For the past several versions of the etcher app image, all that was required was setting the file to executable.
After updating my computer to Kubuntu 24.04 that no longer works. The error that comes up is
./balenaEtcher-1.19.21-x64.AppImage
[199325:0920/003234.582015:FATAL:setuid_sandbox_host.cc(158)] The SUID sandbox helper binary was found, but is not configured correctly. Rather than run without sandboxing I’m aborting now. You need to make sure that /tmp/.mount_balena5vI75z/usr/lib/balena-etcher/chrome-sandbox is owned by root and has mode 4755.
Trace/breakpoint trap (core dumped)
Is there a proper way to make the app image work under this new version of Kubuntu/Ubuntu?