Hi FabrÃcio Ceolin, > Using qemu, I make a USB Key bootable, using it like a common disk. > qemu -hda /dev/sde -cdrom freedos.iso -boot d > But, It works only at some machines. > Check this video with the bugs > www.youtube.com/watch?v=n-URVzgNKQA
Hi! It seems you first boot option 2 (EMM386 and SHARE) on one PC, then use FDAPM to poweroff that, no problems. Then you do the same on another PC, and then, maybe right after loading EMM386, you get "Config sys error on line..." and "UMBs unavailable" and then DOS fails to load command.com: This (it goes too fast to see details) sounds like loading EMM386 broke disk access. Your boot screen shows that you have Award BIOS and Celeron with lots of Intel hardware... G31 Express graphics, ICH7 sound, IDE, SMBus and USB 2 and a network card from some other vendor. Boot options are: 1 EMM386 NOEMS, 2 EMM386 EMS SHARE, 3 HIMEM, 4 no drivers, but 4 is disabled, default 2. You probably use old FreeDOS 1.0 :-). Option 4 is not available because you would need a line like this: 4?echo no drivers in your config sys or fdconfig sys file :-). Please try booting with option 3, HIMEM (but no EMM386). It is quite possible that EMM386 tries to give DOS UMB space in an area which is also used by the USB hardware which is why all disk access fails after loading EMM386. If this solves the problem, then please upgrade your EMM386 to JEMM386 from www.japheth.de and check if you can now boot even WITH JEMM386 without breaking USB access. If yes, good, if no, you could help us making JEMM386 better. In other words, help let it autodetect the areas used by USB hardware and let DOS avoid them. Thanks for your help :-). Eric PS: Please also check http://rugxulo.googlepages.com/ and there in particular the 2.88 MB distro and try to use that for making a more up to date bootable stick. ------------------------------------------------------------------------------ Apps built with the Adobe(R) Flex(R) framework and Flex Builder(TM) are powering Web 2.0 with engaging, cross-platform capabilities. Quickly and easily build your RIAs with Flex Builder, the Eclipse(TM)based development software that enables intelligent coding and step-through debugging. Download the free 60 day trial. http://p.sf.net/sfu/www-adobe-com _______________________________________________ Freedos-user mailing list Freedos-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/freedos-user