Messages in this thread |  | | Date | Wed, 22 Aug 2001 22:42:49 -0500 | From | mhobgood@inet-dir ... | Subject | Re: [PATCH,RFC] make ide-scsi more selective |
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Well, I just double checked my system. Sure enough I'm using ide-scsi along with hdd="ide-scsi" with lilo. It grabs hdd, which is my HP-7200 CD-RW and leaves hdc, which is my DVD alone. I've no trouble at all in reading or writing to hdd; no different kernel images, nothing. I use modules and have them normally loaded at boot time since I routinely use both drives to read from. My understanding was that I only needed the hdd="ide-scsi" in lilo to prevent ATAPI from grabbing all the drives it found. BTW, everything pertaining to scsi is a module on this system.
Cordially, Mike Hobgood
On Wed, Aug 22, 2001 at 03:39:12PM -0700, Nicholas Knight wrote: > On Wednesday 22 August 2001 03:00 pm, Ion Badulescu wrote: > > On Wed, 22 Aug 2001, Nicholas Knight wrote: > > > Here's an end-user perspective for you... I just spent 2 days trying > > > to figure out how to use my CD-RW drive to read when using ide-scsi, > > > before I finnaly realized that I had to do it by disabling ATAPI CD > > > support and enabling SCSI CD support.. > > > > Just doing hdX=scsi would have been enough, however. Except it doesn't > > work (currently) if ide-scsi is a module. > > Could you elaborate on this? I almost never use modules for my primary > desktop system, SCSI emulation support and SCSI generic driver were both > compiled in, and I had "hdc=ide-scsi" and later also tried "hdc=scsi" and > > I was unable to read from it with any device, /dev/sr0 /dev/sda /dev/scd0 > were all dead-ends, but I was able to WRITE just fine... I just don't > want to reboot every time I want to write to the drive, nor reboot when I > want to READ from it. > > Disabling ATAPI CD-ROM support, and enabling SCSI CD-ROM (along with SCSI > emulation support and SCSI generic support) worked, and now I just access > both my CD-RW drive and my DVD-ROM drive through /dev/sr0 and /dev/sr1. > > My primary concern here is other users who haven't figured this out, I > know at least one ATAPI/IDE CD-R(W) in Linux HOWTO tells the user that > they'll have to use two seperate kernel images, one to allow reading from > their drive and the other for writing, infact that was my original method. > > > I agree with Alan that the problem is the grab-on-load strategy that > > ide-scsi (and ide-cd for that matter) uses. I am willing to look into > > changing that to grab-on-open but I'm not sure if the change is an > > appropriate one for a stable series kernel -- it looks pretty > > non-trivial. > > > > Ion > - > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/ - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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