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matter-chroot/README.md

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+# matter-chroot 
+This script is used for changing system root during installation 
+and configuration.
+
+### Usage
+To use the `matter-chroot` script, specify a target directory.
+In a normal installation, this directory would most likely 
+be your mount directory:
+```bash
+matter-chroot /mnt
+```
+You can also specify a command, if no command is specified 
+then script will run `/bin/bash --login`:
+```bash
+matter-chroot /mnt ls -la 
+```

matter-chroot/main.sh

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+#!/bin/bash
+
+# matter-chroot | Matterlinux Chroot Script 
+# Copyright (C) 2023 Matterlinux 
+
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+############################
+## logging functions/vars ##
+############################
+RED="\e[31m"
+BOLD="\e[1m"
+RESET="\e[0m"
+
+error() {
+  echo -e "$BOLD$RED>>>$RESET$BOLD $1$RESET"
+  exit 1
+}
+
+####################
+## util functions ##
+####################
+chrt() {
+  mount --bind /dev $TARGET/dev
+  mount --bind /dev/pts $TARGET/dev/pts
+  mount -t proc proc $TARGET/proc
+  mount -t sysfs sysfs $TARGET/sys
+  mount -t tmpfs tmpfs $TARGET/run
+
+  if [ -h $TARGET/dev/shm ]; then
+    mkdir -p $TARGET/$(readlink $TARGET/dev/shm)
+  else
+    mount -t tmpfs -o nosuid,nodev tmpfs $TARGET/dev/shm
+  fi
+
+  local prompt='\e[1m\e[31m(chroot)\e[0m\e[1m \u@\h:\w#\e[0m '
+  chroot $TARGET /usr/bin/env -i        \
+    HOME=/root                          \
+    TERM="$TERM"                        \
+    PS1="$prompt"                       \
+    PATH=/usr/bin:/usr/sbin             \
+    $@
+
+  umount $TARGET/dev/pts
+  mountpoint -q $TARGET/dev/shm && umount $TARGET/dev/shm
+  umount $TARGET/dev
+  umount $TARGET/run
+  umount $TARGET/proc
+  umount $TARGET/sys
+}
+
+#################
+## main script ##
+#################
+if [ $# -eq 0 ]; then
+  error "Please specify a directory"
+fi
+
+TARGET=$(realpath $1) 
+if [ -f $TARGET ]; then
+  error "$TARGET is a file"
+fi
+
+if [ ! -d $TARGET ]; then
+  error "$TARGET does not exist"
+fi 
+
+if [ $# -gt 1 ]; then
+  chrt ${@:2}
+  exit 0
+fi
+
+chrt bash --login