Too much time wasted installing fedora on raid1

[Denis Leroy]

Peter Jones wrote:
> On Tue, 2005-12-20 at 11:13 +0100, Ralf Ertzinger wrote:
> 
>>On Tue, Dec 20, 2005 at 10:46:18AM +0100, Arjan van de Ven wrote:
>>
>>
>>>well... if the root is brand spanking new.. why would it need a sync?
>>
>>Because it _is_ brand spanking new (and thus unclean from a RAID point
>>of view)?
> 
> 
> Why does that matter?  The parts of it we've written data out to are
> supposed to be in sync already.  The resync should only be making the
> parts that aren't in use yet identical.

Exactly, it's like trying to sync uninitialized memory. Now i believe 
the --assume-clean option of mdadm only works for RAID1 unfortunately.

Also, the layered approach of RAID is why RAID "just works", trying to 
build the redundancy into the filesystem itself would be pure madness. 
There are many excellent OS design books that will explain this much 
better than i ever could.