The following message is a courtesy copy of an article that has been posted to comp.os.linux.hardware as well. I wrote: > I've recently installed a 2GB JAZ drive into a PC with an ADAPTEC 2940 > SCSI controller. The JAZ drive is the only thing on the SCSI bus. > > When the PC boots, the ADAPTEC controller identifies the JAZ drive. > > The 2.0.35 kernel identifies the ADAPTEC controller but doesn't see > the JAZ drive. These were the messages displayed during the boot of 2.0.35: | aic7xxx: Warning - detected auto-termination on controller: | aic7xxx: <Adaptec AHA-294X Ultra SCSI host adapter> at PCI 11/0 | aic7xxx: Please verify driver detected settings are correct. | aic7xxx: If not, then please properly set the device termination | aic7xxx: in the Adaptec SCSI BIOS by hitting CTRL-A when prompted | aic7xxx: during machine bootup. | aic7xxx: Cables present (Int-50 YES, Int-68 NO, Ext-68 NO) | aic7xxx: Termination (Low ON, High ON) | (scsi0) <Adaptec AHA-294X Ultra SCSI host adapter> found at PCI 11/0 | (scsi0) Wide Channel, SCSI ID=7, 16/255 SCBs | (scsi0) BIOS enabled, IO Port 0x6400, IRQ 9 | (scsi0) IO Memory at 0xe4000000, MMAP Memory at 0x2805000 | (scsi0) Resetting channel | (scsi0) Downloading sequencer code... 413 instructions downloaded | scsi0 : Adaptec AHA274x/284x/294x (EISA/VLB/PCI-Fast SCSI) 5.0.19/3.2.4 | <Adaptec AHA-294X Ultra SCSI host adapter> | scsi : 1 host. | (scsi0:0:-1:-1) Scanning channel for devices. | scsi : detected total. <snip> | (scsi0:-1:-1:-1) Bad scbptr 255 during SELTO. | (scsi0:-1:-1:-1) Referenced SCB 255 not valid during SELTO. | SCSISEQ = 0x12 SEQADDR = 0xa SSTAT0 = 0x15 SSTAT1 = 0x88 Hmmm, not so good :-( Last night I upgraded this machine to 2.0.36 and mysteriously the problem disappeared: | (scsi0) <Adaptec AHA-294X Ultra SCSI host adapter> found at PCI 11/0 | (scsi0) Wide Channel, SCSI ID=7, 16/255 SCBs | (scsi0) Warning - detected auto-termination | (scsi0) Please verify driver detected settings are correct. | (scsi0) If not, then please properly set the device termination | (scsi0) in the Adaptec SCSI BIOS by hitting CTRL-A when prompted | (scsi0) during machine bootup. | (scsi0) Cables present (Int-50 YES, Int-68 NO, Ext-68 NO) | (scsi0) Downloading sequencer code... 419 instructions downloaded | scsi0 : Adaptec AHA274x/284x/294x (EISA/VLB/PCI-Fast SCSI) 5.1.11/3.2.4 | <Adaptec AHA-294X Ultra SCSI host adapter> | scsi : 1 host. | Vendor: iomega Model: jaz 2GB Rev: E.15 | Type: Direct-Access ANSI SCSI revision: 02 | Detected scsi removable disk sda at scsi0, channel 0, id 4, lun 0 | scsi : detected 1 SCSI disk total. | (scsi0:0:4:0) Synchronous at 20.0 Mbyte/sec, offset 15. | SCSI device sda: hdwr sector= 512 bytes. Sectors= 3915600 [1911 MB] [1.9 GB] | sda: Write Protect is on OK, so I should turn off the auto-termination but at least I can now access the drive :-) Many thanks to those that helped. And a special thanks to the great Linus himself and the cast of thousands that made/make Linux so good. Cheers, Roland. -- Tell me and I'll forget; show me and I may remember; involve me and I'll understand - Chinese Proverb. - To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to [EMAIL PROTECTED]
