Messages in this thread | | | From | Keith Rohrer <> | Subject | Re: ide.c question! | Date | Mon, 2 Jun 1997 13:56:44 -0500 (CDT) |
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> > On the other hand, my cheapo IDE cd-rom doesn't always probe successfully > > on boot. It would be nice to have such a feature anyway. > > > > I'm also having problems with IDE CD-ROM drive. But it looks more like a > kernel problem, not that drive is so cheap. :) > > When I poweron machine, everythingis OK, kernel recognizes CD-ROM: > > hdc: GCD-R580B, ATAPI CDROM drive > > If I now reboot Linux, CD won't be recognized again. Looks like Linux > leaves it in some strange state. Error message is: > > hdc: no response (status = 0xd1) The system has to have been on for a little while (i.e. the drive has to go to sleep) before this will happen to me. However, "a little while" isn't long at all, and when I reboot to DOS, even BTC's provided DOS drivers can't get more out of the drive than that it exists (the BIOS autoprobe guesses it's a Mode 0 device and takes ages to do it...then again, it takes ages to autoprobe for stuff I told the BIOS isn't there!). I think I've also seen (status = 0x80) instead of 0xd1 here.
Additionally, sometimes I've seen a linux kernel think there's a device slaved to the CD-ROM (false) that it can't even guess what it might be, and correctly assumes that it was a glitch. I can't reproduce that right now, which leads me to believe either it's the other machine's chipset (I upgraded the motherboard recently) or a bug that has been fixed.
Keith
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