pacstrap: use --sysroot instead of --root

Does not seem to work, there's no internet connection in the chroot

common

@@ -88,6 +88,7 @@ chroot_setup() {
   chroot_add_mount shm "$1/dev/shm" -t tmpfs -o mode=1777,nosuid,nodev &&
   chroot_add_mount run "$1/run" -t tmpfs -o nosuid,nodev,mode=0755 &&
   chroot_add_mount tmp "$1/tmp" -t tmpfs -o mode=1777,strictatime,nodev,nosuid
+  chroot_maybe_add_mount "(( hostcache ))" /var/cache/pacman/pkg "$1/var/cache/pacman/pkg" -o bind
 }
 
 chroot_teardown() {

pacstrap.in

@@ -76,32 +76,25 @@ shift $(( OPTIND - 1 ))
 newroot=$1; shift
 pacman_args=("${@:-base}")
 
-if (( ! hostcache )); then
-  pacman_args+=(--cachedir="$newroot/var/cache/pacman/pkg")
-fi
-
 if (( ! interactive )); then
   pacman_args+=(--noconfirm)
 fi
 
-if [[ $pacman_config ]]; then
-  pacman_args+=(--config="$pacman_config")
-fi
-
 [[ -d $newroot ]] || die "%s is not a directory" "$newroot"
 
 # create obligatory directories
 msg 'Creating install root at %s' "$newroot"
-mkdir -m 0755 -p "$newroot"/var/{cache/pacman/pkg,lib/pacman,log} "$newroot"/{dev,run,etc}
+mkdir -m 0755 -p "$newroot"/var/{cache/pacman/pkg,lib/pacman,log} "$newroot"/{dev,run,etc/pacman.d}
 mkdir -m 1777 -p "$newroot"/tmp
 mkdir -m 0555 -p "$newroot"/{sys,proc}
 
 # mount API filesystems
 chroot_setup "$newroot" || die "failed to setup chroot %s" "$newroot"
 
-msg 'Installing packages to %s' "$newroot"
-if ! pacman -r "$newroot" -Sy "${pacman_args[@]}"; then
-  die 'Failed to install packages to new root'
+if [[ $pacman_config ]]; then
+  pacman-conf --config "$pacman_config" "$newroot/tmp/pacman.conf"
+else
+  pacman-conf > "$newroot/tmp/pacman.conf"
 fi
 
 if (( copykeyring )); then
@@ -116,4 +109,9 @@ if (( copymirrorlist )); then
   cp -a /etc/pacman.d/mirrorlist "$newroot/etc/pacman.d/"
 fi
 
+msg 'Installing packages to %s' "$newroot"
+if ! pacman --sysroot "$newroot" --config /tmp/pacman.conf -Sy "${pacman_args[@]}"; then
+  die 'Failed to install packages to new root'
+fi
+
 # vim: et ts=2 sw=2 ft=sh: