Fdisk: Difference between revisions
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* [[Linux#Commands|Linux]] | * [[Linux#Commands|Linux]] | ||
* [[Linux 7 Storage Concepts#Commands|Storage - Commands]] | |||
* [[sfdisk]] | * [[sfdisk]] | ||
* [[parted]] | |||
=Overview= | =Overview= | ||
Manipulates the partition table. | Manipulates the partition table. | ||
=Limitations= | |||
<tt>fdisk</tt> does not seem to be able to created partition larger than 2 TB. The procedure described [[#Create_a_Partition_that_Spans_the_Entire_Device|below]] produces a 2 TB partition on a 4TB physical disk. To create larger partitions, use [[parted]]. | |||
{{Internal|parted|parted}} | |||
=Create a Partition that Spans the Entire Device= | =Create a Partition that Spans the Entire Device= | ||
| Line 12: | Line 19: | ||
<pre> | <pre> | ||
fdisk /dev/sdb | fdisk /dev/sdb | ||
<pre> | </pre> | ||
<pre> | <pre> | ||
| Line 38: | Line 45: | ||
Syncing disks. | Syncing disks. | ||
</pre> | </pre> | ||
Result: | |||
<pre> | |||
Disk /dev/sdb: 536 MB, 536870912 bytes, 1048576 sectors | |||
Units = sectors of 1 * 512 = 512 bytes | |||
Sector size (logical/physical): 512 bytes / 512 bytes | |||
I/O size (minimum/optimal): 512 bytes / 512 bytes | |||
Disk label type: dos | |||
Disk identifier: 0x4c72790e | |||
Device Boot Start End Blocks Id System | |||
/dev/sdb1 2048 1048575 523264 8e Linux LVM | |||
</pre> | |||
=Options= | |||
==-l== | |||
Latest revision as of 05:37, 15 December 2018
Internal
Overview
Manipulates the partition table.
Limitations
fdisk does not seem to be able to created partition larger than 2 TB. The procedure described below produces a 2 TB partition on a 4TB physical disk. To create larger partitions, use parted.
Create a Partition that Spans the Entire Device
fdisk /dev/sdb
Command (m for help): n
Partition type:
p primary (0 primary, 0 extended, 4 free)
e extended
Select (default p): p
Partition number (1-4, default 1): 1
First sector (2048-1048575, default 2048):
Using default value 2048
Last sector, +sectors or +size{K,M,G} (2048-1048575, default 1048575):
Using default value 1048575
Partition 1 of type Linux and of size 511 MiB is set
Command (m for help): t
Selected partition 1
Hex code (type L to list all codes): 8e
Changed type of partition 'Linux' to 'Linux LVM'
Command (m for help): w
The partition table has been altered!
Calling ioctl() to re-read partition table.
Syncing disks.
Result:
Disk /dev/sdb: 536 MB, 536870912 bytes, 1048576 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk label type: dos Disk identifier: 0x4c72790e Device Boot Start End Blocks Id System /dev/sdb1 2048 1048575 523264 8e Linux LVM