[Oberon] constraints in the A2 Installer.

[peter at easthope.ca]

>From peter at easthope.ca  Tue Feb 10 18:16:16 2015
> A2 has commands Partitions.WriteMBR and Partitions.FileToPartition which  
> should install BootManager just as in NO.  

>From lab.eas at gmail.com  Wed Feb 18 07:28:13 2015
> Does installation really need to change/overwrite the MBR?

>From peter at easthope.ca  Wed Feb 18 19:46:24 2015
> Only if you want to install BootManager.  

Depends on the context and your objective.  My earlier answer 
wasn't complete.  A non-partitioned store doesn't have an MBR 
but can be bootable.  

If a partitioned store has a boot manager working and an OS is 
being installed to an unused part, the configuration of the boot 
manager might need adjustment but the MBR shouldn't change.

If you are making a complete new multi-boot setup on a store, 
then something should be written to the MBR.  Otherwise use 
a boot diskette or something more arcane.

For a much better answer than I can give, review ocp.inf.ethz.ch/wiki/ 
and pertinent articles in the Wikipedia. 

Regards,                            ... Peter E.

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