Hello,

How can I see my hardisk information?
I have 2 hardisks on the computer. How can I see information about them.
And how can I know which partition is on which hardisk.
I want to copy some files from one hard disk to another and do not know how to access.

I only have comand line access.

Thanks.

Try using these commands:
hdparm -i /dev/hda
hdparm -I /dev/hda
fdisk -l

yes,

that works but I want to see disk size (there I see cylindres etc.) and how can I access 2nd hardisk.

fdisk should should show the size as well. You can access any drive by changing the device name away from hda.

This is what I get for fdisk /dev/hda

Disk /dev/hda: 255 heads, 63 sectors, 5005 cylinders
Units = cylinders of 16065 * 512 bytes

Device Boot Start End Blocks Id System
/dev/hda1 1 6 48163+ 83 Linux
/dev/hda2 7 134 1028160 82 Linux swap
/dev/hda3 135 200 530145 83 Linux
/dev/hda4 201 5005 38596162+ f Win95 Ext'd (LBA)
/dev/hda5 201 266 530113+ 83 Linux
/dev/hda6 267 649 3076416 83 Linux
/dev/hda7 650 1287 5124703+ 83 Linux
/dev/hda8 1288 5005 29864803+ 83 Linux

for fdisk /dev/hda1 I don't get anything, just a message saying it's not a ...

Maybe you have an older version of fdisk - mine is "fdisk v2.12" (fdisk -v). You could use df:
df -h

hda1 is the first partition on the first fisk - try hdb, hdc etc.

Yeah it seems likely that you could have an old fdisk because I just tried it and the first thing listed is size in GB then in bytes

root@darkstar:/home/adam# fdisk -l

Disk /dev/hda: 40.0 GB, 40027029504 bytes
16 heads, 63 sectors/track, 77557 cylinders
Units = cylinders of 1008 * 512 = 516096 bytes

Device Boot Start End Blocks Id System
/dev/hda1 * 1 30543 15393640+ c W95 FAT32 (LBA)
/dev/hda2 46538 77552 15631245 f W95 Ext'd (LBA)
/dev/hda3 30544 31039 249984 82 Linux swap
/dev/hda4 31040 46538 7811244 83 Linux
/dev/hda5 46538 77552 15631213+ b W95 FAT32

Partition table entries are not in disk order

You can also use cfdisk as well. It shows it in a very clean format.