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authorLibrewish2020-10-25 15:57:24 +0530
committerLibrewish2020-10-25 15:57:24 +0530
commit5271f23d8ac140f2db82697b645c38a41ccc78ac (patch)
treec6b82c2b8538c1bdf9de3f43e4d1e88bb0fb4f61 /os-prober-btrfsfix.patch
downloadaur-5271f23d8ac140f2db82697b645c38a41ccc78ac.tar.gz
update
Diffstat (limited to 'os-prober-btrfsfix.patch')
-rw-r--r--os-prober-btrfsfix.patch472
1 files changed, 472 insertions, 0 deletions
diff --git a/os-prober-btrfsfix.patch b/os-prober-btrfsfix.patch
new file mode 100644
index 00000000000..1047d249f92
--- /dev/null
+++ b/os-prober-btrfsfix.patch
@@ -0,0 +1,472 @@
+diff --git a/common.sh b/common.sh
+index c2c5f46..8fb3c5f 100644
+--- a/common.sh
++++ b/common.sh
+@@ -155,6 +155,7 @@ parse_proc_mounts () {
+ done
+ }
+
++# add forth parameter to pickup btrfs subvol info
+ parsefstab () {
+ while read -r line; do
+ case "$line" in
+@@ -165,12 +166,22 @@ parsefstab () {
+ set -f
+ set -- $line
+ set +f
+- printf '%s %s %s\n' "$1" "$2" "$3"
++ printf '%s %s %s %s\n' "$1" "$2" "$3" "$4"
+ ;;
+ esac
+ done
+ }
+
++#check_btrfs_mounted $bootsv $bootuuid)
++check_btrfs_mounted () {
++ bootsv="$1"
++ bootuuid="$2"
++ bootdev=$(blkid | grep "$bootuuid" | cut -d ':' -f 1)
++ bindfrom=$(grep " btrfs " /proc/self/mountinfo |
++ grep " $bootdev " | grep " /$bootsv " | cut -d ' ' -f 5)
++ printf "%s" "$bindfrom"
++}
++
+ unescape_mount () {
+ printf %s "$1" | \
+ sed 's/\\011/ /g; s/\\012/\n/g; s/\\040/ /g; s/\\134/\\/g'
+diff --git a/linux-boot-prober b/linux-boot-prober
+index e32dc84..2a60fa2 100755
+--- a/linux-boot-prober
++++ b/linux-boot-prober
+@@ -5,16 +5,143 @@ set -e
+
+ newns "$@"
+ require_tmpdir
++ERR="n"
++
++tmpmnt=/var/lib/os-prober/mount
++if [ ! -d "$tmpmnt" ]; then
++ mkdir "$tmpmnt"
++fi
++
++mounted=
++bootmnt=
++bootsv=
++bootuuid=
+
+ grep "^/dev/" /proc/mounts | parse_proc_mounts >"$OS_PROBER_TMP/mounted-map" || true
+
+-partition="$1"
++if [ -z "$1" ]; then
++ ERR=y
++elif [ "$1" = btrfs -a -z "$2" ]; then
++ ERR=y
++elif [ "$1" = btrfs -a -z "$3" ]; then
++ ERR=y
++elif [ "$1" = btrfs ]; then
++ type=btrfs
++ echo "$2" | grep -q "^UUID=" || ERR=y
++ echo "$3" | grep -q "^subvol=" || ERR=y
++ export "$2"
++ export "$3"
++ partition=$(blkid | grep "$UUID" | cut -d ':' -f 1 | tr '\n' ' ' | cut -d ' ' -f 1)
++ debug "btrfs: partition=$partition, UUID=$UUID, subvol=$subvol"
++else
++ partition="$1"
++ type=other
++fi
+
+-if [ -z "$partition" ]; then
++if [ "x$ERR" != xn ]; then
+ echo "usage: linux-boot-prober partition" >&2
++ echo " linux-boot-prober btrfs UUID=<> subvol=<>" >&2
+ exit 1
+ fi
+
++if [ "$type" = btrfs ]; then
++ # handle all of the btrfs stuff here
++ if [ ! -e "/proc/self/mountinfo" ]; then
++ warn "/proc/self/mountinfo does not exist, exiting"
++ umount "$tmpmnt" 2>/dev/null
++ rmdir "$tmpmnt" 2>/dev/null
++ exit 1
++ fi
++ mpoint=$(grep "btrfs" /proc/self/mountinfo | grep " /$subvol " | grep " $partition " | cut -d ' ' -f 5)
++ if [ "$mpoint" = "/" ]; then
++ warn "specifying active root not valid, exiting"
++ umount "$tmpmnt" 2>/dev/null
++ rmdir "$tmpmnt" 2>/dev/null
++ exit 1
++ fi
++ if [ "$mpoint" = "$tmpmnt" ]; then
++ warn "btrfs subvol=$subvool, UUID=$UUID, already mounted on $tmpmnt **ERROR**"
++ umount "$tmpmnt" 2>/dev/null
++ rmdir "$tmpmnt" 2>/dev/null
++ exit 1
++ fi
++ if [ -z "$mpoint" ]; then
++ # mount the btrfs root
++ if ! mount -o subvol=$subvol -t btrfs -U $UUID "$tmpmnt" 2>/dev/null; then
++ warn "error mounting btrfs subvol=$subvol UUID=$UUID"
++ umount "$tmpmnt/boot" 2>/dev/null
++ umount "$tmpmnt" 2>/dev/null
++ rmdir "$tmpmnt" 2>/dev/null
++ exit 1
++ fi
++ else
++ # bind-mount
++ if ! mount -o bind "$mpoint" "$tmpmnt" 2>/dev/null; then
++ warn "error mounting btrfs bindfrom=$mpoint subvol=$subvol UUID=$UUID"
++ umount "$tmpmnt/boot" 2>/dev/null
++ umount "$tmpmnt" 2>/dev/null
++ rmdir "$tmpmnt" 2>/dev/null
++ exit 1
++ fi
++ fi
++ debug "mounted btrfs $partition, subvol=$subvol on $tmpmnt"
++ if [ ! -e "$tmpmnt/etc/fstab" ]; then
++ warn "btrfs subvol=$subvol not root"
++ umount "$tmpmnt" 2>/dev/null
++ rmdir "$tmpmnt" 2>/dev/null
++ exit 1
++ fi
++ bootmnt=$(parsefstab < "$tmpmnt/etc/fstab" | grep " /boot ") || true
++ if [ -z "$bootmnt" ]; then
++ # /boot is part of the root
++ bootpart="$partition"
++ bootsv="$subvol"
++ elif echo "$bootmnt" | cut -d ' ' -f 3 | grep -q "btrfs"; then
++ # separate btrfs /boot subvolume
++ bootsv=$(echo "$bootmnt" | cut -d ' ' -f 4 | grep "^subvol=" | sed "s/subvol=//" )
++ bootuuid=$(echo "$bootmnt" | cut -d ' ' -f 1 | grep "^UUID=" | sed "s/UUID=//" )
++ debug "mounting btrfs $tmpmnt/boot UUID=$bootuuid subvol=$bootsv"
++ bindfrom=$(check_btrfs_mounted $bootsv $bootuuid)
++ if [ -n "$bindfrom" ]; then
++ # already mounted some place
++ if ! mount -o bind $bindfrom "$tmpmnt/boot" 2>/dev/null; then
++ warn "error bind mounting btrfs boot subvol=$bootsv, from=$bindfrom"
++ umount "$tmpmnt/boot" 2>/dev/null
++ umount "$tmpmnt" 2>/dev/null
++ rmdir "$tmpmnt" 2>/dev/null
++ exit 1
++ fi
++ elif ! mount -o subvol=$bootsv -t btrfs -U $bootuuid "$tmpmnt/boot" 2>/dev/null; then
++ warn "error mounting btrfs boot partition subvol=$bootsv, UUID=$bootuuid"
++ umount "$tmpmnt/boot" 2>/dev/null
++ umount "$tmpmnt" 2>/dev/null
++ rmdir "$tmpmnt" 2>/dev/null
++ exit 1
++ fi
++ bootpart=$(grep " btrfs " /proc/self/mountinfo | grep " /$bootsv " | cut -d ' ' -f 10)
++ else
++ # non-btrfs partition or logical volume
++ linux_mount_boot $partition $tmpmnt
++ bootpart="${mountboot%% *}"
++ bootsv=
++ fi
++
++ test="/usr/lib/linux-boot-probes/mounted/40grub2"
++ if [ -f $test ] && [ -x $test ]; then
++ debug "running $test $partition $bootpart $tmpmnt $type $subvol $bootsv"
++ if $test "$partition" "$bootpart" "$tmpmnt" "$type" "$subvol" "$bootsv"; then
++ debug "$test succeeded"
++ fi
++ fi
++ umount "$tmpmnt/boot" 2>/dev/null || true
++ if ! umount "$tmpmnt" 2>/dev/null; then
++ warn "problem umount $tmpmnt"
++ fi
++ rmdir "$tmpmnt" 2>/dev/null || true
++
++ exit 0
++fi
++
+ if ! mapped="$(mapdevfs "$partition")"; then
+ log "Device '$partition' does not exist; skipping"
+ continue
+@@ -22,8 +149,8 @@ fi
+
+ if ! grep -q "^$mapped " "$OS_PROBER_TMP/mounted-map"; then
+ for test in /usr/lib/linux-boot-probes/*; do
+- debug "running $test"
+ if [ -x $test ] && [ -f $test ]; then
++ debug "running $test"
+ if $test "$partition"; then
+ debug "linux detected by $test"
+ break
+diff --git a/linux-boot-probes/mounted/common/40grub2 b/linux-boot-probes/mounted/common/40grub2
+index 885614e..db5cbfd 100755
+--- a/linux-boot-probes/mounted/common/40grub2
++++ b/linux-boot-probes/mounted/common/40grub2
+@@ -2,17 +2,30 @@
+ . /usr/share/os-prober/common.sh
+ set -e
+
++# add support for btrfs with no separate /boot
++# that is, rootsv = bootsv
+ partition="$1"
+ bootpart="$2"
+ mpoint="$3"
+ type="$4"
++rootsv="$5"
++bootsv="$6"
+
+ found_item=0
+
+ entry_result () {
++ if [ "x$type" = "xbtrfs" -a "$partition" = "$bootpart" ]; then
++ # trim off the leading subvol
++ kernelfile=$(echo "$kernel" | cut -d '/' -f 2- | cut -d '/' -f 2-)
++ if [ "x$rootsv" != "x$bootsv" ]; then
++ kernelfile="/boot/$kernelfile"
++ fi
++ else
++ kernelfile=$kernel
++ fi
+ if [ "$ignore_item" = 0 ] && \
+ [ -n "$kernel" ] && \
+- [ -e "$mpoint/$kernel" ]; then
++ [ -e "$mpoint/$kernelfile" ]; then
+ result "$rootpart:$bootpart:$title:$kernel:$initrd:$parameters"
+ found_item=1
+ fi
+diff --git a/os-prober b/os-prober
+index 8852887..482c3c2 100755
+--- a/os-prober
++++ b/os-prober
+@@ -76,9 +76,12 @@ partitions () {
+
+ # Also detect OSes on LVM volumes (assumes LVM is active)
+ if type lvs >/dev/null 2>&1; then
+- echo "$(LVM_SUPPRESS_FD_WARNINGS=1 log_output lvs --noheadings --separator : -o vg_name,lv_name |
++ echo "$(LVM_SUPPRESS_FD_WARNINGS=1 log_output lvs --noheadings --separator : -o vg_name,lv_name 2>/dev/null |
+ sed "s|-|--|g;s|^[[:space:]]*\(.*\):\(.*\)$|/dev/mapper/\1-\2|")"
+ fi
++
++ # now lets make sure we got all of the btrfs partitions and disks
++ blkid | grep 'TYPE="btrfs"' | cut -d ':' -f 1
+ }
+
+ parse_proc_swaps () {
+@@ -136,6 +139,8 @@ if [ -f /proc/mdstat ] ; then
+ grep "^md" /proc/mdstat | cut -d: -f2- | parse_proc_mdstat >"$OS_PROBER_TMP/raided-map" || true
+ fi
+
++: >"$OS_PROBER_TMP/btrfs-vols"
++
+ for partition in $(partitions); do
+ if ! mapped="$(mapdevfs "$partition")"; then
+ log "Device '$partition' does not exist; skipping"
+@@ -154,7 +159,26 @@ for partition in $(partitions); do
+ continue
+ fi
+
+- if ! grep -q "^$mapped " "$OS_PROBER_TMP/mounted-map" ; then
++ # do btrfs processing here; both mounted and unmounted will
++ # be handled by 50mounted-tests so we can do a subvol only once.
++ type=$(blkid -o value -s TYPE $mapped || true)
++ if [ "$type" = btrfs ]; then
++ uuid=$(blkid -o value -s UUID $mapped)
++ if grep -q "^$uuid" "$OS_PROBER_TMP/btrfs-vols" ; then
++ continue
++ fi
++ debug "btrfs volume uuid=$uuid partition=$partition"
++ echo "$uuid" >>"$OS_PROBER_TMP/btrfs-vols"
++ test="/usr/lib/os-probes/50mounted-tests"
++ if [ -f "$test" ] && [ -x "$test" ]; then
++ debug "running $test on btrfs $partition"
++ if "$test" btrfs "$uuid" "$partition"; then
++ debug "os detected by $test"
++ continue
++ fi
++ fi
++
++ elif ! grep -q "^$mapped " "$OS_PROBER_TMP/mounted-map" ; then
+ for test in /usr/lib/os-probes/*; do
+ if [ -f "$test" ] && [ -x "$test" ]; then
+ debug "running $test on $partition"
+diff --git a/os-probes/common/50mounted-tests b/os-probes/common/50mounted-tests
+index 2951ef9..e33eb82 100755
+--- a/os-probes/common/50mounted-tests
++++ b/os-probes/common/50mounted-tests
+@@ -19,19 +19,31 @@ do_unmount() {
+ rmdir "$tmpmnt" || true
+ }
+
+-types="$(fs_type "$partition")"
++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 "$1 type not recognised; skipping"
+- exit 0
++ exit 1
+ elif [ "$types" = swap ]; then
+ debug "$1 is a swap partition; skipping"
+- exit 0
++ exit 1
+ elif [ "$types" = crypto_LUKS ]; then
+ debug "$1 is a LUKS partition; skipping"
+- exit 0
++ exit 1
+ elif [ "$types" = LVM2_member ]; then
+ debug "$1 is an LVM member; skipping"
+- exit 0
++ exit 1
+ elif [ "$types" = ntfs ]; then
+ if type ntfs-3g >/dev/null 2>&1; then
+ types='ntfs-3g ntfs'
+@@ -40,7 +52,7 @@ 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 0
++ exit 1
+ fi
+ for type in $(grep -v nodev /proc/filesystems); do
+ # hfsplus filesystems are mountable as hfs. Try hfs last so
+@@ -63,6 +75,108 @@ if [ ! -d "$tmpmnt" ]; then
+ 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 14)
++ if ! umount "$tmpmnt"; then
++ warn "failed to umount btrfs volume on $tmpmnt"
++ rmdir "$tmpmnt" || true
++ exit 1
++ fi
++
++ found=
++ mounted=
++
++ mpoint="$(grep btrfs /proc/self/mountinfo | grep "$partition " | cut -d ' ' -f 5)"
++ if [ -n "$mpoint" -a "x$mpoint" = "x/" ]; then
++ debug "This is the root for the running system" #running system must be done elsewhere
++ else
++ #partition was not root of running system, so lets look for bootable subvols
++ if [ -n "$mpoint" ] ; then
++ mounted=1 #partition was already mounted,so lets not unmount it when done
++ else
++ # again, do not mount btrfs ro
++ mount -t btrfs -U "$UUID" "$tmpmnt"
++ mpoint="$tmpmnt"
++ fi
++
++ test="/usr/lib/os-probes/mounted/90linux-distro"
++ if [ -f "$test" ] && [ -x "$test" ]; then
++ debug "running subtest $test"
++ if "$test" "$partition" "$mpoint" btrfs "UUID=$UUID"; then
++ debug "os found by subtest $test on $partition"
++ found=1
++ fi
++ fi
++ if [ -z "$mounted" ]; then
++ if ! umount "$tmpmnt"; then
++ warn "failed to umount $tmpmnt"
++ fi
++ fi
++ fi
++
++ if [ -z "$subvols" ]; then
++ debug "no subvols found on btrfs volume $UUID"
++ else
++ 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="$tmpmnt"
++ fi
++ test="/usr/lib/os-probes/mounted/90linux-distro"
++ if [ -f "$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 $tmpmnt"
++ fi
++ fi
++ done
++ fi
++ rmdir "$tmpmnt" || true
++ if [ "$found" ]; then
++ exit 0
++ else
++ exit 1
++ fi
++fi
++
+ if type grub-mount >/dev/null 2>&1 && \
+ type grub-probe >/dev/null 2>&1 && \
+ grub-mount "$partition" "$tmpmnt" 2>/dev/null; then
+diff --git a/os-probes/mounted/common/90linux-distro b/os-probes/mounted/common/90linux-distro
+index badfbb1..9bc5154 100755
+--- a/os-probes/mounted/common/90linux-distro
++++ b/os-probes/mounted/common/90linux-distro
+@@ -7,6 +7,8 @@ set -e
+ partition="$1"
+ dir="$2"
+ type="$3"
++uuid="$4"
++subvol="$5"
+
+ # This test is inaccurate, but given separate / and /boot partitions and the
+ # fact that only some architectures have ld-linux.so, I can't see anything
+@@ -143,7 +145,11 @@ if (ls "$dir"/lib*/ld*.so* && [ -d "$dir/boot" ] || ls "$dir"/usr/lib*/ld*.so*)
+ fi
+
+ label="$(count_next_label "$short")"
+- result "$partition:$long:$label:linux"
++ if [ "x$type" = "xbtrfs" -a "x$uuid" != "x" -a "x$subvol" != "x" ]; then
++ result "$partition:$long:$label:linux:$type:$uuid:$subvol"
++ else
++ result "$partition:$long:$label:linux"
++ fi
+ exit 0
+ else
+ exit 1