Jim Laurent - SE Sun McLean VA wrote:
>  I am in the process of installing Nevada build 46.  Because of my 
> existing disk layout, I want to install it in the primary partition 
> where JDS-Linux used to be.  (Who needs JDS-Linux anymore?)
> 
> My current partitioning looks like this:
> 
> Part 0 Windows    0-7805   Primary
> Part 1  JDS-Linux            7806-14048 Primary
> Part 2  Solaris 10 currently installed   14049-26240 Primary
> Extended  FAT32 data        26241-end  Extended partition.
> 
> I want to install NV46 in the JDS-Linux partition. Solaris installer 
> does not like have two Solaris primary partitions on the same disk.   
> When using Solaris partitioning the GUI, I can change the current 
> "Solaris" partion to "PriDOS" and then change the JDS partition to 
> "Solaris" and set the proper size.
> 
> At the final "Ready to Install" screen, the installer reports that it 
> will delete my current partition and create a PRIDOS partition in its 
> place.  This leads to my questions.
> 
> 1. Will this action actually smash my data or simply re-label the 
> existing Solaris partition to PRIDOS (assuming the start and end 
> cylinders are identical)
> 

It should just relabel.

> 2. If my data is preserved, will GRUB be able to boot the solaris in 
> Partition 1 as well as the Solaris in partition 2?
> 

It won't be recognized automatically.  You can probably hack around with 
the GRUB menu and make it work, but I haven't done so.

> 3. Will I need to re-label partition 2 with the "Solaris 2" label?  If 
> so, with which tool? fdisk?
> 

You can re-label, but I don't believe it makes any actual difference in 
the results.

> I'm dying to hit the "Install Now" button, but terrified of re-building 
> my currently installed (and working) OS.
> 

I'd recommend getting a raw dump of the disk before doing any of this, 
because you're outside the configs we support and fdisk geometry 
disagreements are not unknown.  I know a number of people have used g4u 
for this purpose, and there are of course commercial products.

> (PS: as a result of this exersize, I learned that if you delete part 1 
> and recreate it in the same place, it gets a higher number and part 2 
> becomes part 1.  This tends to upset grub as well as vfstab mount entries.
> 

Yeah, there are some oddities in the way fdisk does things.

Dave

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