On Fri, May 25, 2012 at 11:57:28AM BST, Muhammad Yousuf Khan wrote: > well, I have questions about upgrading Linux. since i have been using > Microsoft for years the concept of upgrade I think is different from > Linux upgrade. > > in a testing environment I was trying to upgrade the security patches > and I run the command > apt-get upgrade. > It ran fine, but at the end it upgraded my whole OS, first my test > machine was showing Debian version 6.0.4 now after the upgrade it > shifted to Wheezy/SID which I think is unstable.
Read below [0]. > In Microsoft when we upgrade the OS. it downloads only the security > and OS patches. > > So the question are > > 1. how to upgrade only the security patches? aptitude update && aptitude safe-upgrade [1] > 2. if the upgrade patch trigger any critical issue. Like any service > like hosting, filesharing or squid got effected by the update, how > come we know which patch cause this problem and how to remove that > specific patch because in Microsoft I have seen that security patches > and OS patches some time make problems when run along with ongoing > services. There are no "patches" like in Windows. Patches in free (open source) software are for source code [2]. Upgrading a package you effectively installing a new version of the software. > 3. how to revert back to old OS, for example, in my case i upgraded my > system from 6.0.4 to Wheezy/SID now want to revert things back. You can always install an older version of the package. [0] It seems like you had several entries in your sources.list file(s) - post the content of your file here. [1] safe-upgrade will only upgrade packages and won't remove any other ones [2] yes, I know, you can have binary patches as well Cheers, -- rjc -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/20120525115409.ga13...@linuxstuff.pl
