On Mon, 13 Jun 2016 11:02:12 +0200 Didier Kryn <k...@in2p3.fr> wrote:
> Le 13/06/2016 08:16, Edward Bartolo a écrit : > > Hi, > > > > This is a question about implementing a minimal OS initiator. If > > DNG's admins/mods deem this email is misplaced please delete it or > > ignore it. > > > > Till now, I implemented a little OS initiator that calls "/bin/bash" > > and then enters an infinite while loop that does nothing. The loop's > > purpose is to prevent PID 1 from exiting. > > > > I would like to have my OS initiator: > > a) initiate a terminal before launching it. /sbin/init launches six > > such terminals tty1..tty6 > > b) prevent this terminal from closing > > c) do some basic child process management > > Here's something you could try: > > mount -t proc proc /proc > mount -t sysfs sys /sys > mount -t devtmpfs dev /dev # or mount /dev as tmpfs and start > hotplugger (udev/eudev/vdev/mdev) > mount -t tmpfs run /run > mknod -m 0600 /dev/console c 5 1 > mknod -m 0660 /dev/tty1 c 4 1 > while ( true ) > do > printf 'Entering interactive shell\n' > setsid /bin/sh -c 'exec bash </dev/tty1 >/dev/tty1 2>&1' > done; > > Have fun. > Didier And later, when Edward makes a real PID1, everything before the line about /dev/console comprises the first few statements of the /etc/rc shellscript. SteveT Steve Litt June 2016 featured book: Troubleshooting: Why Bother? http://www.troubleshooters.com/twb _______________________________________________ Dng mailing list Dng@lists.dyne.org https://mailinglists.dyne.org/cgi-bin/mailman/listinfo/dng
