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Add -d param to optionally support devtmpfs 

The main intention of this patch is to take advantage of
/dev/loop-control and loop devices.

Signed-off-by: Gerardo Exequiel Pozzi <vmlinuz386@yahoo.com.ar>
Signed-off-by: Pierre Schmitz <pierre@archlinux.de>
This commit is contained in:
Gerardo Exequiel Pozzi 2012-02-26 20:02:26 -03:00 committed by Pierre Schmitz
parent cecd257786
commit 2d9a99ee15
1 changed files with 22 additions and 15 deletions
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37
mkarchroot.in
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@ -13,6 +13,7 @@ m4_include(lib/common.sh)
FORCE='n'
RUN=''
NOCOPY='n'
USE_DEVTMPFS='n'
working_dir=''
@ -29,11 +30,12 @@ usage() {
echo ' -M <file> Location of a makepkg config file'
echo ' -n Do not copy config files into the chroot'
echo ' -c <dir> Set pacman cache. Default: /var/cache/pacman/pkg'
echo ' -d Use devtmpfs instead of minimal /dev (tmpfs)'
echo ' -h This message'
exit 1
}
while getopts 'r:ufnhC:M:c:' arg; do
while getopts 'r:ufnhC:M:c:d' arg; do
case "${arg}" in
r) RUN="$OPTARG" ;;
u) RUN='/bin/sh -c "pacman -Syu --noconfirm && (pacman -Qqu >/dev/null && pacman -Su --noconfirm || exit 0)"' ;;
@ -42,6 +44,7 @@ while getopts 'r:ufnhC:M:c:' arg; do
M) makepkg_conf="$OPTARG" ;;
n) NOCOPY='y' ;;
c) cache_dir="$OPTARG" ;;
d) USE_DEVTMPFS="y" ;;
h|?) usage 0 ;;
*) error "invalid argument '${arg}'"; usage ;;
esac
@ -90,20 +93,24 @@ chroot_mount() {
mount -t proc proc "${working_dir}/proc"
[[ -e "${working_dir}/dev" ]] || mkdir "${working_dir}/dev"
mount -t tmpfs dev "${working_dir}/dev" -o mode=0755,size=10M,nosuid
mknod -m 666 "${working_dir}/dev/null" c 1 3
mknod -m 666 "${working_dir}/dev/zero" c 1 5
mknod -m 600 "${working_dir}/dev/console" c 5 1
mknod -m 644 "${working_dir}/dev/random" c 1 8
mknod -m 644 "${working_dir}/dev/urandom" c 1 9
mknod -m 666 "${working_dir}/dev/tty" c 5 0
mknod -m 666 "${working_dir}/dev/tty0" c 4 0
mknod -m 666 "${working_dir}/dev/full" c 1 7
ln -s /proc/kcore "${working_dir}/dev/core"
ln -s /proc/self/fd "${working_dir}/dev/fd"
ln -s /proc/self/fd/0 "${working_dir}/dev/stdin"
ln -s /proc/self/fd/1 "${working_dir}/dev/stdout"
ln -s /proc/self/fd/2 "${working_dir}/dev/stderr"
if [[ ${USE_DEVTMPFS} = "y" ]]; then
mount -t devtmpfs dev "${working_dir}/dev" -o mode=0755,nosuid
else
mount -t tmpfs dev "${working_dir}/dev" -o mode=0755,size=10M,nosuid
mknod -m 666 "${working_dir}/dev/null" c 1 3
mknod -m 666 "${working_dir}/dev/zero" c 1 5
mknod -m 600 "${working_dir}/dev/console" c 5 1
mknod -m 644 "${working_dir}/dev/random" c 1 8
mknod -m 644 "${working_dir}/dev/urandom" c 1 9
mknod -m 666 "${working_dir}/dev/tty" c 5 0
mknod -m 666 "${working_dir}/dev/tty0" c 4 0
mknod -m 666 "${working_dir}/dev/full" c 1 7
ln -s /proc/kcore "${working_dir}/dev/core"
ln -s /proc/self/fd "${working_dir}/dev/fd"
ln -s /proc/self/fd/0 "${working_dir}/dev/stdin"
ln -s /proc/self/fd/1 "${working_dir}/dev/stdout"
ln -s /proc/self/fd/2 "${working_dir}/dev/stderr"
fi
[[ -e "${working_dir}/dev/shm" ]] || mkdir "${working_dir}/dev/shm"
mount -t tmpfs shm "${working_dir}/dev/shm" -o nodev,nosuid,size=128M