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system/inittab: update to fix bug #7442

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Update inittabs (skeleton/busybox & sysvinit) to remove the trailing
REMOUNT_ROOTFS_RW comment used as magic string in system/system.mk to
enable/disable remounting the root filesystem rw or not since it affects
sysvinit in doing so properly as reported in bug #7442.

Instead update the sed expressions to match clean non-commented strings
by searching for "-o remount,rw /" and checking that's the end of the
line as well to avoid affecting possibly other remounts that a user can
have in a custom inittab.

Long-term the startup block of inittab should just move to a S00sysinit
script or similar so that rcS can pick it up directly.

Signed-off-by: Gustavo Zacarias <gustavo@zacarias.com.ar>
Reviewed-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
This commit is contained in:
Gustavo Zacarias 2014-10-22 16:36:18 -03:00 committed by Peter Korsgaard
parent bb6fae7791
commit bcb835b042
3 changed files with 4 additions and 4 deletions
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2
package/sysvinit/inittab
View File

@ -5,7 +5,7 @@
id:1:initdefault:
proc::sysinit:/bin/mount -t proc proc /proc
rwmo::sysinit:/bin/mount -o remount,rw / # REMOUNT_ROOTFS_RW
rwmo::sysinit:/bin/mount -o remount,rw /
dpts::sysinit:/bin/mkdir -p /dev/pts
dshm::sysinit:/bin/mkdir -p /dev/shm
moun::sysinit:/bin/mount -a

2
system/skeleton/etc/inittab
View File

@ -15,7 +15,7 @@
# Startup the system
null::sysinit:/bin/mount -t proc proc /proc
null::sysinit:/bin/mount -o remount,rw / # REMOUNT_ROOTFS_RW
null::sysinit:/bin/mount -o remount,rw /
null::sysinit:/bin/mkdir -p /dev/pts
null::sysinit:/bin/mkdir -p /dev/shm
null::sysinit:/bin/mount -a

4
system/system.mk
View File

@ -79,12 +79,12 @@ endif
ifeq ($(BR2_TARGET_GENERIC_REMOUNT_ROOTFS_RW),y)
# Find commented line, if any, and remove leading '#'s
define SYSTEM_REMOUNT_RW
$(SED) '/^#.*# REMOUNT_ROOTFS_RW$$/s~^#\+~~' $(TARGET_DIR)/etc/inittab
$(SED) '/^#.*-o remount,rw \/$$/s~^#\+~~' $(TARGET_DIR)/etc/inittab
endef
else
# Find uncommented line, if any, and add a leading '#'
define SYSTEM_REMOUNT_RW
$(SED) '/^[^#].*# REMOUNT_ROOTFS_RW$$/s~^~#~' $(TARGET_DIR)/etc/inittab
$(SED) '/^[^#].*-o remount,rw \/$$/s~^~#~' $(TARGET_DIR)/etc/inittab
endef
endif
TARGET_FINALIZE_HOOKS += SYSTEM_REMOUNT_RW