cdrecord -scanbus error

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cdrecord -scanbus error

Istvan Gabor-3
Hello:

In openSUSE 13.2 running the following as 'user' I get this:

> cdrecord -scanbus
Cdrecord-ProDVD-ProBD-Clone 3.01a25 (x86_64-unknown-linux-gnu)
Copyright (C) 1995-2014 Joerg Schilling
cdrecord: Insufficient 'file read' privileges. You will not be able to
open all needed devices.
cdrecord: Insufficient 'file write' privileges. You will not be able to
open all needed devices.
cdrecord: Insufficient 'device' privileges. You may not be able to send
all needed SCSI commands, this my cause various unexplainable problems.
cdrecord: Insufficient 'network' privileges. You will not be able to do
remote SCSI.
Linux sg driver version: 3.5.34
Using libscg version 'schily-0.9'.
...
scsibus1:
         1,0,0   100) 'TSSTcorp' 'CDDVDW SH-S223B ' 'SB02' Removable
CD-ROM
         1,1,0   101) *
         1,2,0   102) *
         1,3,0   103) *
         1,4,0   104) *
         1,5,0   105) *
         1,6,0   106) *
         1,7,0   107) *

etc. All devices are listed correctly.

'user' is in the following groups:

cat /etc/group | grep user
audio:x:17:user,pulse
cdrom:x:20:user
dialout:x:16:user
disk:x:6:user
floppy:x:19:user
users:x:100:

Do these insufficient privileges have any consequences when I write
CD/DVD?
If I run cdrecod -scanbus as root, I don't have those warnings.

How can I get correct (full) permissions for 'user'?

Thanks,

Istvan



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Re: cdrecord -scanbus error

Carlos E. R.-2
On 2017-06-16 22:57, Istvan Gabor wrote:
> Hello:
>
> In openSUSE 13.2 running the following as 'user' I get this:
>
>> cdrecord -scanbus
> Cdrecord-ProDVD-ProBD-Clone 3.01a25 (x86_64-unknown-linux-gnu) Copyright
> (C) 1995-2014 Joerg Schilling
> cdrecord: Insufficient 'file read' privileges. You will not be able to
> open all needed devices.

Same here, it is not needed, I think.

What operation do you want to do, really

>
> 'user' is in the following groups:
>
> cat /etc/group | grep user

No, issue the command "groups" as user.

--
Cheers / Saludos,

                Carlos E. R.
                (from 42.2 x86_64 "Malachite" at Telcontar)


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Re: cdrecord -scanbus error

Andrei Borzenkov
In reply to this post by Istvan Gabor-3
16.06.2017 23:57, Istvan Gabor пишет:

> Hello:
>
> In openSUSE 13.2 running the following as 'user' I get this:
>
>> cdrecord -scanbus
> Cdrecord-ProDVD-ProBD-Clone 3.01a25 (x86_64-unknown-linux-gnu) Copyright
> (C) 1995-2014 Joerg Schilling
> cdrecord: Insufficient 'file read' privileges. You will not be able to
> open all needed devices.
> cdrecord: Insufficient 'file write' privileges. You will not be able to
> open all needed devices.
> cdrecord: Insufficient 'device' privileges. You may not be able to send
> all needed SCSI commands, this my cause various unexplainable problems.
> cdrecord: Insufficient 'network' privileges. You will not be able to do
> remote SCSI.
> Linux sg driver version: 3.5.34
> Using libscg version 'schily-0.9'.
> ...
> scsibus1:
>         1,0,0   100) 'TSSTcorp' 'CDDVDW SH-S223B ' 'SB02' Removable CD-ROM
>         1,1,0   101) *
>         1,2,0   102) *
>         1,3,0   103) *
>         1,4,0   104) *
>         1,5,0   105) *
>         1,6,0   106) *
>         1,7,0   107) *
>
> etc. All devices are listed correctly.
>
> 'user' is in the following groups:
>
> cat /etc/group | grep user
> audio:x:17:user,pulse
> cdrom:x:20:user
> dialout:x:16:user
> disk:x:6:user
> floppy:x:19:user
> users:x:100:
>
> Do these insufficient privileges have any consequences when I write CD/DVD?

(open)SUSE maintainers think not, author of cdrecord thinks yes. See
https://bugzilla.opensuse.org/show_bug.cgi?id=550021 if you are interested.

> If I run cdrecod -scanbus as root, I don't have those warnings.
>
> How can I get correct (full) permissions for 'user'?
>

Run it as root (or SUID root) or find capability set that satisfies
cdrecord.

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