Thanks knc1. This is what I get:
Code:
$ ldd Fastboot\ GUI
linux-gate.so.1 => (0xf770c000)
libmono-2.0.so.1 => not found
libc.so.6 => /usr/lib32/libc.so.6 (0xf7535000)
/lib/ld-linux.so.2 (0xf770d000)
I tried to copy libmono-2.0.so.1 in the Fastboot GUI directory, but this does not solve the issue.