Date: Sun, 29 Aug 1999 16:44:33 +0200 (CEST) From: Oliver Fromme <olli@dorifer.heim3.tu-clausthal.de> To: freebsd-stable@FreeBSD.ORG Subject: Re: FYI: ATAPI CDROM dedection problem Message-ID: <199908291444.QAA08709@dorifer.heim3.tu-clausthal.de>
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Hi,
Just for the record, I have a box with a single CD-ROM drive
as master on the second IDE channel (no HDs or any other IDE
devices), and it's detected fine. (Technical data: ASUS TP4N
mainboard, P5-100 running at 75 MHz, old Aztec double-speed
CD-ROM drive, worked since 3.0-current, now 4.0-current, still
working fine.)
By the way, those combinations that involve a slave without a
master on the same channel are _not_ supposed to work. They're
in violation of the spec:
> IDE1, Master IDE2, Slave failed
> IDE1, Slave IDE2, Master failed
> IDE1, Slave IDE2, Slave failed
> IDE2, Master IDE1, Slave failed
> IDE2, Slave IDE1, Master failed
> IDE2, Slave IDE1, Slave failed
So it is not a bug that FreeBSD fails to detect the drives
under those circumstances.
In the other cases where it failed, I guess that the CD-ROM
drive is misbehaving in some way (which is not surprising,
given the crappy specification...).
Regards
Oliver
PS: Buy SCSI. :)
--
Oliver Fromme, Leibnizstr. 18/61, 38678 Clausthal, Germany
(Info: finger userinfo:olli@dorifer.heim3.tu-clausthal.de)
"In jedem Stück Kohle wartet ein Diamant auf seine Geburt"
(Terry Pratchett)
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