On Wed, Jul 11, 2012 at 01:40:49AM +0900, Ryusuke Konishi wrote: > I don't know, that is not a matter of NILFS. > NILFS does not replace the root device with /dev/root. > > NILFS library just tries to find a mount instance by comparing > canonical path names of the given device node and that in > /proc/mounts. Symbolic links are followed in this canonicalization. That's why I asked. I suppose it is checking if the given partition is mounted, right? > The difference was simply that /dev/disk/by-uuid/uuid was a proper > symlink to the real device and /dev/root was not in your one machine > for some reason. I checked udev in the first place. udev-182-r3 (from Gentoo portage tree) with udev-init-scripts-10 creates /dev/root. udev-186 with udev-init-scripts-12 doesn't. There are some bugs about missing /dev/root on Gentoo's Bugzilla (grub2 related). > > Also, maybe there's a reason to remove /dev/root? I will try later with > > some older udev to see if it is created. > > In my nilfs-rooted machine, the root device node appears as /dev/sda? > in /proc/mounts, not /dev/root. I don't know what makes this > difference. All (at least those checked) my Gentoo Linux boxes have /dev/root in /proc/mounts, but I don't know if this is Gentoo specific. I think some mentioned above bug pointed to similar "missing /dev/root" bug in Debian. Piotr Szymaniak. -- Mają tam rożki, barwione wody sodowe, batoniki, posypki, orzeszki, piwo słodowe, koktajle i taki kretyński, pańciowaty, kurewski dzwonek, który robi ding-dong albo bing-bang, kiedy ktoś wchodzi. -- Peter Hedges, "What's Eating Gilbert Grape"
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