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To give context, what happens if you lose power midway through? One of the things Windows will do is first lay out the work to revert all changes in that happe
by ayende 4y ago
To give context, what happens if you lose power midway through?
One of the things Windows will do is first lay out the work to revert all changes in that happens (across potentially thousands of files). It also need to flush them to disk (very slow, even on SSD) and then perform in a manner that would survive all sorts of failures.
That is pretty expensive.
- InfamousRece 4y agoSome modern linux distros use snapper to create a snapshot prior to upgrading. This snapshot can be used to roll back the upgrade. Not only in case of power outage but also if the upgrade introduces bugs or other issues. The upgrade is still fast, so it is the best of both worlds?