[Users] /dev/mem: Permission denied

Dean Gostisa dean.gostisa at gmail.com
Tue Feb 26 11:06:12 EST 2008


Um i used command:
vzctl set 104 --devices c:1:1:rw --save
Restarted VE
Output:
pic /proc/vz/devperms
.lf 1 /proc/vz/devperms
Version: 2.7
         0 b 016 *:*
         0 c 006 *:*
       104 c 006 1:2
       104 c 006 1:1

And system still show me Promission denied on /dev/mem in VE 104. Any idea?

Thank you
Dean

2008/2/26, Pavel Emelyanov <xemul at openvz.org>:
>
> Dean Gostisa wrote:
> > pic /proc/vz/devperms
> > .lf 1 /proc/vz/devperms
> > Version: 2.7
> >          0 b 016 *:*
> >          0 c 006 *:*
> >        104 c 006 1:2
>
>
> Here it is - vzctl added c 1:2 device, not the c 1:1.
> Try the
>
>         vzctl set 104 --devices c:1:1:rw --save
>
> command instead.
>
>
> > I use Gentoo stable OpenVZ: 2.6.18-028stab053
> > Should i use newer ?
>
>
> No. Looks like it's the vzctl fault. Try the above command,
> and if succeed, then upgrade the vzctl if required. If the
> --devnodes still doesn't work - fill the BUG in our bugzilla :)
>
> Thanks,
>
> Pavel
>
>
> >
> > 2008/2/26, Pavel Emelyanov <xemul at openvz.org>:
> >> Dean Gostisa wrote:
> >>> Um problem remains:
> >>> I set:
> >>> vzctl set 104 --devnodes mem:rw --save
> >>> And restarted VE, then i checked dev nodes in VE:
> >>> Doktor:/# ls -l /dev/mem
> >>> crwxrwxrwx 1 root news 1, 1 Apr 24  2007 /dev/mem
> >>
> >> OK, what's in the /proc/vz/devperms file after ve restart?
> >> And what's the kernel version you use?
> >>
> >>
> >>> But when i try to install still get same problem:
> >>> apt-get --reinstall install xfonts-base
> >>> Reading package lists... Done
> >>> Building dependency tree... Done
> >>> 0 upgraded, 0 newly installed, 1 reinstalled, 0 to remove and 0 not
> >>> upgraded.
> >>> Need to get 0B/6131kB of archives.
> >>> After unpacking 0B of additional disk space will be used.
> >>> Do you want to continue [Y/n]? Y
> >>> (Reading database ... 20054 files and directories currently
> installed.)
> >>> Preparing to replace xfonts-base 1:1.0.0-4 (using
> >>> .../xfonts-base_1%3a1.0.0-4_all.deb) ...
> >>> /dev/mem: Permission denied
> >>> Unpacking replacement xfonts-base ...
> >>> /dev/mem: Permission denied
> >>> warning: /usr/lib/X11/fonts/misc does not exist or is not a directory
> >>> warning: /usr/lib/X11/fonts/misc does not exist or is not a directory
> >>> Setting up xfonts-base (1.0.0-4) ...
> >>> /dev/mem: Permission denied
> >>> warning: /usr/lib/X11/fonts/misc does not exist or is not a directory
> >>> warning: /usr/lib/X11/fonts/misc does not exist or is not a directory
> >>>
> >>> Any other idea?
> >>>
> >>>
> >>>
> >>> 2008/2/26, Pavel Emelyanov <xemul at openvz.org>:
> >>>> Dean Gostisa wrote:
> >>>>> Hi,
> >>>>>
> >>>>> I have problem, i have created openvz Gentoo Server, and create
> Debian
> >>>> VM on
> >>>>> it, but when installing some packages like this i get:
> >>>>> apt-get --reinstall install xfonts-base
> >>>>> Reading package lists... Done
> >>>>> Building dependency tree... Done
> >>>>> 0 upgraded, 0 newly installed, 1 reinstalled, 0 to remove and 0 not
> >>>>> upgraded.
> >>>>> Need to get 0B/6131kB of archives.
> >>>>> After unpacking 0B of additional disk space will be used.
> >>>>> Do you want to continue [Y/n]? y
> >>>>> (Reading database ... 20054 files and directories currently
> >> installed.)
> >>>>> Preparing to replace xfonts-base 1:1.0.0-4 (using
> >>>>> .../xfonts-base_1%3a1.0.0-4_all.deb) ...
> >>>>> /dev/mem: Permission denied
> >>>>> Unpacking replacement xfonts-base ...
> >>>>> /dev/mem: Permission denied
> >>>>> warning: /usr/lib/X11/fonts/misc does not exist or is not a
> directory
> >>>>> warning: /usr/lib/X11/fonts/misc does not exist or is not a
> directory
> >>>>> Setting up xfonts-base (1.0.0-4) ...
> >>>>> /dev/mem: Permission denied
> >>>>> warning: /usr/lib/X11/fonts/misc does not exist or is not a
> directory
> >>>>> warning: /usr/lib/X11/fonts/misc does not exist or is not a
> directory
> >>>>>
> >>>>> Do you have any idea why?
> >>>> Yup - you should give the device permissions to /dev/mem for this VE.
> >>>> Read man on vzctl for --devnodes option.
> >>>>
> >>>>
> >>>>> Thank you for your help,
> >>>>> Dean
> >>>>>
> >>>>>
> >>>>>
> >>>>>
> >>
> ------------------------------------------------------------------------
> >>>>> _______________________________________________
> >>>>> Users mailing list
> >>>>> Users at openvz.org
> >>>>> https://openvz.org/mailman/listinfo/users
> >>>
> >>
> >
> >
>
>


-- 
Everybody have fun!!!
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