On 10/24/2011 08:27 PM, Miloslav Trmač wrote: > 2011/10/24 Michał Piotrowski<mkkp4x4@xxxxxxxxx>: >> Hi, >> >> 2011/10/24 Chris Adams<cmadams@xxxxxxxxxx>: >>>> * Discussion about https://fedoraproject.org/wiki/Features/UsrMove >>>> (t8m, 17:26:45) >>> >> >> Cool idea. Next I suggest to stop using >> /bin >> /sbin >> /lib >> /lib64 >> in F19, and not to create these links on freshly installed systems in F20. > > What about > * the FHS? > * "#! /bin/sh" in thousands of existing scripts? > > If anything, wouldn't it make more sense to move stuff in the opposite > direction, from /usr/bin to /bin ? "usr" doesn't really mean anything > - originally it was used because the filesystem format couldn't > support more than 64MB(?) in a single volume, so the system had to be > split to / and /usr. You want your OS in one directory and not split in 4 toplevel directories. > > Also, Fedora already sort-of has a system for stateless OS images - > see /etc/sysconfig/readonly-root. What will happen to it? It does not go away with this feature. > > And more importantly, what is the overall benefit to our users? I > can't find anything compelling in the "Benefit to Fedora" section (if > /usr/ can be snapshotted, why not / ?); AFAICT this requires changing > 257 packages for mostly aesthetic reasons. > Mirek It's not only an aesthetic issue. This enables possibilities, which were not doable before. - snapshot /usr (with btrfs) - hot swap the OS (/usr) with another version - mount /usr ro and keep the rootfs writeable - share the _whole_ OS with other machines -- devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxxx https://admin.fedoraproject.org/mailman/listinfo/devel
