tmpfs size option specified in fstab is ignored during boot proccess in Red Hat Enterprise Linux 6

Solution Verified - Updated 2014-04-22T16:13:45+00:00 -

Issue

We explicitly specify the size of some tmpfs mounts in /etc/fstab with a "size=" mount option, e.g.:
```
tmpfs   /dev/shm    tmpfs   size=4g   0 0
```
In RHEL4 and RHEL5 this causes the tmpfs mount to come up at boot time with the specified size; however, in RHEL6 the tmpfs mount comes up at boot time with a size half that of system RAM, disregarding any "size" option in /etc/fstab.

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