Commit Graph

6 Commits

Author SHA1 Message Date
Carlos Santos
d524cc7d9d busybox: 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>
2018-06-12 14:56:07 +02:00
Florian La Roche
13dbe73782 busybox: reduce number of mkdir calls in inittab
The default busybox inittab does two separate mkdir calls
to create /dev/pts and /dev/shm. Reduce this to call mkdir
only once for both directories.

Signed-off-by: Florian La Roche <F.LaRoche@pilz.de>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
2018-06-05 18:50:22 +02:00
Jörg Krause
456ea9871e busybox: add /dev/std{in, out, err} symlinks to inittab
Some applications, e.g. bashs process subsitution feature, rely on the
convention of `/dev/fd` being a symbolic link to `/proc/self/fd`.

This symbolic link and his companions `/dev/std*` are created by (e)udev [1],
but not by mdev, resulting in the following error when using the following
expression:

```
bash: /dev/fd/62: No such file or directory
```

For the sake of simplicity, lets fix this by creating the symlinks in inittab.
It is only really needed if eudev isn't used, but it doesn't really hurt to
create them even if eudev will recreate them afterwards.

Note, that we do not create the symlink `/dev/core` as `/proc/kcore` is
not available on all platforms, e.g. ARM, and the feature is not much
appreciated [2].

[1] 8943501993/src/shared/dev-setup.c (L35-L40)
[2] https://lwn.net/Articles/45315/

[Peter: redirect output (errors) to /dev/null for ro rootfs]
Signed-off-by: Jörg Krause <joerg.krause@embedded.rocks>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
2018-05-01 21:53:45 +02:00
lothar felten
fb4c041cfb inittab: disable reboot by ctrl-alt-del
Most embedded systems do not have a keyboard.
If a keyboard is attached afterwards (e.g. to an accessible USB host port)
this allows the user to reboot the system by pressing Ctrl-Alt-Del, which
might not be desired.

Signed-off-by: lothar felten <felten@vaxnet.de>
Acked-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
2016-01-03 23:16:08 +01:00
Luca Ceresoli
246131a593 busybox: inittab: don't redirect output to /dev/null
Several inittab steps are redirected to /dev/null. This means any error or
warning printed by these crucial commands would be hidden from the user.
There is no evident reason to hide this output, so stop doing that.

Suggested by Thomas Petazzoni:
http://lists.busybox.net/pipermail/buildroot/2015-September/139146.html

Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Acked-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
2015-10-03 15:29:50 +02:00
Maxime Hadjinlian
89d39fc7a3 initscripts: new package
The folder init.d is currently installed by default since it's part of
our skeleton.
This patch creates a package out of it and make busybox/sysvinit depends
on it.

This way, if you chose another init, you don't end up with a useless
init.d folder.

[Thomas:
  - make the initscripts package selectable via a hidden bool
  - remove some unneeded changes in sysvinit.mk.]

Signed-off-by: Maxime Hadjinlian <maxime.hadjinlian@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
2015-07-14 01:51:52 +02:00