Subject: extend dpkg, should be able to switch package on and off Package: dpkg Version: 1.10.18 Severity: wishlist
if you are in a high-availability-environment or clustered environment, you should be able to distribute and configure a package, and then switch it on. switch back to original in a very short time should also be possible (seconds?). and the important thing is: the time used should not depend on the size of a pkg. alternatives are not sufficient for this, and also install and remove pkg is not sufficient for this. you have different levels of "doing - undoing": - new software or old software, including configuration. current linux level (dpkg e.g.). - new software and old software this suggestion. trivial. switch pkg off, or switch another pkg version on. - new configuration and old configuration switch back and forth is trivial. somehow the old config must be saved on switch (or before, changetrack extension?) - new data and old data switch back and forth is not trivial. new programs could write damaged data and you have to have a procedure for handling this, like: switch back, and redo what you did. you would need a "changetrack for data" - new data format and old data format switch back and forth is not trivial. on install you could copy original data to new format. you would need a "changetrack for data in different formats". (trivial does not mean it is 5 min to implement, but there should be no problem in implementing it) -s. -------------------------------------------------- there was a wish 178382 already, but the comments made me write this one: >Previously Ben Collins wrote: >> You could do this with alternatives, like what is already done for major >> versions of other programs (like python 1.5/2.0/2.1/2.2). > >You can also do this by simply installing and removing the debs. > >Wichert. __________________________________ Do you Yahoo!? Exclusive Video Premiere - Britney Spears http://launch.yahoo.com/promos/britneyspears/
