Hello, I'm not really sure, but I believe the problem is the fact that e3 doesn't generate a really valid elf header. Anyway, there are at least two options to fix this without actually fixing the elf header. To add the option --force-execve to the upx command line (this may not work on kfreebsd or amd64, though), or to simply wipe out the upx call.
In this case upx just saves 3kb size, but it would add a number of requirements that to run e3, as it requires to have /proc working, and to uncompress the binary to /tmp, -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]