sysvinit: add an inittab entry to activate swap

There is a call to swapoff in the shutdown sequence, so call "swapon -a"
on startup. As stated in the swapon man page,

   All devices marked as "swap" in /etc/fstab are made available, except
   for those with the "noauto" option. Devices that are already being
   used as swap are silently skipped.

So even if the system has some init script to start/stop swap (e.g. from
a rootfs ovelay) calling swapon/swapoff would be harmless.

Signed-off-by: Carlos Santos <casantos@datacom.com.br>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

diff --git a/package/sysvinit/inittab b/package/sysvinit/inittab
index 2ca253ad6cd2c69c4ea1af38c1ac5edb8303d86e..a31471031fdd78d10e1133dd3ff98e57bb55fe1a 100644 (file)
--- a/package/sysvinit/inittab
+++ b/package/sysvinit/inittab
@@ -7,7 +7,8 @@ id:3:initdefault:
 si0::sysinit:/bin/mount -t proc proc /proc
 si1::sysinit:/bin/mount -o remount,rw /
 si2::sysinit:/bin/mkdir -p /dev/pts /dev/shm
-si4::sysinit:/bin/mount -a
+si3::sysinit:/bin/mount -a
+si4::sysinit:/sbin/swapon -a
 si5::sysinit:/bin/ln -sf /proc/self/fd /dev/fd 2>/dev/null
 si6::sysinit:/bin/ln -sf /proc/self/fd/0 /dev/stdin 2>/dev/null
 si7::sysinit:/bin/ln -sf /proc/self/fd/1 /dev/stdout 2>/dev/null