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Full Discussion: Genisoimage "Read-Only" Commandline?
Top Forums UNIX for Advanced & Expert Users Genisoimage "Read-Only" Commandline? Post 302925791 by ygemici on Wednesday 19th of November 2014 10:54:05 AM
Old 11-19-2014
ok you want to recreate the own iso-file but fot the "-boot-info-table" options trigger the mkisofs/genisoimage so it wants to regenerate the boot table located is in the your boot-image and then its fails because isolinux.bin is default read-only permission from iso or mounted iso.

if you dont need to edit the boot image and/or boot-info-table *(iso fs sys infors,size of boot image,checksum info and all its locations...)
so remove the -boot-info-table your commandline and your command then your process must be works.

but the default/recommend way , copy the contents of all files from iso to writable an empty (newly created) directory and then execute the default mkisofs/genisoimage commands on to the this directory.

good luck
regards
ygemici
This User Gave Thanks to ygemici For This Post:
LinQ
 

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LEARN ABOUT CENTOS

mkbootdisk

MKBOOTDISK(8)						      System Manager's Manual						     MKBOOTDISK(8)

NAME

       mkbootdisk - creates a stand-alone boot floppy for the running system

SYNOPSIS

       mkbootdisk [--version] [--noprompt] [--verbose]
		  [--device devicefile] [--size size]
		  [--kernelargs <args>] [--iso] kernel

DESCRIPTION

       mkbootdisk  creates  a  boot  floppy  appropriate for the running system. The boot disk is entirely self-contained, and includes an initial
       ramdisk image which loads any necessary SCSI modules for the system. The created boot disk looks for the root filesystem on the device sug-
       gested by /etc/fstab.  The only required argument is the kernel version to put onto the boot floppy.

OPTIONS

       --device devicefile
	      The  boot image is created on devicefile. If --device is not specified, /dev/fd0 is used. If devicefile does not exist mkinitrd cre-
	      ates a 1.44Mb floppy image using devicefile as the filename.

       --noprompt
	      Normally, mkbootdisk instructs the user to insert a floppy and waits for confirmation before continuing. If --noprompt is specified,
	      no prompt is displayed.

       --verbose
	      Instructs mkbootdisk to talk about what it's doing as it's doing it. Normally, there is no output from mkbootdisk.

       --iso  Instructs mkbootdisk to make a bootable ISO image as devicefile.

       --version
	      Displays the version of mkbootdisk and exits.

       --kernelargs args
	      Adds  args  to the arguments appended on the kernel command line. If this is not specified mkbootdisk uses grubby to parse the argu-
	      ments for the default kernel from grub.conf, if possible.

       --size size
	      Uses size (in kilobytes) as the size of the image to use for the boot disk.  If this is not  specified,  mkbootdisk  will  assume  a
	      standard 1.44Mb floppy device.

SEE ALSO

       grubby(8) dracut(8)

AUTHOR

       Erik Troan <ewt@redhat.com>

4th Berkeley Distribution					  Tue Mar 31 1998						     MKBOOTDISK(8)
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