Are you suggesting that I should just yum update this F10
installation
instead of trying to use the USB key disc?
# yum --enablerepo=rawhide update syslinux
will update only the syslinux package and it's dependencies if any.
Your F10 will not be
affected.
If I press the <Enter> key, I am given a box that says
'Password'
From your regular F10 install, try this as root with the USB plugged
in.
cryptsetup isLuks /dev/sdb1
--
Gireesh