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From: stpeters@dawn.steinmetz
Newsgroups: comp.unix.wizards,alt.flame
Subject: Re: disk, ethernet utils should be on root fs
Message-ID: <7523@steinmetz.steinmetz.UUCP>
Date: Mon, 5-Oct-87 12:23:38 EDT
Article-I.D.: steinmet.7523
Posted: Mon Oct  5 12:23:38 1987
Date-Received: Thu, 8-Oct-87 05:05:27 EDT
References: <4114@cit-vax.Caltech.Edu>
Sender: root@steinmetz.steinmetz.UUCP
Reply-To: dawn!stpeters@steinmetz.UUCP ()
Followup-To: alt.flame
Organization: General Electric CRD, Schenectady, NY
Lines: 41
Keywords: sun diskless bootstrap debug tools
Summary: They can be
Xref: mnetor comp.unix.wizards:4699 alt.flame:193

> This is the second time in a month that having /usr/ucb/netstat
> on the root filesystem could have saved me several hours of
> head-scratching.  It's hard to figure out why an NFS-mount of
> /usr fails when all the necessary tools are on /usr!

One would think that after the first time, you'd have sense to copy
netstat into the client's root partition *on the server*. :-)

There's also nothing preventing you from putting /usr in each client's
root partition, if that's what you really want and is more important
than saving disk space.

> With Sun having moved a bunch of stuff to /usr/etc, more utilities
> come to mind, such as dumpfs and tunefs (tunefs only works with the
> filesystem dismounted, how is one going to use /usr/etc/tunefs upon
> /usr, if /usr is dismounted?)

/usr/etc isn't actually *in* the /usr partition, it's a mount point
for the server's /usr.MC680[12]0/etc, which should be a hint about why
Sun moved them.

Mount /usr/etc on a mount point not in /usr (/mnt?) and umount /usr.
Or again, if you have lots of disk space, put copies in every client's
root partition.

> My server developed some flakey blocks on /usr, and I wanted to find
> out which files contained them.  Guess where icheck and ncheck are?
> Right, /usr/etc.

Moving from client complaints to server complaints, you can move
/usr/etc to a temporary mount point on the server too.

But if you couldn't figure that out, maybe you shouldn't play with
things like icheck and ncheck. :-)

Etc., etc., ...

Dick St.Peters                        
GE Corporate R&D, Schenectady, NY
stpeters@ge-crd.arpa              
uunet!steinmetz!stpeters