Re: [gentoo-user] ttyS0 - ownership as root:dialout

[Helmut Jarausch]

On 01/20/2014 06:02:33 PM, Joseph wrote:
> On 01/20/14 18:45, Alan McKinnon wrote:
>> On 01/20/14 18:30, Joseph wrote:
>>> After upgrade to "systemd" my /dev/ttyS0 shows up as: root:dialout
>>> ownership and permission 600
>>>
>>> When I change as root manually to: chown uucp:dialout /dev/ttyS0
>>> chmod 666 /dev/ttyS0
>>>
>>> after restart it goes back to previous setting: root:dialout 600
>>> How to change it?
>>>
>>> My VituralBox complain and will not start with owner: root:dialout
>>> /dev/ttyS0
>>>
>>
>>
>> It's a udev rule. Mine looks like this, tweak yours
>>
>> $ grep -r uucp /lib/udev/rules.d/
>> /lib/udev/rules.d/50-udev-default.rules:KERNEL=="tty[A-Z]*[0-9]|pppox[0-9]*|ircomm[0-9]*|noz[0-9]*|rfcomm[0-9]*",
>> GROUP="uucp"
>>
>>
>>
>> You'd put your file in /etc/udev/rules.d/, not in /lib/ as above,
>> that's
>> the as-shipped location for defaults
>>
>>--
>> Alan McKinnon
>> alan.mckinnon@×××××.com
>
> Thanks for the hint Alan.
> Mine looks like this:
> grep -r dialout /lib/udev/rules.d/
> /lib/udev/rules.d/50-udev-default.rules:KERNEL=="tty[A-Z]*[0-9]|pppox[0-9]*|ircomm[0-9]*|noz[0-9]*|rfcomm[0-9]*",
> GROUP="dialout"
>
> I think the group "dialout" is OK. What the Virtualbox doesn't like
> is the ownership, the first part "root" (root:dialout)
> How to influence the first part.
>
> The strange part is that I have upgraded two system and one is
> shoring ttyS0 as:
> uucp:dialout
>
> and the another one as:
> root:dialout.
>


Hi,

I have the same permissions and VirtualBox (4.3.6) runs just fine.
VirtualBox is picky about the permission of the hard-disk image (VDI  
file)
There it likes group vboxusers and group r/w permissions.

Helmut