Yes, / is read-only and /var is rw. Here is my fstab:
192.168.0.200:/home/diskless_ro / nfs ro 0 0
192.168.0.200:/home/diskless_rw/var /var nfs rw 0 0
192.168.0.200:/home/diskless_rw/tmp /tmp nfs rw 0 0
192.168.0.200:/usr /usr nfs rw 0 0
proc /proc procfs rw 0 0
I will try to get more of the terminal input tomorrow. Here is the last few
lines
Trying to mount root from nfs:192.168.0.200:/home/diskless_ro
NFS ROOT: 192.168.0.200:/home/diskless_ro
Interface fxp0 IP-Address 192.168.0.196 Broadcast 192.168.0.255
Date
Also, I will try setting varmfs and tmpmfs to "YES" tomorrow to see if that
works.
you should (and have?) mount / read-only, then mount /var either as a mfs or
nfs mounted read-write. If there is no writable /var, dhclient cannot store
the lease - this is true both in 5.x and 6.x.
If you look through /etc/rc.d/var (there is an equivalent one for tmp) you
will see it has three modes: yes, no and auto. If set to yes, a mfs /var
partition is created, if auto, the startup scripts will check if there is a
writable /var, if not, then an mfs /var is created - this is default.
There are good reasons for using mfs for /tmp and /var, as well as for not:
by using mfs you have no cleanup, and no personal data is disclosed if
logout causes a reboot every time. However, in particular for /var there are
data that is usefull to keep: IIRC latex stores generated fonts there.
If you have an mfs /var then the problem mentioned should not cause
nfs-mounts to be lost because the lease is stored in the mfs. But if /var is
an nfs mount then you may have a problem.
I sent a problem report on this, it was closed because I didn't get back on
it. Reason is that I haven't had time to set up diskless FBSD6 environment.
So, I'm not sure, however, if you include output from the terminal (yes I
know it's tideus to copy), I can see if I can interpret it.
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