Hardware Titbits VIII

Summary:

• Configuring An IDE CD/RW Drive On ML 8.1 By Hand
• Configuring An Agfa Snapscan E20 Scanner

'Hardware Titbits' collects instructions on how to set up hardware devices which haven't been detected or configured by Mandrake Linux.
You are welcome to contribute ? a titbit, too1.1

Configuring An IDE CD/RW Drive On ML 8.1 By Hand

(Contributed by Mandrake Linux user Gerard Gilbert)

Here are the post installation procedures for installing or setting up a CD-R/W on LM 8.1. I have a Mitsumi CR4801TE CD-R, a very common CD-R1.1 Still it was never detected during the install of any Mandrake OS.

Find out which is the 'real' device name for your burner:

ls -l /dev/cdrom

{tom: Sometimes this might not show the information you need. Try

dmesg | grep CD

instead. You will find the 'real' device name in front of the brand name of the drive then.}

I will assume it's '/dev/hdc'. If your system features two CD drives, you'll have to find out whether it's either '/dev/cdrom' or '/dev/cdrom1' by exploring '/proc/ide' and adapting the next steps accordingly {tom: or use the command I mentioned above}.

• As 'root' edit the '/etc/modules' file and add this line:

scsi_hostadapter

• As 'root' edit '/etc/modules.conf' and add this line:

probeall scsi_hostadapter ide-scsi

• As 'root' open the file '/etc/lilo.conf' in an editor {tom: Or use the Mandrake Control Center, module 'Boot', submodule 'Boot Config'}. Scroll down about six lines till you see the line that starts with:

default =

Now find the line that starts with:

label =

default =

append =

hdc=ide-scsi

after the

devfs=mount

#Example of a lilo.conf entry, this is not the complete
file.#
boot = /dev/hda
map = /boot/map
timeout = 100
prompt
message = /boot/message
default = 2417-20smp
vga = normal
read-only
install=/boot/boot.b
keytable=/boot/us.klt
lba32
menu-scheme=wb:bw:wb:bw
image = /boot/vmlinuz-2.4.17-20mdksmp
label = 2417-20smp
vga = 788
append = " devfs=mount hdc=ide-scsi"
root = /dev/hda1

• Don't forget to run 'lilo' after you edit but before you reboot1.1

• Reboot.
• Test: Put a data CD into your burner. As 'root' mount it with

{tom: If you have more than one CD drive, you might have to create a mount directory with mkdir /mnt/cdrom2 first, since '/mnt/cdrom' is already in use by your other drive.}
Note the different device file, your IDE drive is handled like a SCSI CD-R(W). Check your scd0 entry in /dev directory. It should point to somewhere like 'scsi/host0/bus0/target0/lun0/cd'.

• Use the Mandrake Control Center, module 'Hardware', submodule 'Mount Points' to create an fstab entry for this device.

Configuring An Agfa Snapscan E20 Scanner

(Contributed by Mandrake Linux user max)

I had a look at the SANE USB site before choosing the scanner, but still wasn't too confident...

Then I found this German web page on configuring the Snapscan which helped a lot, but I found that the Sane packages supplied with Mandrake 8.1 didn't need upgrading - I only needed to do the following (as 'root'):

• Create the device file for the scanner: mknod ––mode=660 /dev/usbscanner c 180 48
• Setting permissions: chown root:scanner /dev/usbscanner
• Edit '/usr/local/etc/sane.d/snapscan.conf' so that only '/dev/usbscanner' is uncommented.
• Edit /etc/modules and add
  

  modprobe usbcore<br> modprobe usb-uhci<br> modprobe scanner vendor=0x06bd product=0x2091

• Create the script 'snapscan' in the directory '/usr/share/snapscan' {NB the actual script is all one line}:
  

  #1.1 /bin/sh<br> ~#<br> ~#script to upload scanner agfa e20 firmware<br> /usr/share/snapscan/agfafirm -v /dev/usbscanner /usr/share/snapscan/snape20.bin

• Download agfafirm .
• Get 'snape20.bin' from the CD that came with the scanner.
• Copy 'snape20.bin' and 'agfafirm' to '/usr/share/snapscan/'
• Make 'snapscan' executable': chmod 755 snapscan
• Add relevant users to group scanner (e.g. with '~UserDrake').
• Create a link from to '/usr/share/snapscan', called '/usr/bin/snapscan': ln -s /usr/share/snapscan /usr/bin/

Sometimes it doesn't work, and then it's just a case of switching the scanner off and on again, then rerunning the snapscan script.

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Revision / Modified: Mar. 16, 2002
Author: Tom Berger

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