search for: setbpb

...ve a filename extension ending with ".S". There is also "multiboot.S", FWIW. Regards, Ady. diff U3 com32/chain/options.c com32/chain/options.c --- com32/chain/options.c Wed Mar 02 07:06:29 2016 +++ com32/chain/options.c Mon Feb 18 19:19:29 2017 @@ -224,15 +224,9 @@ opt.setbpb = true; opt.hand = false; } else if (!strncmp(argv[i], "reactos=", 8)) { - /* - * settings based on commit - * ad4cf1470977f648ee1dd45e97939589ccb0393c - * note, conflicts with: - * http://reactos.freedoors.org/Reactos%200.3.13/ReactOS-0.3.13-REL-src/bo...

...127de803d36d45a4eea29d30a7ca36 dated 2011-06-18 finalized the shuffle. > diff U3 com32/chain/options.c com32/chain/options.c > --- com32/chain/options.c Wed Mar 02 07:06:29 2016 > +++ com32/chain/options.c Mon Feb 18 19:19:29 2017 > @@ -224,15 +224,9 @@ > opt.setbpb = true; > opt.hand = false; > } else if (!strncmp(argv[i], "reactos=", 8)) { > - /* > - * settings based on commit > - * ad4cf1470977f648ee1dd45e97939589ccb0393c > - * note, conflicts with: > -...

...BASE") have a filename extension ending with ".S". There is also "multiboot.S", FWIW. diff U3 com32/chain/options.c com32/chain/options.c --- com32/chain/options.c Wed Mar 02 07:06:29 2016 +++ com32/chain/options.c Mon Feb 18 19:19:29 2017 @@ -224,15 +224,9 @@ opt.setbpb = true; opt.hand = false; } else if (!strncmp(argv[i], "reactos=", 8)) { - /* - * settings based on commit - * ad4cf1470977f648ee1dd45e97939589ccb0393c - * note, conflicts with: - * http://reactos.freedoors.org/Reactos%200.3.13/ReactOS-0.3.13-REL-src/bo...

...FAT/NTFS boot sector. Offset should * be either 0x24 (FAT/NTFS excluding FAT32) or 0x40 (FAT32 only) - * chainloader won't accept other values. Offset is parsed as a *HEX* * number. Offsetless value defaults to 0x24. 6) setgeometry - for legacy spt and heads fields in BPB 7) setbpb * A shortcut that enables set{hidden,geometry} options; * setdrive is not covered by this shortcut, due to the ambiguity. 8) writebs, filebpb * writebs * Write updated boot sector to the disk. This is performed only * if some of the BPB's fields actually changed. *...

.../whateverN to adjust values of heads and sectors-per-track fixed the issue). Anyway, I was thinking about extending chain.c32 code a bit to do following when "sethidden" option is specified (or better add extra options - such as "setgeometry", "setdrive" and "setbpb" (equivalent of all options specified) - to keep it more flexible): - update hidden sectors field (as it does currently) - at 0x1C - update sectors-per-track and heads fields (if cbios data is valid) - at 0x18 and 0x1A respectively - update drive number (also respecting opt.swap value) - at...

...sage:"Error:Filesystem not found on disk" (missing a Blank after "File"). Maybe it only supports floppy disk. So basically the problem is solved, although I think there are some bugs 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

...ocumented in doc/chain.txt I wasn't sure if to make one giant commit, or kept all the history as I was going - so I chose the latter. Tag 'chaindev-review' marks the commit. New feats since my last mail include options: mbrchs, hideall, bss, bs, warn (see doc/chain.txt for details). setbpb is a composite option now, adjusting fields basing on bpb detection. Lots of other misc changes and a few bugfixes. Branch disklib contains small patch I sent a few days ago.

This is a bit updated set of chain.c32 changes that simplifies a few things (and in partiter part), fixes few minor issues and adds a few new features. Details are in the following commits, below is the summary and pull details at the end. Shao - any chance to peek over them ? Most of those are relatively simple changes and well tested, though of course something might have slipped my attention.

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

git://git.zytor.com/users/genec/syslinux.git Branch handoff-mbr-for-hpa This is a piece of code that can be used in place of a MBR or VBR/PBR (master boot record; volume/partition) in order to examine the data handed to the respective boot code. AX, SS, and SP are destroyed before examining anything. I set an internal restriction that limits it to 420 bytes such that it could be used with a

This small set fixes few bugs, improves gpt handling (under buggy conditions) and implements strict flag with more fine grained control which should fix issues with sanity checks against disk sizes. If this set is allright I'd want to do what I mentioned in older discussion with Ady - backport missing patches from 6.x to 5.x and 4.x so all versions have up to date chain version. Michal