How to make a smaller / on Solaris 9?
in [Solaris]
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From: Andrew Gabriel on 19 Apr 2008 13:58 In article <UqnOj.6307$R_4.4911(a)newsb.telia.net>, "Thommy M." <eclipsed9876543210(a)hotmail.com> writes: > > The Solaris way to do it is / and /usr on the same partition and > eventually /var on a separate. Solaris has no such constraints. You may well choose to do that, and that's fine, but it isn't imposed by Solaris. > Just get used to it and you will have a > much nice experience with Solarais. Solaris doesn't care either way. If you make /usr a separate filesystem, you can have it mount read-only (except when installing/patching). The same goes for /opt. A number of our enterprise customers do this on their key servers as it reduces the opportunity for unauthorised changes, corruption, and the need for archiving read-only filesystems, although you might well not bother on a less important workstation. -- Andrew Gabriel [email address is not usable -- followup in the newsgroup]
From: Richard B. Gilbert on 19 Apr 2008 18:10 Oscar del Rio wrote: > Maarten Deen wrote: >> comp.unix.solaris(a)expires-on-2008-04-27.usenet.andreas-borchert.de >> (Andreas F. Borchert) wrote in >>> Why do you want to put /usr on a separate partition? >> >> Because I was raised to do so. That way the root partition will not >> fill up and cause problems in the system. > > / and /usr are supposed to be static, no reason for them to fill up. > You might be thinking about /var / and /usr are affected by patches and/or O/S upgrades! If you never patch or upgrade you can live with minimal / and /usr. Most of us, however, must sooner or later apply patches to our systems, or upgrade the O/S, or both. Backing up, repartitioning, and restoring is sufficiently painful and time consuming that it's best to allocate these partitions generous amounts of space. /var should be allocated generously for the same reason.
From: Andreas F. Borchert on 20 Apr 2008 06:19 On 2008-04-19, usenetpersongerryt(a)gmail.com wrote: > Typically under /opt (something) > man filesystem under Solaris 8 does not say this: > > " /usr/local > Not part of the SVR4-based Solaris distribution. The > /usr directory is exclusively for software bundled with > the Solaris operating system. If needed for storing > machine-local add-on software, create the directory > /opt/local and make /usr/local a symbolic link to > /opt/local. The /opt directory or filesystem is for > storing add-on software to the system." Yes, Sun said this long ago but the convention to store add-ons under /usr/local is still in use. See www.sunfreeware.com, for example, that continues to install everything below /usr/local. Andreas.
From: Andreas F. Borchert on 20 Apr 2008 06:33 On 2008-04-19, Maarten Deen <zqrra(a)kf4nyy.ay> wrote: > comp.unix.solaris(a)expires-on-2008-04-27.usenet.andreas-borchert.de > (Andreas F. Borchert) wrote in >> Why do you want to put /usr on a separate partition? > > Because I was raised to do so. That was indeed common practice in earlier times [1] when all sorts of disk filling stuff went into /usr/spool. Since this has been moved to /var, just leaving symbolic links in the /usr hierarchy, there is no longer a need to separate / from /usr. If my memory serves me correctly, the support of /var appeared already in SunOS 4.x -- even before the introduction of Solaris 2.0. Andreas. [1] I remember a nice PDP-11/23 with two 5" floppy drives, each floppy providing ca. 400kb, running UNIX edition VI. On this system, we had / on the first floppy while /usr resided on the second.
From: Richard B. Gilbert on 20 Apr 2008 08:10
Andreas F. Borchert wrote: > On 2008-04-19, usenetpersongerryt(a)gmail.com wrote: >> Typically under /opt (something) >> man filesystem under Solaris 8 does not say this: >> >> " /usr/local >> Not part of the SVR4-based Solaris distribution. The >> /usr directory is exclusively for software bundled with >> the Solaris operating system. If needed for storing >> machine-local add-on software, create the directory >> /opt/local and make /usr/local a symbolic link to >> /opt/local. The /opt directory or filesystem is for >> storing add-on software to the system." > > Yes, Sun said this long ago but the convention to store add-ons under > /usr/local is still in use. See www.sunfreeware.com, for example, that > continues to install everything below /usr/local. > > Andreas. The fact that /usr/local is in common usage does NOT make it correct. /usr belongs to the O/S and replacing it in its entirety is a legitimate operation when installing/upgrading Solaris. You MAY get away with it. I wouldn't want to bet on it! If, for some reason, you feel that you MUST have /usr/local, make it a soft link to /opt/local. |