Porteus 4.0 not booting with ext4 filesystem!

[vot]

<r>Hello there, I just discovered Porteus and am hoping to install this onto my USB flash drive. This is what I did:<br/>
1. Formatted USB as ext4<br/>
2. Copied EFI, boot, porteus folders into the USB (EFI install)<br/>
3. Set UEFI BIOS to boot from the USB first<br/>
4. Turned off Secure Boot<br/>
<br/>
However, when I boot, the usual grub menu shows up, not porteus.<br/>
What's wrong? SOS, <E></E>, Please Help!</r>

[Ed_P]

EFI doesn't work on ext4. Format drive as FAT32.