Binary package “crossgrader” in ubuntu oracular

Debian crossgrading tool

 This package provides a tool to crossgrade
 (i.e. change the architecture) of a Debian install.
 It also provides a tool to check if all packages were
 successfully crossgraded.
 .
 The crossgrader automatically handles binaries required
 by the initramfs, packages marked as automatically
 installed, and crossgrades to architectures not natively
 supported on the current CPU.