grub-probe --target=disk not documented

grub-probe --target=disk not documented

[Phillip Susi]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

I noticed that --target=disk is not mentioned in either the grub-probe
man page, nor --help.

Also I noticed that it gives no output, or error for lvm disks:

grub-probe --target=disk /
#no output or error
grub-probe --target=device /
/dev/mapper/devserv-root
grub-probe --target=disk -d /dev/mapper/devserv-root
#no output or error
grub-probe --target=disk -d /dev/mapper/md0
/dev/md0

Why does it appear to give the same output as --target=device when run
on md or sd devices, then nothing for lvm?

-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2.0.17 (MingW32)
Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/

iQEcBAEBAgAGBQJTMaJtAAoJEI5FoCIzSKrwDmsIAI5DNbE1q4WHSD9oKo0akmx2
FWzmt3cTTBhbwXRASwATtlf7RKtf21rJUfjN5OHEjy4lndss7OZahqv52Par3LJZ
Jkw6dLCu4VoOETfK8pdo+OBBPtLyBFCTSWwDHvswtPMCPUhtVV3kQNnCLmrETNc8
iv/LAMoJiUGC0kkRXB+6fHjoBh5dohZ8M8gkqLMXKdhFsa2NEch6QYDdpAA41jvs
az2sNmcYYmXbrUP3PjE+GYDCLEHH22GDcaiSL/gTcXFSRXsIvdwRg6eM5NGq6SBY
crVRDlry44OepYCRVcyZ4kBo1dDYipKWntqUCww5iLq/YNAAbDBirp8g4tpiVqw=
=ald9
-----END PGP SIGNATURE-----

Re: grub-probe --target=disk not documented

[Andrey Borzenkov]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

В Tue, 25 Mar 2014 11:36:13 -0400
Phillip Susi <psusi@ubuntu.com> пишет:

> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
> 
> I noticed that --target=disk is not mentioned in either the grub-probe
> man page, nor --help.
> 

It is in current master (man page is autogenerated from --help output).

> Also I noticed that it gives no output, or error for lvm disks:
> 
> grub-probe --target=disk /
> #no output or error
> grub-probe --target=device /
> /dev/mapper/devserv-root
> grub-probe --target=disk -d /dev/mapper/devserv-root
> #no output or error
> grub-probe --target=disk -d /dev/mapper/md0
> /dev/md0
> 
> Why does it appear to give the same output as --target=device when run
> on md or sd devices, then nothing for lvm?
> 

There was quite a number of changes in master related to device-mapper
handling so I suggest you retest using current HEAD.

bor@opensuse:~/build/grub> sudo ./grub-probe --target disk --device /dev/mapper/system-root
/dev/mapper/system-root
bor@opensuse:~/build/grub> 

-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2.0.22 (GNU/Linux)

iEYEARECAAYFAlMxpsYACgkQR6LMutpd94wiIQCgwKcGcoP9fWlnIEzBX++4IXp5
jEwAn2jZfJlvibUN1q94sSYOHroQXg+Y
=v7lH
-----END PGP SIGNATURE-----