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I am following the instructions here: https://help.ubuntu.com/community/InstallingANewHardDrive

It says:

4) Create one partition occupying all the space on the drive:

(parted) mkpart primary 0 0

5) Check that the results are correct:

(parted) print

However when I do this I get:

$sudo parted /dev/sda
GNU Parted 3.2
Using /dev/sda
Welcome to GNU Parted! Type 'help' to view a list of commands.
(parted) mklabel gpt
(parted) unit GB
(parted) mkpart primary 0 0
(parted) print
Model: ATA Some SSD (scsi)
Disk /dev/sda: 240GB
Sector size (logical/physical): 512B/512B
Partition Table: gpt
Disk Flags:

Number  Start   End     Size    File system  Name     Flags
 1      0.00GB  0.00GB  0.00GB               primary

The Start and End of 0GB and Size of 0GB is making me think this isn't correct. I would have thought the size should have been 240GB (or close to it). Are these instructions correct? If not, what is the correct way to make a single partition that covers the entire disk?

2

Your mkpart line is wrong. The parameters are: partition-name, start-position and size.

In parted, run

`rm primary` 
`mkpart primary 2048s 100%`

to remove the old, wrong, partition and recreate a new that spans the whole disk.

  • What does p1 and 2048s stand for? – User Sep 12 '18 at 8:06
  • p1 is the partition name, you can use any name, p1, primary or what you like. 2048s is the start sector for the partiton. This is needed for some disks / disk-arrays to get proper alignment of the partiton and optimal IO performance. This post explains how to calculate this value: rainbow.chard.org/2013/01/30/… – Soren A Sep 12 '18 at 8:13
  • If you are in doubt of what commands or parameters does, read the manual-page: man parted. – Soren A Sep 12 '18 at 8:14
  • The man page on Ubuntu says the first parameter of mkpart is part-type should be one of "primary", "logical", or "extended". Is using an arbitrary name correct? – User Sep 12 '18 at 8:29
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    Primary / logical extended is only for MSDOS / MBR partitioning. The line I initially wrote will work, but I have changed the answer so that it matches what the manual says ;-) – Soren A Sep 12 '18 at 8:36

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