Bug 178221 - Addition to handbook jails chapter: warning about make deinstall
Summary: Addition to handbook jails chapter: warning about make deinstall
Status: Open
Alias: None
Product: Documentation
Classification: Unclassified
Component: Documentation (show other bugs)
Version: Latest
Hardware: Any Any
: Normal Affects Only Me
Assignee: freebsd-doc mailing list
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2013-04-28 17:50 UTC by bt
Modified: 2017-12-31 22:27 UTC (History)
0 users

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Description bt 2013-04-28 17:50:00 UTC
When setting up a machine according to the "Application of Jails" section of FreeBSD Handbook [1], one runs into a problem where "make deinstall" inside of a jail does not work as expected. There is a workaround, which probably should be noted in the chapter.

Note that this only applies to ports installed in a jail. Ports installed on the base system do not need the workaround.

[1] http://www.freebsd.org/doc/handbook/jails-application.html

Original thread: http://forums.freebsd.org/showthread.php?p=213757

Fix: 

The workaround is to use "make deinstall PREFIX=/s/usr-local", where /s/usr-local is whatever make spits out when you type make deinstall. If you followed the handbook instructions exactly it will be /s/usr-local.
Comment 1 freebsd-lists 2013-04-29 20:22:57 UTC
Brandon Thomson <bt@brandonthomson.com> writes:

> When setting up a machine according to the "Application of Jails"
> section of FreeBSD Handbook [1], one runs into a problem where "make
> deinstall" inside of a jail does not work as expected. There is a
> workaround, which probably should be noted in the chapter.
>
> Note that this only applies to ports installed in a jail. Ports
> installed on the base system do not need the workaround.
>
> [1] http://www.freebsd.org/doc/handbook/jails-application.html
>
> Original thread: http://forums.freebsd.org/showthread.php?p=213757
>>How-To-Repeat:
>
>>Fix:
> The workaround is to use "make deinstall PREFIX=/s/usr-local", where
> /s/usr-local is whatever make spits out when you type make
> deinstall. If you followed the handbook instructions exactly it will
> be /s/usr-local.

Maybe it's just that I don't work with jails much, but I'm not following
the issue.

If you're actually running *inside* the jail, you shouldn't see that
prefix.

Where you need to run the command that way is if you're using the parent
system to update the port that the jail runs. But then your "make
install" process is not actually *in* the jail at all.
Comment 2 bt 2013-05-02 05:48:04 UTC
>>When setting up a machine according to the "Application of Jails"
>>section of FreeBSD Handbook [1], one runs into a problem where "make
>>deinstall" inside of a jail does not work as expected. There is a
>>workaround, which probably should be noted in the chapter.
>>
>>Note that this only applies to ports installed in a jail. Ports
>>installed on the base system do not need the workaround.
>>
>>[1] http://www.freebsd.org/doc/handbook/jails-application.html
>>
>>Original thread [2]: http://forums.freebsd.org/showthread.php?p=213757
>>
>>The workaround is to use "make deinstall PREFIX=/s/usr-local", where
>>/s/usr-local is whatever make spits out when you type make
>>deinstall. If you followed the handbook instructions exactly it will
>>be /s/usr-local.

>If you're actually running *inside* the jail, you shouldn't see that
>prefix.

Do you mean the directory /s/usr-local should not be visible inside the jail?
On the jails I have set up it is, and I believe that is in accord with the
instructions in [1].

For example if /s/usr-local were not visible inside the jail, the symlink at
/usr/local pointing to ../s/usr-local would be a broken link.

So, I think the PREFIX of /s/usr-local *should* be visible inside the jail.

>Where you need to run the command that way is if you're using the parent
>system to update the port that the jail runs. But then your "make
>install" process is not actually *in* the jail at all.

I did not attempt to deinstall a port run by the jail from the parent system.
My attempt was from inside the jail environment, using jexec.

I agree that one would *also* need to adjust the PREFIX if one wanted to
deinstall a port in the jail from the parent system. In this case, the PREFIX
would need to be set to /usr/jails/s/myjail/usr-local or similar.

However, the point of this issue is that PREFIX also needs to be set when
running "make deinstall" *inside* the jail environment. If you don't set PREFIX,
you will run into the error described in [2].

Note that the host's /usr/jails/s/myjail should be mounted to /s inside the
jail, so the PREFIX inside the jail is: /s/usr-local.

Hope that makes sense! Jail paths can be really confusing :(

I suppose it's also possible that both myself and the original poster in [2]
have failed to follow the instructions in [1] correctly in some way that is
causing this issue to arise, but that seems unlikely to me.

Warm regards,
Brandon
Comment 3 bt 2013-05-13 13:54:48 UTC
[This message didn't make it into GNATS because I left out the address. Just
resubmitting so it gets archived]

>It seems to me that the Handbook advice includes linking the
>/s/usr-local onto /usr/local inside the jail.  This is highly desirable
>for regular users because having /usr/local/bin in a PATH works just
>like on a real system.

Yes, I think that is correct. This link exists on my system where I found this
issue.

Here is a transcript of a shell session demonstrating the issue. I also
included some demonstration that the link from /usr/local to /rw/usr_local
exists and is working (note that I have used slightly different directory names
from the handbook example, so it is /rw/usr_local instead of /s/usr-local)

I probably should have included this in the first message! Sorry about that.

root@pipe:/usr/ports/ports-mgmt/portaudit # make
===> Fetching all distfiles required by portaudit-0.6.0 for building
===>  Extracting for portaudit-0.6.0
===>  Patching for portaudit-0.6.0
===>  Configuring for portaudit-0.6.0
===>  Building for portaudit-0.6.0
root@pipe:/usr/ports/ports-mgmt/portaudit # make install
===>  Installing for portaudit-0.6.0
===>   Generating temporary packing list
===>  Checking if ports-mgmt/portaudit already installed

===>  To check your installed ports for known vulnerabilities now, do:

        /usr/local/sbin/portaudit -Fda

===>   Compressing manual pages for portaudit-0.6.0
===>   Registering installation for portaudit-0.6.0
root@pipe:/usr/ports/ports-mgmt/portaudit # make deinstall
===>  Deinstalling for ports-mgmt/portaudit
===>   portaudit-0.6.0 has a different PREFIX: /rw/usr_local, skipping
root@pipe:/usr/ports/ports-mgmt/portaudit # make deinstall PREFIX=/rw/usr_local
===>  Deinstalling for ports-mgmt/portaudit
===>   Deinstalling portaudit-0.6.0

The portaudit package has been deleted.

root@pipe:/usr/ports/ports-mgmt/portaudit # readlink /usr/local
../rw/usr_local
root@pipe:/usr/ports/ports-mgmt/portaudit # ls -la /usr/
total 144
drwxr-xr-x  14 root  wheel   16 Mar 16 11:46 .
drwxr-xr-x  13 root  wheel   20 Apr 18 14:38 ..
lrwxr-xr-x   1 root  wheel   15 Mar 16 11:46 X11R6 -> ../rw/usr_X11R6
drwxr-xr-x   2 root  wheel  475 Mar 16 11:00 bin
drwxr-xr-x   2 root  wheel   16 Mar 16 10:59 games
drwxr-xr-x  53 root  wheel  283 Mar 16 10:59 include
drwxr-xr-x   7 root  wheel  556 Mar 16 10:59 lib
drwxr-xr-x   4 root  wheel  571 Mar 16 11:00 lib32
drwxr-xr-x   5 root  wheel    5 Mar 16 10:59 libdata
drwxr-xr-x   6 root  wheel   62 Mar 16 11:00 libexec
lrwxr-xr-x   1 root  wheel   15 Mar 16 11:45 local -> ../rw/usr_local
drwxr-xr-x   2 root  wheel    2 Mar 16 10:59 obj
drwxr-xr-x  68 root  wheel   83 Apr 21 20:18 ports
drwxr-xr-x   2 root  wheel  286 Mar 16 10:59 sbin
drwxr-xr-x  27 root  wheel   27 Mar 16 10:59 share
drwxr-xr-x  22 root  wheel   31 Mar 16 04:05 src
root@pipe:/usr/ports/ports-mgmt/portaudit # ls -la /usr/local/
total 111
drwxr-xr-x  13 root  wheel  13 May  7 09:00 .
drwxr-xr-x  12 root  wheel  15 May  7 09:00 ..
drwxr-xr-x   2 root  wheel   2 May  7 09:00 bin
drwxr-xr-x   6 root  wheel   6 May  7 09:02 etc
drwxr-xr-x   3 root  wheel   3 May  7 09:00 include
drwxr-xr-x   2 root  wheel   2 May  7 09:00 info
drwxr-xr-x   3 root  wheel   3 May  7 09:00 lib
drwxr-xr-x   5 root  wheel   5 May  7 09:00 libdata
drwxr-xr-x   2 root  wheel   2 May  7 09:00 libexec
drwxr-xr-x  28 root  wheel  28 May  7 09:00 man
drwxr-xr-x   2 root  wheel   2 May  7 09:02 sbin
drwxr-xr-x  15 root  wheel  15 May  7 09:00 share
drwxr-xr-x   2 root  wheel   2 May  7 09:00 www
root@pipe:/usr/ports/ports-mgmt/portaudit #
Comment 4 Eitan Adler freebsd_committer freebsd_triage 2017-12-31 07:58:30 UTC
For bugs matching the following criteria:

Status: In Progress Changed: (is less than) 2014-06-01

Reset to default assignee and clear in-progress tags.

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