Folks,
Yesterday I posted
> I just did an installupdate on a Digital Unix 4.0 system (to 4.0b).
>
> # shutdown now
> # /sbin/bcheckrc
> # /sbin/installupdate -i /dev/rz4c
and the installupdate hung "checking the current state of the system" after
emitting
> NFS2 server cars1 not responding still trying
Ian Mortimer <mortimer_at_physics.uq.edu.au> noted
> As far as I know these NFS hangs never time out and can't be killed
> except by halting the machine.
and indeed ^C did not abort the installupdate.
Bob Fedorchak <bf_at_unx.dec.com> diagnosed the problem
> The installupdate script is concerned with 3 file systems: /,
> /usr, /var. As part of its preparation work it determines if there
> will be enough disk space for the new version of the operating system,
> so it goes out and looks at these three file systems (or two file
> systems if /var was installed under /usr). The only thing I can think
> of that would have caused this problem is that one of the files or
> directories under /, /usr, or /var has been made a symbolic link to
> a file/directory on cars1. This would cause the update to attempt to
> access this file/directory on cars1, resulting in the NFS error. The
> NFS error is occuring because the automount daemon was specifically
> shutdown by the update process.
And indeed /usr/local had symbolic links to automounted directories on cars1.
The solution came from Gary Jenkins <gcjenkins_at_escocorp.com>
> When you do the installupdate make sure that you have halted the system
> and BOOTED to single-user
> NOT done an init S. While they essentially put you in the same state,
> the network drivers are still active
> on the card, responding to packets that they can't do anything with.
Bingo!
>>>boot -flag s
worked fine. I couldn't find this distinction in the Installation Guide or
Release Notes.
--Harvey
----
Harvey Rarback phone: (630)252-0427
CARS at APS fax: (630)252-0443
Building 434-A4 home phone: (708)957-4055
Argonne National Lab Internet: rarback_at_cars3.uchicago.edu
9700 South Cass Ave ESnet: 47583::RARBACK
Argonne, IL 60439 Web:
http://corvette.cars.aps.anl.gov/~rarback
"If it's simply physics -- it's very sad." Woody Allen
Received on Wed Apr 02 1997 - 00:17:35 NZST