscoveryVers = 0xxxxxx.nas.aliyuncs.com :/The parameter is invalid.
2. Run the following command to perform rollback:

   Mount-t nfs-o vers = 4 xxxxxx.nas.aliyuncs.com: // root/nas

   Note:Vers = 4The NFS 4.0 protocol is used for mounting parameters.

3. Run the following command to confirm that the hotfix package has taken effect:

   df -h

   A similar output is displayed.
   

References

The basic format of the mount isMount [-t vfstype] [-o options] device dir.

• The "-t vfstype" parameter specifies the file system type. Generally, file formats include the following.
  • CD or CD Image: windows660.
  • DOS fat16 file system: msdos.
  • Windows 9x fat32 file system: vfat.
  • Windows NT ntfs file system: ntfs.
  • Windows File network sharing: smbfs.
  • File network sharing in UNIX (LINUX): nfs.
• -O options is used to describe how a device or file is mounted. Common parameters include the following.
  • Loop: used to mount a file to the system as a hard disk partition.
  • Ro: Mount devices in read-only mode.
  • Rw: mount the device in read/write mode.
  • Iocharset: specifies the character set used to access the file system.
  • Vers: the version of the file system.
• "Device" indicates the device to be mounted.
  • Dir: The mount point of the device on the system ).

Application scope

• ECS