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...or improvements in the copybs and boot sector handling (I thought those mysterious options like setbpb, will make any dos7 bs file work). I hope the information here could be useful to some developer. Thank all of you who give suggestions, especially Ady. -- Regards, Lu Wei IM: xmpp:luweitest at riotcat.org PGP: 0xA12FEF7592CCE1EA

On at 2019-04-12 11:28 +0800, Lu Wei via Syslinux wrote: >> Regarding the MSDOS 7.1 boot files... Do you still have access to that Win98 >> system? If you do, I would suggest searching for "io.dos" and "msdos.dos". >> These might be set as "hidden" and/or "system" (use attrib if needed), and >> there might be some additional

...is not swapping 0 and 1 as I think. I also tried not using 'append' directive. It works too. Would you please explain the difference of one-line directive and using extra 'append' line? I'll reply with DOS part in another sub-thread. -- Regards, Lu Wei IM: xmpp:luweitest at riotcat.org PGP: 0xA12FEF7592CCE1EA

...p from official site, and extracted all files in \bios to H:\syslinux (sub-directory structure not retained to reduce path command in syslinux.cfg), except later I found memdisk do not honor path command and moved it to root. So they must be same version. -- Regards, Lu Wei IM: xmpp:luweitest at riotcat.org PGP: 0xA12FEF7592CCE1EA

...xcept label name, so I use this one), but I think if io.sys is loaded, boot sector should be of no use. I have tried "boot BOOTSECT.W98" and "bss BOOTSECT.W98" without success, so I'd like to jump over it and get to IO.SYS directly. -- Regards, Lu Wei IM: xmpp:luweitest at riotcat.org PGP: 0xA12FEF7592CCE1EA

...age of "com32 chain.c32 msdos7=io.sys" is: ---------------------------------------- BPB detection (sect): unknown Booting... (16 non-text strange characters) ---------------------------------------- Then press Esc can return to syslinux boot menu. -- Regards, Lu Wei IM: xmpp:luweitest at riotcat.org PGP: 0xA12FEF7592CCE1EA

...command.com), and the result is the same: DOS8 can boot while DOS7 failed. Even simply copying DOS8 files to DOS7 formatted disk (I hope it excludes bootsector incompatibility) can make it bootable. So I think DOS8 may be better with FAT32. The Disk is 8G. -- Regards, Lu Wei IM: xmpp:luweitest at riotcat.org PGP: 0xA12FEF7592CCE1EA

..., perhaps it is enough for your DOS needs and > you might not need "MS-DOS 7.1" anymore. > I think you are right, FreeDOS seems not so picky in booting as MSDOS. Although I haven't used FreeDOS before, I guess most things should work. -- Regards, Lu Wei IM: xmpp:luweitest at riotcat.org PGP: 0xA12FEF7592CCE1EA

> On 2019-4-11 13:29, Lu Wei wrote: > > On 2019-4-10 1:20, Ady Ady via Syslinux wrote: > >>>>> #This item fails > >>>>> label dos > >>>>> menu label MS-^DOS 7.1 > >>>>> com32 chain.c32 msdos7=io.sys > >>> > >>> IO.SYS and COMMAND.COM are copied from a Windows98 system on another >

Greetings, I encounter a problem that should be basic, but I can't get a clue. I have 8G USB disk formatted as FAT32. I run (syslinux -i -s -r -m H:) to make it bootable, and write syslinux.cfg according to the documents, but it will not boot some items. Syslinux is 6.03, bios files used. The whole syslinux.cfg file: