backup & low downtime for home network

[Chris Aitken]

Brandon Sandrowicz wrote:

>On 12/6/07, Chris Aitken <chris-n/jUll39koHNgV/OU4+dkA at public.gmane.org> wrote:
>  
>
>>Okay, I set Master and Slave on each IDE cable. I'm starting up the
>>computer now (I'm installing ubuntu 7.10). The first thing I see is,
>>
>>The folowing configuration options were automatically updated:
>>
>>Disk: 137438MB   WDC WD1600AAJB-00PVA0
>>CD-ROM: CDD-1480
>>
>>The problem is that the salesman told me these are 160 GB drives. I just
>>spoke with a guy at the local Krazy Krazy - he says that the "DOS on the
>>motherboard" uses the missing 22 GB. Is that true? I didn't know CMOS
>>settings were DOS. And I'm surprised it needs 22 GB of hard disk space.
>>That's bigger thatn the biggest hard drive I've ever owned (which was 20
>>GB until now).
>>
>>Also, I'm surprised that the second hard drive (Master on the other IDE
>>cable) wasn't detected - or maybe that is going to be on the next POST
>>output message...
>>
>>Chris
>>
>><snip>
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>>    
>>
>
>137GB is a limit of some old motherboards.  The IDE controller can't
>address more space than that.  If you get a PCI IDE controller, you
>can have one with a newer IDE controller that can address all of that
>space.
>  
>

Then how come ubuntu sees all the space now?:

chris at cpc:~$ df
Filesystem           1K-blocks      Used Available Use% Mounted on
/dev/md0              48062344   2412188  43208684   6% /
varrun                  192352        92    192260   1% /var/run
varlock                 192352         0    192352   0% /var/lock
udev                    192352        92    192260   1% /dev
devshm                  192352         0    192352   0% /dev/shm
/dev/md2             105288472    228568  99711472   1% /home
tmpfs                   192352     34696    157656  19% 
/lib/modules/2.6.22-14-generic/volatile
chris at cpc:~$

Can an OS work around a hardware limitation?

>That sales person is talking through their ass.  
>
He probably was, but now I'll need more information to know for sure. 
And I thought that was a moustache...

:)

Chris

<snip>
--
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