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I'd like to install RedHat 6.4 (32bits) on a VM. The problem is that I don't have the iso file. Instead, I have access to a folder (standard RedHat folder with subfolders like images, isolinux, etc.)

I can't manage to recreate a bootable iso file from this folder. Each time I tried, VirtualBox say FATAL: no bootable medium found! System halted. I assume that my ISO file is not built correctly (not bootable?).

I think virtualBox is configured correctly (the iso file is set for the virtual CD/DVD).

How I tried to create the ISO file:

  • using programs: isoCreator, powerIso
  • using command: mkisofs -o genertatedIso.iso /MyRep

Thanks for your help,

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2 Answers 2

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Here an example: 

mkisofs -r -R -J -T -v -no-emul-boot -boot-load-size 4 -boot-info-table -V 'my-rhel6.4' -p 'RHEL6.4' -A 'RHEL6.4' -b isolinux/isolinux.bin -c isolinux/boot.cat -o /var/tmp/my-rhel6.4.iso /path-of-your-distro
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You will need to specify a boot image and a boot catalog for mkisofs to make the disk bootable. These files are often called isolinux.bin and boot.cat respectively, and you should specify them to mkisofs via the -b and -c flags:

mkisofs -b isolinux.bin -c boot.cat -no-emul-boot -o genertatedIso.iso /MyRep
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    Thanks for your help! Looks like I'm able to boot on something, but the Image appeared to be damaged ISOLINUX 4.02 2010-07-21 ETCDisolinux: Image checksum error, sorry... Boot failed
    – DavidL
    Commented Oct 26, 2015 at 14:21

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