dr_psikick, I don't have any experience with booting from USBs. If you USB OS's have their own bootloader, you could try putting this into your Grub2 /etc/grub.d/40_custom file. In Grub 2, the first drive is 0, but the first partition is now 1 - so as an example, sdb1 would be (hd1,1): menuentry "Boot from USB" { set root=(hd1,1) chainloader +1 } I don't know if it would be as simple as this or not, but you could try it. Add the contents to /etc/grub.d/40_custom below the existing lines, then "sudo update-grub" to incorporate it into the grub menu. Boot, select this menuentry, and see what happens. If it doesn't work, just reboot to your normal choice. If I can find a definitive answer I'll post it in the thread. Dave drs305
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