On Sep 9, 9:09am, Butch Deal NRL wrote:
> Subject: mounting /opt and /usr readonly
> can /opt and/or /usr be mounted read only on solaris 2.3 or any solaris
> 2.x for that matter. Also has anyone used the nfs cache capabilities on
> solaris2.3 I plan to us the cacheing but was wondering if any one has
> had any problems with it.
>
>-- End of excerpt from Butch Deal NRL
Mostly people wanted to know about solaris 2.3 I am running 2.3 beta 1.3.
I whant to mount /usr and /opt read only as read only nfs mounts are more
efficient. Also for cacheing readonly is much better.
The solution seams to be that yes they can be mounted read only. I am
currently mounting /opt read only with automount and cacheing localy to disk.
I found that you can not cache /usr but on the same machine I am mounting /usr
read only. This machine has been up now for about 24 hours with no problems.
This machine is a sparc 1 with 16 Meg meorry:
forrestal% uname -a
SunOS forrestal 5.3 beta1.3 sun4c sparc
forrestal% df -k
Filesystem kbytes used avail capacity Mounted on
/dev/dsk/c0t3d0s0 19107 12273 4924 71% /
enterprise:/export/enterprise1/SunOS_5.3/usr
1188910 638921 431098 60% /usr
/proc 0 0 0 0% /proc
fd 0 0 0 0% /dev/fd
swap 32936 8 32928 0% /tmp
/dev/dsk/c0t3d0s5 9391 452 8009 5% /var
/dev/dsk/c0t3d0s3 19107 10340 6857 60% /cache
/dev/dsk/c0t3d0s4 9391 9 8452 0% /var/cache
enterprise:/usr/adm_util
354375 152340 166598 48% /usr/adm_util
/cache/cache/.cfs_mnt_points/enterprise:_export_enterprise1_SunOS_5.3_openwin
1188910 638921 431098 60% /usr/openwin
enterprise:/export/enterprise2/deal
1952573 1610960 146356 92% /home/deal
enterprise:/export/enterprise1/local_sun4
1188910 638921 431098 60% /usr/local
/cache/cache/.cfs_mnt_points/enterprise:_export_enterprise1_SunOS_5.3_opt
1188910 638921 431098 60% /opt
the last four are automounted with /usr/openwin and /opt cached
/usr/openwin , /opt , /usr/local , and /usr are mounted read only.
On Sep 9, 3:18pm, Dan Stromberg - OAC-DCS wrote:
> Subject: Re: mounting /opt and /usr readonly
>
> Are you a running beta 2.3, or a standard release thereof?
>
> BTW, I believe given that solaris 2.x can deal with diskless
> configurations, and it is very typical to use r/o /usr in such
> situations, that /usr -can- be set up to be r/o. Be careful that you
> don't have /var on /usr, though. Some recent suns I've seen do, some
> don't. I believe this was the reason vendors (sun?) started pushing
> toward /var and /usr.
>
> As to /opt... I have yet to run into anything in /opt that needed to
> be r/w, but.... Well, we're mounting it r/o on some machines here,
> for compilers at least.
>
> Dan Stromberg - OAC/DCS strombrg@uci.edu
>-- End of excerpt from Dan Stromberg - OAC-DCS
On Sep 9, 6:51pm, jimc@jts.com wrote:
> Subject: Re: mounting /opt and /usr readonly
> /usr:
> Sure, I suppose you could, but you may find that patching will become a pain.
>
> /opt:
> As long as you're not planning to add/remove any packages, it ought not
> to be a problem.
>
> Is there a security issue at stake?
> --
> Jim Carroll | JTS Computer Systems Ltd. | #include <std_disclaimer.h>
> jimc@jts.com | Toronto, Ontario |
>-- End of excerpt from jimc@jts.com
On Sep 9, 5:23pm, Barry Levin wrote:
> Subject: Is Solaris 2.3 out?
>
> Maybe you ment Solaris 2.2. I thought that the Sun "train" doesn't leave
> the Sun "train station" until October 1993 with Solaris 2.3
>
> :-) levin@gdwest.gd.com
>-- End of excerpt from Barry Levin
On Sep 10, 11:57am, Kevin Sheehan {Consulting Poster Child} wrote:
> Subject: Re: mounting /opt and /usr readonly
>
> /opt certainly can (if you are not installing things) and I suspect that
> /usr could be too, but I haven't tried it.
>
> What do you mean by nfs caching on 2.3?? NFS may not cache, but SunOS
> has always cached certain things, like file blocks and some entries...
>
> l & h,
> kev
>-- End of excerpt from Kevin Sheehan {Consulting Poster Child}
On Sep 10, 9:23am, Rob Lyle Wizard of Ozje wrote:
> Subject: Re: mounting /opt and /usr readonly
>
> Both. I have no problems there at all. If you mount /opt ro then the client
> doesn't report that the software is installed (pkginfo), but you can run it
> just the same. It states this in the Answerbook for 2.2!!!
>
> --Rob.
>
> --
> Robert P K Lyle E-mail: rlyle@nl.oracle.com
> UNIX System Manager Voice: +31 3406 94211
> ORACLE Nederland FAX: +31 3406 65603
> Rijnzathe 6,
> 3454 PV De Meern Private: +31 10 4809140
>-- End of excerpt from Rob Lyle Wizard of Ozje
On Sep 10, 9:27am, ### SUPERVISOR ### wrote:
> Subject: Re: mounting /opt and /usr readonly
>
> Hello Butch
>
> Sorry my question .... BUT You sad Solaris2.3 for me this means you have 2.3 !?
>
> The information we got in Switzerland: not available before November !
>
> Do you have any other informations in your country. As you might know 2.2 is
> so buggy .... we wont (can't) use it at all.
>
> It will be nice if you find some time to answer
>
> Greetings
>
> Christoph
> --
> ,,,
> (. .)
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> | _______ / / / / | | e-mail: roc@ewi.ch |
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> | |
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>-- End of excerpt from ### SUPERVISOR ###
-- #include <std/*> The Butcher Butch Deal deal@ait.nrl.navy.mil --------------------------------------------------------------------------------
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