You need to find out how those drive are identified in Linux.
They will not be C: D: and so on. They are consider directories.
The drives themselves, if they are mounted, are mounted to the /dev directory. In turn they are linked to a drive name in either the /mnt or /media directories.
The information about them is in the file system table in a file usually in the /etc folder called /etc/fstab.
For instance, on this desktop computer that I am using right now, there are several hard drives. Here's the list (taken from my fstab).
/dev/sda1 / <------The primary drive
When I boot the computer, I am by default in the drive identified as /
If I want to chamge to drive 2 at the command line, I type
or cd /media/drive2/[subdirectory]
(Actually, I use symbolic links
, but I won't go into them here.) To go back to the main drive, I can type just cd
It is possible that Linux does not yet know those drives are there or knows they are there but doesn't know what to do with them. If that's the case, you have to tell it they are there. Without knowing more about your setup, I can't be sure.
Here's a link about mounting and unmounting drives:
Here's a post I wrote up in another life about adding hard drives to a system:
It's nothing earthshaking, but it has lots of links to more information about the Linux file structure, the fstab, and other pages explaining this stuff far better than I can.