also As far as I understand, i will add this code bsh file 
code:    "devb-ram ram capacity=8192 &"

i will runing this code on command prompt

dinit -hq /dev/hd1t77
mount /dev/hd1t77 /ramdisk
export TMPDIR=/ramdisk

or i will add all code to bsh file?

Do I understand correctly?

Yes, in a script you need waitfor.  When creating by hand from a shell you can't use waitfor as you noted previously.

Hi Dennis,

I get an error when copying helloworld app. 
Error: "cp: Ran out of disk space writing /ramdisk/helloapp."

You can look follwoning link for my steps.

http://www.youtube.com/watch?v=BeOWvx49Q2Q

Hi Dennis,

As far as I understand, we have created 8 Mb ramdisk this command "devb-ram ram capacity=8192 & "

but my application 11,3MB. İf I created 16MB ramdisk this command ""devb-ram ram capacity=8192 & " mDoes any problem 
occurs for qnx target system?

I wrote previous command incorrectly

the command must be as follows   "devb-ram ram capacity=16384 &"