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Update docs about fdisk/gdisk support for discoverable partitions

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This updates the docs about using fdisk/gdisk to make partitions with the right
partition type UUID as defined in the discoverable partitions spec.

Improve wording/grammar/formatting, and reflect that gdisk supports this as
well nowadays; see https://www.rodsbooks.com/gdisk/revisions.html
This commit is contained in:
wouter bolsterlee 2021-02-21 18:00:55 +01:00 committed by Luca Boccassi
parent 086c9fbc03
commit a1f782e44c
1 changed files with 9 additions and 7 deletions
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16
docs/DISCOVERABLE_PARTITIONS.md
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@ -225,10 +225,12 @@ appliance-like installations.
### What partitioning tools will create a DPS-compliant partition table?
As of util-linux 2.25.2, the fdisk tool provides type codes to create the root,
home, and swap partitions that the DPS expects, but the gdisk tool (version
0.8.10) and its variants do not support creation of a root file system with a
matching type code. By default, fdisk will create an old-style MBR, not a GPT,
so typing 'l' to list partition types will not show the choices that the root
partition with the correct UUID. You must first create an empty GPT and then
type 'l' in order for the DPS-compliant type codes to be available.
As of util-linux 2.25.2, the `fdisk` tool provides type codes to create the
root, home, and swap partitions that the DPS expects, By default, `fdisk` will
create an old-style MBR, not a GPT, so typing `l` to list partition types will
not show the choices to let you set the correct UUID. Make sure to first create
an empty GPT, then type `l` in order for the DPS-compliant type codes to be
available.
The `gdisk` tool (from version 1.0.5 onward) and its variants (`sgdisk`,
`cgdisk`) also support creation of partitions with a matching type code.