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Date:      Fri, 16 Jun 2017 08:21:56 -0500
From:      Karl Denninger <karl@denninger.net>
To:        freebsd-stable@freebsd.org
Subject:   Re: Interesting permissions difference on NanoBSD build
Message-ID:  <0561597d-4b24-f68e-33a8-d0902e7696da@denninger.net>
In-Reply-To: <1387791f-fe22-08d7-2048-26bd95eab451@madpilot.net>
References:  <a6e9db4f-235e-bd40-e361-a8af84a68186@denninger.net> <1387791f-fe22-08d7-2048-26bd95eab451@madpilot.net>
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[-- Attachment #1 --]
On 6/16/2017 07:52, Guido Falsi wrote:
> On 06/16/17 14:25, Karl Denninger wrote:
>> I've recently started playing with the "base" NanoBSD scripts and have
>> run into an interesting issue.
> [...]
>> Note the missing "r" bit for "other" in usr and etc directories -- and
>> the missing "x" bit (at minimum) for the root!  The same is carried down
>> to "local" under usr:
>>
>> root@NewFS:/pics/Crochet-work-AMD/obj/_.w # ls -al usr
>> total 134
>> drwxr-x--x  12 root  wheel   12 Jun 15 17:10 .
>> drwxr-x---  18 root  wheel   24 Jun 15 17:10 ..
>> drwxr-xr-x   2 root  wheel  497 Jun 15 17:09 bin
>> drwxr-xr-x  52 root  wheel  327 Jun 15 17:10 include
>> drwxr-xr-x   8 root  wheel  655 Jun 15 17:10 lib
>> drwxr-xr-x   4 root  wheel  670 Jun 15 17:09 lib32
>> drwxr-xr-x   5 root  wheel    5 Jun 15 17:10 libdata
>> drwxr-xr-x   7 root  wheel   70 Jun 15 17:10 libexec
>> drwxr-x--x  10 root  wheel   11 Jun 15 17:10 local
>> drwxr-xr-x   2 root  wheel  294 Jun 15 17:08 sbin
>> drwxr-xr-x  31 root  wheel   31 Jun 15 17:10 share
>> drwxr-xr-x  14 root  wheel   17 Jun 15 17:10 tests
>> root@NewFS:/pics/Crochet-work-AMD/obj/_.w #
> I have no idea why this is happening on your system but I'm not
> observing it here:
>
>> ls -al usr
> total 85
> drwxr-xr-x   9 root  wheel    9 Jun 15 13:32 .
> drwxr-xr-x  22 root  wheel   29 Jun 15 13:32 ..
> drwxr-xr-x   2 root  wheel  359 Jun 15 13:32 bin
> drwxr-xr-x   4 root  wheel  446 Jun 15 13:32 lib
> drwxr-xr-x   3 root  wheel    3 Jun 15 13:32 libdata
> drwxr-xr-x   5 root  wheel   47 Jun 15 13:32 libexec
> drwxr-xr-x  12 root  wheel   13 Jun 15 13:32 local
> drwxr-xr-x   2 root  wheel  218 Jun 15 13:32 sbin
> drwxr-xr-x  17 root  wheel   17 Jun 15 13:32 share
>
>
> and I get (almost) the same on the installed nanobsd system:
>> ls -al usr
> total 24
> drwxr-xr-x   9 root  wheel    512 Jun 15 13:32 .
> drwxr-xr-x  23 root  wheel    512 Jun 15 13:34 ..
> drwxr-xr-x   2 root  wheel   6144 Jun 15 13:32 bin
> drwxr-xr-x   4 root  wheel  10752 Jun 15 13:32 lib
> drwxr-xr-x   3 root  wheel    512 Jun 15 13:32 libdata
> drwxr-xr-x   5 root  wheel   1024 Jun 15 13:32 libexec
> drwxr-xr-x  12 root  wheel    512 Jun 15 13:32 local
> drwxr-xr-x   2 root  wheel   4096 Jun 15 13:32 sbin
> drwxr-xr-x  17 root  wheel    512 Jun 15 13:32 share
>
> The machine I'm building the NanoBSD image on is running head r318959,
> and is running ZFS, while the NanoBSD system I've built is tracking
> 11-STABLE and is at r319971 at present, so a BETA1.
>
> Could you report version information too? maybe it's a problem present
> on head NanoBSD scripts?
FreeBSD 11.0-STABLE #15 r312669M: Mon Jan 23 14:01:03 CST 2017    
karl@NewFS.denninger.net:/usr/obj/usr/src/sys/KSD-SMP

I also build using Crochet against both /usr/src (my "primary" source
repo, which is on the rev noted here) and against a second one (-HEAD),
which I need to use for the RPI3.  Neither winds up with this sort of
permission issue.

The obj directory is on /pics/Crochet-Work-AMD, which is a zfs
filesystem mounted off a "scratch" SSD.

The problem appears to stem from the creation of "_.w" and since
directory permissions are "normally" inherited it promulgates from there
unless an explicit permission set occurs.  Yet I see nothing that would
create the world directory with anything other than the umask at the
time it runs.

I *am* running this from "batch" -- perhaps that's where the problem is
coming from?  I'll try adding a "umask 022" to the nanobsd.sh script at
the top and see what that does.

-- 
Karl Denninger
karl@denninger.net <mailto:karl@denninger.net>
/The Market Ticker/
/[S/MIME encrypted email preferred]/

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