[WBEL-users] RAID {Scanned}

[Scott Silva]

Scott Silva wrote:

>If I have an existing system running sw RAID, no boot disk...how do I go
>about creating a boot disk from an already running system?
>
>Thanks,
>
>Arif
>
>-----Original Message-----
>From: whitebox-users-bounces at beau.org
>[mailto:whitebox-users-bounces at beau.org]On Behalf Of Scott Silva
>Sent: Thursday, April 14, 2005 5:08 PM
>To: whitebox-users at beau.org
>Subject: Re: [WBEL-users] RAID
>
>
>Alon wrote:
>  
>
>>I actually found an email from a coleague who did a semi-walkthrough
>>with me on the setup.
>>I know the HowTos are great, but they are very technical.
>>I can read them but I find that they are hard to implement as they are
>>explaining the benefits, and suggest
>>that You should configure.. etc.. but no real steps and orders of what
>>to click.
>>So it feels like you are invited to this great party.. and you are
>>standing in front of this door,.. and you hear
>>the party going and everyone excited, but you can't open the door
>>because it has a combination lock.
>>
>>We had some other issues with our server and actually returned it back
>>to the supplier and we are getting
>>a new server instead.
>>
>>Since I have the old instructions of how I've done it last time, I'm
>>going to actually try and build a picture
>>by picture of screen shots of how I configured the RAID-1 (for the
>>dummies like me who need someone
>>to hold their hands).
>>
>>Here is another thing:
>>
>>With the LVM option, I never actually had any experience.
>>It would be great to play with it,. the only problem that I'm having is
>>that I'm never having the physical hardware
>>long enough to play with it and experiment with it.
>>
>>But,. while I'm on that subject, I remember that when I did the RAID-1
>>option few months ago, I tried to test it
>>and see what happens if I pull one of the HDs out and try to connect
>>them one at a time to simulate a
>>HD's failure.
>>To my understanding, I was expecting to see both HDs (each in his turn)
>>boot up and no problem.
>>However, I found that only one of them was booting up correctly.
>>
>>Was I missing something? (very likely).
>>Would I encounter something like that with the LVM?
>>    
>>
>
>You still need some means to boot if the failed drive is the one with
>the bootsector  on it. I have a boot floppy with grub on it, all set up
>to boot from the mirror drive just in case. I have several copies, and
>leave one part way into the floppy drive.
>If you were creative and careful when you updated your boot loader, you
>could probably just swap the failed boot drive with the mirror.
>
>
>  
>
run mkbootdisk. It will make a syslinux boot disk with your current boot 
kernel and initrd.
Run the command by itself to get the syntax, but it is something like this;
mkbootdisk --device /dev/fd0 kernelname
You get kernelname from    uname -r


 
This message has been scanned for viruses and
dangerous content by the San Gabriel Valley Water Co.
MailScanner, and is believed to be clean.

-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://beau.org/pipermail/whitebox-users/attachments/20050415/9a24daef/attachment.htm