Well, as we all know the version upgrade for Ubuntu LTS Desktop environments, it is way too simple, and guided, but what happens when we have a Ubuntu Server, MySQL, Apache2, POSTFIX, BIND9. ........ etc, and many more applications.
as we update.
update all manuals say
1.Press Alt-F2 and type update-manager - devel-release
2. Click the Check button to check for new updates, blah, blah, blah
but I do if I have no graphical environment?? I'm looking to upgrade my server, well no, not despair, here are the steps to follow:
NOTE: backing up configuration files and WWW files, in case something goes wrong, in my personal experience I had problems with the MYSQL database, but just in case, make copies of these also.
take copies etc: # tar-czvf / mi_carpeta_backup / etc.tar.gz / etc / www remember to change / mi_carpeta_backup / for the location to store the copy
if Documen Root (/ var / www /) is another, change it so that you do not copy what is not.
1. first of all we update all the packages we have in the server
# apt-get dist-upgrade
(we must be careful when updating the packages we use and maintain the configuration files modified by us, such as php.ini, main.php, my.cnf)
once we have our system 8.04 with the last parcel available, proceed to upgrade to the new version
2.Install update-manager-core if you do not have it installed: sudo
apt-get install update-manager-core
3.editamos / etc / update-manager / release-upgrades and verify that the line has Prompt = "l"
so: Prompt = l
4.Lanzamos update tool
# sudo do-release-upgrade - devel-release
once launched the tool follow the onscreen instructions, first download the packages, then installed all, we must be aware that when you update the packages and installed (services), to retain the configuration files, the previous version published by us and not to alter, the operation of our services.
FINAL NOTES: * I had installed
Ocsinventory, so it does not start apache2 after updating the server, simply reinstall the application and do not modify the database that holds the information they already have stored.
* if they have problems when you are uploading the update Bind9 just press CTRL + C, to continue the upgrade of other packages, and after a review of what happened to the configuration of DNS and manually start the service.
* Iptables change some variables, such exceptions with "!" (Symbol admiration), if you have a firewall configured in this manner, change this part.
that's all:)
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