RE: Unable to boot into 2.8.rc0

13 Aug 2012

      Hi,

I was able to get past the kernel panic error that i was getting earlier. However this time when i rebooted into Crux for the first time after installation I got the error saying "root filesystem: no such file or directory" and it booted me into a maintenance mode asking me to change read-only file system to rw. I did that and it rebooted itself but gave the same errors again.

Basically I was getting the same errors as listed in this url - https://bbs.archlinux.org/viewtopic.php?id=117733

As per one user who was able to get around the issue by downgrading udev I couldn't do that myself, as i was still in maintenance mode in read-only fs.

Any help/suggestions greatly appreciated.

thanks,
murali.

Date: Mon, 13 Aug 2012 12:44:42 +1000
From: d.rawlins@datafast.net.au
To: crux@lists.crux.nu
Subject: Re: Unable to boot into 2.8.rc0

    On 13/08/12 08:36, Murali Bharadwaj
      wrote:

        Ok thanks for the prompt reply. Yes i was searching
            online when i saw some help related to what you've
            suggested. So i'm going to try one more time and enable
            everything this time ( i did last time as well but i could
            be wrong ). Will post kernel config if it fails again.

        regards,
        murali.

                 From:
                Fredrik Rinnestam <fredrik@rinnestam.se>

                To:
                crux@lists.crux.nu 

                Sent:
                Sunday, August 12, 2012 5:40 PM

                Subject:
                Re: Unable to boot into 2.8.rc0

            On Sun, Aug 12, 2012 at 02:31:23PM -0700, Murali Bharadwaj
            wrote:

            > Hi,

            > 

            > I downloaded the 2.8 iso and went about installing it.
            Everything went through fine including configuring the 3.4.7
            kernel (didn't give any error). I even copied bzImage to
            boot along with System.map. However on trying to boot into
            Crux i got kernel panic saying "VFS: Unable to mount root,
            couldn't find valid ramdisk image", can't remember the exact
            error message but it should be quite similar to what i
            mentioned here.

            > 

            > Can you please tell what could have gone wrong? There
            was a 3.4.7 patch file, i didnt do anything with that, could
            that be the reason or did i miss something else?

            > 

            > The fact i didn't get any error during install but the
            OS not booting is bothering me a lot.

            > 

            > Can someone please help?

            > 

            > Thanks.

            You probably forgot something in the kernel config. Make
            sure you enable

            everything you need to mount the root fs (and not as
            modules, catch 22)

            What has changed since the kernel included on the 2.7 iso is
            the need

            for:

            CONFIG_DEVTMPFS=y

            CONFIG_DEVTMPFS_MOUNT=y

            It's required by the udev version that is shipped on rc0.

            Other common "gotchas" are SCSI-disk support, filesystem and
            your

            ide/sata/scsi controller. Remember that these devices must
            be built into

            the kernel (not as modules) unless you run a initrd. 

            If you still have problems, please post your kernel config
            so we can

            have a look at it.

            -- 

            Fredrik Rinnestam

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    and lspci -k output too.

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