That numbering looks sane - Linux partitions 1-4 are primary partitions (one of which can be an extended partition to maintain compatibility with DOS/Windows). If there is an extended partition then 5-64 are logical partitions in that extended partition. It is common with Linux to assign a small primary partition to /boot for the Kernel to load from for compatibility with old BIOS implementations, and then put everything else in an extended partition that the OS can access independently.
If you haven't already, I would get another hard drive and clone your existing drive to it, then run recovery on the cloned drive (if something goes wrong this gives you another chance to clone the drive and try again). Aside from anything the recovery tools should work much faster over the working drive even if the data is corrupt. There are some boot ISO images you can burn to a CD/DVD or USB stick to make this easier, both for cloning and recovery options - The Ultimate Boot CD being a popular choice with Linux and Windows PE based tools.
Good luck - very jealous of your Mk4 (I have a Mk2XG upright that I never get to play any more, though my 15 month old loves it, would love to have the space to make a grand sing). I hope you get it working again soon!
Regards,
James
On 8 September 2014 15:16, orionplt@yahoo.com [disklavier] <disklavier@yahoogroups.com> wrote:
The damaged drive is still being recovered (slow process) but I am wondering if it is possible to copy the salvaged music files from the old drive to a new rebuilt drive. It appears that the music files reside in the Home partition but I am not sure how the system determines what music is on the disk for both the player and the PRC-100 menu: database system or file structure in the directory? If it is directory/file structure I think that I should be able to copy all the salvaged files over directly and they should work. I also remember reading that the pianosoft files might have some kind of DRM structure? Are there any additional folders/file that need to be copied over to allow these to play on my replacement drive? Is there another/better way to move the music files from the old drive to the new rebuilt one keeping in mind that the old one does not give me access to the music files when in the disklavier? It looks like the first section of the Home partition is where most of the bad sectors are so I am thinking that the system can see the partition but can't read it even though there is data on there. Using my recovery tools I can see most of the music files as they are saved on the disklavier's drive and could pull them over directly or put them on a USB drive and then possibly install them through the disklavier interface. Any insights or recommendations are appreciated.As a side note:I originally thought that there were 9 partitions but in looking through the drive structure I believe that there are 6 physical partitions but that when the system installs it appears to numbers them:BOOT =1SWAP=5ROOT=6DATA=7VAR=8HOME=9HOME being where all the user information resides and therefore music is held.Thanks,Joel