Subject: [PATCH v2] linux-initrd: raw-initrd: Add keyword argument #:pre-mount.

From: Hilton Chain <[email-masked]>
Date: Sat, 12 Nov 2022 21:59:26 +0800

* gnu/system/linux-initrd.scm (raw-initrd): Add keyword argument #:pre-mount.
Document it.
* doc/guix.texi (initial RAM disk): Likewise.
---
v1 -> v2:
1. Use gexp instead of a list.
2. Documentation.

Haven't begun my SSH test yet :P

 doc/guix.texi               | 8 +++++---
 gnu/system/linux-initrd.scm | 7 +++++--
 2 files changed, 10 insertions(+), 5 deletions(-)

diff --git a/doc/guix.texi b/doc/guix.texi
index 3f76184495..35eb128f6e 100644
--- a/doc/guix.texi
+++ b/doc/guix.texi
@@ -37844,15 +37844,17 @@ here is how to use it and customize it further.
 @cindex initrd
 @cindex initial RAM disk
 @deffn {Scheme Procedure} raw-initrd @var{file-systems} @
-       [#:linux-modules '()] [#:mapped-devices '()] @
-       [#:keyboard-layout #f] @
-       [#:helper-packages '()] [#:qemu-networking? #f] [#:volatile-root? #f]
+       [#:linux-modules '()] [#:pre-mount #t] [#:mapped-devices '()] @
+       [#:keyboard-layout #f] [#:helper-packages '()] @
+       [#:qemu-networking? #f] [#:volatile-root? #f]
 Return a derivation that builds a raw initrd.  @var{file-systems} is
 a list of file systems to be mounted by the initrd, possibly in addition to
 the root file system specified on the kernel command line via @option{root}.
 @var{linux-modules} is a list of kernel modules to be loaded at boot time.
 @var{mapped-devices} is a list of device mappings to realize before
 @var{file-systems} are mounted (@pxref{Mapped Devices}).
+@var{pre-mount} is a G-expression to evaluate before realizing
+@var{mapped-devices}.
 @var{helper-packages} is a list of packages to be copied in the initrd.
        It may
 include @code{e2fsck/static} or other packages needed by the initrd to check
diff --git a/gnu/system/linux-initrd.scm b/gnu/system/linux-initrd.scm
index 4c4c78e444..58e95a1312 100644
--- a/gnu/system/linux-initrd.scm
+++ b/gnu/system/linux-initrd.scm
@@ -172,6 +172,7 @@ (define* (raw-initrd file-systems
                       #:key
                       (linux linux-libre)
                       (linux-modules '())
+                      (pre-mount #t)
                       (mapped-devices '())
                       (keyboard-layout #f)
                       (helper-packages '())
@@ -183,7 +184,8 @@ (define* (raw-initrd file-systems
 mounted by the initrd, possibly in addition to the root file system specified
 on the kernel command line via 'root'.  LINUX-MODULES is a list of kernel
 modules to be loaded at boot time. MAPPED-DEVICES is a list of device
-mappings to realize before FILE-SYSTEMS are mounted.
+mappings to realize before FILE-SYSTEMS are mounted. PRE-MOUNT is a
+G-expression to evaluate before realizing MAPPED-DEVICES.
 HELPER-PACKAGES is a list of packages to be copied in the initrd. It may include
 e2fsck/static or other packages needed by the initrd to check root partition.

@@ -255,7 +257,8 @@ (define kodir
                         (map spec->file-system
                              '#$(map file-system->spec file-systems))
                         #:pre-mount (lambda ()
-                                      (and #$@device-mapping-commands
+                                      (and #$pre-mount
+                                           #$@device-mapping-commands
                                            #$@file-system-scan-commands))
                         #:linux-modules '#$linux-modules
                         #:linux-module-directory '#$kodir

base-commit: 2757de2e2b271d87f6f72ba4161c2225fbdc9e78
--
2.38.1