wineboot create prefix in wrong directory?

[kqha]

I'm currently building my own custom live linux distro for one of my projects using slax. My problem is, at every boot session I run "wineboot -i" from rc.local script, but instead of building the prefixes in /root, the prefix were created at /

Weird thing is, when I run the wineboot from shell it create the prefixes correctly. Running whoami prior to running wineboot in rc.local shows it indeed run under root user correctly.

Any idea how to fix this?

[kqha]

btw, I'm currently using wine 1.5.14