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eac2fdd88d
Enable tty0 and friends as console and start getty on them. Signed-off-by: Rolf Neugebauer <rolf.neugebauer@docker.com>
46 lines
878 B
Bash
Executable File
46 lines
878 B
Bash
Executable File
#!/bin/sh
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setup_console() {
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tty=${1%,*}
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speed=${1#*,}
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inittab="$2"
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securetty="$3"
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line=
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term="linux"
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[ "$speed" = "$1" ] && speed=115200
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case "$tty" in
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ttyS*|ttyAMA*|ttyUSB*|ttyMFD*)
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line="-L"
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term="vt100"
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;;
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tty?)
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line=""
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speed="38400"
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term=""
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;;
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esac
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# skip consoles already in inittab
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grep -q "^$tty:" "$inittab" && return
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echo "$tty::once:cat /etc/issue" >> "$inittab"
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echo "$tty::respawn:/sbin/getty -n -l /bin/sh $line $speed $tty $term" >> "$inittab"
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if ! grep -q -w "$tty" "$securetty"; then
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echo "$tty" >> "$securetty"
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fi
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}
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/bin/mount -t tmpfs tmpfs /mnt
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/bin/cp -a / /mnt 2>/dev/null
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/bin/mount -t proc -o noexec,nosuid,nodev proc /proc
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for opt in $(cat /proc/cmdline); do
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case "$opt" in
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console=*)
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setup_console ${opt#console=} /mnt/etc/inittab /mnt/etc/securetty;;
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esac
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done
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exec /bin/busybox switch_root /mnt /sbin/init
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