basile wrote: > Point 4 is what I think would be useful to Gentoo mainstream. The > speed one gets from RAM totally beats a LiveCD using unionfs which has > to periodically return to the slow cdrom.
This is already possible. With current genkernel (genkernel-9999 or genkernel-3.4.10.903), you can boot with 'docache unionfs', which will copy the squashfs to tmpfs, mount it, and then use unionfs-fuse to create a union with another tmpfs. Genkernel has offered the 'docache' option for quite a while, which has mostly the safe effect, but without the unionfs, it uses nasty tricks like copying some stuff to a tmpfs and then doing lots of symlinks into the squashfs. Either way, it's entirely memory based after initial boot. -- Andrew Gaffney http://dev.gentoo.org/~agaffney/ Gentoo Linux Developer Catalyst/Genkernel + Release Engineering Lead
