Displaying 5 results from an estimated 5 matches for "7c03".
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7c01
2009 Dec 28
1
[PATCH] chain.c32: add support for booting the Recovery Console of Windows NT/2K/XP
...for chain.c32 adds support to boot the Recovery Console of Windows NT/2K/XP.
Normally when you want to boot the recovery console, you need to patch "cmdcons\0" into the
bootsectorof the partition (8 bytes starting at 0x3 (4th byte)).
We can do this patching in memory:
strcpy((char *) 0x7c03, "cmdcons");
To boot the recovery console with chain.c32:
chain.c32 cmldr=/cmldr
- Gert Hulselmans
$ diff -u chain.c.textmode chain.c.cmldr
--- chain.c.textmode 2009-12-28 21:32:17.658783777 +0100
+++ chain.c.cmldr 2009-12-28 22:23:15.118787984 +0100
@@ -48,6 +48,10 @@
* ntl...
2009 Dec 29
1
[PATCH] chain.c32: comments fix and usage output corrected
...g 0x2000 -file <loader>, used with WinNT's loaders
*
* cmldr=<loader>:
- * used with Recovery Console of Windows NT/2K/XP.
+ * used with Recovery Console of Windows NT/2K/XP.
* same as ntldr=<loader> & "cmdcons\0" written to memory address 0000:7C03
*
* freedos=<loader>:
@@ -735,7 +735,7 @@
" chain.c32 boot [<partition>] [options]\n"
"Options: file=<loader> load file, instead of boot sector\n"
" isolinux=<loader> load another version of ISO...
2010 Mar 11
1
Recovery console doesn't work in chain.c32 3.85 or 3.86-pre1
...LABEL 1
MENU LABEL Recovery console (RC) original patch (working)
COM32 chain_g.c32
APPEND cmldr=/cmldr
LABEL 2
MENU LABEL Recovery console (for fixing chain.c32 3.86-pre1)
COM32 chain.c32
APPEND cmldr=/cmldr
LABEL 3
MENU LABEL Boot Grub4dos (grldr) like RC and display contents of 0000:7C03
COM32 chain.c32
APPEND cmldr=/grldr
When you boot grub4dos from the menu, you can read the memory address to
which the "cmdcons" string should be written:
For the 'Read contents at 0x7C03', grub4dos returns:
Booting Read contents at 0x7C03
Address 0x7c03: Value 0xd08ed88e...
2010 Jul 26
5
[RFC/PATCH] New chainloading functionality
This patch introduces extra functionality to chain.c, mainly with reference to
BPB adjustments, but not only that. It expects 3 small patches I sent earlier
(they are included for easy reference, patches 1-3/4).
The changes introduced are:
1) file and boot sector use separate options to control load address and jump
address (if applicable). Options are as described below:
*
2010 Aug 08
1
PATCH/RFC chain.c: update iterator code, yank from chain.c, move both to separate directory
1) code split and move
Iterator related functionality is yanked from chain.c and moved to
iterator.{c,h}. Both are moved to com32/chain and this way chain.c is ready
for further splitting.
Alternatively, partiter could be moved to com32/lib at any time in the future.
It's potentially useful for other modules (e.g. if someone wanted to code
partition dumper or editor).
2) Iterator updates