On 03/15/2011 02:05 PM, Grant wrote: > A dev is asking me to switch to a hardened profile in order to test a > fix. I'm happy to go through the process, but is there a chance my > laptop could be unusable after the switch? If that happens I'll be in > real trouble. Will I be able to switch back to a non-hardened profile > afterward? I plan to follow this guide: > > http://www.gentoo.org/proj/en/hardened/hardenedfaq.xml#hardenedprofile > > BTW, are emerge -e world and emerge -e system both necessary? I > thought emerge -e world would rebuild everything.
Switching to hardened is safe. The switch back should be, too, although I haven't personally tried it. (Why would you switch back?) You emerge system first, and then world so that your world is built by a hardened toolchain. When you compile gcc/glibc with USE=hardened, it gives them super powers.