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  3. February 2017

Re: [IBMiOSS] /QOpenSys/QOpenSys?

All,

In my experience this comes up very often with 3rd party software that has been compiled for AIX. The software has hard-coded paths of "/usr", "/usr/lib", "/usr/bin" and the like -- and frequently its hard-coded into the program.

The workaround, of course, is to use chroot. But now if you try to use it in conjunction with software that expects /QOpenSys (such as a script with a bang-path starting with /QOpenSys) the /QOpenSys causes it to fail. Thus the symlink, which solves the problem.

In a perfect world, none of this stuff would be hard-coded... but alas, the world is not perfect.

Since the symlink takes up almost no DASD, its worth having it there.

-SK



On 2/27/17 3:45 PM, Kevin Adler wrote:
We have a technote about it:
http://www-01.ibm.com/support/docview.wss?uid=nas8N1016916

Frankly I don't think that anything as part of PASE itself requires it to
be there, however if you have any software that does chroot("/QOpenSys")
it's handy since then you can still reference /QOpenSys paths from within
the chroot. I have no idea what software does this, but I'm fairly certain
that nothing within PASE (SS1 option 33) needs it. YMMV.

"OpenSource" <opensource-bounces@xxxxxxxxxxxx> wrote on 02/27/2017
03:14:09 PM:

From: Bradley Stone <bvstone@xxxxxxxxx>
To: IBMi Open Source Roundtable <opensource@xxxxxxxxxxxx>
Date: 02/27/2017 03:14 PM
Subject: Re: [IBMiOSS] /QOpenSys/QOpenSys?
Sent by: "OpenSource" <opensource-bounces@xxxxxxxxxxxx>

I won't delete it... serves a purpose? Here's the ls -al

bash-4.2$ ls -al
total 1432
drwxrwsrwx 11 qsys 0 282624 May 12 2016 .
drwxrwsrwx 31 qsys 0 299008 Jan 13 15:20 ..
drwxrwsr-x 3 qsys 0 8192 Mar 16 2016 IBM
drwxr-sr-x 4 qsys 0 8192 Mar 16 2016 QIBM
lrwxrwxrwx 1 qsys 0 2 Mar 16 2016 QOpenSys -> .
d---rws--- 2 4294770704 0 12288 Feb 1 09:01 QSR
lrwxrwxrwx 1 qsys 0 14 Mar 16 2016 bin -> usr/bin
drwxr-xr-x 2 bvstone 0 65536 Mar 28 2016 download
drwxr-sr-x 3 qsys 0 8192 Jul 7 2016 etc
lrwxrwxrwx 1 qsys 0 14 Mar 16 2016 lib -> usr/lib
lrwxrwxrwx 1 qsys 0 18 Apr 25 2016 lib64 ->
usr/lib64
drwxrwsrwx 3 bvstone 0 8192 Mar 28 2016 opt
drwxr-sr-x 2 qsys 0 8192 Mar 16 2016 sbin
drwxr-sr-x 14 qsys 0 8192 Apr 25 2016 usr
drwxr-sr-t 4 qsys 0 8192 Mar 28 2016 var

Bradley V. Stone
www.bvstools.com
Native IBM i e-Mail solutions for Microsoft Office 365, Gmail, or any
Cloud
Provider!

On Mon, Feb 27, 2017 at 3:10 PM, Aaron Bartell <aaronbartell@xxxxxxxxx>
wrote:

Is it possible I did that accidentally? Ok to just delete?

Don't delete it! I don't recall why it is there; but it serves a
purpose.
Maybe Kevin Adler can comment.

Aaron Bartell
IBM i hosting, starting at $157/month. litmis.com/spaces


On Mon, Feb 27, 2017 at 3:07 PM, Bradley Stone <bvstone@xxxxxxxxx>
wrote:

Over the weekend I applied the latest CUM for V7R3. I was hoping
Node6
would be there, but it wasn't.

Anyhow, I found something else interesting while looking around. I
am
not
sure how this happened:

bash-4.2$ cd /QOpenSys
bash-4.2$ ls
IBM QOpenSys bin etc lib64 sbin var
QIBM QSR download lib opt usr
bash-4.2$

Both QOpenSys directories have the exact same creation date.
3/16/2016.
The subdirectory has a change date of 3/16/2016 as well.
Unfortunatley
it
has a last access date of today since I was like "Wha? Why is this
there"
and went in to see what is there.

It seems to be a copy of the /QOpenSys directory.

More info from WRKLNK:
Object . . . . . . : /QOpenSys/QOpenSys

Type . . . . . . . . . . . . . . . . . : SYMLNK

Owner . . . . . . . . . . . . . . . . : QSYS
System object is on . . . . . . . . . : Local
Auxiliary storage pool . . . . . . . . : 1
Object overflowed . . . . . . . . . : No

Coded character set ID . . . . . . . . : 1200
Hidden file . . . . . . . . . . . . . : No
PC system file . . . . . . . . . . . . : No
Read only . . . . . . . . . . . . . . : No

Need to archive (PC) . . . . . . . . . : Yes
Need to archive (System) . . . . . . . : Yes
Creation date/time . . . . . . . . . . : 03/16/16 10:23:46
Last access date/time . . . . . . . . : 02/27/17 15:59:24
Data change date/time . . . . . . . . : 03/16/16 10:23:46
Attribute change date/time . . . . . . : 03/16/16 10:23:46

Size of object data in bytes . . . . . : 2
Allocated size of object . . . . . . . : 4096
Size of extended attributes . . . . . : 0
Storage freed . . . . . . . . . . . . : No
Temporary object . . . . . . . . . . . : No

Auditing value . . . . . . . . . . . . : *NONE

Object domain . . . . . . . . . . . . : *SYSTEM

Number of hard links . . . . . . . . . : 1





Set effective user ID . . . . . . . . : No

Set effective group ID . . . . . . . . : No

Restricted rename and unlink . . . . . : No



Can be saved . . . . . . . . . . . . . : Yes

System restricts save . . . . . . . : No





File ID . . . . . . . . . . . . . . . :
X'00000000000000019D122595000033E1'


Object is currently journaled . . . . : No



Is it possible I did that accidentally? Ok to just delete?


Bradley V. Stone
www.bvstools.com
Native IBM i e-Mail solutions for Microsoft Office 365, Gmail, or
any
Cloud
Provider!
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