watch(8) does not work in jails

[David DEMELIER]

2010/8/17 Roland Smith <rsmith at xs4all.nl>:
> On Tue, Aug 17, 2010 at 12:09:23AM +0200, David DEMELIER wrote:
>> > Does /dev/pts/0 actually exist in the jail's devfs instance, and are its
>> > permissions correct?
>> >
>>
>> (In jail) :
>>
>> # ls -l /dev/pts/*
>> crw--w----  1 markand  tty    0,  94 17 Aug 00:06 /people/dev/pts/0
>> crw--w----  1 markand  tty    0,  96 17 Aug 00:06 /people/dev/pts/1
>> crw--w----  1 root     tty    0, 101 21 Jul 00:07 /people/dev/pts/2
>> crw--w----  1 markand  tty    0, 108 17 Aug 00:06 /people/dev/pts/3
>> crw--w----  1 markand  tty    0,  99 16 Aug 01:28 /people/dev/pts/4
>> crw--w----  1 markand  tty    0, 112 17 Aug 00:05 /people/dev/pts/5
>> crw--w----  1 root     tty    0, 111 17 Aug 00:06 /people/dev/pts/6
>> crw--w----  1 root     tty    0, 114 16 Aug 23:53 /people/dev/pts/7
>> crw--w----  1 root     tty    0, 100 17 Aug 00:06 /people/dev/pts/8
>
> I think you mounted your devfs incorrectly or you started the jail in the
> wrong directory. If ls is run inside the jail, it should be /dev/pts/N, not
> /people/dev/pts/N!
>
> Roland
> --
> R.F.Smith                                   http://www.xs4all.nl/~rsmith/
> [plain text _non-HTML_ PGP/GnuPG encrypted/signed email much appreciated]
> pgp: 1A2B 477F 9970 BA3C 2914  B7CE 1277 EFB0 C321 A725 (KeyID: C321A725)
>

Sorry I made a mistake while I was writing. In fact there is the
permissions in the jail :

markand at Orange ~ $ sudo jexec 1 tcsh
# su -
People# ls -l /dev/pts/*
crw--w----  1 zazak  tty    0, 118  3 Sep 20:39 /dev/pts/0
crw--w----  1 zazak  tty    0,  99  3 Sep 07:07 /dev/pts/4
crw--w----  1 zazak  tty    0,  94  3 Sep 20:39 /dev/pts/6
People# who
zazak           pts/0     1 Sep 19:07 (92.147.166.20:S.)
zazak           pts/4    10 Aug 16:00 (92.147.166.20:S.)
People# watch pts/0
watch: fatal: cannot open snoop device

And that's it.

-- 
Demelier David