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Created pre-mount hook directory

PATCH In review initramfs mailing list 1 participant 1 message Feb 16, 2009

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PATCH 32/50 Created pre-mount hook directory

Gitweb:     http://git.kernel.org/?p=linux/kernel/git/davej/dracut.git;a=commit;h=cd20f1f6ebed3c50d69db35d22519d57ae846ecc
Commit:     cd20f1f6ebed3c50d69db35d22519d57ae846ecc
Parent:     b32f55156d345ddc52c16482ade1766acdda666b
Author:     Victor Lowther <[email protected]>
AuthorDate: Fri Feb 13 04:42:48 2009 -0800
Committer:  Dave Jones <[email protected]>
CommitDate: Mon Feb 16 13:56:42 2009 -0500

[PATCH 32/50] Created pre-mount hook directory

This is for tasks that should run after device discovery, but before mounting the new rootfs. Things like cryptoroot and resume from hibernate should go here.

Hooks are sourced, not executed as separate scripts.

---
 init                  |   16 ++++++++++------
 pre-mount/50cryptroot |    6 ++++++
 pre-mount/99resume    |    7 +++++++
 3 files changed, 23 insertions(+), 6 deletions(-)
init +10 -6
index b12743c..0b158dc 100755
@@ -14,9 +14,17 @@ emergency_shell()
 }
 
 getarg() {
+    local o;
     for o in $(< /proc/cmdline); do
 	[[ $o == $1 ]] && { echo $o; break; }
     done
+    return 1
+}
+
+source_all() {
+    local f
+    [[ -d $1 ]] || return
+    for f in "$d"/*; do; . "$f"; done
 }
 
 echo "Starting initrd..."

@@ -67,12 +75,8 @@ esac
 tries=0
 echo "Waiting up to 30 seconds for $root to become available"
 udevadm settle --timeout=30
-[[ -f /cryptroot ]] && {
-    echo "Encrypted root detected."
-    cryptopts=$(< /cryptroot)
-    /sbin/cryptsetup luksOpen $cryptopts || emergency_shell
-    udevadm settle --timeout=30
-}
+source_all /pre-mount
+
 echo "Trying to mount rootfs $root"
 [[ -e $root ]] || emergency_shell
 ln -s "$root" /dev/root
pre-mount/50cryptroot new file +6 -0
new file mode 100644
index 0000000..39e6e6e
@@ -0,0 +1,6 @@
+#!/bin/bash
+[[ -f /cryptroot ]] || return
+echo "Encrypted root detected."
+cryptopts=$(< /cryptroot)
+/sbin/cryptsetup luksOpen $cryptopts || emergency_shell
+udevadm settle --timeout=30
pre-mount/99resume new file +7 -0
new file mode 100644
index 0000000..7eacd38
@@ -0,0 +1,7 @@
+#!/bin/bash
+resume=$(getarg 'resume=*') || return
+resume=${resume#resume=}
+[[ -b $resume ]] || return
+# parsing the output of ls is Bad, but until there is a better way...
+read x x x x maj min x < <(ls -lH "$resume")
+echo "${maj/,/}:$min"> /sys/power/resume

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