Help: Could not find major number for 'rootnex'
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From: Weiping He on 7 Mar 2005 09:27 One SUN V880 server got some error message like "panic[CPU7]/thread=140a000 Could not find major number for 'rootnex'" during applying latest Solaris patches. The machine keeps reboot then. I run hardware diagnosis and could not find any error. Can somebody help me with this? Remove CPU7 will solve the problem? Thanks a lot!
From: Andrew Gabriel on 7 Mar 2005 10:07 In article <d0hocd$h4h$1(a)solaris.cc.vt.edu>, "Weiping He" <whe(a)microstrategy.com> writes: > One SUN V880 server got some error message like > "panic[CPU7]/thread=140a000 Could not find major number for 'rootnex'" > during applying latest Solaris patches. > > The machine keeps reboot then. > I run hardware diagnosis and could not find any error. > > Can somebody help me with this? Sounds like /etc/name_to_major is corrupt or missing. Boot from CDROM (or network), mount the root filesystem, and see what's in the file. (The act of just mounting the root filesystem might fix it in any case, if the problem is due to an unrolled transaction log.) > Remove CPU7 will solve the problem? No. The thread reporting the problem happens to be running on CPU7, but CPU7 is most unlikely to be the cause of the problem. -- Andrew Gabriel
From: Weiping He on 7 Mar 2005 12:19 Thanks for you reply! Yes! That's the answer! /etc/name_to_major is blank. How can I restore it then? Thanks "Andrew Gabriel" <andrew(a)cucumber.demon.co.uk> wrote in message news:d0hqn0$dk1$1(a)sparta.btinternet.com... > In article <d0hocd$h4h$1(a)solaris.cc.vt.edu>, > "Weiping He" <whe(a)microstrategy.com> writes: > > One SUN V880 server got some error message like > > "panic[CPU7]/thread=140a000 Could not find major number for 'rootnex'" > > during applying latest Solaris patches. > > > > The machine keeps reboot then. > > I run hardware diagnosis and could not find any error. > > > > Can somebody help me with this? > > Sounds like /etc/name_to_major is corrupt or missing. > Boot from CDROM (or network), mount the root filesystem, > and see what's in the file. (The act of just mounting the > root filesystem might fix it in any case, if the problem > is due to an unrolled transaction log.) > > > Remove CPU7 will solve the problem? > > No. The thread reporting the problem happens to be running > on CPU7, but CPU7 is most unlikely to be the cause of the > problem. > > -- > Andrew Gabriel
From: Mark Round on 7 Mar 2005 12:36 Backup ? Or you could specify what version of Solaris you're running, and someone here could post a copy of their file, assuming that's the only thing that got wiped. Do you know how it got deleted or overwritten ? If it's more serious, and the whole SUNWcsr package (which includes /etc/name_to_major on my Solaris 9 box) got removed, you could try re-adding the package. Assuming you've booted using the Saolrsi CD-ROM, and have mounted the root slice under /a, you could do something along the lines of : # pkgadd -d . -R /a SUNWcsr Although after doing this, you'd have to make sure you re-applied any patches that touched SUNWcsr. -Mark
From: Mark Round on 7 Mar 2005 12:45
>Assuming you've booted using the Saolrsi CD-ROM, Duh. I obviously meant "Solaris CD-ROM"... Time to put the keyboard down, step away from the root prompt and get some caffeine :) -Mark |