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01-27-2010, 10:08 AM
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#1
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LQ Newbie
Registered: Dec 2009
Posts: 8
Rep:
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Display Free Hard Disk Space using Fdisk
I like to see the unmounted hard disk space free that can be used to create more partition using fdisk. Please see below "fdisk -l" shows the following table
Disk /dev/sda: 250.0 GB, 250000000000 bytes
64 heads, 32 sectors/track, 238418 cylinders
Units = cylinders of 2048 * 512 = 1048576 bytes
Disk identifier: 0x49e2fd2f
Device Boot Start End Blocks Id System
/dev/sda1 5 900 917504 5 Extended
/dev/sda2 901 4995 4193280 6 FAT16
/dev/sda4 * 1 4 4080 4 FAT16 <32M
/dev/sda5 5 254 255984 6 FAT16
/dev/sda6 255 504 255984 6 FAT16
/dev/sda7 505 614 112624 fc VMware VMKCORE
/dev/sda8 615 900 292848 6 FAT16
If I use "fdisk /dev/sda". I can create a partition /dev/sda3 and more but I want to see the free space before creating the partition.
Using "fdisk -l" does not displays the free space that can be used like to create partition /dev/sda3, which is the free space on the partition around 244GB. I like to see that or how I can display that so I can create a partition on it. Any tip would be nice.
Last edited by amirsd; 01-27-2010 at 10:10 AM.
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01-27-2010, 10:24 AM
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#2
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Moderator
Registered: Jun 2001
Location: UK
Distribution: Gentoo, RHEL, Fedora, Centos
Posts: 42,826
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not sure why you want it. As I read the table you have space after cylinder 4995, where sda2 ends, so if you start it at 4996 and go on to fill the rest of the disk, which would be fdisk's default, that'll be your partition.
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01-27-2010, 10:26 AM
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#3
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Senior Member
Registered: Jul 2006
Location: Kolkata, India
Distribution: 64-bit GNU/Linux, Kubuntu64, Fedora QA, Slackware,
Posts: 2,726
Rep: 
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use gparted or qtparted or parted
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01-27-2010, 10:38 AM
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#4
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Member
Registered: Nov 2009
Location: Alabama
Distribution: Arch x86_64
Posts: 648
Rep:
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try df -h not sure if it shows unused partition space or not. I don't have any to try it on
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01-27-2010, 11:04 AM
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#5
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Moderator
Registered: Jun 2001
Location: UK
Distribution: Gentoo, RHEL, Fedora, Centos
Posts: 42,826
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no it doesn't, it's for filesystems, not partitions, very different things.
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01-27-2010, 01:35 PM
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#6
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Moderator
Registered: Jan 2005
Location: Midwest USA, Central Illinois
Distribution: SlackwareŽ
Posts: 10,409
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Hi,
I'm not sure what the OP is trying to do but 'cfdisk /dev/OP_device' will show the partition information and any free unallocated space.

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