Ubuntu :: Mounting Two Hard Disk After Installation?

Recently I had installed "Storage Device Manager", since because my hard drive partitions were not mounted correctly during installation.

I own to hard disk "sda" 120 GB & "sdb" 1000 GB , since during boot time i had mounted the "sda" having 3 partitions of windows on locations "/partion_name 1, 2, & 3" at root, and "sdb" was not mounted during instalation.

After installation I had added "sdb" with my system and was working fine.

But "sba" was mounted at "/partion_name 1, 2, & 3", But I wanted to change this type of partion what "sdb" i.e it should prompt me for the password when I use to mount it, So I tried to change the mount type for the "sba" But wasn't able to do this beacause of error "Disk is been used by other process".

Now what i require is to mount "sda" partitions such as It may prompt for password when I try to mount and in "sdb1" having partions "sdb10" to be mounted automatically during boot time and the rest partions have to be prompted for password when I try to mount it.Is it possible..?

*Please suggest me the whole procedure in manual manner(Command line) for the same
*Also using "Storage Device Manager"
*if I remove "Storage Device Manager" in future thus it effct my system partitions
*If I mount the partition in "/media/partion_name" thus it will solve my problem.

Quote:

Details
UBUNTU 10.10
Harddisk:
sda : "sda1" mountpoint- "/win_xp"

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