## here is a paste of my partition tables for all my disks.
## after that I try to mount a partition on hdb
###first /dev/hda:
root@ubuntu:/home/ubuntu# fdisk /dev/hda
The number of cylinders for this disk is set to 4865.
There is nothing wrong with that, but this is larger than 1024,
and could in certain setups cause problems with:
1) software that runs at boot time (e.g., old versions of LILO)
2) booting and partitioning software from other OSs
(e.g., DOS FDISK, OS/2 FDISK)
Warning: ignoring extra data in partition table 5
Warning: ignoring extra data in partition table 5
Warning: ignoring extra data in partition table 5
Warning: invalid flag 0x1616 of partition table 5 will be corrected by w(rite)
Command (m for help): p
Disk /dev/hda: 40.0 GB, 40020664320 bytes
255 heads, 63 sectors/track, 4865 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System
/dev/hda1 1 2432 19534880+ 83 Linux
/dev/hda2 2432 4865 19543072+ 5 Extended
/dev/hda5 ? 25502 46417 168002307+ 36 Unknown
Command (m for help): q
root@ubuntu:/home/ubuntu#
## now /dev/hdb
root@ubuntu:/home/ubuntu# fdisk /dev/hdb
The number of cylinders for this disk is set to 2491.
There is nothing wrong with that, but this is larger than 1024,
and could in certain setups cause problems with:
1) software that runs at boot time (e.g., old versions of LILO)
2) booting and partitioning software from other OSs
(e.g., DOS FDISK, OS/2 FDISK)
Command (m for help): p
Disk /dev/hdb: 20.4 GB, 20491075584 bytes
255 heads, 63 sectors/track, 2491 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System
/dev/hdb1 * 1 2491 20008798 83 Linux
Command (m for help): q
root@ubuntu:/home/ubuntu#
##now hdc
root@ubuntu:/home/ubuntu# fdisk /dev/hdc
The number of cylinders for this disk is set to 2501.
There is nothing wrong with that, but this is larger than 1024,
and could in certain setups cause problems with:
1) software that runs at boot time (e.g., old versions of LILO)
2) booting and partitioning software from other OSs
(e.g., DOS FDISK, OS/2 FDISK)
Command (m for help): p
Disk /dev/hdc: 20.5 GB, 20576747520 bytes
255 heads, 63 sectors/track, 2501 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System
/dev/hdc1 * 1 2392 19213708+ 83 Linux
/dev/hdc2 2393 2501 875542+ 5 Extended
/dev/hdc5 2393 2501 875511 82 Linux swap / Solaris
Command (m for help): q
root@ubuntu:/home/ubuntu#
##HDD is DVD-rom.
## now I will mount a partition on hdb
root@ubuntu:/home/ubuntu# mkdir /mnt/hdbmount
root@ubuntu:/home/ubuntu# mount /dev/hdb1 /mnt/hdbmount/
mount: you must specify the filesystem type
root@ubuntu:/home/ubuntu#
## now one on hdc
root@ubuntu:/home/ubuntu# mkdir /mnt/hdcmount
root@ubuntu:/home/ubuntu# mount /dev/hdc2 /mnt/hdcmount/
mount: you must specify the filesystem type
root@ubuntu:/home/ubuntu#
##all of these could be normally mounted before!