mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-22 06:57:57 +00:00
32 lines
766 B
Bash
32 lines
766 B
Bash
#!/bin/sh
|
|
# Copyright (C) 2006-2010 OpenWrt.org
|
|
# Copyright (C) 2010 Vertical Communications
|
|
|
|
choose_console() {
|
|
# the shell really doesn't like having stdin/out closed
|
|
# that's why we use /dev/pty/m0 and m1 (or equivalent) as replacement
|
|
# for /dev/console if there's no serial console available
|
|
|
|
if grep -q devfs /proc/filesystems; then
|
|
M0=/dev/pty/m0
|
|
M1=/dev/pty/m1
|
|
M2=/dev/pty/m1
|
|
elif [ -x /sbin/hotplug2 ]; then
|
|
M0=/dev/ptmx
|
|
M1=/dev/ptmx
|
|
M2=/dev/ptmx
|
|
elif [ -x /sbin/udevd ]; then
|
|
M0=/dev/pty/ptmx
|
|
M1=/dev/pty/ptmx
|
|
M2=/dev/pty/ptmx
|
|
fi
|
|
dd if=/dev/console of=/dev/null bs=1 count=0 >/dev/null 2>/dev/null && {
|
|
M0=/dev/console
|
|
M1=/dev/console
|
|
M2=/dev/console
|
|
}
|
|
}
|
|
|
|
boot_hook_add preinit_essential choose_console
|
|
|