[ydl-gen] Creating a clone boot disk

[Joseph E. Sacco, PhD]

Peter,

Good to hear that you are up and running.

The assignment of device labels, sda & sdb, depends upon where the drive
is located in the device chain.  If you move a device to another
location you get a different label.  

Note also Bill Fink's comment about /etc/fstab. The device labels listed
will change for the reasons listed above.

-Joseph

==============================================================================

On Wed, 2005-12-07 at 10:41 +0000, peter.g.harper at magnox.co.uk wrote:
> Joseph,
> 
> I tried again this morning and it worked straight away. The difference this
> time was
> that I had the original disk in the other slot.
> 
> I think I misunderstood what ybin does and by giving it  --boot /dev/sdb2 I
> was actually
> telling it to look at that device at boot time. I thought I was telling it
> where to write the
> boot script.
> 
> Once I was booted with my new disk in /dev/sda I just issued
> 
> ybin -v
> 
> and then it booted quite happily with just that one disk present. It would
> probably have
> worked first time if I'd not used ybin at all, I think that I had already
> done what was necessary.
> 
> Thanks for your help.
> 
> Peter
> 
> 
> 
> 
> 
> 
> "Joseph E. Sacco, PhD" <joseph_sacco at comcast.net> on 06/12/2005 17:06:17
> 
> Please respond to Yellow Dog Linux General Discussion List
>        <yellowdog-general at lists.terrasoftsolutions.com>
> 
> 
> 
> To:         Yellow Dog Linux General Discussion List
>             <yellowdog-general at lists.terrasoftsolutions.com>
> cc:          (bcc: Peter G Harper/Magnox/Berkeley/BNFL)
> Fax to:
> Subject:    Re: [ydl-gen] Creating a clone boot disk
> 
> 
> (Embedded image moved to file: pic28213.jpg)
> Peter,
> 
> Did you edit the yaboot configuration file,
> 
>       /etc/yaboot.conf
> 
> on the clone disk, to reflect the partition names used on the clone
> disk?
> 
> -Joseph
> 
> =======================================================================================
> 
> On Tue, 2005-12-06 at 16:43 +0000, peter.g.harper at magnox.co.uk wrote:
> > I have got a system disk which is starting to fail and I am trying to
> > create
> > a clone of it so that I don't have to start from scratch with installing
> > from the CDs
> > and applying all the patches and configuration that I need.
> >
> > I have created the partition table using pdisk and restored all the files
> > onto
> > the corresponding partitions and the partitions have the correct
> > filesystems
> > on ie sda2 is HFS, sda3 and sda5 are ext3.
> >
> > I used ybin to 'bless' the boot directory,
> >
> > ybin -v -b /dev/sdb2  (new disk was installed in the second slot)
> >
> > When I try to boot from this disk, it gets past the first stage but then
> > failed when it tried to load the second stage bootstrap.
> >
> > Does anyone know what I need to do to get it to load the second stage?
> >
> > I really don't want to have to recompile my kernel etc all over agin if I
> > don't have to.
> >
> > Thanks,
> >
> > Peter
> >
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> joseph_sacco [at] comcast [dot] net
> 
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-- 
joseph_sacco [at] comcast [dot] net