Skip site navigation (1)Skip section navigation (2)
Date:      Sat, 9 Jun 2012 15:57:07 -0400
From:      Mark Saad <nonesuch@longcount.org>
To:        "freebsd-stable@freebsd.org" <freebsd-stable@freebsd.org>
Subject:   Re: su problem
Message-ID:  <4D5EE1C7-9297-415B-A5A0-45801B8A0182@longcount.org>
In-Reply-To: <CAEW%2BogZ=nC6kGszy=krG8fbAno84AMxaPsrC5Fj1Z4zmtJMALg@mail.gmail.com>
References:  <CAEW%2BogYrUso=nqx4dUx0rhr9XUFMmSSMP-fxNa03pgj8tNF%2B%2Bg@mail.gmail.com> <201206091035.q59AZWFB058742@lurza.secnetix.de> <CAOgwaMvp4AyLNdvENL9rXoP6D6w9JaTJr1ML5uxb28Tg9=W2uQ@mail.gmail.com> <CAEW%2BogZ3H%2BgP86zcme-nuucLyDHmUo05uZ3R7Jc1hBb_7FM4gg@mail.gmail.com> <20120609122457.GS13609@albert.catwhisker.org> <CAEW%2BogadUQzu6k1XMXyLkqjEuq-_6gShiG5mRKbBgKMyoviAEg@mail.gmail.com> <20120609123626.GT13609@albert.catwhisker.org> <CAEW%2BogY4zZLj=D9cKuoG58Ozn_UbXjx3GJCT_Gtd4f4zEp3D2A@mail.gmail.com> <4FD37CF3.109@rdtc.ru> <CAEW%2BogZ=nC6kGszy=krG8fbAno84AMxaPsrC5Fj1Z4zmtJMALg@mail.gmail.com>

next in thread | previous in thread | raw e-mail | index | archive | help



On Jun 9, 2012, at 2:45 PM, Sami Halabi <sodynet1@gmail.com> wrote:

> Hi,
>=20
> %sysctl kern.console
> kern.console: ttyv0,dcons,/dcons,ttyv0,uart,ucom,
>=20
> %tail /var/log/messages
> Jun  7 19:54:35 vps16 kernel: Trying to mount root from ufs:/dev/da0s1a
> Jun  7 19:54:36 vps16 kernel: bge0: link state changed to UP
> Jun  7 20:18:04 vps16 kernel: ugen0.2: <vendor 0x09da> at usbus0
> Jun  7 20:18:04 vps16 kernel: ukbd0: <vendor 0x09da USB Keyboard, class
> 0/0, rev 1.10/2.50, addr 2> on usbus0
> Jun  7 20:18:04 vps16 kernel: kbd2 at ukbd0
> Jun  7 20:18:05 vps16 kernel: uhid0: <vendor 0x09da USB Keyboard, class
> 0/0, rev 1.10/2.50, addr 2> on usbus0
> Jun  7 20:19:37 vps16 login: ROOT LOGIN (root) ON ttyv1
> Jun  7 20:21:19 vps16 kernel: ugen0.2: <vendor 0x09da> at usbus0
> (disconnected)
> Jun  7 20:21:19 vps16 kernel: ukbd0: at uhub0, port 1, addr 2 (disconnecte=
d)
> Jun  7 20:21:19 vps16 kernel: uhid0: at uhub0, port 1, addr 2 (disconnecte=
d)
> %
>=20
> the system was loaded with keyboard and disconnected later if i understand=

> the logs...
>=20
> New ideas are appreciated, and thanks in advance,
> Sami
>=20
> On Sat, Jun 9, 2012 at 7:42 PM, Eugene Grosbein <egrosbein@rdtc.ru> wrote:=

>=20
>> 09.06.2012 19:47, Sami Halabi =D0=BF=D0=B8=D1=88=D0=B5=D1=82:
>>> %su -
>>> Password:
>>> load: 0.00  cmd: su 30588 [ttydcd] 0.91r 0.00u 0.00s 0% 2092k
>>=20
>> Perpaps, your system had no keyboard attached at boot time;
>> or for some other reason it booted with /dev/console being serial console=

>> instead of vidconsole. su locks trying to access serial console
>> that is /dev/ttyd0 by default and has Carrier Detect flag enabled.
>> Hence, it waits for CD on the first serial port (miserably and hopelessly=
).
>>=20
>> You can check if it's true with "sysctl kern.console" command.
>> You could ask someone to boot the system with keyboard attached -
>> no need to type anything, though. The system should detect it
>> and assingn /dev/ttyv0 as /dev/console instead of /dev/ttyd0.
>> And "su" won't lock.
>>=20
>> Eugene Grosbein
>>=20
>=20
>=20
>=20
> --=20
> Sami Halabi
> Information Systems Engineer
> NMS Projects Expert
> FreeBSD SysAdmin Expert
> _______________________________________________
> freebsd-stable@freebsd.org mailing list
> http://lists.freebsd.org/mailman/listinfo/freebsd-stable
> To unsubscribe, send any mail to "freebsd-stable-unsubscribe@freebsd.org"=20=


Check the permissions on the su binary it could be missing the suid but.

---
Mark saad | mark.saad@longcount.org




Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?4D5EE1C7-9297-415B-A5A0-45801B8A0182>