On 10/24/2011 08:05 PM, Chris Adams wrote:
> #fedora-meeting: FESCO (2011-10-24)
> * Discussion about https://fedoraproject.org/wiki/Features/UsrMove
> (t8m, 17:26:45)
This sounds interesting (speaking as an admin that typically sets up
servers with separate, ro-mounted, /usr). I'm not sure about moving
_everything_ to /usr, but I guess that's one approach. Other Unix
systems I've used have had /bin as a symlink to /usr/bin, but not /sbin
(still kept core system maintenance tools in /sbin on root fs). I'm
also not sold on eliminating sbin directories (I like having "system
admin" type stuff kept separate), and I don't see why that needs to be
rolled into the same feature (especially as just a footnote, not a
What does it gain to have /sbin and /usr/sbin? Security through
obscurity? We already have it in $PATH for the normal user.
One big question though: can RPM handle such a change? IIRC, when the
switch from /etc/rc.d/init.d to /etc/init.d was made, initially
everything was going to be moved and the old paths symlinked for a few
releases. However, there was some problem with RPM that couldn't handle
switching an existing directory to a symlink, so that change was reduced
to introducing /etc/init.d as a symlink. How will upgrades be handled
if this feature goes through?
The old symlinks will likely stay forever for scripting compat issues
and linux loader ABI.
The transition from directory to symlink is to be discussed though.
It can be done from the initramfs, or it can be done from anaconda, or
it can be done from a %post script with lua in the "filesystem" rpm.