From: Bugs (bb1@humboldt.edu)
Date: Wed Jun 08 2005 - 10:32:34 EDT
I have been requested to make myself more clear, and
give my problem rather than ask for a solution.
I appologize for my vagueness.
We just migrated a server from an alpha 2100 (hostA)
to an ES40 (hostB).
There were 4 filesystems on hostA that were placed as
subdirectories on hostB:
hostA:
df
/dev/disk/dsk1g 5878109 2759618 2824585 50% /u
/dev/disk/dsk4g 12183434 7872959 3701303 69% /bhome1
/dev/disk/dsk8g 12183434 3461371 7503719 32% /ohome1
/dev/disk/dsk9g 8057740 4838990 2815863 64% /tech
hostB:
df
laurel#home 54730624 19492349 35113288 36% /home
cd /home
ls -l
drwxr-xr-x 8 root system 8192 Sep 8 2004 bhome1/
drwxr-xr-x 6 root system 8192 Dec 16 2003 ohome1/
drwxr-xr-x 7 root system 8192 Dec 16 2003 tech/
drwxr-xr-x 140 root system 8192 May 31 09:14 u/
On hostB, I created sym links so software would not break:
cd /
l1 -l
lrwxrwxrwx 1 root system 12 Oct 28 2004 bhome1@ -> /home/bhome1/
lrwxrwxrwx 1 root system 12 Oct 28 2004 ohome1@ -> /home/ohome1/
lrwxrwxrwx 1 root system 10 Oct 28 2004 tech@ -> /home/tech/
lrwxrwxrwx 1 root system 7 Oct 28 2004 u@ -> /home/u/
The only thing that fails, is that some departments run nitely jobs
that test for "pwd", and it must equal what they expect to find
such as /u/jobs/bin. Instead, pwd displays /home/u/jobs/bin,
which causes their scripts to fail, and negate my advertisement
that this migration would be transparent.
My only workaround so far is a script, /local/bin/pwd:
#!/bin/tcsh
echo $cwd
exit
This give the desired results, but some users will have to
add the path /local/bin before /bin in their scripts.
Their jobs are submitted from an in-house job scheduler that
su's to the user, to execute their script. The /etc/csh.login
already has that setup, but I dont think that gets sourced
by "non logged in" jobs.
I know that in linux, the "mount --bind" would work.
I hope this explains my situation.
Thanks
Below was my original request.
Tru64 5.1B PK4 on an ES40
Hello,
I could not find the answer in the man pages, so here
is my question.
We wish to mount a subdirectory located in an advfs fileset
as its own mount point.
oak_local#local 47529432 9093988 38369368 20% /local
there is a subdirectory called /local/student
We would like to mount /student as its own mount point, even though
/home/student is already mounted.
Is there is way of doing this?
Thanks...
Bugs
Operating Systems Analyst for unix systems
Humboldt State Univ. Information Technology Services
Arcata, Calif.
email bb1@humboldt.edu
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