chain.c: initial move of documentation to doc/chain.txt

[profile/ivi/syslinux.git] / com32 / chain / chain.c

diff --git a/com32/chain/chain.c b/com32/chain/chain.c
index 65d6414..8aef6b6 100644 (file)
--- a/com32/chain/chain.c
+++ b/com32/chain/chain.c
@@ -14,95 +14,7 @@
  * ----------------------------------------------------------------------- */
 
 /*
- * chain.c
- *
- * Chainload a hard disk (currently rather braindead.)
- *
- * Usage: chain [options]
- *       chain hd<disk#> [<partition>] [options]
- *       chain fd<disk#> [options]
- *       chain mbr:<id> [<partition>] [options]
- *       chain guid:<guid> [<partition>] [options]
- *       chain label:<label> [<partition>] [options]
- *       chain boot [<partition>] [options]
- *
- * For example, "chain msdos=io.sys" will load DOS from the current Syslinux
- * filesystem.  "chain hd0 1" will boot the first partition on the first hard
- * disk.
- *
- * When none of the "hdX", "fdX", "mbr:", "guid:", "label:", "boot" or "fs"
- * options are specified, the default behaviour is equivalent to "boot".
- * "boot" means to use the current Syslinux drive, and you can also specify
- * a partition.
- *
- * The mbr: syntax means search all the hard disks until one with a
- * specific MBR serial number (bytes 440-443) is found.
- *
- * Partitions 1-4 are primary, 5+ logical, 0 = boot MBR (default.)
- *
- * "fs" will use the current Syslinux filesystem as the boot drive/partition.
- * When booting from PXELINUX, you will most likely wish to specify a disk.
- *
- * Options:
- *
- * file=<loader>
- *     loads the file <loader> **from the Syslinux filesystem**
- *     instead of loading the boot sector.
- *
- * seg=<segment>
- *     loads at and jumps to <seg>:0000 instead of 0000:7C00.
- *
- * isolinux=<loader>
- *     chainload another version/build of the ISOLINUX bootloader and patch
- *     the loader with appropriate parameters in memory.
- *     This avoids the need for the -eltorito-alt-boot parameter of mkisofs,
- *     when you want more than one ISOLINUX per CD/DVD.
- *
- * ntldr=<loader>
- *     equivalent to seg=0x2000 file=<loader> sethidden,
- *     used with WinNT's loaders
- *
- * cmldr=<loader>
- *     used with Recovery Console of Windows NT/2K/XP.
- *     same as ntldr=<loader> & "cmdcons\0" written to
- *     the system name field in the bootsector
- *
- * freedos=<loader>
- *     equivalent to seg=0x60 file=<loader> sethidden,
- *     used with FreeDOS' kernel.sys.
- *
- * msdos=<loader>
- * pcdos=<loader>
- *     equivalent to seg=0x70 file=<loader> sethidden,
- *     used with DOS' io.sys.
- *
- * grub=<loader>
- *     same as seg=0x800 file=<loader> & jumping to seg 0x820,
- *     used with GRUB Legacy stage2 files.
- *
- * grubcfg=<filename>
- *     set an alternative config filename in stage2 of Grub Legacy,
- *     only applicable in combination with "grub=<loader>".
- *
- * grldr=<loader>
- *     pass the partition number to GRUB4DOS,
- *     used with GRUB4DOS' grldr.
- *
- * swap
- *     if the disk is not fd0/hd0, install a BIOS stub which swaps
- *     the drive numbers.
- *
- * hide
- *     change type of primary partitions with IDs 01, 04, 06, 07,
- *     0b, 0c, or 0e to 1x, except for the selected partition, which
- *     is converted the other way.
- *
- * sethidden
- *     update the "hidden sectors" (partition offset) field in a
- *     FAT/NTFS boot sector.
- *
- * keeppxe
- *     keep the PXE and UNDI stacks in memory (PXELINUX only).
+ * Please see doc/chain.txt for detailed documentation.
  */
 
 #include <com32.h>