From mboxrd@z Thu Jan 1 00:00:00 1970 From: NeilBrown Subject: Re: grub-probe seems to be having problems Date: Thu, 22 Mar 2012 13:46:44 +1100 Message-ID: <20120322134644.4ab6aa3a@notabene.brown> References: <4F685BC2.1030008@gmail.com> <529358656.324923.1332383237382.JavaMail.root@sz0019a.westchester.pa.mail.comcast.net> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=PGP-SHA1; boundary="Sig_/WMdUw/17VLWwZT7SLFM86W6"; protocol="application/pgp-signature" Return-path: In-Reply-To: <529358656.324923.1332383237382.JavaMail.root@sz0019a.westchester.pa.mail.comcast.net> Sender: linux-raid-owner@vger.kernel.org To: jlcenter@comcast.net Cc: linux-raid@vger.kernel.org List-Id: linux-raid.ids --Sig_/WMdUw/17VLWwZT7SLFM86W6 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable On Thu, 22 Mar 2012 02:27:17 +0000 (UTC) jlcenter@comcast.net wrote: > Any takers? -John Without the "details in the previous mail", there isn't much to take... NeilBrown >=20 > ----- Forwarded Message ----- > From: "Vladimir '=CF=86-coder/phcoder' Serbinenko" > To: "Lennart Sorensen" > Cc: "The development of GRUB 2" , "Marco d'Itri" > Sent: Tuesday, March 20, 2012 6:28:18 AM > Subject: Re: grub-probe seems to be having problems >=20 > On 19.03.2012 22:28, Lennart Sorensen wrote: > > On Fri, Mar 09, 2012 at 03:37:57PM -0500, Lennart Sorensen wrote: > >> Interestingly after poking at reading all the disks and poking mdadm > >> --examine and --detail, now grub-prob likes md1, but still dislikes md= 0. > >> > >> root@rceng03new:/tmp# /usr/sbin/grub-probe --device-map=3D --target=3D= abstraction --device /dev/md1 > >> diskfilter mdraid1x raid5rec > >> root@rceng03new:/tmp# /usr/sbin/grub-probe --device-map=3D --target=3D= abstraction --device /dev/md0 > >> /usr/sbin/grub-probe: error: Couldn't find physical volume `(null)'. C= heck your device.map. > >> > >> md1 was failing before with the same grub code. > >> > >> I don't get it. I wonder if there is any known issues in 2.6.32 kernel > >> and/or mdadm - v3.1.4 - 31st August 2010 > > Any suggestion for how to try and debug this myself, like which > > file/function to start debuging at? I would like to put this machine > > in to production use soon, but I would also like to take this chance to > > fix the bug in grub first. >=20 > There is no need to debug. I know exactly why GRUB is confused: because=20 > as far as my understanding goes the superblock makes no sense (details=20 > in previous mail). What we need is that someone familiar with md tells=20 > me how this sector should be interpreted. >=20 >=20 >=20 --Sig_/WMdUw/17VLWwZT7SLFM86W6 Content-Type: application/pgp-signature; name=signature.asc Content-Disposition: attachment; filename=signature.asc -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.18 (GNU/Linux) iQIVAwUBT2qSlDnsnt1WYoG5AQKjmA/9FpI//le1Iynep2wYO7ZPEBj8Amh/q3z7 Qvl24KHWvYJjNBg8qAT7vNU8NczSkjrjOB8p9etaaThjJla2RP+07nJGmN3L89oB sAQr2siBgdXvIRm9E1UArWSxdMaXbVf14x9wpz+J/XJjh+YLvl/v3IXPx77/poyM xSAuIP/Lky4macC7chbINzYNMqeXi/ap56LBdIvw5mJEw6KVOfXcA8Q1ePMgSSYS wY3ZHg5TBwuEwQApocbZ3gwmwDnDz1Rxnb/X2Iky21tRiuSj19id6gHVCQqE3+Pk oILthVg8BwrMpAppixVSbhZL/OUEMaCXnlXWov1HiWg9ozXDfcfiR5x8Uoc4IVZl iPHXxz1CL69MqJBt7B/gLAvMPVexf/aRRh5ADSwVtXEkTTm05F9dlvmkB9/RrCfL vBDIthTJmYIAd1ov9JlA4KsEcFki9/qRZWOCXSMVT6BLlU/ZNWtnBAQgl8jk3mOO h9KHPPuEpI3D7JeCcm7w56s1H2gy6aXi6lb7XSDF9AZQY1cerz2eurK+6iajymIb PJ3I/jr5IFGYFd3mKS5FCVvUvL0UwVQg9NInFPW8Q1VNksjxuIWUJxI+982PXE80 TVMCEEAMbgjLKj5pJ6JwS09tN0ipO2NBA9iaxLIHj9rfQmxAD8f5mVK5UrVqFt3b 18jvafISw0w= =mA51 -----END PGP SIGNATURE----- --Sig_/WMdUw/17VLWwZT7SLFM86W6--