🚀 go-pugleaf

System description
   1. Dell Latitude E6410
   2. Grub 2.04-20	[label displayed above boot menu]
         Debian Bullseye [11.1] on SDA1
         Debian Stretch  [9.13] on SDA7 - my day-to-day system
   3. 13 GB swap space available at sda5

Questions

When I boot to Stretch, error/warning messages go by to fast to read.
Can they be retrieved after system is running?

How do I automatically enable swap when booting?

[This preparation for updating browser and OS]

TIA