Path: utzoo!attcan!uunet!ism.isc.com!ism780c!support From: support@ism780c.isc.com (Support account) Newsgroups: comp.unix.sysv386 Subject: Re: SCSI tape install problem with ISC 2.2 Message-ID: <49334@ism780c.isc.com> Date: 9 Oct 90 18:30:47 GMT References: Reply-To: support@ism780c.UUCP (Support account) Organization: Interactive Systems Corp., Santa Monica CA Lines: 17 In article larry@focsys.uucp (Larry Williamson) writes: > >I've installed a Wantek 5125es tape drive in our ISC2.2 system. I >can't open to the new device. Using dd(1) to open /dev/tape, it fails >with the error message... > dd: cannot create /dev/tape: No such device or address > One more thing to check would be DMA channel settings. In software, this parameter is contained the rightmost field of the file /etc/conf/cf.d/mdevice (documented in mdevice(4)), in this case on the "tape" line. For this particular device, the field should be either 5 or 6, matching the setting in hardware. If the software doesn't match hardware, or if that field is set to "-1" (meaning device doesn't use DMA), this error message can result. ...