On Wed, 2009-08-19 at 02:13 +0200, Eberhard Moenkeberg wrote:
Hi,
On Wed, 19 Aug 2009, Carlos E. R. wrote:
On Wednesday, 2009-08-19 at 00:11 +0200, Hans Witvliet wrote:
can upgrade much easier than with the need to boot from installation medium.
Without _any_ downtime?
You can bet there will be a kernel update, so going down is inevitable..
Not only that. Many programs get new configuration files, with the original one moved to a backup (.rpmold). Or the old one is preserved and the new one copied alongside (.rpmnew). In any case, the admin has got to review all those before the system is fully operational after the upgrade. Some services run perfectly the first moment, some others need a lot of reconfiguration.
So, yes, there is downtime.
Please stop suggesting "it is impossible to survive a dist upgrade".
Usually you get a mail in every case of .rpmnew or .rpmold, so you can fix if necessary on-the-fly.
Next we need the chance to survive during dist upgarade - noone is requesting 100% instantly.
SLES/SLED claims to be "Enterprise", haha...
So the limitation of the duration for support is in contrast with the request for LTS, like the five years offered by Ubuntu. SLES may probably have "enterprise support", but that's only _within_ one release. A co-worker has to upgrade a couple of hundred machines with SLES running SAP. A very time consuming error-prone manual job, no smooth upgrade procedure. personally, or from the view of my department, the down-time isn't such a big deal. We make a nightly snapshot of an xen-image and do several test-runs, untill we are satisfied with the result. Doing the real upgrade nightly or in a special assigned weekend. Hans -- To unsubscribe, e-mail: opensuse-factory+unsubscribe@opensuse.org For additional commands, e-mail: opensuse-factory+help@opensuse.org