HOWTO - How To Update Your System with DVD or CD disk(s)
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Contents |
Preface
From time to time there is an question on forum: is there possible to update the system by packages form installation CDs (DVD) ?
This article is a try to answer.
The idea is simple: we make a local repo from DVD and use updateos (or KatePKG) as usually. In case of CDs we should make more repos - one for each CD - but the general idea is the same.
What makes repository in KateOS
Repository is simple a folder containing packages files (*.tgz), checksum files (*.md5) and one file named update.list. The update.list file contains a list of packages (stored in repo) with date of build for each package.
On DVD disk we have already packages *.tgz - there is a lack of the rest of files. Naturally we can't write it down to the DVD and copying it all to HDD is a poor idea. But we can use symbolic links.
How to do this
- On the beginning we make a folder that will be our local repo. Let it be /home/user/DVD_repo. (user is a user home folder).
- We should know where the DVD is mounted - suppose that this is /mnt/cdrom folder.
- Now we make as follows:
cd /home/user/DVD_repo
find /mnt/cdrom/ -name "*.tgz" -exec ln -s {} . \;
makerepo .
- First command move us to the folder where we make repo.
- Second makes the symlinks to files *.tgz on DVD - by dink of this we shouldn't copy this files to HDD.
- Third makes the repo - calculates md5 sums and makes update.list file.
The last command may take quite a long time.
The next step is to set aside the file /etc/updateservers and make new one with only one record: file:///home/user/DVD_repo.
It's may look like this:
su mv /etc/updateservers /etc/updateservers.org echo "file:///home/user/DVD_repo" > updateservers
Now we are ready to update our system by updateos or KatePKG.
- After updateing we restore original file /etc/updateservers (as root):
mv /etc/updateservers.org /etc/updateservers
Notes
- All process may be more time-consuming than installation from the beginning. During an installation there is no need to check and remove previous versions of packages.
- Since KateOS 3.6 there will be a ready-made repo folder on each CD and DVD so there will be no need to make it what is time-consuming process.
- This method can be used to install GNOME and KDE from extensions CD (or mounted CD images).
