(old)Puppy Linux Discussion Forum

Code: Select all

#!/bin/sh

# set this to where Precise has been extracted from its SFS, no trailing slash, e.g. "/mnt/sda2/precise"
PRECISE_LOCATION="/mnt/sda2/precise"

ALLDIRS=(root dev etc proc sys tmp var lib/modules lib/firmware lib/consolefonts lib/keymaps usr/lib/gtk-2.0 usr/share/themes)

for i in "${ALLDIRS[@]}"
	do
	[[ ! -d "$PRECISE_LOCATION/$i" ]] && mkdir "$PRECISE_LOCATION/$i"
	mount -o bind "/$i" "$PRECISE_LOCATION/$i"
done

# run the application
chroot $PRECISE_LOCATION "$@"

# these may fail if network adapter or other device has been used
for i in "${ALLDIRS[@]}"
	do
	umount "$PRECISE_LOCATION/$i"
done

Code: Select all

mkdir /mnt/dir
mount /dev/sda2 /mnt/dir
mount --bind /dev /mnt/dir/dev
mount --bind /proc /mnt/dir/proc
mount --bind /sys /mnt/dir/sys
chroot /mnt/dir
exec ...
exit
umount /mnt/dir/dev
umount /mnt/dir/proc
umount /mnt/dir/sys
umount /mnt/dir

Code: Select all

#!/bin/sh

# Small bit of cunning to run much newer Puppy apps in much older Puppies, using just the files extracted from the newer Puppy's SFS
# I've used Precise throughout, but you could use others.

# Alex, 2014

# At time of writing I haven't worked out the issue with some apps that use images failing to load, but as later Minetest and Google Chrome
# work, which were the main requirements for me, I'm not hugely concerned. I think it's a GtK issue.

# This assumes you've done something like mounted the Precise ISO in Fluppy, then do:
#
# unsquashfs /mnt/+mnt+sda2+precise-5.7.1.iso/puppy_precise_5.7.1.sfs
# mv squashfs-root precise
#
# You may need updated squashfs tools for older Puppies - I took them from Carolina to use in Fluppy.

# set this to where Precise SFS has been extracted, no trailing slash, e.g. "/mnt/sda2/precise"
PRECISE_LOCATION="/mnt/sda2/precise"

# list of directories to share with the host system. Do this sensibly and change/add more based on errors from apps that are run
ALLDIRS=(root dev etc proc sys tmp var lib/modules lib/firmware lib/consolefonts lib/keymaps usr/lib/gtk-2.0 usr/share/themes usr/share/fonts)

if [[ ! "$@" ]]
	then
	echo "Use this to run a chrooted app, with e.g. /usr/bin/seamonkey"
	exit
fi

for i in "${ALLDIRS[@]}"
	do
	if 	[[ ! `mount |grep "$PRECISE_LOCATION/$i "` ]]
		then
		[[ ! -d "$PRECISE_LOCATION/$i" ]] && mkdir "$PRECISE_LOCATION/$i"
		mount -o bind "/$i" "$PRECISE_LOCATION/$i"
	fi
done

# run the application
chroot $PRECISE_LOCATION "$@"

echo -e "\nRemember, the chroot remains mounted. Do NOT delete or\nmess about with $PRECISE_LOCATION until after a reboot.\n"

exit
# below here should probably be in its own script, to close the chroot safely


# could umount afterwards, but it's probably better to have a separate script to do that in case of concurrent access.
# However, should maybe warn the user to be careful not to delete anything that's mounted.

# these may fail if any chrooted apps are still open
for i in "${ALLDIRS[@]}"
	do
	umount "$PRECISE_LOCATION/$i"
done

Code: Select all

mkdir /mnt/sdb1/dev
mkdir /mnt/sdb1/proc
mkdir /mnt/sdb1/sys
mkdir /mnt/sdb1/tmp
mkdir /mnt/sdb1/mnt

Code: Select all

mkdir /mnt/dir
mount /dev/sdb1 /mnt/dir
mount --bind /dev /mnt/dir/dev
mount --bind /proc /mnt/dir/proc
mount --bind /sys /mnt/dir/sys
chroot /mnt/dir
abiword
exit
umount /mnt/dir/dev
umount /mnt/dir/proc
umount /mnt/dir/sys
umount /mnt/dir

Code: Select all

#!/bin/sh

# Small bit of cunning to run much newer Puppy apps in much older Puppies, using just the files extracted from the newer Puppy's SFS
# I've used Precise throughout, but you could use others.

# Alex, 2014

# This assumes you've done something like mounted the Precise ISO in Fluppy, then done:
#
# cd /mnt/sda2
# unsquashfs /mnt/+mnt+sda2+precise-5.7.1.iso/puppy_precise_5.7.1.sfs
# mv squashfs-root/ precise
#
# You may need updated squashfs tools for older Puppies - I took them from Carolina to use in Fluppy.
#
# You could then manually delete the contents of any of the sub-directories that we'll be mounting on top of, but
# ONLY if the chroot isn't mounted, otherwise you'll delete the contents of the real system directories instead!

# set this to where Precise SFS has been extracted, no trailing slash, e.g. "/mnt/sda2/precise"
PRECISE_LOCATION="/mnt/sda2/precise"

# list of directories to share with the host system. Do this sensibly and change/add more based on errors from apps that are run.
# Note that if root is included, any apps installed in the chroot may also show up in the host system's PPM... there may be other issues too.
ALLDIRS=(root dev etc proc sys tmp var lib/modules lib/firmware lib/consolefonts lib/keymaps usr/lib/gtk-2.0 usr/share/themes usr/share/fonts)

# set this to 1 if you want to update the various GTK elements in /etc so that images and icons work properly (without it, you'll get red triangles
# in rox and most/all GTK apps will complain or fail). BUT as etc is mounted on the real /etc this *might* cause unwelcome effects in the host
# system, so use with care.
UPDATE_GTK=0

if [[ ! -d $PRECISE_LOCATION ]]
	then
	echo "Can't find the chroot. Read the script for info."
	exit
fi

if [[ ! "$@" ]]
	then
	echo -e "Use this to run a chrooted app, with e.g. /usr/bin/seamonkey\nOr call with -unmount_chroot as first argument to attempt dismount."
	exit
fi

unmount_chroot() {

	# unmount everything
	echo -e "\nAttempting to remove all mount-points from the chroot...\n"

	# these may fail if any chrooted apps are still open
	for i in "${ALLDIRS[@]}"
		do
		if 	[[ `mount |grep " $PRECISE_LOCATION/$i "` ]]
			then
			umount " $PRECISE_LOCATION/$i "
			if 	[[ `mount |grep " $PRECISE_LOCATION/$i "` ]]
				then
				not_unmounted="$not_unmounted\n$PRECISE_LOCATION/$i"
			fi
		fi
	done

	if [[ $not_unmounted ]]
		then
		echo -e "Problem! Couldn't unmount the following:\n\n$not_unmounted\n\nMaybe try again.\n"
		exit 1
	else
		echo -e "All mount points appear to have been successfully removed.\n$PRECISE_LOCATION is probably clean now, but be careful.\nA reboot is probably wise anyway.\n"
		exit 0
	fi
}

# are we unmounting?
if [[ "$1" == "-unmount_chroot" ]]
	then
	unmount_chroot
	exit
fi

echo -e "\nAttempting to run the chrooted application...\n"

# mount the important directories
for i in "${ALLDIRS[@]}"
	do
	if 	[[ ! `mount |grep " $PRECISE_LOCATION/$i "` ]]
		then
		[[ ! -d "$PRECISE_LOCATION/$i" ]] && mkdir "$PRECISE_LOCATION/$i"
		mount -o bind "/$i" "$PRECISE_LOCATION/$i"
	fi
done

if [[ $UPDATE_GTK ]]
	then
	# doing this once the host is loaded should fix the GtK/image errors, though might also modify the host system in unwanted ways, because
	# etc is probably mounted from /etc (see above). Taken from here: https://www.linuxquestions.org/questions/linux-software-2/gtk-errors-about-not-recognizing-png-after-yum-groupupdate-to-dev-version-of-gnome-152870/
	/usr/bin/gtk-query-immodules-2.0 >$PRECISE_LOCATION/etc/gtk-2.0/gtk.immodules 
	/usr/bin/gdk-pixbuf-query-loaders >$PRECISE_LOCATION/etc/gtk-2.0/gdk-pixbuf.loaders
	/usr/bin/gdk-pixbuf-query-loaders >$PRECISE_LOCATION/usr/lib/i386-linux-gnu/gdk-pixbuf-2.0/2.10.0/loaders.cache
fi

# run the application
chroot $PRECISE_LOCATION "$@"

# Warn the user...
echo -e "\nRemember, the chroot remains mounted. Do NOT delete or\nmess about with $PRECISE_LOCATION until after a reboot,\nunless you run this script with the -unmount_chroot argument.\n"

Code: Select all

mkdir /mnt/dir
mount /dev/sdb1 /mnt/dir
mount --bind /dev /mnt/dir/dev
mount --bind /proc /mnt/dir/proc
mount --bind /sys /mnt/dir/sys
xhost +
mkdir /mnt/dir/tmp/.X11-unix
mount --bind /tmp/.X11-unix /mnt/dir/tmp/.X11-unix
chroot /mnt/dir
abiword
exit
umount /mnt/dir/dev
umount /mnt/dir/proc
umount /mnt/dir/sys
umount /mnt/dir/tmp/.X11-unix
umount /mnt/dir

Code: Select all

chroot /mnt/dir /usr/bin/abiword

Code: Select all

#!/bin/sh
export LC_ALL=C
mkdir /mnt/sdb1
mount /dev/sdb1 /mnt/sdb1
mount --bind /dev /mnt/sdb1/dev
mount --bind /proc /mnt/sdb1/proc
mount --bind /sys /mnt/sdb1/sys
xhost +
mount --bind /tmp/.X11-unix /mnt/sdb1/tmp/.X11-unix
chroot /mnt/sdb1 /usr/bin/firefox
umount /mnt/sdb1/proc
umount /mnt/sdb1/sys
umount /mnt/sdb1/tmp/.X11-unix
killall dbus-launch
sleep 10
umount /mnt/sdb1/dev
umount /mnt/sdb1
xhost -