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

Language:
English Edit question
Status:
Answered
For:
Ubuntu Customization Kit Edit question
Assignee:
No assignee Edit question
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

Penguino29 (penguino29) said : #7

Just to add more info about Christian Blackburn's post of the ISO location.

It is under ~/tmp/remaster-new-files/livecd.iso.

source:
http://www.gonwan.com/?p=27

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