🚀 go-pugleaf

In article <mdoerner.60.002B53B0@magnus.acs.ohio-state.edu>,
Nuke'd <mdoerner@magnus.acs.ohio-state.edu> wrote:
>In article <4f6k0k$n7u@st-james.comp.vuw.ac.nz> bthomas@promansys.co.nz (Ben Thomas) writes:
>>From: bthomas@promansys.co.nz (Ben Thomas)
>>Subject: Re: Help! Linux can not see SCSI cd drive.
>>Date: Tue, 06 Feb 96 22:12:47 GMT
>
>[Text Deleted]
>
>>I have a virtually the same problem with a CHINON 525 SCSI drive and Adaptec 
>>1522a controller.  The common elements to the above are that I am using EIDE 
>>HDDs and SCSI CD-ROM.  Linux complains that it is not a block device or the 
>>scsi bus times out.
>
>>I am using the Slackware 3.0 November 1995 edition.
>
[...]
>>Linux works fine, I just can't mount the CD - which is a real pain.
>
[...]
>I am having the EXACT same problem as you. I have a SIDE GOLD adapter (aha152x 
>compatible, VL-BUS) and have the Chinon CDS-525 and a Fujitsu 540 meg hd, both 
>SCSI-2. I have no problem with the hard drive, but the CD-ROM refuses to 
>mount! The CD-ROM eventally times out (under both redhat and linux CD 
>Distributions) eventually saying that the superblock is bad or that the wrong 
>file system is being mounted. See my origonal post in the Linux.setup group 
>for all the details. WHAT IS THE @#$%*&^ DEAL HERE? (The scsi FAQ on cd-rom is 
>useless for troubleshooting.)
>

	Everyone seems to be using adaptec scsi and IDE at the same time. 
If this is the configuration you have, then there are a couple of things 
you should be prepared for:

	1) If the scsi card has a scsi bios on board, then it will conflict
with the manster IDE drive in your system.  This is because you cannot have
two "intelligent" controllers in the system at the same time.

	2) If you are lucky enough to have gotten past the above, the 
autodetect code in the kernel will not be able to find the card(the kernel
locates the scsi card by passively searching memory for a particular 
identification string -- if there's no bios, there's no id string).

	3) You can either get around this by adding a command line option
to the LILO prompt at boot up, or you can use a special build of the 
kernel with appropriate values compiled in.  The command line would look
something like:

	LILO: linux aha152x=0x340,11,7,1
where
	0x340 is the port addres in hex
	11 is the IRQ 
	7 is the scsi id of the interface(ideally this is always 7)
	1 is enable/disable scsi reconnect(I use 1 all the time and it
						seems to work fine).

This disables the autodetection code in the kernel.  You should note 
that if you give the kernel bad information about how to find the 
scsi interface, it will panic the first time it tries to interact with the 
interface(in other words, check to be sure that you are passing the right
values before you try it).
	On a final note, the example above works for the aha1520, aha1522 
family of adapters(this is the adapter shipped on a SoundBlaster, too). If
you have a different adapter, you'll need to modify the above accordingly.

	I apologize if I have repeated any of the above information from a
post I put into this conference a week ago -- I did a lot of responding
to email, and I am having trouble keeping  track of what I said last time
this came up.

				Hope this helps some of you....

				--Darrin Smith