Richard Brown composed on 2015-07-13 18:50 (UTC+0200):
IMHO zypper up is the sane, safest, option for upgrading your openSUSE (Tumbleweed, 13.2, Leap, doesn't matter) installation day to day
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Sure, there's times that zypper dup makes sense, when you want a zypper up without any of it's safety features turned on, but I strongly recommend zypper up because, day to day, you want the sane safety features provided by zypper up.
OTOH, maybe what one expects from TW matters too. One size doesn't fit all. We used to have a development version called Factory. It was good for QA prior to release date of a GA. That was taken from us, replaced with a "rolling release". Those who want from TW something closer to Factory typically want those safety features turned off so that previously undiscovered bugs can get discovered by people with different hardware and configurations than BS packagers and QA automation are using. Recommends don't matter here, because they are turned off globally, in part to discover dependency breakage, so dup is virtually the only upgrade method ever used in TW here. It's needed when switching optional repos on and off. Known problems can typically be avoided or worked around with Zypper's unequaled locks system. I have no everyday interest in a "rolling release", only in helping ensure upcoming releases are better than they would have been without my contribution. I'm sure I must not be the only one who would have much less to contribute without using dup. -- "The wise are known for their understanding, and pleasant words are persuasive." Proverbs 16:21 (New Living Translation) Team OS/2 ** Reg. Linux User #211409 ** a11y rocks! Felix Miata *** http://fm.no-ip.com/ -- To unsubscribe, e-mail: opensuse-factory+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse-factory+owner@opensuse.org