- Not easy…
- Install and boot kernel linux-image-amd64. Or set environment variable ‘export ARCH_DOWNLOAD=linux64’. Or not. Even if installed by tb-updater or manually. It’s a dead end. Won’t work in Non-Qubes-Whonix. At least not with the Default/Download version. Because the architecture is 32 bit.
- Experiment with multiarch. Try installing 64 bit packages also. Looks like an inefficient solution.
- Build Non-Qubes-Whonix 64 bit from source code.
Quote https://blog.torproject.org/blog/tor-browser-55a4-hardened-released
For now this is for Linux 64bit systems only but we are thinking about supporting OS X and Windows in the future as well.Doesn't look like Linux 32 bit hardened TBB downloads will be provided anytime soon.
EDIT:
It’s also very unlikely, that I will be producing downloadable 64 bit versions of Non-Qubes-Whonix. Too much maintenance effort. I try balance it by providing 32 bit Non-Qubes-Whonix for most/lower end systemd and providing 64 bit Qubes-Whonix for higher end systems.
Non-Qubes-Whonix 14 will be 64 bit.
(full discussion on 32 vs 64 bit: https://forums.whonix.org/t/state-of-offical-64-bit-builds)
- Works out of the box. Because it’s 64 bit.