Very Computer

Low!

I am currently using (well, trying to use...) a Philips roaster on an
Adaptec 2940UW with cdrecord-1.4.

The problem:
It does not work under Linux!!
I can burn CDRs with Gear/Win *shudder* with *zero* problems, but when I
try the same under Linux, the CDRs are *only* readable by burners but
not by trivial CD-readers!!

I ruined a big bunch *sigh* of CDRs under Linux, even tried different
configurations (en-/disable disconnect, checked/changed termination,
different writing software [cdrecord, xcdroast/cdwrite], etc.), but no
chance (under DOS it works always...).

IMHO there is something wrong with the "fixation" under Linux, and it
has something to do with the AHA2940UW kernel drivers, because

a) if I burn a multi-session (for example!) CDR under Linux, it is not
readable by any CD-drive, but when I then write a second session on this
CDR under Gear/Win, both session work correctly on every CD-drive !?!

Although, when I try the option "Just Fixate a CDR" Gear says something
like "There is no unfixed session on this CDR!"

b) other people are not having any trouble using cdrecord and the
CDD2600, but they use other controllers like NCR, etc.

c) it works under DOS with exactly my configuration!

Did anyone have the same experiences? Maybe solved the problem??

Desparately

Michael

p.s.: see below for soft-/hardware...
p.p.s.: sorry about my poor english, I am out of training :-)

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POLICE!! POLICE!! Signature SIGnapped!!

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Hardware:

Adaptec AHA2940UW (BIOS Rev. 1.23)
Philips CDD2600 (Rev. 1.07)
Toshiba XM-3601B (Rev. 0725)

===========
Software:

Linux 2.0.30
cdrecord-1.4
xcdroast-0.96 (cdwrite 2.0??)

Seems to be a Problem with FIXING the CDR - but noone can say
how it is solved .. maybe downgrade to an 2.0.27 Kernel
(I use the 2.0.29 - that worked ONE-time - but only ONCE)
The way to solve it meanwhile ... burn an 2nd Image again on the disc
That shoeld work ...

BTW: Im usig the equivalent of the Philips 2600 - the HP 6020i (same
Model in hardware)

After some research, it points out that the reason was a wron set up of
te bios in the host adapter.

The Linux CD-R faq is wrong !!!!!!

Never use your host adapter with disconnect reconnect disabled.

THe best set up is to enable dis/re and sync transfer.

If the dis/re is disabled, the following happenes:

        Fixating takes ~ 3 minutes.....
        If in that time the system wants to do a sync(2),
        it finds out that it cannot get the bus for a long time.
        A bug in the SCSI subsystem then tinks that the best solution
        is to reset the SCSI bus. The result is a damaged fixation.

        Have a look at your system console messages.

Joerg

N.B. If a disk is not readable on other drives than the redcorder there is
another possible reason: Yellow/gold disks have very low contrast and are
not readable on many CD drives.

To make sure that this is not the reason for your problems, try Green or blue disks.
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