Boot Problem after Playing with Powervault

Bret Stern bret_stern at machinemanagement.com
Sat Sep 23 05:42:59 UTC 2006


 

-----Original Message-----
From: redhat-install-list-bounces at redhat.com
[mailto:redhat-install-list-bounces at redhat.com] On Behalf Of Rick Stevens
Sent: Friday, September 22, 2006 12:31 PM
To: Getting started with Red Hat Linux
Subject: Re: Boot Problem after Playing with Powervault

On Fri, 2006-09-22 at 12:19 -0700, Rick Stevens wrote:
> On Fri, 2006-09-22 at 10:47 -0700, Bret Stern wrote:
> > So..
> > 
> > Last night I added a recently purchased Dell Powervault 210s to my 
> > Dell 2450 running Fedora 5.
> > 
> > As I browsed the uninitialized drives on the PowerVault, I 
> > accidentally/on purpose initialized a disk with a linux boot partition.
> > It's just my tinkering habit.
> > 
> > Now my system boots to grub> (that's it). Certainly I hosed my Grub 
> > boot.
> > 
> > Where i'm at..
> > 
> > I found that there were two bootable partitions on the machine.
> > One on sda1, and one on sdb1. I toggled the boot flag on sdb1 (off) 
> > because I only run Linux and sda1 is the logical boot.
> > (Is the above correct thinking). I can always restore the flag.
> > 
> > 
> > I have booted my machine using the Fedora cd and typee "linux rescue".
> > 
> > This found my install and I have chosen to "chroot /mnt/sysimage".
> > 
> > I can see all my data.
> > 
> > When I tried "grub-install /dev/sda", I get the following.
> >  "/boot/grub/stage1 not read correctly"
> > 
> > 
> > What's my next step (maybe I should get into landscaping)  ?
> 
> Well, gee. My first guess is that you're using a separate /boot 
> partition and it's not mounted, so grub-install can't even find the 
> stage 1 boot code.  After the "chmod /mnt/sysimage", try doing a

Grr!  "chroot /mnt/sysimage".  Fingers not working well today!

> 
> 	# mount -a
> 
> That will force all of the other mounts that are normally done in your 
> operating environment, including mounting /boot if it _is_ a separate 
> partition.
> 
> Once that's done, verify that your /boot/grub/stage1 file is 512 bytes 
> in length.  If it is, then try your "grub-install /dev/sda" again and 
> see if it goes OK.  If it does, then enter "exit" twice (first to get 
> out of the chroot environment, second to exit the rescue boot), pop 
> out the CD and see if she'll boot up.
> 
> As for landscaping, I hate raking leaves and mowing lawns (did enough 
> of that when I was a teen 40 years ago).  I have a gardener.  :-)
> 


..sorry about the incorrect bottom posting


Tried the mount -a. Got these two messages

mount: special device LABEL/=boot does not exist
mount: mount point /dev/shm does not exist.

I believe /dev/shm the drive from the Powervault that I
initialized in the LVM Manager.

stage1 is 512 bytes

look forward to the ideas

Bret







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