On Tue, Jul 18, 2017, at 02:58 PM, Chris Murphy wrote: > > But if I've understood correctly, any changes to the base will be discarded > > when you update the base image. right? No; `rpm-ostree install` is persistent, and so are other changes like `rpm-ostree initramfs --enable` and so is the recently added `ex override`: https://github.com/projectatomic/rpm-ostree/pull/852 A bit more information about layering and live changes: http://www.projectatomic.io/blog/2017/06/rpm-ostree-v2017.6-released/ What Chris is talking about is `ostree admin unlock` which is *designed* to go away after reboot: https://lists.projectatomic.io/projectatomic-archives/atomic-devel/2016-March/msg00128.html > I'm not sure what the long term plan is. Right now changes to /usr > (normally read only) It's more that rpm-ostree is the *sole* tool that mutates /usr; every change is an atomic, interrupt-able transaction queued for the next boot by default (unless one invokes `ex livefs`): Even local RPM installation: # curl -L -O https://kojipkgs.fedoraproject.org//packages/cowsay/3.04/5.fc26/noarch/cowsay-3.04-5.fc26.noarch.rpm % Total % Received % Xferd Average Speed Time Time Time Current Dload Upload Total Spent Left Speed 100 46398 100 46398 0 0 30583 0 0:00:01 0:00:01 --:--:-- 30565 # rpm-ostree install ./cowsay-3.04-5.fc26.noarch.rpm ... Will download: 39 packages (13.1 MB) ... Transaction complete; bootconfig swap: yes deployment count change: 1 Added: cowsay-3.04-5.fc26.noarch groff-base-1.22.3-9.fc26.x86_64 perl-4:5.24.2-393.fc26.x86_64 perl-Carp-1.40-366.fc26.noarch ... # cowsay foo bash: cowsay: command not found # rpm-ostree ex livefs ... Preparing new rollback matching currently booted deployment Transaction complete; bootconfig swap: yes deployment count change: 1 Overlaying /usr... done ... # cowsay hi ____ < hi > ---- \ ^__^ \ (oo)\_______ (__)\ )\/\ ||----w | || || # touch /usr/bin/foo touch: cannot touch '/usr/bin/foo': Read-only file system (How did it work if /usr stays read-only the entire time? It's because rpm-ostree knows how to go "underneath" the mount, which really comes from /sysroot) Big picture, as it says on github, rpm-ostree aims to be a full hybrid image/package system, also supporting both offline updates *and* online updates if you want that - anything that is "you can't do that" is a bug. _______________________________________________ devel mailing list -- devel@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to devel-leave@xxxxxxxxxxxxxxxxxxxxxxx
