I have been following Fedora Atomic and CoreOS for a while and now I
think I want to shift my server (as opposed to my workstation or laptop
- I have been testing SilverBlue on the laptop) to CoreOS. The server
is basically used for the systems in the Subject - I will eventually
move all the Jekyll and Rails apps (currently running as Docker
containers) to other servers but I want to test out CoreOS on my own
server first before setting up CoreOS VMs - QMail and EZMLM need to be
built from C code and this has been streamlined for me for over a decade
- but now I am thinking of creating a Podman container for Qmail and
Can people comment on any likely difficulties I might have?
PO Box 896
Cowra NSW 2794
I plan to move my bare metal server from Fedora 29 atomic to coreOS as I
understood Fedora atomic 29 is ending soon. Even if my server is quite
recent and very basic, I don't want to mess things. I have been looking
for good documentation, but can't hardly find good ones except the
official coreos-installer github README. I take the opportunity of
this move to improve my knowledge of how OSTree works as it is new and I
am far from understanding well all its features.
I have a few basic questions before I go.
1- Is it ok to scp the whole `/sysroot/ostree/deploy/fedora-atomic`
directory as a backup before I go?
2- Is installing coreOS like an upgrade (i.e I will keep my folders like
$HOME and settings in /etc) or will coreOS erase everything?
3- Am I right to think I can use OSTree functionality and install coreOS
in `/sysroot/ostree/deploy/` alongside fedora atomic? This way i could
reverse and boot to fedora atomic in case of issue. If I can do this,
what's the correct way to install coreOS alongside atomic?
Thank you for hints, good pointers and advice.