Ubuntu Customization Kit

UCK "I am using UCK 2.4.5 I get "You asked for a hybrid ISO but isohybrid command was not found"

Asked by technocp on 2011-12-01

I am using UCK 2.4.5 on Ubuntu 10.04 and I get "You asked for a hybrid ISO but isohybrid command was not found" message at the end. I have tried using both yes and no options while selecting at beginning steps.

I have also tried creating iso without making any changes like package management or using console

I can track where I am making mistake. Kindly guide

Question information

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Answered
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Ubuntu Customization Kit Edit question
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Last query:
2011-12-01
Last reply:
2012-02-22

sudo apt-get install isohybrid

Jan Owoc (jsowoc) said : #2

I have the same problem/bug (also UCK 2.4.5 on Ubuntu 10.04, also failing with "isohybrid not found" irrespective of my choice of whether I want a hybrid iso or not).

There is no package "isohybrid" in the standard repositories for Lucid: is there a ppa I can add? In later versions of Ubuntu (>= Maverik), the command "isohybrid" is provided by the package syslinux (versions >= 3.72). Ubuntu 10.04 has version 3.63 of syslinux.

The exact place where the build is failing is in line 645 of remaster-live-cd.sh. Because it gets to that line, it means that it passes "if $HYBRID = 1" (even when I selected I do not want a hybrid iso). I looked and can't find why "HYBRID = 1" at this line, even when I select I do not want a hybrid iso.

As a temporary work-around, I found replacing line 645 with the below works:
echo "WARNING: isohybrid not found; your ISO image will not be a hybrid iso..."

louvann (tmpp-att) said : #3

I have the same problem/bug (also UCK 2.4.5 on Ubuntu 10.04, also failing with "isohybrid not found" irrespective of my choice of whether I want a hybrid iso or not).

This is a real bug, the answer (on 2011-12-01: ) is not appropriate, nor is the answer appropriate for 10.0.4 where the package is not found.

I'm getting the same problem on Ubuntu 10.04.4. I had selected to have the hybrid ISO customized product. This happened twice in a row. I figured it was because I ran out of disk space the first time, but after doubling the size of my linux partition, I still get the same error. So this is totally reproducible. Also, your sudo apt-get install isohybrid totally doesn't work either. Maybe on new versions of linux?

Hey good news. I went to the folder that is supposed to contain the ISO and I still had a working ISO that I stuck on a DVD loaded full of my customizations :). I booted the DVD without any problems and ran a few programs. I don't know if it installs okay yet though. The Hybrid ISO error is still a bug and needs to be fixed. Most people wouldn't know that they still have a working end-product.

Jan Owoc (jsowoc) said : #6

Despite identifying the file and the line that contains the problem (I don't know which line is causing the problem), there are still two open bugs:

1) UCK for Lucid should not offer to create a hybrid .iso since Lucid can't have isohybrid installed

2) UCK (for any version) should not try to create the hybrid .iso if the corresponding option has been deselected

Wishlist:

-> UCK could check for the presence of isohybrid first, and then offer to create the hybrid iso only if it is present

Can you help with this problem?

Provide an answer of your own, or ask technocp for more information if necessary.

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