Date: Wed, 03 Dec 2014 18:24:19 -0500 From: Andre Goree <andre@drenet.net> To: FreeBSD Questions <freebsd-questions@freebsd.org> Subject: Re: Issue with swap file Message-ID: <2a3b7da1d03fd215ba1792e6617cfdb7@drenet.net> In-Reply-To: <44fvcwgzaw.fsf@lowell-desk.lan> References: <d37ad41e7e524b0547545ac5ae3c329a@drenet.net> <44fvcwgzaw.fsf@lowell-desk.lan>
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On 12/03/2014 5:10 pm, Lowell Gilbert wrote: > Andre Goree <andre@drenet.net> writes: > >> Several months ago, I followed the procedure here[1] for creating a >> swap file. This worked great for a long time, up until my last reboot >> which coincided with an update to 10.1. >> >> agoree@fbsd10-atl ~ % grep swap /etc/fstab >> md99 none swap sw,file=/usr/swap 0 0 >> agoree@fbsd10-atl ~ % sudo swapon -a >> swapon: mdconfig (attach) error: md99 on file=/usr/swap >> >> I've also tried zero-writing the file again, to no avail. Any ideas? >> >> [1] https://www.freebsd.org/doc/handbook/adding-swap-space.html > > Strange, I haven't run into any problems. And annoying that the error > message is so unhelpful. When that error message gets printed, swapon > has tried to run mdconfig and gotten an error back, but has no idea > what > the problem was. At that point, it has already checked that the md > device is available, which eliminates my best guess at a diagnosis. > > The way you can get more information is by running the mdconfig command > by hand, just as swapon would have, and see what *it* reports to you. > mdconfig -a -t vnode -n -f /usr/swap > > Very likely, it will tell you exactly what to fix. I tried creating a new one (hence the '/usr/swap0' vs. '/usr/swap' in the output below) and still got the same error. Here's the [disheartening] output from the command you gave: agoree@fbsd10-atl ~ % sudo swapon -a swapon: mdconfig (attach) error: md99 on file=/usr/swap0 agoree@fbsd10-atl ~ % sudo mdconfig -a -t vnode -n -f /usr/swap0 0 -- Andre Goree -=-=-=-=-=- Email - andre at drenet.net Website - http://www.drenet.net PGP key - http://www.drenet.net/pubkey.txt -=-=-=-=-=-
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