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echo: os2hardware-l
to: Kris Steenhaut
from: Daniela Engert
date: 1999-10-20 20:00:17
subject: DaniS506.ADD and removable HD`s

Hi Kris!

Thus quoth Kris Steenhaut to Daniela Engert:
 KS>                       Daniela's S506 ADD - Release 1.0.9           

 KS>      If you have a removable drive which you want to boot from,
 KS> this reportedly      fails. To enable booting from this unit it has
 KS> to be treated as a fixed      one. This can be done with the option
 KS> /!RMV applied to the proper unit.      It is reported also that
 KS> some Syquest drives have buggy firmware which      doesn't report
 KS> properly the support of the removable feature set. To      announce
 KS> these drives to OS/2 a removable drives add the /RMV option to     
 KS> the appropriate unit.

 KS> Afaik, since FP6 the Zips are hardcoded in the OS2DASD.DMD as
 KS> removable harddisks. So, why are you saying this?

I know much too little about OS2DASD to comment on this particular item. In
fact, I have no experiences of my own on booting from removable media other
than floppies. The cited paragraph applies to removable ATA devices (like the
Syquests) only, ATAPI devices (like the ZIP) are a different kind and aren't
controlled by the S506 base driver but the ATAPI filter driver.

The term 'reportedly' means that this statement comes from another user (Allan 
Holm), on who's request these options were introduced. He has two different
firmware revision of his Syquest removable disk one of which has a bug: it
doesn't identify itself as removable. This buggy version enabled him to boot
from the Syquest, the fixed one failed. So, I added the /RMV /!RMV options
pair to bump this particular bit into the proper direction. Users of removable 
ATA disks have the choice now to select between a *removable* disk or a
*bootable* disk.

bye, Dani

--- Sqed/32 1.14/r01354
* Origin: Nachtigall/2,Nuernberg/Ger,+49-911-861319,Z19+ISDN (2:2490/2576)

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