Ahh put they do for 10.20 It's a superceeded patch under
but it only has the umount static binary in it and no dependencies.
Patch Name: PHCO_9543
Patch Description: s700_800 10.20 umount(1M) to unmount a Stale NFS filesystem
Creation Date: 96/12/12
Post Date: 96/12/17
Hardware Platforms - OS Releases:
Automatic Reboot?: No
Status: General Superseded
Path Name: /hp-ux_patches/s700_800/10.X/PHCO_9543
If a file system is mounted on system over NFS, and the
file system goes down, doing a bdf will report and error
of "Stale NFS File handler". The current NFS umount
will not allow this file system to be unmounted, even
if the file system comes back on the original
The problem is caused by a bug in /sbin/fs/nfs/umount. If
a file system is mounted on over NFS, and the file system
goes away for some reason, the file system will be reported
as Stale, and there is no way to get rid of this without
To recreate the problem, make a directory on system A and
export it. On system B (must be 10.20), mount the file
system. Remove the directory on system A. Do a bdf on
system B, and it should report "Stale NFS file handler" for
the mounted file system. Doing a umount of the file system
also reports this error, and the umount is not done. Even
if the directory is recreated on system A, and exported, it
cannot be umounted. The system would have to be rebooted.
$Revision: 78.6 $
Oct 2 1996 10:35:25
PATCH_10_20: /opt/langtools/lib/crt0.o umount.o 96/1
2453477347 200704 /sbin/fs/nfs/umount
Patch Conflicts: None
Patch Dependencies: None
Hardware Dependencies: None
Other Dependencies: None
Equivalent Patches: None
Patch Package Size: 250 Kbytes
Please review all instructions and the Hewlett-Packard
SupportLine User Guide or your Hewlett-Packard support terms
and conditions for precautions, scope of license,
restrictions, and, limitation of liability and warranties,
before installing this patch.
1. Back up your system before installing a patch.
2. Login as root.
3. Copy the patch to the /tmp directory.
4. Move to the /tmp directory and unshar the patch:
5a. For a standalone system, run swinstall to install the
swinstall -x autoreboot=true -x match_target=true \
5b. For a homogeneous NFS Diskless cluster run swcluster on the
server to install the patch on the server and the clients:
swcluster -i -b
This will invoke swcluster in the interactive mode and
force all clients to be shut down.
WARNING: All cluster clients must be shut down prior to the
patch installation. Installing the patch while the
clients are booted is unsupported and can lead to
The swcluster command will invoke an swinstall session in which
you must specify:
alternate root path - default is /export/shared_root/OS_700
source depot path - /tmp/PHCO_9543.depot
To complete the installation, select the patch by choosing
"Actions -> Match What Target Has" and then "Actions -> Install"
from the Menubar.
5c. For a heterogeneous NFS Diskless cluster:
- run swinstall on the server as in step 5a to install
the patch on the cluster server.
- run swcluster on the server as in step 5b to install
the patch on the cluster clients.
By default swinstall will archive the original software in
/var/adm/sw/patch/PHCO_9543. If you do not wish to retain a
copy of the original software, you can create an empty file
Warning: If this file exists when a patch is installed, the
patch cannot be deinstalled. Please be careful
when using this feature.
It is recommended that you move the PHCO_9543.text file to
/var/adm/sw/patch for future reference.
To put this patch on a magnetic tape and install from the
tape drive, use the command:
dd if=/tmp/PHCO_9543.depot of=/dev/rmt/0m bs=2k
Special Installation Instructions: None
> Subject: Re: Stale NFS File Handles on HPUX 10.20
> Newsgroups: comp.sys.hp.hpux
> View this article only
> Date: 2001-04-05 15:02:28 PST
> You will be able to unmount the stale nfs file system only prior doing a
> bdf...after doing a bdf, your only recourse is to reboot the
> device to clear the stale nfs file handle. I don't think HP has a fix for
> Alan D Johnson wrote in message <3ACC877C.48318...@ulster.net>...
> >Just umount them from the local machine. If that doesnt work then remove
> >the entries from /etc/fstab
> >Kote wrote:
> >> A number of NFS-mounted file systems have now become unavailable on a
> >> server, as they have been removed on the remote host server-which is all OK
> >> :)
> >> However, on the local server, when I do a "bdf", I get the message :
> >> Stale NFS file handle
> >> How do I get rid of these ? Coming from a Sun background, I know that I
> >> could stop and restart the nfs.client and that this would usually solve it.
> >> However, this does not seem to work on HPUX .
> >> Any ideas, anyone ?
> >> Thanks,
> >> Raymond