The miners turned the community into a slave camp, but Cobb was thankfully able to escape with a bunch of silicax crystals before trekking through the desert.
Just when it seemed like hope was lost, a pack of Jawas drove by and picked him up, and he inevitably traded his crystals for the Mandalorian armor he’s been wearing.
With a backstory that somewhat lined up with the characters’ franchise debut in Chuck Wendig’s 2015 novel Aftermath, Timothy Olyphant’s Cobb told Mando about how he came to be in possession of Boba Fett’s armor.