adb remount permission denied

[Guest hyphy]

[EDIT] I have since solved this problem.

So I have an HTC Desire HD. I would like to push a custom Mms.apk to system/app, but I have been unsuccessful so far. The reason why I want to do this is so I can use MMS with my service provider that apparently requires a certain MMS.apk.

I have rooted my phone with VISIONary+

when I do these commands, this is what I get:

adb remount

remount failed: Operation not permitted

adbd cannot run as root in production builds

Then, i tried this

adb shell

$ su

# mount -o remount,rw -t yaffs2 /dev/block/mtdblock3 /system

# mv /mnt/sdcard/Mms.apk /system/app

failed on '/mnt/Mms.apk' - Cross-device link

#

I continued to search for solutions, but it just led me to more and more threads and people saying they magically solved it. I think i need to do something about booting the recovery image using fastboot or something, but i have no idea about this. Is there anyone that has knowledge of this? Thanks in advance.

Edited March 16, 2011 by hyphy