Start problems on a IMB 600
Hallo, ich habe soeben versucht DexOS auf meinem alten IBM 600 zu installieren, allerdings hat es nicht geklappt. Ich habe mir diese Datei: Dexiso.zip (Use your cd burn software, to make a bootable DexOS CD.) heruntergeladen und auf CD gebrannt. wenn ich nun starte kommt diese Fehlermeldung: "A:\LOADING DRIVERS... Error, Can not detect ram size or below 8MB" And now in english: Hello, i tried to install DexOS on my old IBM 600 but it diden't work. I downloaded the file Dexiso.zip (Use your cd burn software, to make a bootable DexOS CD.) and burned it on cd. When i startet my laptop this error-message was there: "A:\LOADING DRIVERS... Error, Can not detect ram size or below 8MB" Wo liegt der Fehler und was kann ich dagegn tun? Where is the Problem, waht can I do? Thanks, Agent2008

Hi Agent 2008, And welcome to the forum, your problem is more commone when trying to load from the C: driver under Dos, its seem that the function used to detect ram size does not work on your PC/Laptop ;----------------------------------------------------; ; Get Ram Size. ; ;----------------------------------------------------; GetRamSize: mov ax,0xe801 int 15h jc @f movzx ebx, bx shl ebx,6 movzx eax, ax add ebx,eax mov [ExtMemorySize],ebx call TotalRam @@: ret ;----------------------------------------------------; ; TotalRam. ; ;----------------------------------------------------; TotalRam: shr ebx,10 inc ebx mov [TotalMemoryMB],ebx ;< ret This function does not work on all pc. You can for now put your ram size in eg; if you had 64MB of ram, you could replace "GetRamSize" function with this GetRamSize: mov ax,0xe801 int 15h jc @f movzx ebx, bx shl ebx,6 movzx eax, ax add ebx,eax mov [ExtMemorySize],ebx call TotalRam @@: mov [TotalMemoryMB], 64 ;note this is added ret And re-assemble it, that add it to a floppy image with winimage than make a bootable CD from it. If you want i will make a mod ver for you and upload it so you can use it, but this should only stop you from loading drivers, you should still be able to load other programs as normal. I will post a link to the iso later tonight. Regards Dex. PS: If you post in the mean time, please post the ram size on the laptop thanks.

I looked up the specs on those, it looks like they're standard at 64 mb.

Thanks tonyMac i will hardcode it for 64MB.

I have add a mod ver of DexOS, including German keyboard and euro fonts etc, it is also mod to use 32MB of ram if that function does not work (i thought it best to play it safe with 32MB). I have give instruction on making a bootable CD from the floppy image in the zip files ReadMe. So go here http://dex4u.com/download.htm And get DexDE.zip Regards Dex.

Thanks a lot for your work, but now, there is a new error: "Error!, RTL8139 ethernet card not found:(." I think the Laptop has 128MB Ram, but I'm not sure. I hope you'll find a solution for this problem, because i'm really interested in using DexOS. Thanks, Agent 2008

This error means you can not use the network, because you do not have a rtl8139 ethernet on the laptop. But you can still use the programs, more driver are being code for ethernet, so maybe your will be added. Have you tryed typing A:\GUI <enter> or dir <enter> or you can try any of the programs on the image. If you get any problem running these program let me know thanks. Regards Dex. PS: As the CD emulates a floppy, reading from the CD image should be like reading from a floppy drive.