Add system chroot function

1 files changed, 16 insertions, 0 deletions

diff --git a/mkshrc b/mkshrc
index 5306675..37e51de 100644
--- a/mkshrc
+++ b/mkshrc
@@ -328,6 +328,22 @@ startup_zram() {
 	swapon /dev/zram0
 
 }
+# System setup `chroot`, useful mainly on Linux
+syschroot() {
+	CHDIR=$1
+	PROG=$2
+	CUR_PS1="$PS1"
+	PS1="(CHROOT) # "
+	mount -o bind /dev $CHDIR/dev
+	mount -o bind /sys $CHDIR/sys
+	mount -o bind /proc $CHDIR/proc
+	if [ "$PROG" = "/bin/bash" ] ; then
+		PS1="(CHROOT) [ \u@\h \w ] # "
+	fi
+	chroot $CHDIR $PROG
+	umount $CHDIR/dev $CHDIR/sys $CHDIR/proc
+	PS1="$CUR_PS1"
+}
 # Sometimes useful function for unmounting a chroot dir on Linux
 umount_recursive() {
 	case $1 in