updownloader Posted July 31, 2005 Share Posted July 31, 2005 Hi All !I'm trying one thing for days and don't works !I'm trying to make a bootable DOS based CD-ROM. But I dont want a CD emulating a floppy disk !I don't want to need using ms-dos CDROM driversI want to have a dos access to my CDROM without loading mscdex.exe & co...I tried this and it almost worked :I made a 650 MB HDD where I put all system files and my dos applications and I tried the Nero option of using a HARDDISK image for booting.It works but.... Nero modify the MBR of the HDD BEFORE making the image... so when loading the CD-ROM, it try to load win98 (I even see the win98 boot logo) even if there is no win98 files on the cd-rom !!Nero also modify the Master Boot Record of the 650 MMB HDD and I need to make fdisk /mbr to restore it !How can I make a boot CD that launch dos and where the whole CD files are available without cd drivers ? With "HDD emulation" or "no emulation", but I don't want FDD emulation or thing like UBCD / CDshell that load FDD based image.I hope you understood my bad english Thanks a lot ! Link to comment Share on other sites More sharing options...
liquidplasmaflow Posted July 31, 2005 Share Posted July 31, 2005 Well, because DOS doesn't natively support CD-ROM drives, it seems like MSCDEX.exe and a driver would be your only option Link to comment Share on other sites More sharing options...
updownloader Posted July 31, 2005 Author Share Posted July 31, 2005 no... when I made the HDD emulation, I accessed my whole CD without Cd drivers... but a lot of problem because It tried to write to the CD (thinking it was a HDD) Link to comment Share on other sites More sharing options...
jaclaz Posted August 1, 2005 Share Posted August 1, 2005 so when loading the CD-ROM, it try to load win98 (I even see the win98 boot logo) even if there is no win98 files on the cd-rom !!Well, it MUST be somewhere, I don't think it is created from thin air! The boot logo is INSIDE the win98 IO.SYS filehttp://www.easydesksoftware.com/common.htm#logosNot to see it, you must set the value Logo=0 in file MSDOS.SYS(you can edit it with Notepad)http://www.easydesksoftware.com/msdos.htmReference:http://support.microsoft.com/?id=151667http://support.microsoft.com/kb/118579/EN-US/About the main problem, I cannot help you, I quite frankly cannot understand why you won't use a CD-ROM driver in your system, if you have problems with MSCDEX, why don't you use SHSUCDX:http://www.geocities.com/jadoxa/shsucdx/On the other hand, your approach is very interesting, please post progress/results.If you are on Win2K/XP I suggest you use a HD image instead of an actual HD.You can use the Ken Kato driver:http://chitchat.at.infoseek.co.jp/vmware/vdk.html#topand (optionally) my pseudo GUI:http://home.graffiti.net/jaclaz:graffiti.n...ts/VDM/vdm.htmlLater, you can (instead of burning on a CD) use qEMU, see this thread:http://www.msfn.org/board/index.php?showtopic=48629to test the .ISO image.Also, you might want to experiment with this:http://www.911cd.net/forums//index.php?showtopic=8955and with the original eltorito.sys by Bart:http://www.nu2.nu/eltorito/http://www.nu2.nu/bootcd/#cdromsijaclaz Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now