[PATCHv2] os-prober: Fix translating device to mach format

[Samuel Thibault]

grub-probe --device /dev/sda --target=drive

would currently print on Linux x86 "hostdisk//dev/sda,msdos1", i.e. not
something we can translate easily.  We can instead use compatibility_hint
which have more well-defined format (hd0,1)

Signed-off-by: Samuel Thibault <address@hidden>

---
new in v2: Fix typo and  be more verbose in changelog
---
 util/grub.d/30_os-prober.in | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/util/grub.d/30_os-prober.in b/util/grub.d/30_os-prober.in
index 515a68c7a..38444fe65 100644
--- a/util/grub.d/30_os-prober.in
+++ b/util/grub.d/30_os-prober.in
@@ -297,8 +297,8 @@ menuentry '$(echo "${LONGNAME} $onstr" | grub_quote)' 
--class hurd --class gnu -
 EOF
       save_default_entry | grub_add_tab
       prepare_grub_to_access_device ${DEVICE} | grub_add_tab
-      grub_device="`${grub_probe} --device ${DEVICE} --target=drive`"
-      mach_device="`echo "${grub_device}" | sed -e 
's/(\(hd.*\),msdos\(.*\))/\1s\2/'`"
+      grub_device="`${grub_probe} --device ${DEVICE} 
--target=compatibility_hint`"
+      mach_device="`echo "${grub_device}" | sed -e 
's/\(hd.*\),msdos\(.*\)/\1s\2/'`"
       grub_fs="`${grub_probe} --device ${DEVICE} --target=fs`"
       case "${grub_fs}" in
        *fs)    hurd_fs="${grub_fs}" ;;
-- 
2.16.1