gcp, linux, nfs,

GCP Filestore error: "mount: wrong fs type, bad option, bad superblock"

Jan 21, 2023 · 1 min read · Post a comment

GCP Filestore is a managed file storage, the competitor equivalents being: AWS’s EFS and Azure Files. While following the great GCP documentation on how to mount the Filestore NFS managed disk to a VM, I faced the following error:

mount: wrong fs type, bad option, bad superblock on <NFS_IP_address>:/mnt/data,
missing codepage or helper program, or other error (for several filesystems (e.g. nfs, cifs)
you might need a /sbin/mount.<type> helper program)
In some cases useful info is found in syslog - try dmesg | tail or so.

Prerequisites

  • GCP Filestore
  • GCP VM

Solution

On CentOS / RHEL, run the following command:

sudo yum install -y nfs-utils

Ubuntu:

sudo apt install -y nfs-common

If you are dealing with CIFS instead, run:

sudo apt install -y cifs-utils

On a side note, don’t forget to add the NFS mount entry in /etc/fstab, because on the next VM reboot, the mounted disk will “disappear”. Example /etc/fstab NFS entry: <NFS_IP_ADDRESS>:/data /mnt/data nfs defaults 0 0.

To check your current NFS options, run:

nfsstat -m

Conclusion

Related post: NFS mounting in /etc/fstab and verification.

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