While attempting to soft mod an old XBox using the cable swap method, XboxHDMaker kept giving me the error:
No xbox partition table found on /dev/hda drive is not locked but locking is enabled dont reboot untill you have build a working xbox hdd since reboot will lock the drive press ant key to abort operation.
The hard drive in question had a valid partition table, but several attempts left me with the same message.
I believe the issue is that I was not restarting the PC. The PC was already booted into the Linux live CD. I shut down the PC and rebooted it to the BIOS setup screen. At this point I swapped cables. It worked!