When the extended primary loader for CD was introduced in 2008-2009 it
used to load a relatively small secondary loader. Later the secondary
loader was integrated into the kernel, hence the primary loader had to
load the kernel which is 100kB+. The EDD BIOS specification allows to
read less than 0x80 sectors at once using Int 0x13 0x42 service. For a
512-byte sector this is less than 0x10000 bytes which is a 64kB limit.
The same limit of 64kB is reached on a CD with only 0x20 sectors,
because the sector size is 2048 bytes here. This commit changes the
maximum number of sectors that can be read by the loader at once from
0x7f to 0x20, i.e. reading is done in 64kB blocks now.
* Build fat1x, fat32, cdfs, after_win loaders.
* Set use_lba=1 by default in fat32 loader.
* Build kolibri.raw: flash / hdd image.
* Add example config.ini file.
* Add an option (config file and screen) to not load ramdisk image.
* Add an option (config file only) to set /sys path.
Now you can boot without a ramdisk from a storage that is supported
by the kernel itself, i.e. without loadable drivers. Thus you can not
load the system without a ramdisk from SATA/AHCI and USB drives.
git-svn-id: svn://kolibrios.org@8091 a494cfbc-eb01-0410-851d-a64ba20cac60
