fc3 - raid 1 setup problems

Jim Cornette fc-cornette at insight.rr.com
Thu Mar 3 12:22:28 UTC 2005


rado wrote:
> 
>>>in Druid:
>>>
>>>>new>hdb1 only>software RAID>fill to 102mb>primary partition checked
>>>>new>hdb2 only>software RAID>fill to 114369
>>>
>>>new>hdb3 only>swap>fill to 512
>>>new>hdc1 only>software RAID>fill to 102mb>primary partition checked
>>>new>hdc2 only>software RAID>fill to 114369
>>>new>hdc3 only>swap>fill to 512
>>>
>>>
>>>>RAID>create device md(0) mountpoint = /boot >hdb1,hdc1 checked
>>>>RAID>create device md(1) mountpoint = / > hdb2, hdc2 checked
>>
>>That looks proper.
>>
>>
>>>that's bout it...chose next and we on the way...starts installing and
>>>whammo...no disk space grrrrrrrrrrr ...system will reboot...just hit ok
>>
>>I don't think that is a RAID related problem.
>>
>>http://www.fedorafaq.org/fc1/#IntelD845
>>
>>I would try to process installation with "linux ide=nodma" booting. Or
>>see the other hints regarding the different hardward.
> 
> 
> ok I did "linux ide=nodma" ....it looks like that was the problem!
> 
> but now that opens up another can of worms. so now, yes, I am sure that
> the problem was/is in the hardware and not w/my raid configuration.
> during this install(which is still going on) this system has lost at
> least 90% of it's speed! Considering that w/out dma, everything has to
> come and go thru the processor really dragging the system down...then
> also the type of operation we are asking the system to do; write to 2
> hard drives instead of 1, puts more stress on the processor. It just
> doesn't seem to be the route to go. 
> 
> I am going to let it finish installing....2 1/2 more hrs...let it boot
> up and I am really considering swapping the motherboard out w/a spare
> slot A I have here and try installing normally.
> 
> At least we did narrow down the problem thx to Alexander's suggestion 
> 
> john rose
> 
> 
> 
> 

You might try to remove the ide=nodma from the grub.conf file to see if 
the system works with dma. I believe that the option is inserted in the 
grub.conf file if you use the paranmeter during installation.

Jim




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