On Sun, 2006-06-11 at 09:51 +0300, Nadav Har'El wrote: > On Sat, Jun 10, 2006, E Leibovich wrote about "Upgrading live RH9": > > Given a live server that runs many relatively uncommon > > programs (for instance openACS) and which runs RH9. > > How would you upgrade it with minimal downtime? > > 1) Is upgrading to Fedora advisable? It seems it'd > > It is very easy to upgrade from Redhat 9 to the latest Fedora, but "minimal > downtime" is the exact opposite of what you should expect. You should > expect the upgrade to take about 10 hours (!!), and if you are upgrading > with CDroms and not babysitting the machine all the time, expect 2 days > of downtime... > > It appears that Fedora's upgrade process somehow sucks algorithmically, > and during all these 10 hours Fedora churns your hard disk and spins > up and spins down the CD-ROM. It looks to me like some sort of in-memory > caching (most modern computers have huge amounts of memory which goes to > waste during the installation process) and one time analysis of the disk's > contents could have gone a long way of making the upgrade process quicker.
Umm... I guess YMMV. This week-end I upgraded my FC3 machine to FC5... Total downtime, including LVM and software RAID rebuild (I added a forth drive) was around 5 hours. (including back/restore cycle for ~200GB) > > Not to mention that I never understood why in Fedora you cannot upgrade > a running system (like normal "yum update" just works). You -can-. A. I doubt that yum upgrade from RH9 to FC4/5 will work... too many changes. B. It may/will work, but it's not -supported-. (Read: You're on your own) Gilboa ================================================================= To unsubscribe, send mail to [EMAIL PROTECTED] with the word "unsubscribe" in the message body, e.g., run the command echo unsubscribe | mail [EMAIL PROTECTED]
