How to Resolve CIFS mounted backup drive permission errors

Introduction

Use the steps below to resolve CIFS mounted backup drive errors.

If needed, please review our full documentation on this. 

Procedure

1. Edit the /etc/fstab file so that the CIFS-mounted drive uses the user_xattr option. Example:

 /dev/mapper/centos_centos--7--clone-root / xfs defaults 1 1
 UUID=01c6e08e-bbd1-4046-af48-beaf233746d4 /boot xfs defaults 1 2
 /dev/mapper/centos_centos--7--clone-swap swap swap defaults 0 0
 //192.0.2.0/mybackup /backup cifs user,uid=500,rw,suid,credentials=/root/.cifs,user_xattr 0 0

2. Run the remount mount command to remount the CIFS-mounted drive.

3. Run the lsattr /path/to/CIFS-mount command to add the extended attributes.

Important:
The mount does not support extended attributes if the lsattr /CIFS_mount command returns the following error:

Error means not available: lsattr: Inappropriate ioctl for device While reading flags on ...

A mount that does not support extended attributes will not function with cPanel & WHM backups.