mirror of
git://sourceware.org/git/lvm2.git
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237 lines
5.2 KiB
Bash
237 lines
5.2 KiB
Bash
# Put lvm-related utilities here.
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# This file is sourced from test-lib.sh.
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# Copyright (C) 2007, 2008 Red Hat, Inc. All rights reserved.
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#
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# This copyrighted material is made available to anyone wishing to use,
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# modify, copy, or redistribute it subject to the terms and conditions
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# of the GNU General Public License v.2.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software Foundation,
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# Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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export LVM_SUPPRESS_FD_WARNINGS=1
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ME=$(basename "$0")
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warn() { echo >&2 "$ME: $@"; }
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unsafe_losetup_()
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{
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f=$1
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test -n "$G_dev_" \
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|| error "Internal error: unsafe_losetup_ called before init_root_dir_"
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# Iterate through $G_dev_/loop{,/}{0,1,2,3,4,5,6,7,8,9}
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for slash in '' /; do
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for i in 0 1 2 3 4 5 6 7 8 9; do
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dev=$G_dev_/loop$slash$i
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losetup $dev > /dev/null 2>&1 && continue;
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losetup "$dev" "$f" > /dev/null && { echo "$dev"; return 0; }
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break
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done
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done
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return 1
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}
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loop_setup_()
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{
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file=$1
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dd if=/dev/zero of="$file" bs=1M count=1 seek=1000 > /dev/null 2>&1 \
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|| { warn "loop_setup_ failed: Unable to create tmp file $file"; return 1; }
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# NOTE: this requires a new enough version of losetup
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dev=$(unsafe_losetup_ "$file" 2>/dev/null) \
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|| { warn "loop_setup_ failed: Unable to create loopback device"; return 1; }
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echo "$dev"
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return 0;
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}
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compare_two_fields_()
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{
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local cmd1=$1;
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local obj1=$2;
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local field1=$3;
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local cmd2=$4;
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local obj2=$5;
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local field2=$6;
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local val1;
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local val2;
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val1=$($cmd1 --noheadings -o $field1 $obj1)
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val2=$($cmd2 --noheadings -o $field2 $obj2)
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if test "$verbose" = "t"
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then
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echo "compare_two_fields_ $obj1($field1): $val1 $obj2($field2): $val2"
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fi
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test $val1 = $val2
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}
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compare_vg_field_()
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{
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local vg1=$1;
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local vg2=$2;
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local field=$3;
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local val1;
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local val2;
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val1=$(vgs --noheadings -o $field $vg1)
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val2=$(vgs --noheadings -o $field $vg2)
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if test "$verbose" = "t"
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then
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echo "compare_vg_field_ VG1: $val1 VG2: $val2"
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fi
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test $val1 = $val2
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}
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get_pv_field() {
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local pv=$1
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local field=$2
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local value
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pvs --noheading -o $field $pv | sed 's/^ *//'
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}
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get_vg_field() {
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local vg=$1
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local field=$2
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local value
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vgs --noheading -o $field $vg | sed 's/^ *//'
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}
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get_lv_field() {
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local lv=$1
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local field=$2
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local value
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lvs --noheading -o $field $lv | sed 's/^ *//'
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}
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check_vg_field_()
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{
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local vg=$1;
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local field=$2;
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local expected=$3;
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local actual;
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actual=$(vgs --noheadings -o $field $vg)
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if test "$verbose" = "t"
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then
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echo "check_vg_field_ VG=$vg, field=$field, actual=$actual, expected=$expected"
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fi
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test $actual = $expected
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}
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check_pv_field_()
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{
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local pv=$1;
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local field=$2;
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local expected=$3;
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local actual;
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actual=$(pvs --noheadings -o $field $pv)
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if test "$verbose" = "t"
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then
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echo "check_pv_field_ PV=$pv, field=$field, actual=$actual, expected=$expected"
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fi
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test $actual = $expected
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}
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check_lv_field_()
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{
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local lv=$1;
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local field=$2;
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local expected=$3;
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local actual;
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actual=$(lvs --noheadings -o $field $lv)
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if test "$verbose" = "t"
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then
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echo "check_lv_field_ LV=$lv, field=$field, actual=$actual, expected=$expected"
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fi
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test $actual = $expected
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}
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vg_validate_pvlv_counts_()
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{
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local local_vg=$1
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local num_pvs=$2
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local num_lvs=$3
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local num_snaps=$4
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lvs -a -o+devices $local_vg
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check_vg_field_ $local_vg pv_count $num_pvs &&
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check_vg_field_ $local_vg lv_count $num_lvs &&
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check_vg_field_ $local_vg snap_count $num_snaps
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}
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dmsetup_has_dm_devdir_support_()
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{
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# Detect support for the envvar. If it's supported, the
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# following command will fail with the expected diagnostic.
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out=$(DM_DEV_DIR=j dmsetup version 2>&1)
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test "$?:$out" = "1:Invalid DM_DEV_DIR envvar value." -o \
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"$?:$out" = "1:Invalid DM_DEV_DIR environment variable value."
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}
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# set up private /dev and /etc
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init_root_dir_()
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{
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test -n "$test_dir_rand_" \
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|| error "Internal error: called init_root_dir_ before" \
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"defining \$test_dir_rand_"
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# Define these two globals.
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G_root_=$test_dir_rand_/root
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G_dev_=$G_root_/dev
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export LVM_SYSTEM_DIR=$G_root_/etc
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export DM_DEV_DIR=$G_dev_
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# Only the first caller does anything.
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mkdir -p $G_root_/etc $G_dev_ $G_dev_/mapper $G_root_/lib
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for i in 0 1 2 3 4 5 6 7; do
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mknod $G_root_/dev/loop$i b 7 $i
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done
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for i in $abs_top_builddir/daemons/dmeventd/plugins/*/*.so
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do
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# NOTE: This check is necessary because the loop above will give us the value
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# "$abs_top_builddir/daemons/dmeventd/plugins/*/*.so" if no files ending in 'so' exist.
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# This is the best way I could quickly determine to skip over this bogus value.
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if [ -f $i ]; then
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echo Setting up symlink from $i to $G_root_/lib
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ln -s $i $G_root_/lib
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fi
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done
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cat > $G_root_/etc/lvm.conf <<-EOF
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devices {
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dir = "$G_dev_"
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scan = "$G_dev_"
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filter = [ "a/loop/", "a/mirror/", "a/mapper/", "r/.*/" ]
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cache_dir = "$G_root_/etc"
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sysfs_scan = 0
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}
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log {
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verbose = $verboselevel
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syslog = 0
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indent = 1
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}
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backup {
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backup = 0
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archive = 0
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}
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global {
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library_dir = "$G_root_/lib"
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}
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activation {
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udev_sync = 1
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udev_rules = 1
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}
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EOF
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}
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init_root_dir_
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