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1 Burning CD Images
2 Make a DVD from the CDs
3 Space Requirements
4 Applying Delta ISOs
5 Checksums
6 Troubleshooting Downloads

Burning CD Images

Use the burning application of your choice to burn the CD images to blank CDs.

Using openSUSE

On systems running openSUSE/SUSE Linux, use the k3b program to burn the CDs. Select the option that allows burning a CD or an ISO9660 file system. Do not burn the CD images the same way as you would burn files. For more information, read the SUSE Linux Admin Guide.

From the command line you can use the program cdrecord.

cdrecord dev=/dev/cdrecorder speed=44 driveropts=burnproof -eject -v isofile

Using Microsoft® Windows® XP

According to Microsoft® (kb279157) Windows® XP does not have native support to burn ISO images to CD or DVD without the use of third party software. Generally the CD/DVD burner is bundled with Windows® software that does support the burning of ISO images and you will need to refer to that software's documentation. If not, the utility ISO Recorder Power Toy can add this capability to Windows® XP.

Using Mac OS X 10.3 and above

In the Finder, open the Go menu and select Utilities. In the Utilities folder you will find an application called Disk Utility. Open it, then drag and drop the downloaded ISO image in to the left hand sidebar. Select the image, click Burn and insert your CD/DVD. For more information check Apple's support page on the subject.

Make a DVD from the CDs

See the CD lerden DVD Yaratma article

Space Requirements

When delivered as five CD ISOs, openSUSE requires five separate downloads of approximately 700 MB each, 3.5 GB in total.
When delivered as a single DVD ISO, openSUSE requires one download of 4.7 GB.
Delta ISOs are considerably smaller than the original ISO images. Check the size on for each specific delta ISO.

The following table shows estimates of how long the download process takes at various connection speeds:

	1 CD ISO (700 MB)	5 CD ISOs (3.5 GB)	1 DVD ISO (4.7 GB)
56 KBit	28 hours	139 hours	187 hours
64 KBit (ISDN)	25 hours	122 hours	164 hours
1024 KBit (Broadband)	1.5 hours	8 hours	11 hours
2048 KBit (Broadband)	45 minutes	4 hours	5.5 hours
8192 KBit (Broadband)	12 minutes	1 hour	1.5 hours
24 MBit (ADSL2)	4 minutes	20 minutes	28 minutes
100 MBit (Fibre)	1 minute	5 minutes	7 minutes

Applying Delta ISOs

Delta ISOs allow you to download a small file instead of the complete ISO if you have the previous ISO. To use this feature, you need the package deltarpm that is installed by default. The syntax for applydeltaiso is:

applydeltaiso old delta new

For example:

applydeltaiso SUSE-10.0-CD-OSS-i386-Beta1-CD1.iso \
              SUSE-10.0-CD-OSS-i386-Beta1_Beta2-CD1.delta.iso \
              SUSE-10.0-CD-OSS-i386-Beta2-CD1.iso

If you deleted the ISOs of the previous beta, don't worry. applydeltaiso can also work with the CDs in your CD-ROM drive. For example, if you have the SUSE 10.0-i386 Beta 1 CD 1 in your CD-ROM drive (/dev/hdc), use this command:

applydeltaiso /dev/hdc \
              SUSE-10.0-CD-OSS-i386-Beta1_Beta2-CD1.delta.iso \
              SUSE-10.0-CD-OSS-i386-Beta2-CD1.iso

Check the MD5SUMS afterwards as described in Checksums. The process of applying the Delta ISO takes quite some time and needs the disk space to unpack all ISO images.

Note: The program applydeltaiso may takes rather long time to run. On some systems it takes more than 30 minutes per CD, in which case the download of a full length iso-image might be faster!

Note: applydeltaiso.exe for Windows, download here.

Checksums

Before you burn your CD images, you should check the files for errors. A file named MD5SUMS is available. This file contains hashes for each ISO image that is available from that download location. The relevant line for the above image would look like the following:

8abac6680ecc152f103006b02f9ff67f  boot.iso

To be sure that the FTP transfer did not contain any errors, you should create this number for your own ISO image. A free md5sum checker for several operating systems can be found at md5deep.sourceforge.net. On Linux, run the command:

md5sum some.iso

If there is any difference between the output of the md5sum command and the above number, the download is broken and should be repeated.

To verify all the checksums automagically, and have your system do the verification, type:

md5sum -c MD5SUMS

Troubleshooting Downloads

Downloading large files such as ISO images is sometimes difficult. Here are some tips for avoiding the most common issues:

Consider using BitTorrent instead of FTP. Sometimes BitTorrent downloads achieve better performance rates than FTP downloads.
We strongly suggest using a download manager or an FTP client that supports resume. If download problems occur, the resume function allows you to continue a download made earlier rather than having to start over again. Many download managers also now support checksum verification, which is recommended. Choose a download manager with the features you need from this comprehensive list.
Some proxies are configured not to allow FTP access. If you are using a proxy, download from an HTTP mirror site instead.
When downloading the DVD ISO, make sure that your proxy and your download client support files larger than 2 GB. If the download stops prematurely close to that size, your client most probably does not support large files. If you are using Linux, you can use Konqueror (KDE browser), curl, or lftp (lukemftp). On MacOS, Safari and the default ftp-client should work. If you are using Windows, FileZilla is worth a try.

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