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Get Dreamlinux using jigdo-lite

This version was saved 14 years, 4 months ago View current version     Page history
Saved by Paul G. Taylor
on November 1, 2009 at 9:14:21 am
 


 

Introduction

 

While I have been using zsync to update ISO files for some time, I have become aware that jigdo, jigdo-lite and jigdo-file do a similar job. This exercise is to try out jigdo and compare it with zsync.

 

Procedure

 

I checked using Synaptic and found that I had jigdo already installed from the Ubuntu [Feisty] repositories. The version I am using is : --

 

paul@PAULS-Klikit:/mnt/Data1/NewHome/paul/ISOfiles$ jigdo-lite -v

 

Jigsaw Download "lite"

Copyright (C) 2001-2005  |  jigdo@

Richard Atterer          |  atterer.net

Loading settings from `/home/paul/.jigdo-lite'

 

jigdo-lite/0.7.3 (GNU Wget 1.10.2; )

paul@PAULS-Klikit:/mnt/Data1/NewHome/paul/ISOfiles$ jigdo -v

jigdo version 0.7.3

paul@PAULS-Klikit:/mnt/Data1/NewHome/paul/ISOfiles$ jigdo-file -v

jigdo-file version 0.7.3

 

  • I first built a template from an existing ISO file.
  • Using this template, after renaming the file to .old, I ran jigdo-lite to 'update' the ISO using the '.old' and the '.jigdo' files as input.
  • The process ran and built the 'updated' ISO file, checked it for md5sum equivalence and verified it as successfully created.
  • Output of this process is documented below.

 

Exemplar

 

Documentation of the process in dummy run.

 

Update Dreamlinux with jigdo-lite

 

 

ls -l

total 716060

-rw------- 1 paul paul 731076608 2008-11-01 22:43 DL3.5-RC4_211008.iso

-rw-r--r-- 1 paul paul        55 2008-10-31 22:16 DL3.5-RC4_211008.iso.md5sum

-rw-r--r-- 1 paul paul   1428059 2008-10-31 23:24 DL3.5-RC4_211008.iso.zsync.save

-rw-r--r-- 1 paul paul      5723 2008-11-01 23:52 zsync-update.txt

paul@PAULS-Klikit:/mnt/Data1/NewHome/paul/ISOfiles$ jigdo-file DL3.5-RC4_211008.iso

jigdo-file: Invalid command `DL3.5-RC4_211008.iso'

(Must be one of: make-template mt make-image mi print-missing pm print-missing-all pma verify ver scan sc list-template ls md5sum md5)

jigdo-file: Try `jigdo-file -h' or `man jigdo-file' for more information

paul@PAULS-Klikit:/mnt/Data1/NewHome/paul/ISOfiles$ jigdo-file -mt DL3.5-RC4_211008.iso

jigdo-file: invalid option -- m

jigdo-file: Try `jigdo-file -h' or `man jigdo-file' for more information

paul@PAULS-Klikit:/mnt/Data1/NewHome/paul/ISOfiles$ jigdo-file mt DL3.5-RC4_211008.iso

jigdo-file make-template: Not all of --image, --jigdo, --template specified.

(Attempt to deduce missing names failed.)

jigdo-file: Try `jigdo-file -h' or `man jigdo-file' for more information

paul@PAULS-Klikit:/mnt/Data1/NewHome/paul/ISOfiles$ jigdo-file mt --image  DL3.5-RC4_211008.iso

Warning - no files specified. The template will contain the complete image contents!

Finished - image size is 731076608 bytes.

paul@PAULS-Klikit:/mnt/Data1/NewHome/paul/ISOfiles$ ls -l

total 1424744

-rw------- 1 paul paul 731076608 2008-11-01 22:43 DL3.5-RC4_211008.iso

-rw-r--r-- 1 paul paul        55 2008-10-31 22:16 DL3.5-RC4_211008.iso.md5sum

-rw-r--r-- 1 paul paul   1428059 2008-10-31 23:24 DL3.5-RC4_211008.iso.zsync.save

-rw-r--r-- 1 paul paul       256 2009-01-21 21:32 DL3.5-RC4_211008.jigdo

-rw-r--r-- 1 paul paul 724972911 2009-01-21 21:32 DL3.5-RC4_211008.template

-rw-r--r-- 1 paul paul      5723 2008-11-01 23:52 zsync-update.txt

paul@PAULS-Klikit:/mnt/Data1/NewHome/paul/ISOfiles$ cat DL3.5-RC4_211008.jigdo

# JigsawDownload

# See <http://atterer.net/jigdo/> for details about jigdo

 

[Jigdo]

Version=1.2

Generator=jigdo-file/0.7.3

 

[Image]

Filename=DL3.5-RC4_211008.iso

Template=DL3.5-RC4_211008.template

Template-MD5Sum=grWhJ7aDpiFgE1XsHWcJlQ

 

[Servers]

 

[Parts]

paul@PAULS-Klikit:/mnt/Data1/NewHome/paul/ISOfiles$ jigdo-lite DL3.5-RC4_211008.jigdo

 

Jigsaw Download "lite"

Copyright (C) 2001-2005  |  jigdo@

Richard Atterer          |  atterer.net

Loading settings from `/home/paul/.jigdo-lite'

 

-----------------------------------------------------------------

Images offered by `DL3.5-RC4_211008.jigdo':

  1: DL3.5-RC4_211008.iso

 

-----------------------------------------------------------------

If you already have a previous version of the CD you are

downloading, jigdo can re-use files on the old CD that are also

present in the new image, and you do not need to download them

again. Mount the old CD ROM and enter the path it is mounted under

(e.g. `/mnt/cdrom').

Alternatively, just press enter if you want to start downloading

the remaining files.

Files to scan:

 

Not downloading .template file - `DL3.5-RC4_211008.template' already present

 

-----------------------------------------------------------------

Merging parts from `file:' URIs, if any...

/usr/bin/jigdo-file: Output file `DL3.5-RC4_211008.iso' already exists - delete it or use --force

jigdo-file failed with code 3 - aborting.

paul@PAULS-Klikit:/mnt/Data1/NewHome/paul/ISOfiles$ ls -l

total 1424744

-rw------- 1 paul paul 731076608 2008-11-01 22:43 DL3.5-RC4_211008.iso

-rw-r--r-- 1 paul paul        55 2008-10-31 22:16 DL3.5-RC4_211008.iso.md5sum

-rw-r--r-- 1 paul paul   1428059 2008-10-31 23:24 DL3.5-RC4_211008.iso.zsync.save

-rw-r--r-- 1 paul paul       256 2009-01-21 21:32 DL3.5-RC4_211008.jigdo

-rw-r--r-- 1 paul paul 724972911 2009-01-21 21:32 DL3.5-RC4_211008.template

-rw-r--r-- 1 paul paul      5723 2008-11-01 23:52 zsync-update.txt

paul@PAULS-Klikit:/mnt/Data1/NewHome/paul/ISOfiles$ mv DL3.5-RC4_211008.iso DL3.5-RC4_211008.iso.old

paul@PAULS-Klikit:/mnt/Data1/NewHome/paul/ISOfiles$ time jigdo-lite DL3.5-RC4_211008.jigdo

 

Jigsaw Download "lite"

Copyright (C) 2001-2005  |  jigdo@

Richard Atterer          |  atterer.net

Loading settings from `/home/paul/.jigdo-lite'

 

-----------------------------------------------------------------

Images offered by `DL3.5-RC4_211008.jigdo':

  1: DL3.5-RC4_211008.iso

 

-----------------------------------------------------------------

If you already have a previous version of the CD you are

downloading, jigdo can re-use files on the old CD that are also

present in the new image, and you do not need to download them

again. Mount the old CD ROM and enter the path it is mounted under

(e.g. `/mnt/cdrom').

Alternatively, just press enter if you want to start downloading

the remaining files.

Files to scan:

 

Not downloading .template file - `DL3.5-RC4_211008.template' already present

 

-----------------------------------------------------------------

Merging parts from `file:' URIs, if any...

Found 0 of the 0 files required by the template

Successfully created `DL3.5-RC4_211008.iso'

 

-----------------------------------------------------------------

Finished!

The fact that you got this far is a strong indication that `DL3.5-RC4_211008.iso'

was generated correctly. I will perform an additional, final check,

which you can interrupt safely with Ctrl-C if you do not want to wait.

 

OK: Checksums match, image is good!

 

real    4m57.577s

user    0m42.291s

sys     0m39.362s

paul@PAULS-Klikit:/mnt/Data1/NewHome/paul/ISOfiles$ ls -l

total 2139408

-rw-r--r-- 1 paul paul 731076608 2009-01-21 21:53 DL3.5-RC4_211008.iso

-rw-r--r-- 1 paul paul        55 2008-10-31 22:16 DL3.5-RC4_211008.iso.md5sum

-rw------- 1 paul paul 731076608 2008-11-01 22:43 DL3.5-RC4_211008.iso.old

-rw-r--r-- 1 paul paul   1428059 2008-10-31 23:24 DL3.5-RC4_211008.iso.zsync.save

-rw-r--r-- 1 paul paul       256 2009-01-21 21:32 DL3.5-RC4_211008.jigdo

-rw-r--r-- 1 paul paul 724972911 2009-01-21 21:32 DL3.5-RC4_211008.template

-rw-r--r-- 1 paul paul     16384 2009-01-21 21:50 jigdo-file-cache.db

-rw-r--r-- 1 paul paul      5723 2008-11-01 23:52 zsync-update.txt

paul@PAULS-Klikit:/mnt/Data1/NewHome/paul/ISOfiles$

 

Note:  This is the saved output of my console window, mistakes and all.

 

 

Links

 

Debian Jigdo mini-HOWTO

Peter Jay Salzman

2004-01-08, v1.1

 

jigdo site : --   http://atterer.net/jigdo/

 

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