Santiago Vila wrote: > On Fri, 14 Jan 2005, Jay Berkenbilt wrote: > >> I've read Section 5.9.3 of the developer's reference and understand it >> clearly. Is that still the best way to go? > > Not always, unfortunately. Very often, the upgrade will be smoother if > you use empty dummy packages wisely. It's a pity that developer's > reference does not mention dummy packages.
Actually it does mention them (calling them "transition packages") in section 6.7.7. It's too bad section 5.9.3 doesn't cross-reference it. > For example, you can create a dummy (empty) libvips7.10-doc which > depends on libvips-doc and has section: oldlibs. Then libvips-doc does > not need to conflict with every version of libvips7.10-doc, only with > the non-dummy versions. To Jay: This is good advice and I second it. To assure smooth upgrades, remember to have libvips-doc Replace the non-dummy versions of libvips7.10-doc as well as Conflicting against them. Good luck with having the section changed from doc to oldlibs in the override file; I had great difficulty getting this to happen when converting some binary packages of Cernlib to dummy packages. > This way, "apt-get upgrade" will install libvips-doc without requiring > "apt-get dist-upgrade", and this will be done automatically and > without user intervention, Are you certain of that? My understanding is that apt-get upgrade will neither remove current packages nor install new ones, only upgrade packages that can otherwise be upgraded. So "apt-get upgrade" will just output something like "libvips7.10-doc is being held back" -- it will not upgrade libvips7.10-doc to the dummy package nor will it install the new libvips-doc package. "apt-get dist-upgrade" would still be required for that. Unless "apt-get upgrade" has special handling for dummy packages that I'm not aware of? regards, -- Kevin B. McCarty <[EMAIL PROTECTED]> Physics Department WWW: http://www.princeton.edu/~kmccarty/ Princeton University GPG public key ID: 4F83C751 Princeton, NJ 08544 -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
