docs: reword intro in DISCOVERABLE PARTITIONS

This specification is useful independently of UEFI, so avoid making assertions
about UEFI. Also reword the intro to say what this is about in the very first
sentence. Closes #16570.

diff --git a/docs/DISCOVERABLE_PARTITIONS.md b/docs/DISCOVERABLE_PARTITIONS.md
index f1537b89399a5e180fa7f22da917d9f4676f1927..20f4206d08e938e452e060449cf500be20fec7f5 100644 (file)
--- a/docs/DISCOVERABLE_PARTITIONS.md
+++ b/docs/DISCOVERABLE_PARTITIONS.md
@@ -9,21 +9,21 @@ _TL;DR: Let's automatically discover, mount and enable the root partition,
 `/home/`, `/srv/`, `/var/` and `/var/tmp/` and the swap partitions based on
 GUID Partition Tables (GPT)!_
 
-The GUID Partition Table (GPT) is mandatory on EFI systems. It allows
-identification of partition types with UUIDs. So far Linux has made little use
-of this, and mostly just defined one UUID for file system/data partitions and
-another one for swap partitions.  With this specification, we introduce
-additional partition types to enable automatic discovery of partitions and
-their intended mountpoint.  This has many benefits:
+This specification describes the use of GUID Partition Table (GPT) UUIDs to
+enable automatic discovery of partitions and their intended mountpoints.
+Traditionally Linux has made little use of partition types, mostly just
+defining one UUID for file system/data partitions and another one for swap
+partitions. With this specification, we introduce additional partition types
+for specific uses. This has many benefits:
 
 * OS installers can automatically discover and make sense of partitions of
   existing Linux installations.
-* The OS can discover and mount the necessary file systems with a non-existing
+* The OS can discover and mount the necessary file systems with a non-existent
   or incomplete `/etc/fstab` file and without the `root=` kernel command line
   option.
-* Container managers (such as nspawn and libvirt-lxc) can decode and set up
+* Container managers (such as nspawn and libvirt-lxc) can introspect and set up
   file systems contained in GPT disk images automatically and mount them to the
-  right places, thus allowing booting the same, identical images on bare-metal
+  right places, thus allowing booting the same, identical images on bare metal
   and in Linux containers. This enables true, natural portability of disk
   images between physical machines and Linux containers.
 * As a help to administrators and users partition manager tools can show more