I tried to reproduce this from Martin Wimpress' recipe:
* Do an install with "use full disk" (which creates a swap partition on /dev/vda5)
* Reinstall in the same mode
* Before starting ubiuqity, /dev/vda5 is active in the live session (that's done by a casper script that auto-detects and enables swap partitions)
* I see in syslog that mkswap succeeded and was done, and wiped the old swap signature, so partman did its thing.
I tried to reproduce this from Martin Wimpress' recipe:
* Do an install with "use full disk" (which creates a swap partition on /dev/vda5)
* Reinstall in the same mode
* Before starting ubiuqity, /dev/vda5 is active in the live session (that's done by a casper script that auto-detects and enables swap partitions)
* I see in syslog that mkswap succeeded and was done, and wiped the old swap signature, so partman did its thing.
I tried that three times, no luck so far :-/