| Current Path : /usr/libexec/os-probes/ |
Linux gator3171.hostgator.com 4.19.286-203.ELK.el7.x86_64 #1 SMP Wed Jun 14 04:33:55 CDT 2023 x86_64 |
| Current File : //usr/libexec/os-probes/50mounted-tests |
#!/bin/sh
# Sub-tests that require a mounted partition.
set -e
. /usr/share/os-prober/common.sh
if [ "x$1" = xbtrfs ]; then
types=btrfs
if [ -z "$2" -o -z "$3" ]; then
debug "missing btrfs parameters, exiting"
exit 1
fi
UUID="$2"
BTRFSDEV="$3"
else
partition="$1"
types="$(fs_type "$partition")" || types=NOT-DETECTED
fi
if [ "$types" = NOT-DETECTED ]; then
debug "$1 type not recognised; skipping"
exit 1
elif [ "x$types" = "x" ]; then
exit 1
elif [ "$types" = LVM2_member ]; then
debug "skipping LVM2 Volume Group on $partition"
exit 1
elif [ "$types" = swap ]; then
debug "$1 is a swap partition; skipping"
exit 1
elif [ "$types" = crypto_LUKS ]; then
debug "$1 is a LUKS partition; skipping"
exit 1
elif [ "$types" = ntfs ]; then
if type ntfs-3g >/dev/null 2>&1; then
types='ntfs-3g ntfs'
fi
elif [ -z "$types" ]; then
if type cryptsetup >/dev/null 2>&1 && \
cryptsetup luksDump "$partition" >/dev/null 2>&1; then
debug "$1 is a LUKS partition; skipping"
exit 1
fi
for type in $(grep -v nodev /proc/filesystems); do
# hfsplus filesystems are mountable as hfs. Try hfs last so
# that we can tell the difference.
if [ "$type" = hfs ]; then
delaytypes="${delaytypes:+$delaytypes }$type"
elif [ "$type" = fuseblk ]; then
if type ntfs-3g >/dev/null 2>&1; then
types="${types:+$types }ntfs-3g"
fi
else
types="${types:+$types }$type"
fi
done
fi
tmpmnt=/var/lib/os-prober/mount
if [ ! -d "$tmpmnt" ]; then
mkdir "$tmpmnt"
fi
mounted=
# all btrfs processing here. Handle both unmounted and
# mounted subvolumes.
if [ "$types" = btrfs ]; then
partition="$BTRFSDEV"
debug "begin btrfs processing for $UUID"
# note that the btrfs volume must not be mounted ro
if mount -t btrfs -U "$UUID" "$tmpmnt" 2>/dev/null; then
debug "btrfs volume $UUID mounted"
else
warn "cannot mount btrfs volume $UUID, exiting"
rmdir "$tmpmnt" || true
exit 1
fi
# besides regular subvols, get ro and snapshot so thet can be excluded
subvols=$(btrfs subvolume list "$tmpmnt" | cut -d ' ' -f 9)
rosubvols=$(btrfs subvolume list -r "$tmpmnt" | cut -d ' ' -f 9)
sssubvols=$(btrfs subvolume list -s "$tmpmnt" | cut -d ' ' -f 9)
if ! umount "$tmpmnt"; then
warn "failed to umount btrfs volume on $tmpmnt"
rmdir "$tmpmnt" || true
exit 1
fi
if [ -z "$subvols" ]; then
debug "no subvols found on btrfs volume $UUID"
exit 1
fi
found=
for subvol in $subvols; do
debug "begin btrfs processing for $UUID subvol=$subvol"
if echo "$rosubvols" | grep -q -x "$subvol"; then
continue
fi
if echo "$sssubvols" | grep -q -x "$subvol"; then
continue
fi
mounted=
mpoint="$(grep btrfs /proc/self/mountinfo | grep "$partition " | grep "/$subvol " | cut -d ' ' -f 5)"
if [ -n "$mpoint" ]; then
if [ "x$mpoint" = "x/" ]; then
continue # this is the root for the running system
fi
mounted=1
else
# again, do not mount btrfs ro
mount -t btrfs -o subvol="$subvol" -U "$UUID" "$tmpmnt"
mpoint="$tmpmnt"
fi
test="/usr/libexec/os-probes/mounted/90linux-distro"
if [ -f "$test" ] && [ -x "$test" ]; then
debug "running subtest $test"
if "$test" "$partition" "$mpoint" btrfs "UUID=$UUID" "subvol=$subvol"; then
debug "os found by subtest $test on subvol $subvol"
found=1
fi
fi
if [ -z "$mounted" ]; then
if ! umount "$tmpmnt"; then
warn "failed to umount $tmpmnt"
fi
fi
done
rmdir "$tmpmnt" || true
if [ "$found" ]; then
exit 0
else
exit 1
fi
fi
if type grub-mount >/dev/null 2>&1 && \
type grub2-probe >/dev/null 2>&1 && \
grub-mount "$partition" "$tmpmnt" 2>/dev/null; then
mounted=1
type="$(grub2-probe -d "$partition" -t fs)" || true
if [ "$type" ]; then
debug "mounted using GRUB $type filesystem driver"
else
debug "mounted using GRUB, but unknown filesystem?"
type=fuseblk
fi
else
ro_partition "$partition"
for type in $types $delaytypes; do
if mount -o ro -t "$type" "$partition" "$tmpmnt" 2>/dev/null; then
debug "mounted as $type filesystem"
mounted=1
break
fi
done
fi
if [ "$mounted" ]; then
for test in /usr/libexec/os-probes/mounted/*; do
debug "running subtest $test"
if [ -f "$test" ] && [ -x "$test" ]; then
if "$test" "$partition" "$tmpmnt" "$type"; then
debug "os found by subtest $test"
if ! umount "$tmpmnt"; then
warn "failed to umount $tmpmnt"
fi
rmdir "$tmpmnt" || true
exit 0
fi
fi
done
if ! umount "$tmpmnt"; then
warn "failed to umount $tmpmnt"
fi
fi
rmdir "$tmpmnt" || true
# No tests found anything.
exit 1