Man Mkrescue en anglais
MKRESCUE(8)                                                        MKRESCUE(8)



 

NAME


       mkrescue - make rescue floppy

 

SYNOPSIS


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

 

DESCRIPTION






       mkrescue takes its specification 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 
              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.  "" must be hit to proceed from these pauses.

       --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 
              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   and  --kernel 
              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 initial 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 
              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  (3.0)



                                  16 Nov 2004                      MKRESCUE(8)