Archos Jukebox Recorder and OS/2

The Archos Jukebox Recorder is a portable MP3 player which may also be used as an external USB harddisk. The device is USB mass storage class compliant and uses FAT32 as the filesystem. This HowTo describes a way to use this player with OS/2. For eCS users things are slightly different because of LVM. If you run eCS make sure to read the documentation of DaniDASD. The solution described here isn't perfect yet but at least it works for me ;-).

1 Requirements

You need the following drivers to use the Jukebox:

FAT32 filesystem driver V0.94 made by Henk Kelder. This is an installable file system driver so OS/2 may read FAT32 partitions.
DaniDASD V1.4.4 or above. This is an enhanced version of the OS/2 DASD manager OS2DASD.DMD so OS/2 may recognize FAT32 partitions.
Chris' USB mass storage driver. The IBM mass storage drivers can't deal with the controller chip used in the Jukebox so this modified driver must be used. Additionally this driver changes the external hard disk from a fixed disk to removable disk.

2 Installation

DaniDasd

Follow the instructions given in the documentation coming with daniDASD. You'll end with the following line in your CONFIG.SYS:

  [...]
  REM BASEDEV=OS2DASD.DMD 
  BASEDEV=DANIDASD.DMD
  [...]

FAT32-IFS

Install the FAT32-IFS by adding the following lines to your config.sys and copying the helper programs cachef32.exe, monitor.exe and f32stat.exe to a directory on your path and the DLLs to a directory on LIBPATH.

  [...]
  IFS=D:\OS2\FAT32.IFS /EAS
  CALL=D:\OS2\CACHEF32.EXE
  [...]

It's not necessary to install partfilt.flt because DaniDASD already helps OS/2 to recognize FAT32.

USB drivers

Add the following lines to your CONFIG.SYS:

  [...]
  BASEDEV=CWUSBUHC.SYS /V       <-- Driver for UHCI chipsets. For OHCI chipsets use CWUSBOHC.SYS.
  BASEDEV=CWUSBD.SYS /REQ:USBUHCD$,USBOHCD$,USBEHCD$,CWUSBUHC$
  BASEDEV=CWUSBMSD.ADD /V /FLOPPIES:0 /REMOVABLES:1 /FIXED_DISKS:0 /FORCE_TO_REMOVABLE
  [...]

If you already have the USB base drivers (USBUHCI.SYS/USBOHCI.SYS, USBD.SYS) installed only add the mass storage driver CWUSBMSD.ADD.

Now reboot so the new drivers are loaded.

3 Usage

In your drive folder you find a new removable drive object even without the Archos attached. Turn your Jukebox on and connect it to your USB port. Wait a few seconds so the device may be found by OS/2.

Before disconnecting the device make sure to "eject" it using the eject command! This will write the cache contents to the drive if not yet done.

4 Problems

FAT32-IFS was not made for removable devices, so one has to face a few minor problems. On every shutdown disks are normally marked as clean. Without this mark CHKDSK is run on next boot.

If you eject the USB disk the disk remains dirty. After the next attach use F32STAT.EXE x: /FCLEAN to mark the disk as clean so OS/2 may write on it. If you removed the device without eject or you're not sure eject succeeded you should run CHKDSK on the newly attached drive.
Because the drive is dirty the first access to the drive letter will need some time. After this first access everything is fast as usual.
Disconnect the device from your system before shutting down or the shutdown may hang.
The EJECT command sometimes fails with an error message. Nevertheless the buffers are written to disk and the device is unmounted. You may check this with the monitor command coming with FAT32-IFS.
An access to the drive letter after unmounting (eject) will automatically remount the drive.

5 Author

http://www.geocities.com/SiliconValley/Sector/5785/index.html

http://www.os2world.com/cdwriting

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