changelog_grub4dos.txt

linux 系统的引导文件

2008-03-14(r58) commented out the geometry-tune code. other fixes.
2008-01-01(r57): mini build support
2007-12-25(r56): created the test branch
2007-12-25(r55) removed commands uppermem, ioprobe, impsprobe and displayapm.
2007-12-14 test 3 of the geometry-tune.
2007-12-10 cleanups on chainloader and errorcheck.
2007-12-05 fixed a bug in ntfs file system module.
2007-12-04 fixes on gzipped (rd) image support.
2007-12-02 int13 emulation workaround for buggy BIOSes('Disk read error').
2007-11-23 implemented cdrom emulation.
2007-10-15(r54) version 0.4.3
2007-10-08 implemented chainloading isolinux.
2007-10-04 changed drive number of (md) to 0xffff.
2007-10-02 reduced output messages for "debug off".
2007-09-27 added a new map option of --a20-keep-on.
2007-09-26 a workaround for buggy USB floppy BIOSes(hang at INT13/AH=48h).
2007-08-27(r53) new notation () standing for the current root device.
2007-08-26 new feature of root prefix for support of relative path.
2007-08-25 fixed one more possible issue on A20.
2007-08-24 fixed another possible issue on A20 for memdrives.
2007-08-23 fixed a possible issue on A20 for memdrives.
2007-08-21 expand memdrive size according to the probed CHS.
2007-08-17 test A20 control for memory mapped disks.

	Updated code for hmload.
	Fixed a major problem of endless loop on enumeration of partitions.
	Fixed an issue in probe_mbr.
	Fixed a bug on compressed NTFS volume.
	Fixed a problem in probe_int by capturing int10.

2007-07-25 version 0.4.3pre2

	Added a new command OUTLINE, and a new option --duce for GRUB.EXE.
	Changed PARTNEW syntax. Fixed a problem of OPEN_PARTITION.
	The arguments of PARTTYPE have changed to be optional.
	
	A Fault-Recovery-Handler was imposed on probe_int to fight against
	some very serious BIOS bugs(reportedly of DELL machines).

	The DEBUG command syntax was changed for verbosity control.

2007-06-22 version 0.4.3pre1

	Fixed two problems on GRUB.EXE: preset_menu and FreeDOS related.
	Added a new command `hiddenflag'; Added BPB in GRLDR.MBR; Ignored the
	partition-ID check in filesystem modules; other fixes.

	PXE and NTFS fixes.
	Fixed a bug in probe_int for GRUB.EXE running in VM86 mode.
	Rewrite fsys_ntfs.c
	Fixed probe_int and init_pic in GRUB.EXE. Reduced warnings in bios.c.
	Added PXE support.
	NTFS code update for bootlace. Fixed timing functions.
	fix a bug in get_diskinfo; protect the MBR of an in-situ-mapped drive.
	Insert-key to debug on startup; polish graphics. NTFS boot record fix.
	Bugfixes on STAGE2_SIZE, arrow keys, and handling `&&'/`||' in menu.
	Move preset menu to the end/tail of pre_stage2.
	Numeric keys to select menu entry; fixed a bug of int13 harddrives.
	Code clean-ups on build script and keycode translation. 
	F11/F12 hotkey handling.
	Added builtin NTFS boot sectors into GRLDR.
	Added 3 commands is64bit, errnum and errorcheck.
	Applied Robert Millan's patch of check_64bit.
	Implemented two syntactic operators `&&' and `||'.
	Added a new option --in-situ for the map command.

	Fixed an auto-probe-int problem of GRUB.EXE under "EMM386 noems".

	Workaround for buggy VirtualPC on a issue of floppy-emulation-mode
	bootable CDROM.

2006-12-28 version 0.4.2

	Fixed a bug hidden deeply in memcheck.
	Fixed a bug hidden deeply in get_diskinfo.
	Fixed a bug in load_image.
	GRLDR(as a no-emulation-mode bootable CDROM image) was adapted to
	cope with some buggy BIOSes(e.g., VirtualPC).
	Added LBA-to-CHS geometry translation(in int13_handler) to simulate
	LBA(EBIOS)-enabled drives on CHS-only drives.
	Added a new feature of Unconditional Command-line Entrance.
	Applied Beverly Brown's patch to load_initrd.
	Added two new options to the map command to better serve Win9x.
	The default config file search path for GRUB.EXE was changed to
	(DOS file) .\menu.lst and then (DOS file) \menu.lst and then
	(GRUB file) /menu.lst.
	Other bug fixes.

2006-10-24 version 0.4.2pre11

	Made a workaround for buggy USB-bootable board QDI 848E.
	Made a workaround for buggy 965 board with SATA CDROM connected.

2006-10-07 version 0.4.2pre10

	Fixed a problem in GRUB shell which causes failure in grub-install.
	Enabled GRUB.EXE to run under FreeDOS with memdrives in use.
	Implemented an auto-probe mechanism to support all kinds of DOSes.

2006-09-19 version 0.4.2pre9

	Resolved several problems:
	1. (about kexec)Dropped the problematic kexec-tools-1.101-patch.
	2. (about stack)Adjusted code in C files to use less stack.
	3. (about cdrom)Fixed a few bugs in the cdrom driver. 

2006-08-29 version 0.4.2pre8

	Added a new command `setvbe'.
	Dropped the obsolete EZ-BIOS(with signature `AERMH') support.
	Fixed a bug in parsing Rock-Ridge extension.
	No-emulation-mode Bootable CD can be chainloaded now.
	Some work was done to improve remote/diskless boot.
	Fixed one more USB/Floppy EBIOS problem(in get_diskinfo).
	Merged protected mode stack into real mode stack at 0x2000.
	Code clean-up.

2006-07-31 version 0.4.2pre7

	Imported ATAPI CDROM driver from Smart Boot Manager.

	Dropped the previous implementation of SCDROM/BIOSCDROM.

	Fixed a USB/Floppy EBIOS problem that could cause media access failure
	or even hang the machine when using USB storage devices.

	Fixed a bug in BOOTLACE.COM that had improperly set the LBA indicator
	byte(which is at offset 0x02 of the boot sector).

	Fixed a bug in GRLDR that caused failure in finding the associated
	MENU.LST config-file(which should be in the same directory as GRLDR).

2006-06-18 version 0.4.2pre6

	Dropped the obsolete EZD disk map support.
	Fixed several bugs that may hang or slow the qemu virtual machine.
	Fixed a bug that causes the pause command not to respond any key-press.
	Fixed a bug that causes a command to accidentally fail if in a menu.
	Fixed a bug that causes the menu not to work once a cdrom had booted.

2006-06-05 version 0.4.2pre5

	Added a static-linked binary executable file GRUB(a Linux utility).

	Fixed a gateA20 problem related to memdrive emulation.

	Boot GRUB.EXE directly off Windows9x/Me(experimental; might hang).

2006-04-03 version 0.4.2pre4

	Made GRUB.EXE run under EMM386.
	Fixed a bug in splashimage_func().
	Made `ignore error' constant and removed the `--ignore-error' option,
	and renamed the option `--seconds=T' to `--wait=T' for savedefault.
	The sample menu.lst was modified accordingly.

2006-03-28 version 0.4.2pre3

	New syntax for the `default' and `savedefault' commands was
	implemented.

	Changed `int' to `unsigned long' for filemax, filepos and fsmax, and
	modified all fsys_*.c files in order to open large files(2GB or
	longer).

2006-03-09 version 0.4.2pre2

	The directory `boot/grub/' was removed from the release tree(GRUB4DOS
	does not use the stage files at boot time). The default config file for
	GRUB.EXE was changed to (hd0,0)/menu.lst(but preset_menu still locates
	(hd0,0)/boot/grub/menu.lst when (hd0,0)/menu.lst does not exist).

	Added DOS command-line options --bypass, --time-out=T and --hot-key=K
	for GRUB.EXE.

2006-02-24 version 0.4.2pre1
	gcc-4 support by VirusCamp.
	
	Limited support for returning to DOS from GRUB.EXE.
	
	Implemented a new feature that GRUB.EXE can be used as a DOS device
	driver and be started in CONFIG.SYS with a DEVICE line.
	
	Better IODELAY was made for initialization of PIC to fix the
	keyboard-not-responding problem when running through KEXEC.

	Better A20 gate control was made to help fix various problems on the
	boot of grub.
	
2005-12-14 version 0.4.1
	Fixed a partition enumeration bug(in disk_io.c). Fixed a bug of mapping
	partitions to harddrives(in builtins.c). Fixed a bug that causes
	failure when `find --set-root' on a CD-ROM device(in builtins.c). Added
	a new feature of directly chainloading ntldr and some dos kernels.

2005-11-14 version 0.4.1pre32
	Fixed more bugs.

2005-11-02 version 0.4.1pre31
	A few bugs were fixed.

2005-10-23 version 0.4.1pre30
	A bug about "bootlace.com --floppy" was fixed.

2005-10-18 version 0.4.1pre29
	Added ram disk device (rd) to access, typically, the initrd image.
	Added many new command-line options for bootlace.com to install GRLDR
	boot record onto the boot sector of a floppy. A few bugs about
	"map --mem" were fixed. Another bug about finding grldr in NTFS was
	also fixed. It may cause the machine to hang up when there is no ntfs
	boot record in the boot area of the NTFS partition.

2005-09-25 version 0.4.1pre28
	Commandline option --config-file="FILENAME_OR_RAW_COMMANDS" was added
	for GRUB.EXE where GRUB.EXE is treated as a Linux kernel.
	Fixed a bug which causes installation failure when BOOTLACE.COM is
	used for large disks.

2005-09-21 version 0.4.1pre27
	Added a patch to the kexec-tools-1.101. Kexec might fail to load
	grub.exe without this patch.

2005-09-14 version 0.4.1pre26
	Fixed a bug for the DOS part of BOOTLACE.COM

2005-09-11 version 0.4.1pre25
	GRUB4LIN has merged into GRUB.EXE; A new command-line option
	--read-only was added for BOOTLACE.COM; A few bug fixes.
	
2005-09-01 version 0.4.1pre24
	BOOTLACE.COM runs under both DOS and Linux.