Red Hat Bugzilla – Bug 816272
Preupgrade is inefficient on intermitent and slow internet connections
Last modified: 2013-07-31 20:39:23 EDT
Description of problem:
I live in a place where internet connectivity is slow (my connection maxes at 28kB/s for sustained downloads) and worse intermittent both because I move around, but also due to power cuts for example. Using pre-upgrade under these conditions is very frustrating as every time it is re-started it re-downloads the initrd.img and squashfs.img (and it spends and inordinate amount of time after downloading initrd.img before starting on squashfs.img, not sure why that is, perhaps another issue). This means that unless the computer is connected for more than 3 or 4 hours, it doesn't actually advance at all as it is simply re-downloading things that were downloaded before.
It would be great if preupgrade could have a "continue" mode, in which it will not re-download the initrd and squashfs.img until AFTER all the packages are downloaded. Ie:
On first run, it will work as normal
On a second and subsequent runs, perhaps if started with a -C switch, it will jump straight to downloading packages, and then, as a final check, re-download updated squashfs and initrd images.
Version-Release number of selected component (if applicable):
Steps to Reproduce:
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