commit:     d2a5cd2e4331014decb517850e6921ac5f7f1289
Author:     Nowa Ammerlaan <nowa <AT> gentoo <DOT> org>
AuthorDate: Mon May  5 15:48:12 2025 +0000
Commit:     Andreas K. Hüttel <dilfridge <AT> gentoo <DOT> org>
CommitDate: Fri Oct  3 14:22:25 2025 +0000
URL:        https://gitweb.gentoo.org/proj/catalyst.git/commit/?id=d2a5cd2e

doc: document new iso_extra_partition option

Signed-off-by: Andreas K. Hüttel <dilfridge <AT> gentoo.org>
Signed-off-by: Nowa Ammerlaan <nowa <AT> gentoo.org>

 doc/catalyst-spec.5.txt | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/doc/catalyst-spec.5.txt b/doc/catalyst-spec.5.txt
index 33d17c9e..3a74ee1c 100644
--- a/doc/catalyst-spec.5.txt
+++ b/doc/catalyst-spec.5.txt
@@ -180,6 +180,17 @@ This is the full path and filename to the ISO image that 
the
 livecd-stage2 target will create (example:
 `/tmp/installcd-x86-minimal.iso`).
 
+*livecd/iso_extra_partition*::
+If set, specifies the size (in kilobytes) of an extra partition that
+will be added to the ISO image for persistent storage purposes.
+Currently the file system of this partition will always be XFS. Note
+that an XFS partition must be a minimum of 300MB in size. Therefore,
+if set, the minimum value for this option is 300000. Note that, due to
+the nature of the hybrid ISO image, this partition is only effective
+when the ISO image is used as (USB) disk image. This option has no
+effect (other then making the ISO image larger) when the ISO is burned
+to an optical medium.
+
 *livecd/volid*::
 This option sets the volume ID of the CD created (example: `Gentoo
 Linux 2006.1 X86`).

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