name : linux-boot-prober #!/bin/sh . /usr/share/os-prober/common.sh set -e newns "$@" require_tmpdir grep "^/dev/" /proc/mounts | parse_proc_mounts >"$OS_PROBER_TMP/mounted-map" || true partition="$1" if [ -z "$partition" ]; then echo "usage: linux-boot-prober partition" >&2 exit 1 fi if ! mapped="$(mapdevfs "$partition")"; then log "Device '$partition' does not exist; skipping" continue fi if ! grep -q "^$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 if $test "$partition"; then debug "linux detected by $test" break fi fi done else mpoint=$(grep "^$mapped " "$OS_PROBER_TMP/mounted-map" | head -n1 | cut -d " " -f 2) mpoint="$(unescape_mount "$mpoint")" if [ "$mpoint" != "/target/boot" ] && [ "$mpoint" != "/target" ] && [ "$mpoint" != "/" ]; then type=$(grep "^$mapped " "$OS_PROBER_TMP/mounted-map" | head -n1 | cut -d " " -f 3) if ! grep -q " $mpoint/boot " "$OS_PROBER_TMP/mounted-map"; then linux_mount_boot "$partition" "$mpoint" bootpart="${mountboot%% *}" bootmounted="${mountboot#* }" else bootpart="$partition" bootmounted=0 fi for test in /usr/lib/linux-boot-probes/mounted/*; do if [ -f $test ] && [ -x $test ]; then debug "running $test on mounted $partition" if $test "$partition" "$bootpart" "$mpoint" "$type"; then debug "$test succeeded" break fi fi done if [ "$bootmounted" = 1 ]; then if ! umount "$mpoint/boot"; then warn "failed to umount $mpoint/boot" fi fi fi fi