Date: Sun, 25 Apr 2010 19:55:03 +0100 From: Bruce Cran <bruce@cran.org.uk> To: freebsd-current@freebsd.org Cc: Alex Keda <admin@lissyara.su>, Jeff Roberson <jroberson@jroberson.net> Subject: Re: HEADS UP: SUJ Going in to head today Message-ID: <201004251955.03492.bruce@cran.org.uk> In-Reply-To: <622DDEDF-0320-49DA-8037-CA8C1F682CC1@samsco.org> References: <4BD35437.2060208@lissyara.su> <alpine.BSF.2.00.1004241656270.1398@desktop> <622DDEDF-0320-49DA-8037-CA8C1F682CC1@samsco.org>
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On Sunday 25 April 2010 19:47:00 Scott Long wrote: > On Apr 24, 2010, at 8:57 PM, Jeff Roberson wrote: > > On Sun, 25 Apr 2010, Alex Keda wrote: > >> try in single user mode: > >> > >> tunefs -j enable / > >> tunefs: Insuffient free space for the journal > >> tunefs: soft updates journaling can not be enabled > >> > >> tunefs -j enable /dev/ad0s2a > >> tunefs: Insuffient free space for the journal > >> tunefs: soft updates journaling can not be enabled > >> tunefs: /dev/ad0s2a: failed to write superblock > > > > There is a bug that prevents enabling journaling on a mounted filesystem. > > So for now you can't enable it on /. I see that you have a large / > > volume but in general I would also suggest people not enable suj on / > > anyway as it's typically not very large. I only run it on my /usr and > > /home filesystems. > > > > I will send a mail out when I figure out why tunefs can't enable suj on / > > while it is mounted read-only. > > This would preclude enabling journaling on / on an existing system, but I > would think that you could enable it on / on a system that is being > installed, since (at least in theory) the target / filesystem won't be the > actual root of the system, and therefore can be unmounted at will. It worked here - it's shown as enabled after I booted in single-user mode and enabled it yesterday: core# dumpfs / | grep -i journal flags soft-updates+journal -- Bruce Cran
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