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gefs(8): document creating /n/other/usr/$user/tmp when adding users

when adding a user, you probably want to put their /tmp on an unsnapshotted
data set; put this in the manpage by default

--- a/sys/man/8/gefs

+++ b/sys/man/8/gefs

@@ -1,3 +1,4 @@

+	logprog chgrp -u $user /n/newfs.other/$user^('' tmp)

 .TH GEFS 8

 .SH NAME

 gefs \- file server maintenance

@@ -316,12 +317,12 @@

 To create a new user:

 .IP

 .EX

-# mount the adm namespace (as a user in adm group):

+# Mount the adm namespace (as a user in adm group):

 # and add the user to the user file

 % mount /srv/gefs /adm adm

 % sam /adm/users

-# add the users, and reload the user table.

+# From the console, reload the user table.

 # if there is an error in the user file,

 # an error will be printed on the console.

 % con -C /srv/gefs.cmd

@@ -330,12 +331,20 @@

 gefs# ^\

 >>> q

-# create the user home directory

-# and tmp snapshot

+# Mount the file system in permissive mode to allow

+# changing file ownership, then create the user dir

 % mount /srv/gefs /n/u %main

 % mkdir /n/u/usr/$newuser

 % chgrp -u $newuser /n/u/usr/$newuser

 % chgrp $newuser /n/u/usr/$newuser

+

+# Ceate a tmp dir in the unsnapshotted 'other'

+# dataset. If it's present, the default namespace

+# will use it.

+% mount /srv/gefs /n/o %other

+% mkdir -p /n/o/usr/$newuser/tmp

+% chgrp $newuser /n/o/usr/$newuser^('' /tmp)

+% chmod 700 $newuser/n/o/usr/$newuser^('' /tmp)

 .EE

 .SH BUGS

 .PP

-- 

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