cannot print, something wrong with cups server
Horst H. von Brand
vonbrand at inf.utfsm.cl
Wed Jan 23 16:09:48 UTC 2008
Tim Waugh <twaugh at redhat.com> wrote:
> On Tue, 2008-01-22 at 22:09 -0300, Horst H. von Brand wrote:
> > I've seen non-functioning due to:
> >
> > - Bad permissions on /dev/bus/usb/*/* for a printer (should be user root,
> > group lp, with permissions rw-rw---)
>
> No, that is not correct. Group lp should have rw access, but this is
> done using ACLs. So the ownership and permissions should be root:root
> rw-r----- but there should also be an ACL granting rw access for group
> lp, and an ACL granting rw access for each console user.
The printer here is /dev/bus/usb/001/004, freshly booted after yesterday's
updates for x86_64:
[root at quelen mail]# ls -l /dev/bus/usb/001/004
crw-r--r-- 1 root root 189, 3 2008-01-23 09:15 /dev/bus/usb/001/004
[root at quelen mail]# getfacl /dev/bus/usb/001/004
getfacl: Removing leading '/' from absolute path names
# file: dev/bus/usb/001/004
# owner: root
# group: root
user::rw-
group::r--
other::r--
/dev/usb/lp0 shows exactly the same.
--
Dr. Horst H. von Brand User #22616 counter.li.org
Departamento de Informatica Fono: +56 32 2654431
Universidad Tecnica Federico Santa Maria +56 32 2654239
Casilla 110-V, Valparaiso, Chile Fax: +56 32 2797513
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