QUOTE
-unlocking old 300 gb hard drive (using music file copy method)
You can backup the eeprom of the old xbox. With the eeprom.bin, you can unlock the harddisk from within xboxhdm. No need to do hotswap tricks.
The ndure script just alters some files on the xbox harddisk. I have no idea how it behaves on an already softmodded C partition. If the previous softmod was ndure as well, I assume everything should work as expected. If it was an older softmod using different font files, it probably won't work as expected.
There is also the nkpatcher 06 and nkpatcher 67 issue. You will need the same one, or your F and (or) G partition will probably no longer be available, since the bios expects a different drive geometry.
regards.
QUOTE(karmatikal @ Dec 1 2009, 03:27 AM)

Reading a little more it seems that I could do this by
-soft-modding new XBOX to retrieve eeprom
-write a xboxhdm cd with eeprom
-unlocking old 300 gb hard drive (using music file copy method)
-hook up 300 gb to pc and run ndure or whatever and lock using new xbox eeprom
-put 300 gb in new xbox and it should work?
Can someone please confirm this?
Or is there an easier or different way to get this done, like just copying new eeprom over to the XBOX so I don't need to backup and restore data..
thanks
You mean by hotswapping? I wouldn't recommend that if you can avoid it. Try to get the old eeprom.bin or try some of the default passwords like XBOXSCENE (if it was locked using xboxhdm) or TEAMASSEMBLY (if it was locked using ConfigMagic) to unlock the drive. I also think you have to make the C drive stock before softmodding for the new Xbox, you can do that using xboxhdm.
QUOTE(karmatikal @ Dec 1 2009, 03:27 AM)

Or is there an easier or different way to get this done, like just copying new eeprom over to the XBOX so I don't need to backup and restore data..
thanks
You could copy the eeprom from the old Xbox using ConfigMagic, provided that the eeproms are compatible. The kernel versions also have to be compatible for NDURE, as mentioned earlier.
http://wiki-scene.com/EEPROM_(Xbox)
Compatibility
While EEPROM chips are all the same, the data within is formatted differently between different console versions. Attempting to write a given EEPROM to an incompatible system can result in trouble.
Version 1.0 EEPROMs are only compatible with other 1.0 EEPROMs.
1.1 through to 1.5 EEPROMs are all compatible with each other.
1.6 and 1.6b EEPROMs are only compatible with each other.
LiveInfo and ConfigMagic can convert 1.0 EEPROMs to work with 1.1-1.5 systems, and vice versa. There is currently no tool available to convert 1.6/1.6b EEPROMs.