Very Computer

I just installed a SCSI-cdr. It gets detected, but with xcdroast /
cdrecord there comes errors. I suppose I should look at my scsi-setup,
but I don't know exactly what to do. I'm unable to find the device-file,
so I can't try mounting a cd.

Hope someone can give me a hint.

--
Thanks in advance
Tonny (on kernel 2.2.1)

Here's the dmesg:

(scsi0) <Adaptec AIC-7890/1 Ultra2 SCSI host adapter> found at PCI 6/0
(scsi0) Wide Channel, SCSI ID=11, 32/255 SCBs
(scsi0) Downloading sequencer code... 407 instructions downloaded
scsi0 : Adaptec AHA274x/284x/294x (EISA/VLB/PCI-Fast SCSI) 5.1.10/3.2.4
       <Adaptec AIC-7890/1 Ultra2 SCSI host adapter>
scsi : 1 host.
  Vendor: PLEXTOR   Model: CD-R   PX-R820T   Rev: 1.03
  Type:   CD-ROM                             ANSI SCSI revision: 02
Detected scsi CD-ROM sr0 at scsi0, channel 0, id 4, lun 0
(scsi0:0:4:0) Synchronous at 10.0 Mbyte/sec, offset 8.
scsi : detected 1 SCSI cdrom total.
sr0: scsi3-mmc drive: 20x/20x writer cd/rw xa/form2 cdda tray

and some of the info from xcdroast 0.96e:

write track data: error after 0 bytes
CDB:  03 00 00 00 12 00
Sense Bytes: 70 00 02 00 00 00 00 0A 00 00 00 00 04 01 00 00
Sense Key: 0x2 Not Ready, Segment 0
Sense Code: 0x04 Qual 0x01 (logical unit is in process of becoming
ready) Fru 0x0
Sense flags: Blk 0 (not valid)
cmd finished after 0.000s timeout 40s
/usr/lib/xcdroast-0.96e/bin/cdrecord-1.6.1: Input/output error. flush
cache: scsi sendcmd: retryable error
status: 0x2 (CHECK CONDITION)
CDB:  35 00 00 00 00 00 00 00 00 00
Sense Bytes: 70 00 02 00 00 00 00 0A 00 00 00 00 04 01 00 00
Sense Key: 0x2 Not Ready, Segment 0
Sense Code: 0x04 Qual 0x01 (logical unit is in process of becoming
ready) Fru 0x0
Sense flags: Blk 0 (not valid)
cmd finished after 0.000s timeout 120s
Trouble flushing the cache
Writing  time:   50.011s
/usr/lib/xcdroast-0.96e/bin/cdrecord-1.6.1: Input/output error. close
track/session: scsi sendcmd: retryable error
status: 0x2 (CHECK CONDITION)
CDB:  5B 00 02 00 00 00 00 00 00 00
Sense Bytes: 70 00 02 00 00 00 00 0A 00 00 00 00 04 01 00 00
Sense Key: 0x2 Not Ready, Segment 0
Sense Code: 0x04 Qual 0x01 (logical unit is in process of becoming
ready) Fru 0x0
Sense flags: Blk 0 (not valid)
cmd finished after 0.001s timeout 480s

END og message

: I just installed a SCSI-cdr. It gets detected, but with xcdroast /
: cdrecord there comes errors. I suppose I should look at my scsi-setup,
: but I don't know exactly what to do. I'm unable to find the device-file,
: so I can't try mounting a cd.

Try mounting /dev/scd<x>, or /dev/sr<x>, where <x> is the number of
your player (order is determined from the order it is recognised at
startup). When you type dmesg, it will tell you the scsi device for
each disk,cdrom,etc.

Are you by any change using an aic7890 based scsi controller?

I experience read errors with my on-board aci7890 (asus p2b ds) which
don't occur in windos nt when I set the cdrom device speed to 20Mb/s
or lower in ez-scsi bios. The problem occurs in kernel 2.0.36 as well
as 2.2.5.

: sr0: scsi3-mmc drive: 20x/20x writer cd/rw xa/form2 cdda tray

there you have the device name!

--
Kind regards,
                Dennis Bijwaard (remove antispam to reply)

I can mount /dev/sr0 and read files from it without problems.

Quote:> Are you by any change using an aic7890 based scsi controller?

Exactly this one. P2B-S. As you see in the bottom of my previous message.

Quote:> I experience read errors with my on-board aci7890 (asus p2b ds) which
> don't occur in windos nt when I set the cdrom device speed to 20Mb/s
> or lower in ez-scsi bios. The problem occurs in kernel 2.0.36 as well
> as 2.2.5.

Well - at boottime (or dmesg) it says "(scsi0:0:4:0) Synchronous at 10.0
Mbyte/sec" so I guess 10MB/s should be enough.
I'll see if I can change something in the SCSI-bios. Think it says 80MB/s at
all channels. Perhaps I can make the value smaller.

I'll get back to you on this.

--
Thanks for your help
Tonny

There's more info now. dmesg reports the following:

VFS: Disk change detected on device ide1(22,0)
sr0: disc change detected.
VFS: Disk change detected on device sr(11,0)
scsi0: MEDIUM ERROR on channel 0, id 4, lun 0, CDB: Read (10) 00 00 00 05 49 00
00 08 00
Current error sr0b:00: sense key Medium Error
Additional sense indicates L-ec uncorrectable error
CD-ROM I/O error: dev 0b:00, sector 5424
scsi0: MEDIUM ERROR on channel 0, id 4, lun 0, CDB: Read (10) 00 00 00 05 4d 00
00 04 00
Current error sr0b:00: sense key Medium Error
CD-ROM I/O error: dev 0b:00, sector 5428
scsi0: MEDIUM ERROR on channel 0, id 4, lun 0, CDB: Read (10) 00 00 00 05 4c 00
00 01 00
Current error sr0b:00: sense key Medium Error
Additional sense indicates L-ec uncorrectable error
CD-ROM I/O error: dev 0b:00, sector 5424
scsi0: MEDIUM ERROR on channel 0, id 4, lun 0, CDB: Read (10) 00 00 00 05 4e 00
00 03 00
Current error sr0b:00: sense key Medium Error
CD-ROM I/O error: dev 0b:00, sector 5432
sr0: disc change detected.
VFS: Disk change detected on device sr(11,0)
ISO 9660 Extensions: Microsoft Joliet Level 1
ISOFS: changing to secondary root
scsi0: MEDIUM ERROR on channel 0, id 4, lun 0, CDB: Read (10) 00 00 00 05 39 00
00 08 00
Current error sr0b:00: sense key Medium Error
Additional sense indicates L-ec uncorrectable error
CD-ROM I/O error: dev 0b:00, sector 5348

xcdroast says:
Start Copying 333924 Blocks (652 MB)
Read-error on /dev/sr0

--
Any help appreciated
Tonny

: scsi0: MEDIUM ERROR on channel 0, id 4, lun 0, CDB: Read (10) 00 00 00 05 49 00

Could be a defective cd, did you try different ones?

Or there could be something wrong with termination, the LVD/Ultra2 port
should be terminated with the supplied active terminator, and in the
asus-bios all termination options should be set on.

And don't connect the UW cable to the connector when you don't have any
devices connected (or put a terminator on it), as the loose end at the
back of your computer might degrade your signal.

Is the last device of the scsi chain that your cdrom is part of terminated?

--
Kind regards,
                Dennis Bijwaard (remove antispam to reply)

Now I did. My original InfoMagic Linux cd copies witout problems.

At the moment however, I disabled termination in scsi-bios and the speed on the id
where the cd is has been set to 10MB/s. This Plextor drive is the only scsi-device
on the chain and it's termination is set to on. Hope this is correct. Or should I
set scsi-bios's termination to on?

Now I'll try making a new image and see if the thing burns.

Thanks for your time

--
Tonny

:> Could be a defective cd, did you try different ones?

: Now I did. My original InfoMagic Linux cd copies witout problems.

Perfect!

: At the moment however, I disabled termination in scsi-bios and the speed on the id
: where the cd is has been set to 10MB/s. This Plextor drive is the only scsi-device
: on the chain and it's termination is set to on. Hope this is correct.
: Or should I set scsi-bios's termination to on?

The termination should be set to on in the asus-bios, the ez-scsi
termination options are not supposed to make any difference, but I set
them to on for clarity. Sorry, if this was not clear in my previous posting.

: Now I'll try making a new image and see if the thing burns.

Don't blame me when it fails, I told you to set all scsi termination options
to on. The utrawide/narrow termination in asus-bios should only be disabled
when you're using both connectors at the same time. The ultra2 connector
is separated by the other scsi chip and should always be on in asus-bios
(I can't think of a reason to set it to off).

: Thanks for your time

Well I hope someone that sees my problem again in another context replys.

--
Kind regards,
                        Dennis Bijwaard (remove antispam to reply)

Success :-). I did burn 290MB of Linux downloads in about 10 minutes. Looking forward
to see if it also runs at 8x speed ...
And ... I did it with the termination disabled in scsi-setup. I will enable it next
time I boot the machine.
The trouble I had with reading the first cd .... probably because it's a multisession
joliet thing. Still can't read it with xcdroast-0.96e, but I can mount it and copy
files. Hmmmm.

Quote:> : Thanks for your time

> Well I hope someone that sees my problem again in another context replys.

Great that we can help each other out, worldwide.

--
Peace brother :-)
Tonny