Fedora 18 existing /usr partition -- need to merge into rootfs?

[Noah Cutler]

Great, I did just that, setup /usr with the installer -- basically stumbled
upon a working solution, looks like things would have broken pre-F18...

Nice systemd-analyze results, incredible. What led me to your guide was
NetworkManager's wait-online-service, which alone added 30 seconds to boot
time! Down to 6 seconds now, and should get under 4 seconds with "sudo
dracut -f -H -o plymouth" test that I'll run later today.


On Tue, Apr 2, 2013 at 12:34 PM, Harald Hoyer <harald.hoyer at gmail.com>wrote:

> Am 02.04.2013 11:50, schrieb Noah Cutler:
> > Harald
> >
> > Ok, so then separate /usr is apparently not broken, or for now there's a
> > fallback mechanism (as of F18) to make things work in the event that
> /usr is on
> > its own partition.
> >
> > Either way my setup is working (appears to), but it would be nice to
> really know
> > if separate usr is causing any issues at all, or if the intramfs
> definitely has
> > my back with /usr entry in /etc/fstab (i.e. no need for dracut workaround
> > suggested elsewhere in this thread).
>
> The initramfs has your back covered. The only problem arises, when the
> initramfs
> has not enough information or tools or kernel drivers to mount /usr or to
> assemble the device it lives on. This case should not be possible, if you
> set up
> /usr with the installer. If you encounter such a problem, then please file
> a
> bug, because dracut (the initramfs framework) should be able to cope with
> all
> supported installation locations.
>
> >
> > Thanks for your awesome optimization guide, BTW:
> >
> http://www.harald-hoyer.de/personal/blog/fedora-17-boot-optimization-from-15-to-3-second
> >
> > sub 4 second boot times are possible ;-)
>
> you are welcome :)
>
> $ systemd-analyze
> Startup finished in 6s 730ms 730us (firmware) + 35ms 148us (loader) + 665ms
> 330us (kernel) + 428ms 948us (initrd) + 1s 598ms 595us (userspace) = 9s
> 458ms 751us
>
> $ cat /etc/fedora-release
> Fedora release 19 (Schrödinger’s Cat)
>
>
> .... I need a faster BIOS :)
>
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