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Automatic loading of commands is supported. * normal/main.c (read_command_list): New function. (grub_normal_execute): Call read_command_list. * normal/command.c (grub_register_command): Return zero or CMD. Allocate CMD->NAME from the heap. Initialize CMD->MODULE_NAME to zero. Find the same name as well. If the same command is found and it is a dummy command, overwrite members. If it is not a dummy command, return zero. (grub_unregister_command): Free Q->NAME and Q->MODULE_NAME. (grub_command_find): If a dummy command is found, load a module and retry to find a command only once. * normal/cmdline.c (grub_tab_complete): Call grub_command_find to make sure that each command is loaded. * include/grub/normal.h (GRUB_COMMAND_FLAG_NOT_LOADED): New macro. (struct grub_command): Remove const from the member `name'. Add a new member `module_name'. (grub_register_command): Return grub_command_t. * commands/help.c (grub_cmd_help): Call grub_command_find to make sure that each command is loaded. * genmk.rb (PModule::rule): Specify a module name without the suffix ".mod" to gencmdlist.sh.
This is GRUB 2, the second version of the GRand Unified Bootloader.
GRUB 2 is rewritten from scratch to make GNU GRUB cleaner, safer, more
robust, more powerful, and more portable.
Because GRUB 2 was formerly developed under the project PUPA, there
remain still many places where PUPA is used instead of GRUB 2. So
suppose that PUPA is a synonym of GRUB 2 for now.
See the file NEWS for a description of recent changes to GRUB 2.
See the file INSTALL for instructions on how to build and install the
GRUB 2 data and program files.
Please visit the official web page of GRUB 2, for more information.
The URL is <http://www.gnu.org/software/grub/grub.html>.
Because GRUB 2 is still in developmental stage, GRUB 2 is not for general
use (yet). For now, you can install GRUB 2 into a floppy by these
instructions:
$ configure && make
$ ./grub-mkimage -v -d . -o core.img _chain ext2
$ dd if=boot.img of=/dev/fd0 bs=512 count=1
$ dd if=core.img of=/dev/fd0 bs=512 seek=1
It would be easier to use Bochs <http://bochs.sf.net/> than a real
machine.