[clue-tech] Compaq Armada 3500 woes

[Christopher Cross]

I think we need to slow down or Bill is going to get lost. He is
working from two different environments and I think it is important
that he knows what the difference is before running commands as root
that will overwright his configuration files. He is booting with a
live cd so I do not think /proc/mounts will match what he wants in his
installed fstab. All he is trying to do is install grub to /dev/sda
and I think instead of trying to make a device file in the chroot that
is allready there in the live environment he can easily just mount the
part of the live environment to the chroot environment before trying
to install grub.

Christopher Cross
g1ccross at gmail.com
(310)536-6392



On Tue, Nov 23, 2010 at 10:51 AM, Jim Ockers <ockers at ockers.net> wrote:
> Bill,
>
> The kernel VFS maintains a list of mounted filesystems in /proc/mounts.  If
> your root (/) filesystem and /boot are not mounted or not found in
> /etc/fstab then some of the tools you're trying to use might complain.
>
> What does "cat /proc/mounts" return?  Is it a list of mounted filesystems
> and devices?  What is in /etc/fstab (do "cat /etc/fstab" to find out).  If
> /etc/fstab is broken or not there, just do "cat /proc/mounts > /etc/fstab"
> to rebuild it.  You will need to be root for that of course.
>
> Then try your grub tools again.
>
> HTH
> Jim
>
> Bill Smith wrote:
>
> Hi Jim, the otuput to the 1st command is: brw-rw---- 1 root disk 8, 0 Nov 23
> 15:28 /dev/sda and the /dev/sda is in yellow
> The output to the 2nd is: mknod: '/tmp/sda': Operation not permitted
> Then I realized I was not root, did that and tried again. Same for the 1st
> output. 2nd output is: back at the prompt, then for grub-install /dev/sda
> the output is, 1st line: grub-probe: error: cannot find a device for / (is
> /dev mounted?). 2nd line: grub-probe: error: cannot find a dvice for /boot/
> (is /dev mounted?). 3rd line: Could not find device for /boot: Not found or
> not a block device>
>
> ________________________________
> Date: Tue, 23 Nov 2010 09:32:47 -0700
> From: ockers at ockers.net
> To: clue-tech at cluedenver.org
> Subject: Re: [clue-tech] Compaq Armada 3500 woes
>
> Hi Bill,
>
> If you ever get a "/dev/sda: not found" type message, please do the
> following to see if it exists:
>
> ls -al /dev/sda
>
> If there is no device node for that device, you either need to mount the
> automagic /dev filesystem that will populate the directory based on the
> device drivers loaded into the kernel, or else consider creating it
> yourself.  IIRC sda is 8,0:
>
> mknod /dev/sda b 8 0
>
> If you can't write to the /dev directory, then create the device node in
> /tmp:
>
> mknod /tmp/sda b 8 0
>
> Then you can use your other commands such as grub-install to access that
> device.  The major & minor numbers on the device node "file" tell the kernel
> what device driver will handle the ioctl()s.  If the SCSI device driver
> chain is not loaded into the kernel then you wouldn't be able to access
> /dev/sda either, so make sure all the necessary driver modules are loaded if
> you have any trouble using a SCSI block device node.
>
> HTH,
> Jim
>
> --
> Jim Ockers, P.Eng. (ockers at ockers.net)
> Contact info: http://www.ockers.ca/pason.html
>
>
> Bill Smith wrote:
>
> I'm a relative newbie, so exactly what are the commands, and in what order?
> Thanks Bill
>
> ________________________________
> Date: Tue, 23 Nov 2010 09:15:40 -0700
> From: g1ccross at gmail.com
> To: clue-tech at cluedenver.org
> Subject: Re: [clue-tech] Compaq Armada 3500 woes
>
> I think you need to mount /dev to to chroot before chrooting. Try mount -o
> bind /dev /mnt/dev. I am not sure but I usually mount proc in the chroot
> also.
> On Nov 23, 2010 9:08 AM, "Bill Smith" <wpsmithii at msn.com> wrote:
>>
>> Hi all, I dug around and found a grub install procedure for Knoppix.
>> Here's what happened. First I did "fdisk -1" and I got 3 partitions as I had
>> installed. The boot was /dev/sda1 and it was listed as ID: 83 ,system:
>> linux, this should be ext3, the start was 1 end was 2374, 19+ Gig. The
>> commands I used as root are as follows:
>> mount -t ext3 -o rw /dev/sda1 /mnt
>> chroot /mnt
>> grub-install /dev/sda
>> The feedback from this was
>> /dev/sda: Not found or not a block device
>>
>>
>> Thanks in advance. Bill
>
> _______________________________________________ clue-tech mailing list
> clue-tech at cluedenver.org http://cluedenver.org/mailman/listinfo/clue-tech
>
> ________________________________
> _______________________________________________
> clue-tech mailing list
> clue-tech at cluedenver.org
> http://cluedenver.org/mailman/listinfo/clue-tech
>
> _______________________________________________ clue-tech mailing list
> clue-tech at cluedenver.org http://cluedenver.org/mailman/listinfo/clue-tech
>
> ________________________________
> _______________________________________________
> clue-tech mailing list
> clue-tech at cluedenver.org
> http://cluedenver.org/mailman/listinfo/clue-tech
>
> _______________________________________________
> clue-tech mailing list
> clue-tech at cluedenver.org
> http://cluedenver.org/mailman/listinfo/clue-tech
>