>>> So, is there a technique or an open source tool that
>>> will create a dvd iso given the cd iso images?
>> I've seen the DVD ISO files on select mirrors. it can be
>> difficult to reliably transfer a> 4GB file over http/ftp
I've only had one DVD iso dowload corrupted over http.
I use a fast mirror and d/l overnight with a wget bash
script, run by cron.
#! /bin/bash
# the command to download the iso shows in qps as 'wget'
#------------------------------------------------------#
# SITE_URL is the url of the site to download
# WAIT_TIME is the time to wait in seconds between
downloading files
# DOWNLOAD_DIR is the destination for the downloaded files
#------------------------------------------------------#
OS_VERSION="5.5"
SITE_URL="http://www.mirrorservice.org/sites/mirror.centos.org/$OS_VERSION/isos/i386";
DOWNLOAD_DIR="/downloads/linux/centos/$OS_VERSION/DVD"
#------------------------------------------------------#
# get the CentOS 5.5 DVD md5sum.txt file.
wget \
-a $DOWNLOAD_DIR/wget.log \
--directory-prefix=$DOWNLOAD_DIR \
$SITE_URL/md5sum.txt
# get the CentOS 5.5 DVD iso file.
wget \
-a $DOWNLOAD_DIR/wget.log \
--directory-prefix=$DOWNLOAD_DIR \
$SITE_URL/CentOS-$OS_VERSION-i386-bin-DVD.iso
#------------------------------------------------------#
exit 0
Always md5sum check the iso is downloaded OK, and if you
burn to a DVD+RW disk, you can then reuse that many times.
HTH
Keith Roberts
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