atom feed2 messages in org.freebsd.freebsd-questionsRe: problems with disk and power.
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Robert NicholsonMay 1, 1996 8:26 pm 
Doug WhiteMay 6, 1996 10:13 pm 
Subject:Re: problems with disk and power.
From:Doug White (dwh@riley-net170-164.uoregon.edu)
Date:May 6, 1996 10:13:04 pm
List:org.freebsd.freebsd-questions

On Wed, 1 May 1996, Robert Nicholson wrote:

1. I've got my machine and an external 4 GIG drive in a APS SR2000 case. The 4 GIG is a Quantum Atlas 34300 I'm using a ASUS TP4N configuration with an DTC 3130B Now, when the power to both items is on ... if I switch my machine off I cannot turn the power on again _until_ I've turned off and on the power to the external enclosure...

2. This ones really bugging me. I've got a 2GIG partition on the external enclosure that I'm booting. Whenever I repower my machine it takes at least two boots to get FreeBSD up and running. IT always stops after inetd at boot time and spurts out. sd1(ncr0:2:0): COMMAND FAILED (4 28)@f1090a00. This happens regularly after switching the machine off and rebooting FreeBSD 2.1. If I then reboot it will stick at the boot partition and won't even execute the kernel. If I switch off and turn everything on again it will fsck and boot up fine.

[spaces trimmed]

I've had goofy problems like this with Macintoshes with external drives. The key is the order in which you turn on the devices. If I remember correctly, you want to turn on the external _first_, wait for it to spin up, then turn on the CPU. I think the problem you're running into is that the device isn't ready by the time FreeBSD gets to it.

Perhaps tweaking SCSI_DELAY may help.