I was wondering if anyone here could help me. I have an EFS file that was built using makeefs. I am trying to mount this
 in the virtual runtime QNX to extract the files from it (as the original files are gone). 

I've tried using devb-loopback, but flashctl does not appear to like that.

I've used the commands:
devb-loopback blk cache=128k,auto=none loopback fd=/root/file.efs
flashctl -p /dev/lo0 -n /mnt -m

It gives me an error saying it can't mount the partition.


I've also tried copying the file into a ramdisk as shown in:
http://www.qnx.com/developers/docs/660/index.jsp?topic=%2Fcom.qnx.doc.neutrino.building%2Ftopic%
2Fbuilding_nto_TransferringToFlash.html

But that also gives me a similar mounting error.

Has anyone successfully managed to mount an EFS under QNX without flashing it to a chip?