Updater seems to have problems with links
Current version of updater (v60.4.6) has problems with links. It is unable to replace them if it encounters them. This is probably because it recognizes them as directories and tries to write data to them. This of course fails if target is not a directory or does not even exists. We should expect that there can be something like link and if it is valid link then we should follow it. If there is invalid link then we should replace it with new directory (or should we create target directory instead?).
This might be fixed by not using busybox so this issue should be revisited when we drop busybox.