gparted/gparted.in
Curtis Gedak 4acb8e4fbb If available use udisks2-inhibit to prevent automounting (#745349)
In order to prevent potential corruption of newly created file systems,
when available use udisks2-inhibit with gpartedbin execution to prevent
automounting.

Original report:

Xubuntu install fail due partition auto mount defeats Gparted
https://bugs.launchpad.net/ubuntu/+source/thunar/+bug/1078445

Some GNU/Linux distributions use the udisks2 "udisksd" daemon and have
udisks2-inhibit at a known location.  The known location is not in the
default PATH environment variable.

One known distribution that matches this criteria is xubuntu 14.04.

Interestingly neither kubuntu 14.04 nor ubuntu 14.04 appear to have the
udisks2 "udisksd" daemon running and do not suffer from this specific
automounting problem.

Bug 745349 - gparted wrapper script needs updated for udisks2
2015-03-12 11:49:43 +00:00

208 lines
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#!/bin/sh
# Name: gparted
# Purpose: Perform appropriate startup of GParted executable gpartedbin.
#
# The purpose of these startup methods is to prevent
# devices from being automounted, and to ensure only one
# instance of GParted is running. File system problems can
# occur if devices are mounted prior to the completion of
# GParted's operations, or if multiple partition editing
# tools are in use concurrently.
#
# Copyright (C) 2008, 2009, 2010, 2013, 2015 Curtis Gedak
#
# This file is part of GParted.
#
# GParted 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 2 of the License, or
# (at your option) any later version.
#
# GParted 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 GParted. If not, see <http://www.gnu.org/licenses/>.
#
#
# Only permit one instance of GParted to execute at a time
#
if test "z`ps -e | grep gpartedbin`" != "z"; then
echo "The process gpartedbin is already running."
echo "Only one gpartedbin process is permitted."
exit 1
fi
#
# Search PATH to determine if systemctl program can be found
# and if appropriate daemon is running.
#
HAVE_SYSTEMCTL=no
for k in '' `echo "$PATH" | sed 's,:, ,g'`; do
if test -x "$k/systemctl"; then
if test "z`ps -e | grep systemd`" != "z"; then
HAVE_SYSTEMCTL=yes
break
fi
fi
done
#
# Check if udisks2-inhibit exists in known location
# and if appropriate daemon is running.
#
HAVE_UDISKS2_INHIBIT=no
if test -x "/usr/lib/udisks2/udisks2-inhibit"; then
if test "z`ps -e | grep 'udisksd'`" != "z"; then
HAVE_UDISKS2_INHIBIT=yes
fi
fi
#
# Search PATH to determine if udisks program can be found
# and if appropriate daemon is running.
#
HAVE_UDISKS=no
for k in '' `echo "$PATH" | sed 's,:, ,g'`; do
if test -x "$k/udisks"; then
if test "z`ps -e | grep udisks-daemon`" != "z"; then
HAVE_UDISKS=yes
break
fi
fi
done
#
# Search PATH to determine if devkit-disks program can be found
# and if appropriate daemon is running.
# On December 1, 2009, devkit-disks was named udisks.
#
HAVE_DEVKIT_DISKS=no
for k in '' `echo "$PATH" | sed 's,:, ,g'`; do
if test -x "$k/devkit-disks"; then
if test "z`ps -e | grep devkit-disks-da`" != "z"; then
HAVE_DEVKIT_DISKS=yes
break
fi
fi
done
#
# Search PATH to determine if hal-lock program can be found
# and if appropriate daemon is running.
#
HAVE_HAL_LOCK=no
for k in '' `echo "$PATH" | sed 's,:, ,g'`; do
if test -x "$k/hal-lock"; then
if test "z`ps -e | grep hald`" != "z"; then
HAVE_HAL_LOCK=yes
break
fi
fi
done
#
# Define base command for executing GParted
#
BASE_CMD="@installdir@/gpartedbin $*"
#
# If no root privileges, then invoke gpartedbin directly
# so that a graphical warning is displayed.
# Otherwise udisks, devkit-disks, or hal-lock in the later
# invocation may prevent gpartedbin from starting and hence
# the user will not see a graphical warning.
#
if test "x`id -u`" != "x0"; then
echo "Root privileges are required for running gparted."
$BASE_CMD
exit 1
fi
#
# Use systemctl to prevent automount by masking currently unmasked mount points
#
if test "x$HAVE_SYSTEMCTL" = "xyes"; then
MOUNTLIST=`systemctl list-units --full --all -t mount --no-legend \
| grep -v masked | cut -f1 -d' ' \
| egrep -v '^(dev-hugepages|dev-mqueue|proc-sys-fs-binfmt_misc|run-user-.*-gvfs|sys-fs-fuse-connections|sys-kernel-config|sys-kernel-debug)'`
systemctl --runtime mask --quiet -- $MOUNTLIST
fi
#
# Create temporary blank overrides for all udev rules which automatically
# start Linux Software RAID array members.
#
# Udev stores volatile / temporary runtime rules in directory /run/udev/rules.d.
# Older versions use /dev/.udev/rules.d instead, and even older versions don't
# have such a directory at all. Volatile / temporary rules are use to override
# default rules from /lib/udev/rules.d. (Permanent local administrative rules
# in directory /etc/udev/rules.d override all others). See udev(7) manual page
# from various versions of udev for details.
#
# Default udev rules containing mdadm to incrementally start array members are
# found in 64-md-raid.rules and/or 65-md-incremental.rules, depending on the
# distribution and age. The rules may be commented out or not exist at all.
#
UDEV_TEMP_MDADM_RULES='' # List of temporary override rules files.
for udev_temp_d in /run/udev /dev/.udev; do
if test -d "$udev_temp_d"; then
test ! -d "$udev_temp_d/rules.d" && mkdir "$udev_temp_d/rules.d"
udev_mdadm_rules=`egrep -l '^[^#].*mdadm (-I|--incremental)' /lib/udev/rules.d/*.rules 2> /dev/null`
UDEV_TEMP_MDADM_RULES=`echo "$udev_mdadm_rules" | sed 's,^/lib/udev,'"$udev_temp_d"','`
break
fi
done
for rule in $UDEV_TEMP_MDADM_RULES; do
touch "$rule"
done
#
# Use udisks2-inhibit if udisks2-inhibit exists and deamon running.
# Else use both udisks and hal-lock for invocation if both binaries exist and both
# daemons are running.
# Else use udisks if binary exists and daemon is running.
# Else use both devkit-disks and hal-lock for invocation if both binaries exist
# and both of the daemons are running.
# Else use devkit-disks if binary exists and daemon is running.
# Otherwise use hal-lock for invocation if binary exists and daemon is running.
# If the above checks fail then simply run gpartedbin.
#
if test "x$HAVE_UDISKS2_INHIBIT" = "xyes"; then
/usr/lib/udisks2/udisks2-inhibit $BASE_CMD
elif test "x$HAVE_UDISKS" = "xyes" && test "x$HAVE_HAL_LOCK" = "xyes"; then
udisks --inhibit -- \
hal-lock --interface org.freedesktop.Hal.Device.Storage --exclusive \
--run "$BASE_CMD"
elif test "x$HAVE_UDISKS" = "xyes"; then
udisks --inhibit -- $BASE_CMD
elif test "x$HAVE_DEVKIT_DISKS" = "xyes" && test "x$HAVE_HAL_LOCK" = "xyes"; then
devkit-disks --inhibit -- \
hal-lock --interface org.freedesktop.Hal.Device.Storage --exclusive \
--run "$BASE_CMD"
elif test "x$HAVE_DEVKIT_DISKS" = "xyes"; then
devkit-disks --inhibit -- $BASE_CMD
elif test "x$HAVE_HAL_LOCK" = "xyes"; then
hal-lock --interface org.freedesktop.Hal.Device.Storage --exclusive \
--run "$BASE_CMD"
else
$BASE_CMD
fi
#
# Clear any temporary override udev rules used to stop udev automatically
# starting Linux Software RAID array members.
#
for rule in $UDEV_TEMP_MDADM_RULES; do
rm -f "$rule"
done
#
# Use systemctl to restore that status of any mount points changed above
#
if test "x$HAVE_SYSTEMCTL" = "xyes"; then
systemctl --runtime unmask --quiet -- $MOUNTLIST
fi