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#!/bin/sh
# Set up device nodes and /servers translators.
#
# Use cases:
# - from d-i's /libexec/runsystem, to create a minimal set of device nodes
# and translators for the installer environment;
# - from debootstrap on initial installation, to create device and server
# nodes before /dev and /servers are firmlinked to the host system.
# - from hurd.postinst, on upgrade, where only non-existant nodes should be
# created, and the other ones should be left alone.
PATH=/bin:/sbin:/usr/bin:/usr/sbin
export PATH
usage () {
cat >&2 <<EOU
Usage: $0 [OPTIONS]
Set up device nodes and /servers translators.
-k, --keep-active Keep active translators running
-K, --keep-all Don't even set passive translators on existing files
-m, --minimal Create a minimal subset of nodes only
-p, --parted Prefer parted stores for partition devices
At least one of -k or -K must be given.
EOU
}
# Parse command-line arguments
REPLACE=
MDFLAGS=
MINIMAL=
while [ $# -gt 0 ]; do
case "$1" in
-k|--keep-active)
MDFLAGS="$MDFLAGS -k"
REPLACE=y
shift;;
-K|--keep-all)
MDFLAGS="$MDFLAGS -K"
REPLACE=n
shift;;
-m|--minimal)
MINIMAL=y
shift;;
-p|--parted)
MDFLAGS="$MDFLAGS -p"
shift;;
*)
usage
exit 1;;
esac
done
if [ -z "$REPLACE" ]; then
usage
exit 1
fi
# Usage: foldsubst <pat> xxxx yyyy zzzz ...
# <pat> is substituted for every character of xxxx with sed, the character in
# question being accessible as a '\0' in <pat>, and the result is used as the
# new pattern to handle the remaining arguments.
foldsubst () {
[ "$2" ] || { echo $1; return; }
expanded=$(echo "$2" | sed "s/./ $1/g"); shift 2
foldsubst "$expanded" $@;
}
# Verbosely attach a translator.
st () {
node=$1
cmdl=$2
name=${3:-$cmdl}
echo -n " $name"
if [ "$REPLACE" = y ] || [ ! -e $1 ]; then
# Work around a bug in ext2fs, which crashes if a non-empty
# file is turned into a symlink through settrans, by clearing
# the passive translator first.
settrans -ck $node
settrans -ck $node /hurd/$cmdl
fi
}
# Verbosely create device nodes, with some help from foldsubst.
md () {
pattern=$1; shift
sedrepl=$(echo $pattern | sed -e 's/X/\\0/' -e 's/Y/\\\\0/')
devs=$(foldsubst "$sedrepl" $@)
echo -n " $pattern"
/sbin/MAKEDEV $MDFLAGS $devs
}
echo -n "Setting up translators:"
cd /servers
mkdir -p socket
st exec exec
st default-pager proxy-defpager
st socket/1 pflocal
st socket/local 'symlink 1' '(+link)'
st socket/2 pfinet
st socket/inet 'symlink 2' '(+link)'
st /proc procfs
if [ -z "$MINIMAL" ]; then
st password password
st crash-kill 'crash --kill' crash-kill
st crash-suspend 'crash --suspend' crash-suspend
st crash-dump-core 'crash --dump-core' crash-dump-core
st crash 'symlink crash-kill' crash
fi
echo .
echo -n "Creating device nodes:"
cd /dev
md fd
md std
md vcs
md hdX 0123
md hdXsY 0123 12345678
md sdX 0123
md sdXsY 0123 12345678
if [ "$MINIMAL" ]; then
md loopX 0123
md ttyX 1234
md ptypX 0123
else
md loopX 01234567
md ttyX 123456
md ptyp
md ptyq
md comX 0123
md lprX 0123
st kbd 'symlink cons/kbd' kbd
st mouse 'symlink cons/mouse' mouse
fi
echo .
|
