[ale] Software RAID1 rebuild after HDD failure (How to do?)

[Christopher Fowler]

Run grub in batch mode

[cfowler at cfowler RESCUE]$ cat iso/data/grub.conf 
root (hd0,0)
setup (hd0)
root (hd1,0)
setup (hd1)

Or use the commands above.  Your root would be hd0,2 and hd1,2


On Mon, 2006-07-03 at 10:10, Ryan Fish wrote:
> How would I go about installing GRUB on the second drive?  Can I just use an
> rpm and somehow force it to install on hdc3 (where / lives)?
> 
> Thank you.
> -Ryan
> 
> -----Original Message-----
> From: ale-bounces at ale.org [mailto:ale-bounces at ale.org] On Behalf Of
> Christopher Fowler
> Sent: Sunday, July 02, 2006 6:57 PM
> To: Atlanta Linux Enthusiasts
> Subject: Re: [ale] Software RAID1 rebuild after HDD failure (How to do?)
> 
> On Sat, 2006-07-01 at 02:57 -0400, Jim Popovitch wrote:
> > An alternative way to test is to d/l VMWare server (it's free, but
> > still 
> > pre-release status) and install it on your desktop/laptop.  Then
> > connect 
> > to it from the same system (or another one) and create a virtual 
> > machine.  Edit the virtual machine's settings to give it two drives, 
> > then install CentOS or whatever distro is at the remote site.  Set it
> > up 
> > with full raid working, then shutdown the virtual machine and remove
> > one 
> > of the drives from the config.  Then add a new (third) drive, and use
> > it 
> > as instead of the removed one.  Assuming that you have the time to do 
> > this. ;-)
> 
> I did this on a real test machine and then had to lookup commands to
> make it work again.  One thing I did learn was to make sure I installed
> grub onto both drives.  If the first one failed then the 2nd would not
> boot unless grub was installed.
> 
> My biggest problem was rebuild.  If the machine rebooted many times
> during a rebuild eventually all data was lost and a reformat was
> required.
> 
> 
> 
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