Unable to mount filesystem using python subprocess popen

Question

I am trying to mount nas filesystem using python subprocess.popen command, i am running a script to mount the filesystem. some how the script is unable to mount the filesystem.

My script:

self.mountSrc  = subprocess.Popen('mount'+' '+ self.src_m[l], shell=True)

print self.mountSrc

if self.mountSrc==0:

   print "Mounted filesystem:"+ self.src_m[l]

Output from my script:

Mounting: Source Mount Point:/rsyncTesting/source/share1
Starting:[................................................... ] Done!

mount: can't find /rsyncTesting/source/share1 in /etc/fstab or /etc/mtab
1

I am updating the filesystem path in /etc/fstab before running the mount command. Also i am able to mount the filesystem manually as root user from command line.

slcnas888:/export/rsyncScriptProject_Source/rsyncShare1/.zfs/snapshot/SR_0000-0000000_Refresh_rsyncShares_RSYNC_PROJ_exp13April16 /rsyncTesting/source/share1

Answer 1

I just modified the mount command to include the name of the mount point,
ie mount /absolute-nas-fs-path /mount-point instead of only mount /absolute-nas-fs-path .

I observed that in linux, when we add entries to the /etc/fstab file, running mount <mount point path> works fine from the shell, but in a python subprocess we need to pass both the filesystem absolute path as well as the mount point in the command parameter.

# self.src_fs[l] is an item from my list of filesystem paths.
# self.src_m[l] is an item from my list of mount points.
self.mountSrc = subprocess.Popen('mount ' + self.src_fs[l] + ' ' + self.src_m[l], shell = True)
print self.mountSrc
if self.mountSrc == 0:
    print "Mounted filesystem:" + self.src_m[l]