Date: Mon, 23 May 2011 16:12:58 +0300 From: Andriy Gapon <avg@FreeBSD.org> To: Eduardo <sathler90@gmail.com> Cc: freebsd-hackers@FreeBSD.org Subject: Re: upgrade to version 8 - can not mount root Message-ID: <4DDA5D5A.4060509@FreeBSD.org> In-Reply-To: <BANLkTinOoHKrCL3nDmjm4kFNo=L_xRUutA@mail.gmail.com> References: <BANLkTinOoHKrCL3nDmjm4kFNo=L_xRUutA@mail.gmail.com>
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on 20/05/2011 20:36 Eduardo said the following: > da0 at ahc0 bus0 scbus0 target 5 lun 0 > da0 messages ... > da0 at ahc0 bus0 scbus0 target 6 lun 0 > da1 messages ... > Trying to mount root from ufs:/dev/da0s1a > ROOT MOUNT ERROR: > If you have invalid mount options, reboot, and first try the following > from the loader prompt: > set vfs.root.mountfrom.options=rw > and then remove invalid mount options from /etc/fstab > Loader variables: > vfs.root.mountfrom=ufs:/dev/da0s1a > vfs.root.mountfrom.options=rw > > Manual root filesystem specification: ...etc.. > > mountroot> <enter> > > pani: Root mount failed, startup aborted. > cpuid=0 > KBD: stack backtrace: > #0 0xc08ebe67 at kdb_backtrace+0x47 > #1 0xc08bc627 at panic+0x117 > #2 0xc0943fc7 at vfs_mountroot+0x4f7 > #3 0xc08737c0 at start_init+0x60 > #4 0xc0890f51 at fork_exit+0x91 > #5 0xc0bd5b84 at fork_trampoline+0x8 > > I can boot the old kernel at 7.2 and recompile again with debug flags as needed. > > One thing I did try just now was to install 8.2 from the CD ... after > I choose install options and he goes to create the filesystems I get > these error messages: > > > Unable to find device node for /dev/da0s1b in /dev! > The creation of filesystems will be aborted. First, this is not really a question for hackers@. Perhaps stable@, geom@ or fs@ would be better choices. To the subject matter, it seems like you could have an MBR that is reject by code in in 8. Have you tried to get a lit of devices that kernel sees at the mountroot prompt? What are those? It could also be useful to boot from 8 or 9 live disk and examine how the system sees your disks. -- Andriy Gapon
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