Postings by wwp

CentOS for musicians?


still searching but didn't find very precise answers yet, is there a
computer-aided musical creation -oriented flavor of CentOS (like the
Ubuntu Studio)? Or would it be about gathering stuff from different
repos and setting up everything by hand?

A repository that would provide low-latency kernel (realtime one?):
I've found the CentOS-RT from the CERN + (1)).
Specific tools (from Jack/qjackctl, carla, audacity ..

C7 on Dell Precision 7530


does anybody have experience with installing and running CentOS 7 on
Dell Precision 7530 series (w/ Intel gfx chipset if that matters)?
It can be bought w/ Ubuntu 16.04 LTS pre-installed (which doesn't
attract me at all), but prior to use such hw model at work, I'd like to
understand where I'm going to. Especially after my bad experiences
installing C7 on "modern" (read since skylake variants) hardware
whereas Ubuntu variants went better, gosh.

C7, pulseaudio, multi-user setup

Hello there,

I'm on a CentOS7 laptop, in a Mate session w/ my default user, and in
that desktop, I run apps from other users using sudo, su. It appears
that apps started using sudo or in terminals+su, can't play sound:

[pulseaudio] main.c: User-configured server at {f7ac68929370425d82f882c116a21597}unix:/run/user/1000/pulse/native, refusing to start/autospawn.

User 1000 is my default user. I've searched and read a lot about this
topic, and found many suggestions but none works so far.

What's the correct way to allow all users to play sound in my default
user's desktop session?

CentOS 6: meson/ninja in python36 requires python27

Hello there,

on a CentOS 6 box, in the need for `meson`, I've installed rh-python36
using yum, then meson and ninja using `pip3.6 install meson ninja`.

Later at run-time, while building atk 2.29.1:

$ meson --prefix /opt/atk _build
$ ninja-build -C _build

FAILED: atk/atkmarshal.c
/opt/gimp-2.8/bin/glib-genmarshal --prefix atk_marshal --output atk/atkmarshal.c --body ../atk/atkmarshal.list --include-header atkmarshal.h
/opt/rh/python27/root/usr/bin/python: error while loading shared libraries: cannot open shared object file: No such file or directory
ninja: build stoppe

bash completion in C7

Hello there,

while bash completion was working great to me in CentOS6, since I'm
using C7 I spend my day stuck on completion not working the way it

The bad situations I'm facing are:
- it doesn't expand *foo whereas there are *foo-named files in current dir, for instance:
# rm *foo
will show nothing whereas there's a file barfoo in curdir.

- completion takes 10 sec to propose me something, I don't have an
example right here but I'd prefer no completion instead of a
completion that hangs for more than 3 sec.

I don't care much about command-specific completion (command

cron.daily and others, not running

Hello there,

I've just noticed that scripts in /etc/cron.{daily,weekly,...} are not
launched for several weeks (I noticed a `locate` not finding a recently
added binary).

VMWare Workstation 14 on CentOS7

Hello there,

I'm encountering blocking issues with VMWare Workstation v14/v12 on
CentOS 7.

The issue is that any Linux guestsystem will get network-disconnected
after a short while. I tried w/ brand new guest installs, guests coming
from a v12 WS. Tried different guest network settings, I always get
disconnected. I found several cases like this on the Web, but couldn't
see any working solution yet.

My CentOS7 runs 4.9.75-204.el7.centos.x86_64 kernel.

On my previous CentOS 6, still alive, v12 works like a charm.

Does anyone have experience with this?


lensfun-update-data on CentOS 7

Hello there,

did anybody have lensfun-update-data (*) to work on CentOS 7?

Here I get, as root:

$ lensfun-update-data
Traceback (most recent call last):
File "/bin/lensfun-update-data", line 118, in <module>
File "/bin/lensfun-update-data", line 99, in read_location
print("Reading {} \u2026".format(base_url + "versions.json"))
UnicodeEncodeError: 'ascii' codec can't encode character '\u2026' in position 56: ordinal not in range(128)

(*) 0.3.1 from EPEL.


Re-enable grub boot in UEFI (Windows took over it)

Hello there,

Dell XPS-15-9560 laptop (SSD drive, UEFI, secure boot off).. Windows 10
pre-installed, CentOS7 installed in a separate partition and running
for months w/o issue.

CentOS 7: unable to mount


when I plug an external disk (USB3) of mine, I get this 'Unable to
mount /mnt/storage10' alert:

Error mounting system-managed device /dev/sda1: Command-line `mount "/mnt/storage10"' exited with non-zero exit status 32: mount: /dev/sda1 is already mounted or /mnt/storage10 busy
/dev/sda1 is already mounted on /mnt/storage10

And it's right, /mnt/storage10 has just been mounted (by root):

# mount
/dev/sda1 on /mnt/storage10 type ext4 (rw,nosuid,nodev,relatime,seclabel,data=ordered)

as it's defined in /etc/fstab:

VMWare Workstation 14 on CentOS 7?


did anybody succeed in installing/updating to VMWare Workstation
14.0.0-6661328 on an updated CentOS 7 (kernel 4.9.54-203.el7.centos.x86_64)?

Here it fails at building vmmon/vmnet modules.

I couldn't find anything about this on the Internet.. WS seems to get
less popular and unfortunately reproduces the same inability to install
upon kernel updates, that drives me nut for years now. Please don't
suggest other VM sw, I'm stuck to VMWare WS at work..


CentOS 7: shntools + cuetools

Hello there,

I've had to set up some tools to convert cue+flac tuples to mp3 files
and split albums flacs into songs flacs.

Formerly on CentOS 6, I think I had shntools and cuetools from the
nux-dextop repo (not sure about shntools).

Anyway, here on CentOS 7 I couldn't find any of them in repositories,
so I did `rpmbuild --rebuild` from:

- cuetools-1.4.0-0.6.svn305.el6.nux.src.rpm
- shntool-3.0.10-10.fc21.src.rpm

and `yum localinstall`'ed the RPMs, tools run fine so far.

Was it right to do so? If yes, then this email would serve the sake of
the archives.

CentOS7 gnome apps look in Mate

Hello there,

using CentOS7 with Mate desktop.. when I run gnome apps, the mate look
doesn't apply to them. Say that my mate theme is dark. I've even logged
in my user in Gnome, set a dark theme too. But back to Mate, Gnome apps
are still light-grey (default theme). Is there a gnome-settings daemon
to start or what?

Tk and Qt apps get the right (dark) theme automagically, BTW.


Acroread9 crash in CentOS7


I'm getting a crash with acroread on my CentOS7 (AdobeReader_enu-9.5.5-1.i486).
I install the official rpms from <a href="" title=""></a>,
tried 9.5.5, and former v9, v8, v7.

/usr/bin/acroread loads well, but when you click a menu, bang.

centos7: looking for libwebpdemux

Hello there,

I'm looking for, possibly 0.4.x. I had it installed on
my CentOS6, from EPEL, but now on CentOS7, EPEL doesn't provide it at
all. Anybody knows about it? Maybe a rpm rebuild would do it?


What RH-like on a Dell XPS 15 (9590)?

Hello there,

I've just got a Dell XPS 15 (9590) at work and need to set up a stable
GNU/Linux system on it. I thought of CentOS7, but.. obviously its
kernel can't run on this hardware.

What would you recommend? Waiting for CentOS8 is not an option unless
it's a question of few weeks. Are there respins of the CentOS7 DVDs w/
more top-recent kernels? I'm know of Fedora 26 or course, and not
willing to switch to Ubuntu 16.10 at all.


CentOS 6: cannot open gnome-session

Hello there,

trying to open Session settings in GNOME's System/Preferences, I get
this error:

Error opening current splash image.

The current splash image filename is:

I get this exact same error on 2 different CentOS 6 systems
On both systems, /usr/share/pixmaps/splash/ does not exist.

Did anybody already face that issue?

Creating the missing file (out of any .png) doesn't solve the problem:
I don't get the error anymore but the Session setting never open.


CentOS6: devhelp search misses most of GTK+ 2 API functions

Hello there,

a long-standing issue I have here and that I'm decided to get rid of
now: in the devhelp, most of the GTK+ functions are not found by the
search tab: it will find gtk_icon fonctions but no gtk_widget or
gtk_color_button, gtk_label etc. Also, it will find GtkVbox item but no
gtk_vbox_new, GtkWidget but no gtk_widget function, for instance.

The docs are there (gtk-doc, gtk2-devel-docs), since I can find all
those API elements by browsing the GTK+ 2 Reference Manual from the
Contents tab.

Is this really how it should be?


Mingw gcc 6.x on CentOS6?

Hello there!

I'm stuck here on my CentOS6 w/ current EPEL's version of mingw32/64 gcc
(4.9.2), jealous about the Ubuntu's 5.3.0 version and even more jealous
about Fedora 24's top-recent 6.1.0.. and now I need msvcr120.dll
compatibility (provided by gcc 6.1.0).

Has anybody any experience w/ recompiling Fedora's 24 mingw RPMs or
another way to get the latest gcc cross-compiler from mingw on such
CentOS6? Any advice?


After restart, user's gnome autostart seems broken

Hello there,

CentOS6.7 64-bit up-to-date running on my laptop.. This night I had to
restart (did it properly).

Bonding wired and wireless ifaces

Hello all,

I'm wondering if there's any interest in trying to bond em1 and eth0
(respectively wired and wireless interfaces here), and if any, how to
do it in CentOS6.

I've found this, which could possibly help (but I'm failing yet):
<a href="" title=""></a>
<a href="" title=""></a>
Both are dealing w/ ifenslave.

Any experience or point of view on this topic?

For now, and without any change to the CentOS network config, I have my
wired and wireless ifaces up at the same time, same IP (thanks for the
DHCP config running on my router), but apparently only

Broadcom BCM4313 support broken with kernel


I noticed that with latest kernel (,
my laptop's Wifi doesn't work, whereas with previous kernel
(, it works fine.

Is this a known issue or did I miss something new?

BTW, `lspci` says:
Broadcom Corporation BCM4313 802.11bgn Wireless Network Adapter (rev 01)


linux on a PPC (mac mini)

Hello there,

complete off-topic, sorry about this, but my former idea was to install
a CentOS on an old mac mini (PPC!). Disappointed to see that PowerPC is
not a supported architecture and that non ARM or Intel architecture are
not managed by recent distros.. :-(.

Searching the web, I see very few possibilities to install a recent (I
need gnome2) GNU/Linux distro on such hardware.

CentOS6: ntfs-3g and writing utf-8 filenames

Hello there,

I know this has been widely discussed over the net, but I still can't
find a way to write a file whose name contains accented characters in ntfs-3g
partitions that are automatically mounted on my CentOS6 system.

Whatever my locale is POSIX, en_US or en_US.utf8, I always get a:

Invalid or incomplete multibyte or wide character

error when I attempt to create a directory or a file when the name
contains an accented char.

I tried remounting manually the ntfs-3g partition using -o utf8 (and
older variants: iocharset= and nls=), but it doesn't work better.

My ntfs-3g disks are

Red Hat Developer Toolset 3 for CentOS6?

Hi all,

I could find the 1.1 and 2 repos gently provided by Tru Huynh, but quid
of a v3 of the toolset?

I've just found that Qt 5.4 requires what's shipped in this v3 (gcc
4.9.1, binutils 2.24) and would prefer installing those from a repo. If
not, the sources will rule.

Any hint?


NTFS-3g from EPEL doesn't work here, older one from PUIAS does

Hello there,

here on my CentOS 6 (up-to-date), since a recent update of the NTFS
modules to ntfs-3g-2014.2.15-6 from EPEL repo, mounting my NTFS
partitions simply doesn't work ("NTFS signature is missing").

Back to puias' 2011.4.12-5.puias6 and it works again. Such issue
observed on several CentOS systems, while upgrading to 6.6.

Did I miss something? I browsed the web and RH's bug tracker but found
nothing yet.


Upgrade to CentOS6.6: mpich dep error

Hello there,

I'm checking if I can upgrade safely from CentOS6.5 to 6.6 using yum,
and here's what it says:

--> Finished Dependency Resolution
--> Running transaction check
---> Package kernel.x86_64 will be erased
---> Package kernel-devel.x86_64 will be erased
---> Package mpich2.x86_64 0:1.2.1-2.3.el6 will be obsoleted
--> Processing Dependency: for package: hdf5-mpich2-1.8.5.patch1-7.el6.x86_64
--> Processing Dependency: for package: hdf5-

CentOS6: sound prefs, how to limit output volume to the un-amplified range?

Hello there,

recently installed CentOS6 on a (quite old) 64-bit system, and from the
GNOME's sound preference app, I can see that the Output volume range is
said "amplified" from 63% to 100%. Below 63% it's unamplified.

No idea what's implied behind this amplification (I don't see this on
other desktops), but I notice that when "amplified" the sound is pretty
bad (at 100% and above, it's ridiculously bad). Below 63% it's simply
very good and from far, loud enough.

I wonder if there's a way to make the amplified range (63-100+)

CentOS to reside near a NTFS system

Hello there,

the *old* PC (Turion 64 MT-32 800MHz, 1Gb RAM) of my gf is running
Windows XP, and I plan on installing a CentOS beside of it, allowing
her to select the OS at boot-time. Other system/OS installing options
are not retained, please avoid ;-).

My first attempt was to install the CentOS7 GNOME-Live on a USB
flashdisk and to boot it on the machine. It was either freezing at grub
stage (!?) or later at GDM login stage. I gave up.

Then I installed the CentOS6 LiveCD on the USB flashdisk, and booted in
on the machine.

How to enable sound for other users but the one who owns the current session

Hello there!

I'm trying to get sound from applications running from other users bug
the one who owns the current GNOME sessions.

Typically, my default user is "A" and he's running the GNOME session,
logged in graphically. From this session, I open terminals, su to other
users (B or C, non-root) and run mplayer or firefox. No sound for these.

Adding those users to the "audio" group didn't help. Any idea how to do