Free disk space

[StickyBit]

Folks,

What command would I use to figure out available disk space on my Hard Drive? I would like to create some new partitions if possible.

Stickybit.

 

[chrishaw]

There are two things you can look at:

df will show you your existing partitions along with usage
fdisk, then l(ist) will show you partitions on a disk and free space

 

[StickyBit]

How to calculate the free space on this disk?

The /dev/sda is 18GB and I allocated 4GB during the inital installation. Where is the 14GB?

[root@tac-tor1web1 /]# fdisk -l /dev/sda

Disk /dev/sda: 255 heads, 63 sectors, 2213 cylinders
Units = cylinders of 16065 * 512 bytes

Device Boot Start End Blocks Id System
/dev/sda1 * 1 392 3148708+ 83 Linux
/dev/sda2 393 653 2096482+ 82 Linux swap
/dev/sda3 654 787 1076355 83 Linux

 

[Morsing]

> Disk /dev/sda: 255 heads, 63 sectors, 2213 cylinders

It has 2213 cylinders of (16065 * 512) = 8Mb.

> /dev/sda3 654 787 1076355 83 Linux

Last used cylinder is 787. This gives 1426 cylinders left.
1426 * 8Mb is 11.4Gb

Cheers Henrik Morsing
IBM Certified AIX 4.3 Systems Administration

 

[StickyBit]

Thanks for the help Henrik Morsing and others. What is the maximun amount of partitions I can create in Linux? Does Linux use a regular ufs file system? If so, I guess the answer would be 8 partitions.

Disk /dev/sda: 255 heads, 63 sectors, 2213 cylinders
Units = cylinders of 16065 * 512 bytes

Device Boot Start End Blocks Id System
/dev/sda1 * 1 392 3148708+ 83 Linux
/dev/sda2 393 653 2096482+ 82 Linux swap
/dev/sda3 654 787 1076355 83 Linux
/dev/sda4 788 2213 11454345 83 Linux

I'm only able to create 1 - 4 partitions.

Thanks,

Stickybit.