I have two harddisk on my computer and I dont know how to access it to read it or to write on it.

Can you please explain me?

Have you looked in your /mnt file?
I i saw correctly your using redhat right?

I would think it would have mounted it for you and put it in /mnt file.

What exactly are you trying to do? is it a duel boot system or just 2 hard drives on a full linux system.?

I'm usind Redhat 8

In /mnt I only have my cd-r , my cr-rw and my floppy drive

Actualy I have one hard disk with windows and linux and Grub to choose it

And I have one hard disk with nothing on and I want to use it to do backups

Thanks for help

You need to mount the hard drive before you can access them.

With:
mount /dev/<harddrive> <mount point>

I'm not sure how much you know about linux so I am going to explain...

Linux sees your hard drives as /dev/hda and /dev/hdb (/dev/hdx, you replace x with a for the first drive, b for the second, c or the third ect...)

The mount point is where this hard drive will be accessible at. Most cases its in the /mnt dir.

Heres some commands that _should_ get you running (that is if the drive you want to mount is the second drive (/dev/hdb))

Now when you go to /mnt/backup_sys you will be working on the second hard drive....

Do you want this to mount on boot up each time? if so ask I will so you how to do that too...

Andrew

Furthermore assuming you have IDE drives.
/dev/hda = 1st IDE controller master
/dev/hdb = 1st IDE controller slave
/dev/hdc = 2nd IDE controller master
/dev/hdd = 2nd IDE controlle slave
etc. etc. etc...

What do you mean by nothing on it? Is it partitioned?

Thx michaelk... I didn't like my explanation but didn't have much time... was just coming back to fix it, but you got. Thanks again!
Andrew

I dont know if my second drive is partitionned.

By "nothing on it" I mean no data on.

I did what you said for /dev/hdb:

mount /dev/hdb /mnt/second_drive => that created a directory called lost+found

but I did the same ting for /dev/hda

mount /dev/hda /mnt/first_drive => that gave me this message "mount: you must specify the filesystem type "