Il giovedì 21 agosto 2008 21:12:25 Andreas Bombe ha scritto: > > > It is used in the aufs after all, so it doesn't work. My fix for that > > > one was not triggering the remount ro attempt by commenting the > > > try_snap calls in scripts/live since I do not need snapshot files here. > > > > I need to think on how to handle that case. > > I haven't yet followed the flow in the live scripts, but my idea would > be to note the existence of live-rw without immediately using it. Make > it part of the root union only at the end.
I was imaging the opposite, taking note of used live-rw in scanning for other types of persistences or snapshots, but your idea is good, although for snapshot types the live-rw should be already mounted before copying data for sure. > > > Once I get it to boot without intervention, other issues crop up. For > > > one, /dev is in /live/cow and therefore saved unnecessarily. Also, > > > /etc/hosts and /etc/fstab appear to be appended with initial > > > configuration unconditionally, meaning that they grow longer with every > > > boot. In the case of fstab it leads to tmpfs being mounted on /tmp > > > multiple times. > > > > That is true, both exclude pattern and avoid unnecessaries appends needs > > to be applied. > > This too might be fixed with a late mount of live-rw. First a tmpfs > would be made part of the root union for writability, all the > initialization happens (and is thus not persistent) and finally live-rw > is added. The tmpfs would stay in the middle between live-rw and the > read only image. This is another great idea, anyone could imagine why this could lead to problems? In fact doing that only changes AFTER the live-initramfs job will be reminded and made persistent. I must think about that some more time. > It would have the benefit of avoiding error prone special casing. > However, I haven't examined the scripts enough to see if this is > feasible. A test suite is in the TODO list from a long time, a way to test a lot of use cases (network, usb, cd boots in presence of different persistent/snapshot modes from different types of filesytems...) in batch mode would be great to have. -- ESC:wq _______________________________________________ debian-live-devel mailing list [email protected] http://lists.alioth.debian.org/mailman/listinfo/debian-live-devel
