mkrescue man page on SuSE

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MKRESCUE(8)							   MKRESCUE(8)

NAME
       mkrescue - make rescue floppy

SYNOPSIS
       /sbin/mkrescue  - make a bootable rescue floppy or CD using the default
       kernel specified in lilo.conf.

DESCRIPTION
       mkrescue takes its specifation for the kernel from  the	default	 image
       specified in /etc/lilo.conf.  If the actual default is an other= speci‐
       fication, then use the first image= specification.  Any associated ini‐
       tial  ramdisk  (initrd=),  and  append= options will also be used.  The
       root directory will be taken to be the current root.  A bootable floppy
       or CD-image will be created using LILO version 22.5.5 or later.	mkres‐
       cue normally requires no options, unless a CD-image is desired (--iso).

OPTIONS
       --append <string>
	      Override any append= options taken from the default  image.   If
	      there  is any doubt about whether the lilo.conf options are cor‐
	      rect, then specify no kernel parameters with:  --append "",  the
	      null string.

       --debug
	      Provide  verbose	output of the operation of "mkrescue", pausing
	      to allow the setting of  internal	 operating  parameters	to  be
	      viewed.  "<CR>" must be hit to proceed from these pauses.

       --device <device>
	      Make  the	 floppy	 on  a device other than /dev/fd0.  The floppy
	      disk will always be made to boot on BIOS device  code  0x00  (A:
	      drive), without regard to the drive on which it is created.

       --fast Use  a faster method of creating the boot floppy.	 This involves
	      first creating a file of "--size" 1k blocks  (default  is	 1440)
	      mounted  using  a loopback device, creating the bootable floppy,
	      then copying the entire file to the disk.

       --fs [ ext2 | msdos | minix ]
	      Specify the type of filesystem to create on the drive.  ext2  is
	      the  default,  but  "msdos" and "minix" allow slightly more disk
	      sectors for really big kernels.

       --help Print a short  usage  synopsis,  including  a  list  of  command
	      options.

       --image <label>
	      Specifies	 the label or alias of the particular image from which
	      the append, initial ramdisk, root, keytable, and kernel informa‐
	      tion is to be taken.

       --initrd <filepath>  and	 --kernel <filepath>
	      These  options, which must be used together, allow specification
	      of an arbitrary kernel file and initial ramdisk file to be  used
	      on the created boot floppy.  Be sure you know what you are doing
	      before you use these options.  If no inital  ramdisk  is	needed
	      with  a  particular  kernel,  then you MUST specify --initrd "",
	      meaning a null pathname.

       --install [ text | menu ]
	      Allows overriding the default human interface used with the res‐
	      cue bootloader (configuration file "install=" option). "text" is
	      the default on 1.2MB and 1.44MB floppy disks, and "menu" is  the
	      default on 2.88MB floppies and HD emulation on CD-R media.

       --iso  Create an ISO-9660 bootable CD image (El Torito Format) suitable
	      for burning to a CD-R  or	 CD-RW.	  The  --device	 specification
	      defaults	to  the filename "rescue.iso", and the --size defaults
	      to 2880.	A utility such as cdrecord may be used to burn the ISO
	      file  to	a  recordable  CD  medium.   With this ISO option, the
	      --size HD option is allowed.

       --nocompact
	      For faster kernel loading from a floppy, LILO map compaction  is
	      normally	enabled.  This	option	will disable map compaction by
	      omitting the lilo "-c" switch.

       --noformat
	      Suppresses creation of a new filesystem on the boot floppy. This
	      option  may  be used only when you know that the floppy you will
	      be writing upon is formatted with the same filesystem as	speci‐
	      fied by "--fs XXX" (default is ext2).

       --root <device>
	      Specify  the  root filesystem for the kernel on the boot floppy.
	      The currently mounted root is taken as  the  default  specifica‐
	      tion.

       --size [ 1440 | 1200 | 2880 | HD ]
	      The  default  floppy disk size is 1440, meaning a 1.44MB floppy.
	      When --iso is specified, the  default  size  is  2880.   Allowed
	      specifications  are 1200, 1440, or 2880, meaning a 1.2MB, 1.44MB
	      or 2.88MB floppy, respectively.  No other floppy disk sizes  are
	      supported.

	      The HD specification, meaning "hard disk", may only be used with
	      the --iso option, to indicate a 16MB hard disk is to  be	gener‐
	      ated for emulation.  This allows for very large kernel / initial
	      ramdisk combinations on CD-R.  The hard disk  image  is  created
	      using loopback devices "/dev/loop0" and "/dev/loop1", which must
	      be free to utilize this size option.

       --version
	      Print the version number of mkrescue, then terminate.

SEE ALSO
       lilo(8),	  lilo.conf(5),	  mkfs(8),   dd(1),   mount(8),	  mkinitrd(8),
       mkisofs(8), cdrecord(1).

AUTHOR
       John Coffman <johninsd@san.rr.com> (3.0)

				  16 Nov 2004			   MKRESCUE(8)
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