On Mon, Jul 16, 2012 at 3:30 AM, Duncan <1i5t5.dun...@cox.net> wrote: > Thinking in that direction does stimulate yet another idea, tho. What > about a squashfs root? AFAIK squashfs is read-only at use time, thus > enforcing actually mounting something else to write anything, eliminating > many of the down sides of sticking with the initial ramfs root, but it > would allow the same flexibility in terms of sticking whatever into it at > create-time, while only taking the memory necessary for what's actually > stuck in it at create-time.
It is possible, see: https://github.com/mkdesu/liberte/blob/master/src/root/initrd/init https://github.com/mkdesu/liberte/blob/master/src/etc/fstab The setup above is somewhat different from what you have in mind (SquashFS image is located on disk, and contains the complete live filesystem, not just a skeleton), so mounting read-writable branches can be deferred to the regular post-initramfs services (such as localmount) — on the other hand, maybe you want to do the same (mount branches read-only in initramfs, and remount them read-write in an init.d service). -- Maxim Kammerer Liberté Linux: http://dee.su/liberte
