From: Phillip Susi <psusi@ubuntu.com>
To: util-linux@vger.kernel.org
Subject: blkid doesn't find lvm pv when boot loader installed
Date: Fri, 11 Oct 2013 12:05:10 -0400 [thread overview]
Message-ID: <525821B6.9010304@ubuntu.com> (raw)
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
When installing a boot loader into an LVM PV, blkid detects it as a
dos partition table and does not probe the lvm superblock.
Easy way to reproduce is to pvcreate a volume, then xxd -r the
following grub boot sector into it:
0000000: eb63 9000 0000 0000 0000 0000 0000 0000 .c..............
0000010: 0000 0000 0000 0000 0000 0000 0000 0000 ................
0000020: 0000 0000 0000 0000 0000 0000 0000 0000 ................
0000030: 0000 0000 0000 0000 0000 0000 0000 0000 ................
0000040: 0000 0000 0000 0000 0000 0000 0000 0000 ................
0000050: 0000 0000 0000 0000 0000 0080 7eb0 0300 ............~...
0000060: 0000 0000 fffa 9090 f6c2 8074 05f6 c270 ...........t...p
0000070: 7402 b280 ea79 7c00 0031 c08e d88e d0bc t....y|..1......
0000080: 0020 fba0 647c 3cff 7402 88c2 52be 807d . ..d|<.t...R..}
0000090: e817 01be 057c b441 bbaa 55cd 135a 5272 .....|.A..U..ZRr
00000a0: 3d81 fb55 aa75 3783 e101 7432 31c0 8944 =..U.u7...t21..D
00000b0: 0440 8844 ff89 4402 c704 1000 668b 1e5c .@.D..D.....f..\
00000c0: 7c66 895c 0866 8b1e 607c 6689 5c0c c744 |f.\.f..`|f.\..D
00000d0: 0600 70b4 42cd 1372 05bb 0070 eb76 b408 ..p.B..r...p.v..
00000e0: cd13 730d f6c2 800f 84d8 00be 8b7d e982 ..s..........}..
00000f0: 0066 0fb6 c688 64ff 4066 8944 040f b6d1 .f....d.@f.D....
0000100: c1e2 0288 e888 f440 8944 080f b6c2 c0e8 .......@.D......
0000110: 0266 8904 66a1 607c 6609 c075 4e66 a15c .f..f.`|f..uNf.\
0000120: 7c66 31d2 66f7 3488 d131 d266 f774 043b |f1.f.4..1.f.t.;
0000130: 4408 7d37 fec1 88c5 30c0 c1e8 0208 c188 D.}7....0.......
0000140: d05a 88c6 bb00 708e c331 dbb8 0102 cd13 .Z....p..1......
0000150: 721e 8cc3 601e b900 018e db31 f6bf 0080 r...`......1....
0000160: 8ec6 fcf3 a51f 61ff 265a 7cbe 867d eb03 ......a.&Z|..}..
0000170: be95 7de8 3400 be9a 7de8 2e00 cd18 ebfe ..}.4...}.......
0000180: 4752 5542 2000 4765 6f6d 0048 6172 6420 GRUB .Geom.Hard
0000190: 4469 736b 0052 6561 6400 2045 7272 6f72 Disk.Read. Error
00001a0: 0d0a 00bb 0100 b40e cd10 ac3c 0075 f4c3 ...........<.u..
00001b0: 0000 0000 0000 0000 0000 0000 0000 0000 ................
00001c0: 0000 0000 0000 0000 0000 0000 0000 0000 ................
00001d0: 0000 0000 0000 0000 0000 0000 0000 0000 ................
00001e0: 0000 0000 0000 0000 0000 0000 0000 0000 ................
00001f0: 0000 0000 0000 0000 0000 0000 0000 55aa ..............U.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2.0.17 (MingW32)
Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/
iQEcBAEBAgAGBQJSWCG2AAoJEJrBOlT6nu759noIAK7V5ZjDb1skpoIsQKLBGEty
5wU9Cm4yBJ9/uRhsE/w6kahZDQvjcj7jUZoYNpau94NySRLZ10QNBvMBZiflMaZF
9lZ2dtATh57eo0PvDPZ25ZgKO9rYzeAlrGx86/FffxmCpKzPAzRk7g4ggVtItEtl
irUtru4rDMdaKdfJQ9rSlYA7JcI/OcPiORUQQ+Zm1Ff2eRUSFr/8AWZrMD/oHMKb
qzln7tzKCktnKY1Iyyhr2mrNBxXxFV0QB7ObihQZxHrOmMTJTWIREVTPmDSp+jOX
7RHzV6DHLxR80HN2I2Y5iM4rEipQGxJ5Img/K6QPHWgo1BobfZNoeqe7o4lJwRg=
=rwTa
-----END PGP SIGNATURE-----
next reply other threads:[~2013-10-11 16:05 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-10-11 16:05 Phillip Susi [this message]
2013-10-14 13:59 ` blkid doesn't find lvm pv when boot loader installed Karel Zak
2013-10-14 15:01 ` Phillip Susi
2013-10-18 9:36 ` Karel Zak
2013-10-18 11:57 ` Karel Zak
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=525821B6.9010304@ubuntu.com \
--to=psusi@ubuntu.com \
--cc=util-linux@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.