Date: Wed, 5 Mar 2014 11:43:25 -0800 From: aurfalien <aurfalien@gmail.com> To: dteske@FreeBSD.org Cc: FreeBSD Mailing List <freebsd-questions@freebsd.org> Subject: Re: mdconfig via rc.conf Message-ID: <6292A1D0-80B0-4553-9FC9-CE2BC61EC92C@gmail.com> In-Reply-To: <18af01cf38a4$b278b1c0$176a1540$@FreeBSD.org> References: <A2D8BD58-D9D8-4E16-B84D-25D37E195ADE@gmail.com> <18af01cf38a4$b278b1c0$176a1540$@FreeBSD.org>
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On Mar 5, 2014, at 10:56 AM, dteske@FreeBSD.org wrote: > > >> -----Original Message----- >> From: aurfalien [mailto:aurfalien@gmail.com] >> Sent: Tuesday, March 4, 2014 2:14 PM >> To: FreeBSD Mailing List >> Subject: mdconfig via rc.conf >> >> Hi, >> >> Are there any other parameters I would need to setup a ram disk at boot > time? >> >> I have this in my rc.conf; >> >> mdconfig_md100="-t malloc -s 12G" >> >> I've opted not to mount or format it for now. >> >> But upon boot, I do not see the md100 device. >> >> Is there anything I need in rc.conf to enable this? >> >> Thanks in advance, >> >> - aurf >> > [Devin Teske] > > Sorry for late reply. But here's what you want... > > # In /etc/rc.conf > mdconfig_md0="-t malloc -s 12G" > > # In /etc/fstab > /dev/md0 /mymountpoint ufs rw,noatime 0 0 > > You see... /etc/rc.d/mdconfig will perform "mount -d /dev/md0" to see > if there is a mountpoint configured for md0 in /etc/fstab. > > If "mount -d /dev/md0" reports that there is no entry for md0, then the > /etc/rc.d/mdconfig script will not mount your device. > > Also, as others have mentioned, you can not (currently) arbitrarily have > gaps in the numbering system. You have to start with md0 and then use > md1, md2, ad nauseum. The script /etc/rc.d/mdconfig currently stops at > the first undefined value. So in the case of not setting md0 but only a > single md100, nothing will be done (0 being undefined terminates the > loop). > -- > Devin So if I do; mdconfig -a -t swap -s 12G I get /dev/md0 no issues. I chose swap rather then malloc due to RWs suggestion previously. Keep in mind I don’t wish to mount it just yet. However if I put the value in rc.conf; mdconfig_md0=“-a -t swap -s 12G” I do not see an /dev/md device - aurf "Janitorial Services"
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