After successfully installing Fedora Core 15 on my home box I am moving all my stuff from Gentoo to Fedora. I’m still questioning my move, but lately I have less and less time to dedicate to proper maintenance of Gentoo, not to mention that at work I run RedHat servers so I’m much more familiar with RedHat insides than Gentoo’s at the moment (wasn’t like that a year or two ago). I still think Gentoo is a brilliant distro and taught me a lot about inner workings of things; I didn’t want to go Ubuntu (I really does piss me off how it gets in my way all the time) so Fedora was more like a happy medium between Gentoo and Ubuntu and it would provide some learning grounds for my office use of RedHat. Prior to my home move I moved my office machine with no problems whatsoever, but then my office setup was not as elaborate as the one at home. I have already tried migrating to Fedora at home once and failed thanks to LiveCD’s. This time I’ve got a system that works and doesn’t show too many signs of instability. Another thing is to keep Gentoo around in a VM just in case I have to fall back to it for some apps/functions.
Plan of actions:
- add/migrate all filesystems from Gentoo to F15
- make F15 boot from a sandwich I ran in Gentoo: RAW->MD-(raid1)->LVM
- enable SELinux
- depending on success: migrate Gentoo into a VM
Couple of interesting hurdles/glitches:
- Lightspark is way more unstable in fedora vs Gentoo
- my NVidia sound keep throwing some odd messages in F15 (not in Gentoo)
- I have to deal with sytemd startup (quite a bit of learning here)
- I have to deal with SELinux
- NFS issues
- ReiserFS issues
So here’s the story so far…
Installing flash I ended up with 32bit Adobe crap bolted via nsplugin-wrapper (lightspark turned out to be quite unstable in Fedora). But at least it works…
To know where my problems start you’d have to know where am I coming from. So on my Gentoo box I’ve been using ReiserFS for quite some time now due to effectiveness of it on systems with lots of small files. I also have a NAS where most of my stuff lives (or is synced to) mounted over NFS.
After installing F15 on a fresh new partition[s] and making sure install is functional it was the time for migration of the systems. Couple of problems I ran into on the first go:
- SELinux wouldn’t let me use ReiserFS partitions as they don’t support Extended Attributes
- As soon as I plug-in Gentoo entries into /etc/fstab all goes to hell and systemd rebels against me
First one was easy – SElinux operates in “permissive” mode now and I slowly collect it’s reports and combine fixes either into a policy or fix contexts etc. on-disk. Very tedious task. Couple of really useful tips:
from Dan Walsh:
If he had the te files from the previous run, he could use audit2allow to add rules to the te file.
# audit2allow >> myexim.te << /var/log/audit/audit.log,
I haven’t realized that every time I ran “audit2allow -M” it was leaving .te file for me in root’s home directory. So instead of generating gazillion tiny policies I ended up buffing up one generated by audit2allow further and further. Cuts down on clutter and keeps things neat.
Fedora SELinux pages have quite a bit of info too and were quite helpful in understanding what I’m dealing with so far.
My NFS shares from NAS mounted ok as root, but when I got to user access I discovered that I can’t view anything on NAS. Which naturally pissed me off. Then it dawned on me that NAS has groups out-of-sync with my workstation so I have to create nas-like group on my machine and get myself into it. So after simply adding;
to /etc/group and re-logging in things started to look bit better.
Next punch was delivered by systemd – it clearly gets ahead of itself and tries to mount MD RAID/LVM volumes prior to their initialization. So my first attempt was to get mounts into systemd-like form by crafting things like that:
$ cat /etc/systemd/system/mnt-gentoo.mount
# This file is part of systemd.
# systemd is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
which looks and feels as an abomination to me. So it took me some time and effort and my last (but not least hackish) attempt looks like this: we initialize all MD/LVM devices from boot string via dracut – truly a strike of evil genius:
title Fedora (22.214.171.124-0.fc15.x86_64)
kernel /vmlinuz-126.96.36.199-0.fc15.x86_64 ro root=/dev/mapper/vg_gamer-rootfs rd_luks=0 rd.dm=0 LANG=en_US.UTF-8 SYSFONT=latarcyrheb-sun16 KEYTABLE=us nodmraid nouveau.modeset=0 rdblacklist=nouveau rd.md.uuid=61111111:11111111:11111111:dd6f447f rd.md.uuid=21111111:11111111:11111111:3ac2a021 rd.md.uuid=f1111111:11111111:11111111:96e591a2 rd.md.uuid=f1111111:11111111:11111111:bb65be89 rd.lvm.vg=rvg rd.lvm.vg=vg_gamer rd.lvm.vg=backup
If that doesn’t look evil – I don’t know what does…