Re: how to install a second or third hard drive

[Flavio Donadio <flavio%donadio.com.br@localhost>]

Al,


I've found these on NetBSD's web site:

http://www.netbsd.org/docs/guide/en/chap-misc.html#chap-misc-adding-new-disk
http://www.netbsd.org/docs/misc/#adding-a-disk

They seem to be old, but there are some differences between what you did and 
what the documents above recommend.


Cheers,
Flavio

On 08/08/2011, at 12:13, Al Zick wrote:

> Hi,
> 
> I am using a SCSI card. I also have a Rev. 2 motherboard.
> 
> Just wondering if a non-root partition should be a or g?
> 
> Thanks,
> Al
> 
> 
> 
> On Aug 8, 2011, at 9:16 AM, Flavio Donadio wrote:
> 
>> Al,
>> 
>> 
>> Are you using the built-in ATA controller or a SCSI card? If you're using 
>> the built-in ATA controller, there are some problems with the Rev. 1 logic 
>> boards used on these machines.
>> 
>> From LowEndMac.com 
>> (http://www.lowendmac.com/ppc/blue-white-power-mac-g3.html):
>> 
>>> The Rev. 1 board isn't stable with many modern hard drives on the built-in 
>>> IDE bus because the controller doesn't support UDMA (MacOS X does an end 
>>> run around this problem by disabling UDMA on the Rev. 1 motherboard).
>> 
>> 
>> [...]
>> 
>>> When buying a blue & white G3, insist on getting a Revision 2 system. The 
>>> best way to make sure you're getting a Rev. 2 motherboard is the "402" 
>>> marking on the CMD646 IDE controller chip.
>> 
>> [...]
>> 
>>> Although this model doesn't support drives larger than 128 GB on its main 
>>> 33 MHz drive bus, the 16.7 MHz bus used for the optical drive supports 
>>> multi-word DMA 2 and may support larger hard drive.
>> 
>> 
>> I have two Rev. 1 logic boards, but I use a very small install of NetBSD on 
>> these machines. It fits a 1GB CF card in an ATA-CF adapter. It's a firewall, 
>> so I run it swapless.
>> 
>> I have mostly forgotten about newfs options, so I can't help you on this 
>> one...
>> 
>> 
>> Cheers,
>> Flavio Donadio
>> 
>> 
>> On 07/08/2011, at 18:51, Al Zick wrote:
>> 
>>> Hi,
>>> 
>>> I have an Apple Mac B&W running NetBSD 4 that I want to add 2 new hard 
>>> drives to (sd1 500GB and sd2 750GB).
>>> 
>>> Here is what I did:
>>> dd if=/dev/zero of=/dev/sd1c bs=8k count=1
>>> pdisk /dev/sd1c
>>> Command (? for help): P
>>> No partition map exists
>>> Command (? for help): i
>>> read failed
>>> Command (? for help): P
>>> Command (? for help): C
>>> First block: 2p
>>> Length in blocks: 2p
>>> Name of partition: data
>>> Type of partition: Apple_UNIX_SVR2
>>> Available partition slices for Apple_UNIX_SVR2:
>>> a   root partition
>>> b   swap partition
>>> c   do not set any bzb bits
>>> g   user partition
>>> Other lettered values will create user partitions
>>> Select a slice for default bzb values: g
>>> Command (? for help): w
>>> Writing the map destroys what was there before. Is that okay? [n/y]: y
>>> Command (? for help): q
>>> disklabel -e /dev/sd1
>>> I changed partition "a" to "g"
>>> newfs -b 2048 -f 16384 /dev/sd1g
>>> 
>>> I ran through the same process for drive sd2.
>>> I then did:
>>> mount -rw /dev/sd1g /backup
>>> mount -rw /dev/sd2g /backup/data
>>> I also added these drives to fstab.
>>> 
>>> As soon as I started writing to /dev/sd2g (the 750GB drive) the system 
>>> crashed and when it booted up it was in single user mode. After removing 
>>> the 2 new drives from fstab it booted fine. My questions are, should I not 
>>> have changed the drive letters in the disklabels and should I run newfs -b 
>>> 4096 -f 32768?
>>> 
>>> Thanks,
>>> Al
>>> 
>>> 
>