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a conprehensive CDRW howto for gentoo wintell ide'ers?
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xmorg
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Joined: 24 Sep 2002
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PostPosted: Wed Oct 23, 2002 2:12 pm    Post subject: a conprehensive CDRW howto for gentoo wintell ide'ers? Reply with quote

CD burning is so confusing!
all i gotta say is you people and your freaking (cdrecord) scsi's! Im now more confused than ever, In freebsd of course you just use the ide tool burncd, hehe

I have IDE drives.
as root me do the cdrcord -scanbus gets this output.

bash-2.05a# cdrecord -scanbus
Cdrecord 1.11a34 (i686-pc-linux-gnu) Copyright (C) 1995-2002 Jörg Schilling
cdrecord: No such file or directory. Cannot open '/dev/pg*'. Cannot open SCSI driver.
cdrecord: For possible targets try 'cdrecord -scanbus'. Make sure you are root.

I just love that last message. Somehow it reminds me of MS windows :-P

I did put scsi CD support and SCSI Emulation into my kernel as well as IDE support. I can mount both of my drives and play DVD's on my system with ogle. Also my Grun menu.lst has been appended with the hdc=ide-scsi lines.

what is ide-scsi? is it a module? a device? its not on my system even with the above things in my kernel.

Hint: I am lost, very lost, alot of google search web docs, mention old kernels or /etc/init.d/rc.local witch doesnt exist on my system. Alot of things dont exist on my system :P
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TheCoop
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PostPosted: Wed Oct 23, 2002 2:54 pm    Post subject: Reply with quote

ok, lets start from the top:

in kernel config:
Code:

IDE/ATA etc etc ->->
    <*>SCSI Emulation support
SCSI Support ->
    <*>SCSI Support
    <*>SCSI CDROM support
    <*>SCSI generic support
    No scsi low level drivers

If you've got only 1 cdrom drive you can leave ide cdrom support out, but you might as well leave it in

in your /boot/grub/menu.lst:
Code:
kernel /boot/bzImage <other kernel params here> hdc=scsi
(if hdc is your burner)

change your /etc/devfsd.conf:
Code:

# Give the cdrw group write permissions to /dev/sg0
# This is done to have non root user use the burner (scan the scsi bus)
REGISTER        ^scsi/host.*/bus.*/target.*/lun.*/generic    PERMISSIONS root.c$
....
# Create /dev/cdrw for the first cdrom on the scsi bus
# (change 'sr0' to suite your setup)
LOOKUP          ^cdrw$          CFUNCTION GLOBAL mksymlink sr0 cdrw
REGISTER        ^sr0$           CFUNCTION GLOBAL mksymlink $devname cdrw
UNREGISTER      ^sr0$           CFUNCTION GLOBAL unlink cdrw


reboot, and check your dmesg for something like:
Code:

hda: 117231408 sectors (60022 MB) w/2048KiB Cache, CHS=7297/255/63
hdb: 3173184 sectors (1625 MB) w/128KiB Cache, CHS=787/64/63
hdc: ATAPI 32X DVD-ROM drive, 512kB Cache
Uniform CD-ROM driver Revision: 3.12
ide-cd: passing drive hdd to ide-scsi emulation.
........
SCSI subsystem driver Revision: 1.00
scsi0 : SCSI host adapter emulation for IDE ATAPI devices
  Vendor: SAMSUNG   Model: CD-R/RW SW-216B   Rev: Q001
  Type:   CD-ROM                             ANSI SCSI revision: 02
Attached scsi CD-ROM sr0 at scsi0, channel 0, id 0, lun 0
sr0: scsi3-mmc drive: 32x/32x writer cd/rw xa/form2 cdda tray

if its similar to the above (ie no error msgs) try cdrecord -scanbus again
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Chickpea
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Joined: 03 Jun 2002
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PostPosted: Wed Oct 23, 2002 4:32 pm    Post subject: Reply with quote

I agree with you! Setting up the cdrw burner is very confusing. If it were not for the WONDERFUL people on the forums and "Curious" in particular I would still be crying today.

I have only one slight correction in regard to your /boot/grub/menu.lst it should be hdc=ide-scsi (asssuming hdc is your cdrw)

I also disabled ide cdrom support in my kernel since I only have this one cd device. And I compiled the ide-scsi support in the kernel rather than making it a module.

That is all I have to add....

I hope that helps.

Chickpea
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pjp
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PostPosted: Wed Oct 23, 2002 4:35 pm    Post subject: Reply with quote

Chickpea wrote:
it should be hdc=ide-scsi
I was going to comment on this, but I wasn't completely sure. I thought I'd read a post that suggested either method worked.
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TheCoop
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PostPosted: Wed Oct 23, 2002 7:03 pm    Post subject: Reply with quote

hdx=scsi wirks for me, i suppose both work
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bos_mindwarp
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PostPosted: Wed Oct 23, 2002 8:26 pm    Post subject: Reply with quote

i just compiled in scsi emulation stuff in kernel, added hdc=ide-scsi hdd=ide-scsi (dvd and cdrw), and rebooted :)
my new drives could be used as /dev/sg0 resp. /dev/sg1 in grub for ripping the audio cds.
cdrecord -scanbus shows both drives.

and i am burning with:
cdrecord -dev 0,1,0 etc

no fuss at all really :D
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Chickpea
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PostPosted: Thu Oct 24, 2002 10:08 pm    Post subject: Reply with quote

Well, I am happy to see it is working for you. :wink:

Happy Burning!
Chickpea
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