similar to: memdisk via PXE for DOS+firmware upgrade

On 07/15/2014 06:57 PM, Ady wrote: > > Finally, when using MEMDISK to boot floppy images, these images > should not use partial "cylinders". In other words, use exact CHS > values for floppy images, instead of building the images by means of > the desired megabytes size. Then use the selected CHS values as > parameters for MEMDISK. > If you have a proper set

Hello, are there known issues with some bioses not booting from Superfloppy format? All I get is the Syslinux (c) line and nothing else happens afterwords. Everything works fine if a partition is added to the device. Unfortunately however the target device can not be partitioned. Any hint? Sven -- Why are there so many Unix-haters-handbooks and not even one Microsoft-Windows-haters

On 08Jul2014--09Jul2014, Ady, Peter Anvin, Gene Cumm, Bernd Blaauw, Shao Miller, Kenneth Davis, wrote: > [...] Thank you all for your responses. You helped me solve my problem. For anyone else that runs into similar trouble and finds this thread, here follow summaries of what I've learned. To recap, our PXE server holds Dell BIOS updates in FreeDOS floppy images booted via MEMDISK.

> On 08Jul2014--09Jul2014, Ady, Peter Anvin, Gene Cumm, Bernd Blaauw, Shao > Miller, Kenneth Davis, wrote: > > [...] > > Thank you all for your responses. You helped me solve my problem. For > anyone else that runs into similar trouble and finds this thread, here > follow summaries of what I've learned. > > To recap, our PXE server holds Dell BIOS updates in

For the boot floppy at http://superkeen.com/peacecorpsfiles/FUZOMA14.IMG using memdisk from syslinux version 3.72 boots correctly, but for memdisk versions newer than 3.72 (I tested 3.73, 3.75, 3.85, and 3.86) all hang at boot with the following message: Loading boot sector... booting FreeDOS kernel - SVN (build 2039 OEM:0xfd [compiled Oct 2 2009]) Kernel compatibility 6.22 - BORLANDC ... XMGR,

A kind request for help please. MEMDISK is causing an issue with the Dell OptiPlex GX280 and GX620 platforms. Booting a PC-DOS/Ghost, disk image is successful (and proper) when using version 3.83. See results below: MEMDISK 3.83: Ramdisk at 0x07eeaa00, length 0x007bc000 command line: initrd=images/ghostclient/280_620/osbootc.img BOOT_IMAGE=memdisk MEMDISK: Image seems to have fractional end

From 43e0635d7d90f65055d1f49d998974041315f4fc Mon Sep 17 00:00:00 2001 From: Shao Miller <shao.miller at yrdsb.edu.on.ca> Date: Fri, 11 Dec 2009 01:26:59 +0000 Subject: [PATCH] memdisk: Fix "might be used uninitialized" warnings The checksum_buf function was providing an incorrect checksum on at least one build. Signed-off-by: Shao Miller <shao.miller at yrdsb.edu.on.ca>

On 07/08/2014 05:55 PM, H. Peter Anvin wrote: > On 07/08/2014 03:05 PM, Alexander Perlis wrote: >> >> Question: what's special about the transition from 8203KiB to 8204KiB? >> Both have CHS=8/64/32 and both involve a fractional end cylinder. > > Fractional cylinders with floppy disks is almost certainly a very bad thing. > Agreed, but that doesn't appear to

Hi, this is a forward from the debian bug tracking system, http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=595170: "syslinux for Windows provides the options -m (write an MBR) and -a (make partition active). These options make it easy to provide instructions for Windows users to make a bootable USB drive: just run "syslinux -m -a" on the drive, then drop some files on the drive

I have many hp laptops that boot msdos with memdisk + pxelinux perfectly. However, I recently have the need to usb boot msdos with syslinux. And memdisk. When the dos Image loads I get "loading bootsector..." and then it halts. Sometimes I can get "starting ms-dos" but freezes as well. I'm trying to boot clean msdos floppy image created with winimage. I'm using

I have a USB flash drive that I'd like to image, and then load that image via pxelinux and memdisk. The flash drive was formatted under Windows 98 SE as FAT, and boots just fine on its own. The PXE boot process gets as far as loading the image via memdisk, but then when the boot process switches over to the RAM disk, it fails: [...PXE diagnostic information...] Loading boot

Good day to you, too. No worries about the delay. I understand how busy everyone is with SYSLINUX. Gladly, the project continues to develop and improve. With that said, thanks for today's flurry of activity regarding my reported problem. Impressively, the debug version of MEMDISK that you had directed me to use appears to have done the trick. Results below. command line:

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

On 07/09/2014 04:00 PM, H. Peter Anvin wrote: > > So this would seem consistent that this is the FAT12/FAT16 boundary that > breaks stuff. Perhaps FreeDOS has a problem with FAT16 on floppies? If I understand things correctly, a bootable floppy has two key pieces of executable code: the 512-byte boot sector, and the kernel loaded by that boot sector. The kernel can be large, and thus

since a few of you asked what I use it for...since I'm not a unix person.. I started using it back in 2002...to update hard drives that used a 'superfloppy format' (if anyone remembers the old DigitalWallet from Minds at work!) I fixed several of them after the company went belly up for photographer friends of mine. I mostly use it to do HD maintance...fixing fats...restoring backup

The previous MEMDISK El Torito code merge did not actually work without this. Signed-off-by: Shao Miller <shao.miller at yrdsb.edu.on.ca> --- memdisk/setup.c | 17 +++++++++-------- 1 files changed, 9 insertions(+), 8 deletions(-) diff --git a/memdisk/setup.c b/memdisk/setup.c index 40f3f8c..5a45f39 100644 --- a/memdisk/setup.c +++ b/memdisk/setup.c @@ -338,6 +338,7 @@ struct geometry

Hi, Ady wrote: > This could be misinterpreted by some users as: "if > you want to build an isohybrid image, then you cannot use > 'syslinux.efi'". This would be incorrect. I don't know whether syslinux.efi can be used for booting from ISO 9660 via UEFI. Currently there is no example around which would succeed without GRUB or GRUB2. When describing the UEFI

>From 8fb8c285e69c0f4cde28061019a8e399641d5ef1 Mon Sep 17 00:00:00 2001 From: Shao Miller <shao.miller at yrdsb.edu.on.ca> Date: Sun, 22 Mar 2009 00:27:56 -0400 Subject: [PATCH] [memdisk] Additional comments in memdisk.inc and postprocess.pl Just a sprinkling of comments adding further description to the code. --- memdisk/memdisk.inc | 34 +++++++++++++++++++++-------------

Hello, How do I set up the registers to find out that MEMLINUX is installed? I know it is an int 13h / ah=08h call - but I cannot figure out how to specify the other registers... Also, I need to find a way to be able to: unhook int 13h and int 15h and put them back to the BIOS vectors, and yes, I know some DOSses rehook int 13 - but it can be done.. I need to be able to boot a CD, load the

Hi Peter, You did a great job on the isolinux and memdisk tools.. I can know, I've also written a CD-Rom disk emulator, only it's slow (read from the CD) uses 22KB conventional memory (mainly cache) and the emulated floppy image cannot be written to. http://www.nu2.nu/diskemu/ You're memdisk is fast, small conventional memory footprint and the emulated drive is writeable, very,