On Tue, Aug 9, 2011 at 3:06 PM, Gerardo Exequiel Pozzi <[email protected]> wrote: >> >> i know btrfs can be mounted multiple times but i >> dont know about ext* (i put mine on ext4 ... i mean i WAS fixing a >> btrfs problem after all :-). i could possibly reach in thru >> /proc/1/cwd but that's a bit hacky ... > > if you have other partitions just mount it. > > You can mount the same filesystem on differents locations without bind > mounts. This is a VFS feature.
ah ok -- i knew i would be able to mount other partitions but i was curious about the boot partition -- i didn't know the VFS layer was handling this (multiple mounts same FS) ... maybe i thought it was a btrfs feature as i vaguely remember trying to mount an FS multiple times in the past and getting an "already mounted" type of error. this must have changed or i was doing something odd and didn't realize it ... who knows :-) thanks, i'll try it out. >> ... it would be super cool if there was a way to make updates >> persistent, eg. an overlay file that existed on the remainder of the >> original FS or something that the init process could detect (or a >> passed param). i *know* i did this with ubuntu at one time, but i >> cant remember the tool that produced said USB image ... > > I will send some changes that cow files are stored on real device instead of > tmpfs. > I expect to be accepted. Not really useful for official images, but for > custom images can get benefit from it. > > But for better support I am wating for next initscripts/mkinitcpio for clean > shutdown. nice ... i like these boot/recovery USBs but i tend to need/want custom spins of certain <insert here> and i'm too lazy to spin my own images every time i want to tweak something; i would find your additions very useful. -- C Anthony
