We now have a breakpoint just before each of the hook invocations, and one
just before we switch to the real root.
I looked at parsing out the break= option early in the init script with an
eye towards letting it be changed when we drop into in interactive shell, but
environment variable inheritance made that too much of a bother.
Passing multiple break= options should work just fine, however.
---
init | 8 ++++++--
1 files changed, 6 insertions(+), 2 deletions(-)
diff --git a/init b/init
index f5b4177..74b3368 100755
--- a/init
+++ b/init
@@ -48,18 +48,20 @@ mkdir /dev/pts
mount -t devpts -o gid=5,mode=620 /dev/pts /dev/pts
# pre-udev scripts run before udev starts, and are run only once.
+getarg 'break=pre-udev' && emergency_shell
source_all pre-udev
# start up udev and trigger cold plugs
udevd --daemon
udevadm trigger >/dev/null 2>&1
-udevadm settle --timeout=30
+udevadm settle --timeout=30 >/dev/null 2>&1
NEWROOT="/sysroot"
# pre-mount happens before we try to mount the root filesystem,
# and happens once.
+getarg 'break=pre-mount' && emergency_shell
source_all pre-mount
-
+getarg 'break=mount' && emergency_shell
# mount scripts actually try to mount the root filesystem, and may
# be sourced any number of times. As soon as one suceeds, no more are sourced.
while :; do
@@ -83,7 +85,9 @@ done
}
# pre pivot scripts are sourced just before we switch over to the new root.
+getarg 'break=pre-pivot' && emergency_shell
source_all pre-pivot
+getarg break && emergency_shell
echo "Switching to real root filesystem $root"
exec switch_root "$NEWROOT" "$INIT" $CMDLINE || {
# davej doesn't like initrd bugs
--
1.6.0.6
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