Three years ago I started building a Linux distribution of my own. Start points were Puppy Linux and unionfs.
I tried hard but never managed to successfully *move* files from the RAM-Disk-layer to the On-Disk-layer. (I did not actually move them but copy them and delete the source files afterwards.) I then switched to using aufs. This worked a way better, but using "udba=inotify" is a *must*. Junjiro added a patch that allowed for changing file ownership which originally did not work correctly (thanks again!) and I happily used aufs for more than two years. An important caveat I found was that one *should not* replace a directory by a file or vice versa! Since kernel 2.6.32 I now use btrfs that's astonishingly stable by now and which performs great on flash-memory-pen-drives. I continue to use aufs (in combination with squashfs) for storing incremental backups. Greetings, Michael ------------------------------------------------------------------------------ Download Intel® Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev
