Does someone know where I could get my hands on an ima that's larger than 2.88meg... I use winimage for all my ima's and stuff but i'm having trouble configuring a custom size. If anyone has a large ima I could utilize that would be great, preferably one fitting this memdisk supported size: 3,932,160 bytes (3840K) c=80 h=2 s=48 3.5" DSED (extended) If not instructions on making one within a windows environment would be greatly appreciated. Matthew Holevinski
Op 4-5-2010 18:56, Matthew Holevinski schreef:> Does someone know where I could get my hands on an ima that's larger > than 2.88meg... I use winimage for all my ima's and stuff but i'm > having trouble configuring a custom size. If anyone has a large ima I > could utilize that would be great, preferably one fitting this memdisk > supported size: > > 3,932,160 bytes (3840K) c=80 h=2 s=48 3.5" DSED (extended) >http://www.wolfgang-brinkmann.de/bcdw/images_e.htm has floppy images up to 700MB , no idea how they're made, guess someone had fun with some Linux tools. WinImage (I bought it, no idea if pro-version only feature) seems to have a custom filesize option (FILE/NEW/IMPORTED/ SELECT CUSTOM IMAGE FORMAT). Don't ask me how to use it though. Memdisk might require you to specify cilinders, heads and sectors when loading from Syslinux. There might also exist some ancient DOS diskette formatting tools/programs to create 2.88MB floppy images with supersize. http://en.wikipedia.org/wiki/2M_%28DOS%29 for example
Good day again Matthew, As per (c=80) * (h=2) * (s=48) * (sect_size=512) = 3,932,160 bytes 7,680 sectors: For Windows, you might enjoy: - "DD for Windows" by John Newbigin and chrysocome[1] - "ImDisk Virtual Disk Driver" and "Zero and Random Device Driver" by Olof Lagerkvist[2] - "TinyHexer" by Markus Stephany[3] - syslinux/win32/syslinux.exe and syslinux/com32/modules/chain.c32 (this one for chaining to DOS, should you wish to) C:\>dd if=\\.\zero of=matthew.vfd count=7680 --progress ... C:\>imdisk -a -t file -f matthew.vfd -x 48 -y 2 -m a: -o fd ... C:\>format /fs:fat a: ... C:\>syslinux.exe a: ... C:\>copy chain.c32 a: ... C:\>imdisk -d -m a: ... C:\>tinyhexer matthew.vfd - Edit the "Media Type" byte at 0x15 (22nd) to be "Floppy": 0xF0 - Edit the "Hidden Sectors" double-word at 0x1C through 0x1F (29th through 32nd) to be zero: 0x00000000 - Edit the "Drive ID" byte at 0x24 (37th) to be "Floppy": 0x00 - Save your changes to matthew.vfd Enjoy. The result is attached, along with these instructions as a text file. - Shao Miller [1] http://www.chrysocome.net/dd [2] http://www.ltr-data.se/opencode.html [3] http://www.mirkes.de/files/mpth_18.exe -------------- next part -------------- An embedded and charset-unspecified text was scrubbed... Name: superfloppy.txt URL: <http://www.zytor.com/pipermail/syslinux/attachments/20100504/37f2b94c/attachment.txt> -------------- next part -------------- An embedded and charset-unspecified text was scrubbed... Name: matthew.vf.txt URL: <http://www.zytor.com/pipermail/syslinux/attachments/20100504/37f2b94c/attachment-0001.txt>