Originally Posted by hjazz6
Can I just connect the old Linux hard disk to the new system, boot into the NEW linux hard disk and see the old hard disk like I would if I plug in a flash drive? Then copy the files over to the new disk?
Yes, you can. When you boot to the new system, run as root:
You will see the new disk as /dev/sda, and any other disks as /dev/sdb, or /dev/sdc and so on. For this example will say your old Linux disk is /dev/sdb, and has three partitions, sdb1, sdb2 ,sdb3. The fdisk command will show the type of the partition, type 83 is Linux, 82 is swap.
Make a temporary mount point for each partition you want to mount under /mnt.
You can mount the old disk with:
mount /dev/sdb1 /mnt/tmp1
mount /dev/sdb2 /mnt/tmp2
This will put each partition in a separate directory. You can then copy all your files over to your new system.