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Linux - Laptop and Netbook Having a problem installing or configuring Linux on your laptop? Need help running Linux on your netbook? This forum is for you. This forum is for any topics relating to Linux and either traditional laptops or netbooks (such as the Asus EEE PC, Everex CloudBook or MSI Wind).

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Old 09-24-2004, 01:16 AM   #1
nard
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Registered: Sep 2004
Location: vancouver bc canada
Distribution: demudi (debian)
Posts: 1

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trouble with scsi-ide emulation


hi, i'm a relative linux newbie, and this is my first post/plea for help! i've browsing the forums, how-tos and faqs without finding a reference to a similar problem, so i hope that this isn't the millionth post about this. using a fujitsu s2020 (athlon 2100+XPM, with an ide dvd-cdrw) running demudi with its 2.4.25 kernel.

i'm trying to use k3b (which seems installed just fine, since it runs) but it can't find any "read" devices (i have only the one internal dvd/cdrw). the scsi-ide emulation seems to be working, but it looks like it finds 7 versions of my toshiba dvd-cdrw drive as scsi devices. in the k3b configuration menu, it lists all 7 under "write devices" and none under "read". i read somewhere about LUN or something, but i don't know what that is yet...

here's my fstab:

proc /proc proc defaults 0 0
/dev/hda2 / ext3 defaults,errors=remount-ro 0 1
/dev/hda5 none swap sw 0 0
/dev/scd0 /media/cdrom0 iso9660 rw,user,noauto 0 0


and (i hope all of) the pertinent lines from /var/log/messages:

Sep 23 21:30:22 localhost kernel: hdc: TOSHIBA DVD-ROM SD-R2412, ATAPI CD/DVD-ROM drive
Sep 23 21:30:22 localhost kernel: ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
Sep 23 21:30:22 localhost kernel: ide1 at 0x170-0x177,0x376 on irq 15
(some other stuff)
Sep 23 21:30:22 localhost kernel: SCSI subsystem driver Revision: 1.00
Sep 23 21:30:22 localhost kernel: hdc: attached ide-scsi driver.
Sep 23 21:30:22 localhost kernel: scsi0 : SCSI host adapter emulation for IDE ATAPI devices
Sep 23 21:30:22 localhost kernel: Vendor: TOSHIBA Model: DVD-ROM SD-R2412 Rev: 1F16
Sep 23 21:30:22 localhost kernel: Type: CD-ROM ANSI SCSI revision: 02
Sep 23 21:30:22 localhost kernel: Vendor: TOSHIBA Model: DVD-ROM SD-R2412 Rev: 1F16
Sep 23 21:30:22 localhost kernel: Type: CD-ROM ANSI SCSI revision: 02
Sep 23 21:30:22 localhost kernel: Vendor: TOSHIBA Model: DVD-ROM SD-R2412 Rev: 1F16
Sep 23 21:30:22 localhost kernel: Type: CD-ROM ANSI SCSI revision: 02
Sep 23 21:30:22 localhost kernel: Vendor: TOSHIBA Model: DVD-ROM SD-R2412 Rev: 1F16
Sep 23 21:30:22 localhost kernel: Type: CD-ROM ANSI SCSI revision: 02
Sep 23 21:30:22 localhost kernel: Vendor: TOSHIBA Model: DVD-ROM SD-R2412 Rev: 1F16
Sep 23 21:30:22 localhost kernel: Type: CD-ROM ANSI SCSI revision: 02
Sep 23 21:30:22 localhost kernel: Vendor: TOSHIBA Model: DVD-ROM SD-R2412 Rev: 1F16
Sep 23 21:30:22 localhost kernel: Type: CD-ROM ANSI SCSI revision: 02
Sep 23 21:30:22 localhost kernel: Vendor: TOSHIBA Model: DVD-ROM SD-R2412 Rev: 1F16
Sep 23 21:30:22 localhost kernel: Type: CD-ROM ANSI SCSI revision: 02


thanks in advance for any help!
 
Old 09-24-2004, 08:26 PM   #2
d0odman
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Registered: Sep 2004
Location: CA, USA
Distribution: Slackware 10.2
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LUN

It's a kernel compile option, 'Probe all LUNs on each SCSI device' I believe it's a default kernel compile option on most of the major distributions. I have it turned on on my default Slackware 10 install, but don't get the multiple drive business in my logs for my CD-RW drive.

If you use lilo to boot your distribution, add the line:

append="hd(x)=ide-scsi

to your lilo.conf file. hd(x) is where your burner is. My line reads: append="hdb=ide-scsi" since my burner is on /dev/hdb Check out where your burner is on boot next time, to see where it is. There's usually some interesting message that comes up saying DVD-RW or something along with where it's attached to.
 
  


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