[DNG] Devuan on Raspberry Pi 3B+. Sound card driver installation.

2019-03-16 Thread Edward Bartolo via Dng
Searching for installed kernel modules using locate I found the actual
modules for the DAC are installed. However, using modprobe did not
result in the modules being loaded. Modprobe complained with the
error:

modprobe: FATAL: module name not found in directory /lib/modules/4.16.12-v8+

After that I used depmod to create the necessary module dependencies,
but failed again to successfully load the modules.

To arrive at the this point I consulted the IQaudIO manual for the DACs.
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Re: [DNG] Devuan on Raspberry Pi 3B+. Sound card driver installation.

2019-03-15 Thread al3xu5 / dotcommon
Il giorno giovedì 14/03/2019 23:23:52 +0100
Edward Bartolo  ha scritto:

> I have a raspberry Pi with a Pi DAC Pro sound for which there is no
> driver installed. Searching online takes me to readily prepared
> operating system images that I do not want to use as I am using
> Devuan. Does anyone know what I should do to be able to use the Pi DAC
> Pro sound card under Devuan? 

I think the 1st thing is the ALSA setup.

Configuration files are:
~/.asoundrc
/etc/modprobe.d/alsausb.conf


I have a barebone computer working as audio server, with an external Audiolab
DAC connected via USB:

~~~
$ cat /proc/asound/cards
 0 [MDAC ]: USB-Audio - Audiolab M-DAC
Lakewest Audio Audiolab M-DAC at usb-:00:1d.0-1.6, full
speed
 1 [HDMI ]: HDA-Intel - HDA Intel HDMI
HDA Intel HDMI at 0xf7d0 irq 43
$ lsusb
...
Bus 001 Device 004: ID 0451:adac Texas Instruments, Inc. 
...
~~~

As an example of what your setup might be, here is my ~/.asoundrc :

~~~
pcm.!default{
  type plug
  slave {
pcm "hw:0,0"
channels 2
  }
}
~~~

and, using a usb connection, my /etc/modprobe.d/alsausb.conf :

~~~
# ALSA portion
options snd cards_limit=2
alias snd-card-0 snd-usb-audio
alias snd-card-1 snd-hda_intel
options snd-usb-audio index=0
options snd-hda_intel index=1
# OSS/Free portion
alias sound-slot-0 snd-usb-audio
alias sound-slot-1 snd-hda-intel
~~~

There are also a lot of system optimization you can do if you want you machine
being a better bit-perfect real-time audio...


Anyway, other setup is required if you are using a software audio server.
I have mpd running, and here (as na example) is the content of my mpd
configuration file /ect/mpd.conf (the DAC setup is in the
`audio_output`section) :

~~~
# Files and directories ###
## music directory: local files
music_directory "/media/AUDIO/AudioHiFi"
## playlist directory
playlist_directory  "/home/mmusr/.mpd/playlists"
## other
db_file "/home/mmusr/.mpd/database"
log_file"/var/log/mpd/mpd.log"
sticker_file"/home/mmusr/.mpd/sticker.sql"
pid_file"/tmp/mpd.pid"
state_file  "/tmp/mpd.state"

# General music daemon options 
## user / group that MPD will run as
user"mpdusr"
## Network
bind_to_address "localhost"
port"6600"
## Other daemon settings
log_level   "default"
restore_paused  "yes"
auto_update "no"
state_file_interval "300"

# Symbolic link behavior ##
#
# following symbolic links outside of the configured music_directory
#follow_outside_symlinks"yes"
# following symbolic links inside of the configured music_directory
#follow_inside_symlinks "yes"

# Zeroconf / Avahi Service Discovery ##
zeroconf_enabled"no"

# Input ###
input {
plugin "curl"
}

# Audio Output 
## ALSA output 
audio_output {
type"alsa"
name"MDAC"
device  "hw:0,0"
mixer_type  "none"
replay_gain_handler "none"
dsd_usb "no"
auto_resample   "no"
auto_channels   "no"
auto_format "no"
}

# Character Encoding ##
filesystem_charset  "UTF-8"
id3v1_encoding  "UTF-8"

# Playlist plugins 
playlist_plugin {
name "cue"
enabled "yes"
}
playlist_plugin {
name "embcue"
enabled "yes"
}
playlist_plugin {
name "flac"
enabled "yes"
}
playlist_plugin {
name "m3u"
enabled "yes"
}
playlist_plugin {
name "extm3u"
enabled "yes"
}
playlist_plugin {
name "rss"
enabled "yes"
}
~~~

Obviously, you should refer to *your* specific hardware and software
configuration, having a closer look to the ALSA (and MPD if used) documentation.

Hope it helps.
Regards



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Re: [DNG] Devuan on Raspberry Pi 3B+. Sound card driver installation.

2019-03-15 Thread Dimitris via Dng
don't use any sound on rpi, but some searching online, pointed here :
http://www.iqaudio.com/downloads/IQaudIO.pdf
(check p.31. )


On 3/15/19 12:23 AM, Edward Bartolo via Dng wrote:
> I have a raspberry Pi with a Pi DAC Pro sound for which there is no
> driver installed. Searching online takes me to readily prepared
> operating system images that I do not want to use as I am using
> Devuan. Does anyone know what I should do to be able to use the Pi DAC
> Pro sound card under Devuan? VolumeIO, a strongly suggested OS, badly
> smells of a software lock-in, something I really want to avoid as I
> have already experienced it when I used Delphi under MS Windows.
> 
> Thanks.
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[DNG] Devuan on Raspberry Pi 3B+. Sound card driver installation.

2019-03-14 Thread Edward Bartolo via Dng
I have a raspberry Pi with a Pi DAC Pro sound for which there is no
driver installed. Searching online takes me to readily prepared
operating system images that I do not want to use as I am using
Devuan. Does anyone know what I should do to be able to use the Pi DAC
Pro sound card under Devuan? VolumeIO, a strongly suggested OS, badly
smells of a software lock-in, something I really want to avoid as I
have already experienced it when I used Delphi under MS Windows.

Thanks.
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[DNG] Devuan on Raspberry Pi

2019-03-14 Thread Edward Bartolo via Dng
-- 
If you can't explain it simply, you don't understand it well enough.
(Albert Einstein)
If you cannot make abstructions about details you do not understand
the concepts underlying them.
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Re: [DNG] Devuan on Raspberry Pi 2

2018-09-16 Thread J. Fahrner

I found a way that seems ok:
I installed Raspbian Stretch and migrated it to Devuan Ascii.
The package raspberrypi-kernel is in 
"http://archive.raspberrypi.org/debian/ stretch main", so i left this in 
my sources list, but pinned it with priority 200, so no other packages 
are installed by accident.


Another way to update bootloader and kernel is through rpi-update.

At the moment all is working ok.

Am 2018-09-16 15:52, schrieb J. Fahrner:

Hi,
I dd'ed devuan_ascii_2.0.0_armhf_raspi2.img on sd card for my
Raspberry Pi 2 model B, but it does not boot. No action, black screen.
Are here any experiences with that model?

In the past I installed Raspbian Jessie and migrated that to Devuan,
but this no longer works because they changed installation of kernel
with Stretch. In Jessie bootloader and kernel were in a separate
section of repository (rpi) and could also be upgraded in parallel to
Devuan repositories. But in Stretch it appears kernel and bootlader
are in the main section, so they no longer get updates when switching
to Devuan repositories.

Are there packages for the Raspberry Pi kernel and bootloader also in
Devuan repositories? If yes, what are the correct package names?

Jochen
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[DNG] Devuan on Raspberry Pi 2

2018-09-16 Thread J. Fahrner

Hi,
I dd'ed devuan_ascii_2.0.0_armhf_raspi2.img on sd card for my Raspberry 
Pi 2 model B, but it does not boot. No action, black screen. Are here 
any experiences with that model?


In the past I installed Raspbian Jessie and migrated that to Devuan, but 
this no longer works because they changed installation of kernel with 
Stretch. In Jessie bootloader and kernel were in a separate section of 
repository (rpi) and could also be upgraded in parallel to Devuan 
repositories. But in Stretch it appears kernel and bootlader are in the 
main section, so they no longer get updates when switching to Devuan 
repositories.


Are there packages for the Raspberry Pi kernel and bootloader also in 
Devuan repositories? If yes, what are the correct package names?


Jochen
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Re: [DNG] Devuan on Raspberry Pi

2017-02-06 Thread Jochen Fahrner
Am 06.02.2017 um 12:11 schrieb Jaromil:
> The main reasons why Devuan acts like Debian in this case is that in
> Jessie we only operate to remove systemd, nothing else changes, while
> we still rely heavily on Debian for the bulk of binary builds.
>

Ok, I see it's Debians fault for the improper architecture
classification. VFP exists since ARMv5, but Debian decided to use VFP on
ARMv7 and above.
https://www.arm.com/products/processors/technologies/vector-floating-point.php

Are there any experiences what the impact on performance is, using
softfloat on a headless internet server box serving mainly files (smb,
http, ftp), doing no mathematic computations? Is FP used in encryption
technologies (ssl)?

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Re: [DNG] Devuan on Raspberry Pi

2017-02-06 Thread Jaromil

dear Jochen,

tl;dr - just like Debian does, we do recommend using Raspian on rpi1
boards version 1 to take full advantage of their rather strange
architecture.

> On Mon, Feb 06, 2017 at 11:18:41AM +0100, Jochen Fahrner wrote:
> 
> [cut]
> 
> > 
> > The only option I have: install from scratch with Devuans "armel" Image.
> > But this is not really an option,  I will loose hardfloat, making my PI
> > even more slower than it already is. So I stay with Raspbian Jessie.
> > 

On Mon, 06 Feb 2017, KatolaZ wrote:
> I agree that we might decide to have an armv6+VFP2 Devuan image for
> rpi, but please do not call it armhf, since the price would be
> increasing the amount of confusion already made by Raspbian.

I was indeed surprised to read an rpi1 is 'armhf' platform.  Thanks
Katolaz and others for clarifying, did recall some discussion about
this in the past but lacked the details.

The main reasons why Devuan acts like Debian in this case is that in
Jessie we only operate to remove systemd, nothing else changes, while
we still rely heavily on Debian for the bulk of binary builds.

the Devuan installers for embedded architectures are all here
https://files.devuan.org/devuan_jessie_beta/embedded/

ciao

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Re: [DNG] Devuan on Raspberry Pi

2017-02-06 Thread KatolaZ
On Mon, Feb 06, 2017 at 11:18:41AM +0100, Jochen Fahrner wrote:

[cut]

> 
> The only option I have: install from scratch with Devuans "armel" Image.
> But this is not really an option,  I will loose hardfloat, making my PI
> even more slower than it already is. So I stay with Raspbian Jessie.
> 

I agree that we might decide to have an armv6+VFP2 Devuan image for
rpi, but please do not call it armhf, since the price would be
increasing the amount of confusion already made by Raspbian.

My2Cents

KatolaZ

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Re: [DNG] Devuan on Raspberry Pi

2017-02-06 Thread KatolaZ
On Mon, Feb 06, 2017 at 11:18:41AM +0100, Jochen Fahrner wrote:
> Am 06.02.2017 um 09:22 schrieb KatolaZ:
> > Like, for the same reason why you use packages compiled for amd64 with
> > your shiny Intel i5, despite you could have used packages compiled for
> > an i486 back in 1994? :)
> >
> 
> That's exactly the point. Nobody comes up with the idea to compile
> packages for the Intel platform only for the newest shiny Corie i7. So
> why do Devuan compile for ARMv7?
> 
> Raspbian made the decision to divide into architecture "armel" (PI 1A) 
> and "armhf" (PI 1B and later). So Devuan should do the same. If not, it
> comes to problems like mine: migrating from Raspbian Jessie with
> architecture "armhf" ends in segmentation faults on many PIs.

According to your reasoning then , since Raspbian decided to go for
systemd, Devuan should also do the same, right? :) And what happens if
Arch decides to move to a BSD kernel? Shall Devuan move there as well?

The real problem is that the "armhf" used in Raspbian is not a proper
armhf, but an armv6+VFP2. And it is *not* armhf since by armhf we (in
the De??an world) normally indicate armv7:

  https://www.debian.org/ports/arm/

And you will notice it immediately if you start using the vanilla
Debian armhf release on your rpi, since Debian's armhf is a proper
armv7 build. You will get in fact the same segfaults you get with the
Devuan repos.

The mistake was done by Raspbian, when they used "armhf" to indicate a
port that is different from what "armhf" really means in Debian. The
fact that they made a mistake does not mean that it should be
perpetrated down for generations, IMHO.

My2Cents

KatolaZ

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Re: [DNG] Devuan on Raspberry Pi

2017-02-06 Thread Jochen Fahrner
Am 06.02.2017 um 09:22 schrieb KatolaZ:
> Like, for the same reason why you use packages compiled for amd64 with
> your shiny Intel i5, despite you could have used packages compiled for
> an i486 back in 1994? :)
>

That's exactly the point. Nobody comes up with the idea to compile
packages for the Intel platform only for the newest shiny Corie i7. So
why do Devuan compile for ARMv7?

Raspbian made the decision to divide into architecture "armel" (PI 1A) 
and "armhf" (PI 1B and later). So Devuan should do the same. If not, it
comes to problems like mine: migrating from Raspbian Jessie with
architecture "armhf" ends in segmentation faults on many PIs.

The only option I have: install from scratch with Devuans "armel" Image.
But this is not really an option,  I will loose hardfloat, making my PI
even more slower than it already is. So I stay with Raspbian Jessie.

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Re: [DNG] Devuan on Raspberry Pi

2017-02-06 Thread KatolaZ
On Mon, Feb 06, 2017 at 06:32:54AM +0100, J. Fahrner wrote:
> Am 05.02.2017 um 22:34 schrieb KatolaZ:
> > Because that image is an armv6 + hard float, so it works
> > everywhere. 
> >
> >
> 
> So why are the Devuan Images not compiled the same way?
> 

Like, for the same reason why you use packages compiled for amd64 with
your shiny Intel i5, despite you could have used packages compiled for
an i486 back in 1994? :)

HND

KatolaZ

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Re: [DNG] Devuan on Raspberry Pi

2017-02-05 Thread J. Fahrner
Am 05.02.2017 um 22:34 schrieb KatolaZ:
> Because that image is an armv6 + hard float, so it works
> everywhere. 
>
>

So why are the Devuan Images not compiled the same way?

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Re: [DNG] Devuan on Raspberry Pi

2017-02-05 Thread KatolaZ
On Sun, Feb 05, 2017 at 10:02:21PM +0100, J. Fahrner wrote:

[cut]

> 
> But thats without hardfloat. What I need is ARMv6 with hardfloat. I'm
> wondering why Raspbian has only one Image that works with all. How do
> they do that?
> https://www.raspberrypi.org/downloads/
> 

Because that image is an armv6 + hard float, so it works
everywhere. 

HND

KatolaZ

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Re: [DNG] Devuan on Raspberry Pi

2017-02-05 Thread Florian Zieboll
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA256


On Sun, 5 Feb 2017 22:02:21 +0100
"J. Fahrner"  wrote:

> But thats without hardfloat. What I need is ARMv6 with hardfloat. I'm
> wondering why Raspbian has only one Image that works with all. How do
> they do that?
> https://www.raspberrypi.org/downloads/


The images contain both, the ARMv6 and the ARMv7 kernel... regarding
the userspace software, I just had a look at the Raspbian FAQ, where is
written that 

  "The packages are being compiled for the ARMv6+VFP CPU. If the
  hardware supports that CPU feature set then Raspbian should function
  well on that hardware." [1]

Libre Grüße,

Florian


[1] 
http://raspbian.org/RaspbianFAQ#Will_Raspbian_work_with_non-Raspberry_Pi_systems.3F

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Re: [DNG] Devuan on Raspberry Pi

2017-02-05 Thread J. Fahrner
Am 05.02.2017 um 18:58 schrieb Florian Zieboll:
>
> "Raspbian armhf" is a special build for rpi1: ARMv6 with hardfloat
> support. This is the actual reason for Raspian's existence, as the
> common "armhf" builds are compiled for ARMv7.

ok, that explains the segmentation faults on my PI1 model B.

>
> If you don't want to use Raspbian, you'll need to go for the armel
> build:
>
> https://files.devuan.org/devuan_jessie_beta/embedded/devuan_jessie_1.0.0-beta2_armel_raspi1.img.xz

But thats without hardfloat. What I need is ARMv6 with hardfloat. I'm
wondering why Raspbian has only one Image that works with all. How do
they do that?
https://www.raspberrypi.org/downloads/


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Re: [DNG] Devuan on Raspberry Pi

2017-02-05 Thread Florian Zieboll
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA256

On Sun, 5 Feb 2017 18:36:29 +0100
"J. Fahrner"  wrote:

> Strange. Mine is a PI 1 Model B. (armhf architecture). Maybe the
> current packages are not compatible with that? But original Raspbian
> Jessie (armhf) works fine. Only Devuan has segmentation faults.


"Raspbian armhf" is a special build for rpi1: ARMv6 with hardfloat
support. This is the actual reason for Raspian's existence, as the
common "armhf" builds are compiled for ARMv7.

If you don't want to use Raspbian, you'll need to go for the armel
build: 

https://files.devuan.org/devuan_jessie_beta/embedded/devuan_jessie_1.0.0-beta2_armel_raspi1.img.xz

Florian
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Re: [DNG] Devuan on Raspberry Pi

2017-02-05 Thread KatolaZ
On Sun, Feb 05, 2017 at 05:51:54PM +0100, J. Fahrner wrote:
> Hello,
> 
> has someone had success in installing Devuan on Raspberry Pi?
> 
> My first attempt was to upgrade from Raspbian Wheezy following this guide:
> 
> https://git.devuan.org/dev1fanboy/Upgrade-Install-Devuan/wikis/Upgrade-to-Devuan
> 
> Did not work, segmentation fault in some package installation script.
> 
> Next try: installed image from Devuan downloads to SD card. Did not
> boot. :-(

Hi,

I have been using the latest Devuan Beta 2 rpi images:

   https://files.devuan.org/devuan_jessie_beta/embedded/

on a rpi-zero (raspi1), a rpi-2 (raspi2), and a rpi-3 (raspi3) for
several weeks now, and all of them work seamlessly. You can have
problems when you try to upgrade a rpi from Raspbian, since Raspbian
has made a lot of confusion with architecture names. Go with the
genuine images, and select the correct ones for your pi model, since
the three available ones are different (raspi1 is armel, raspi2 is
armhf, and raspi3 is arm64).

My2Cents

KatolaZ

-- 
[ ~.,_  Enzo Nicosia aka KatolaZ - GLUGCT -- Freaknet Medialab  ]  
[ "+.  katolaz [at] freaknet.org --- katolaz [at] yahoo.it  ]
[   @)   http://kalos.mine.nu ---  Devuan GNU + Linux User  ]
[ @@)  http://maths.qmul.ac.uk/~vnicosia --  GPG: 0B5F062F  ] 
[ (@@@)  Twitter: @KatolaZ - skype: katolaz -- github: KatolaZ  ]
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Re: [DNG] Devuan on Raspberry Pi

2017-02-05 Thread Hendrik Boom
On Sun, Feb 05, 2017 at 06:36:29PM +0100, J. Fahrner wrote:
> 
> 
> Am 05.02.2017 um 18:23 schrieb Florian Zieboll:
> >
> >
> > Both ways it worked like a charm.
> >
> 
> Strange. Mine is a PI 1 Model B. (armhf architecture). Maybe the current
> packages are not compatible with that? But original Raspbian Jessie
> (armhf) works fine. Only Devuan has segmentation faults.

Interesting.  Just what are the differences between Raspian and Debian?
Does Debian also segfault?  If not, perhaps it's worth seeing if the 
changes from Debian to Raspian need to be applied to Devuan to produce 
Raspuan?

-- hendrik
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Re: [DNG] Devuan on Raspberry Pi

2017-02-05 Thread J. Fahrner


Am 05.02.2017 um 18:23 schrieb Florian Zieboll:
>
>
> Both ways it worked like a charm.
>

Strange. Mine is a PI 1 Model B. (armhf architecture). Maybe the current
packages are not compatible with that? But original Raspbian Jessie
(armhf) works fine. Only Devuan has segmentation faults.

-- 
Mit besten Grüßen
Joachim Fahrner

PGP-Key: http://www.fahrner.name/JoachimFahrner.asc
---
Es gibt keine Cloud. Es ist nur der Computer eines Anderen.

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Re: [DNG] Devuan on Raspberry Pi

2017-02-05 Thread Florian Zieboll
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA256


On Sun, 5 Feb 2017 17:51:54 +0100
"J. Fahrner"  wrote:

> has someone had success in installing Devuan on Raspberry Pi?

I have Devuan armhf running on a rpi2, installed from the first Beta image - 
here
the link to my li'l HOWTO [1].

Some time before, I had installed Devuan using the raspbian-ua-netinst
image for a minimal Raspian Wheezy installation, which I then upgraded to
Devuan Jessie, see link [2]. As of raspbian-ua-netinst v1.0.8.1, the
default release has changed to Jessie and thus the following line would have to 
be
added the the file config.txt in the root of the image: 

release=wheezy

Both ways it worked like a charm.

libre Grüße,

Florian


[1] https://cheatsheet.zwischenspeicher.info/2016/05/11-2016-05-05/  
[2] https://lists.dyne.org/lurker/message/20150805.163347.dcffacec.en.html


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Re: [DNG] Devuan on Raspberry Pi

2017-02-05 Thread etech3

On 02/05/2017 11:51 AM, J. Fahrner wrote:
[snip]

has someone had success in installing Devuan on Raspberry Pi?
Havn't gotten around to Pi yet, But did have a Acer laptop with no 
cd/dvd. I installed from a external usb cd/dvd, and I copyies the beta2 
iso to usb and installed that way.


justmy2cents
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[DNG] Devuan on Raspberry Pi

2017-02-05 Thread J. Fahrner
Hello,

has someone had success in installing Devuan on Raspberry Pi?

My first attempt was to upgrade from Raspbian Wheezy following this guide:

https://git.devuan.org/dev1fanboy/Upgrade-Install-Devuan/wikis/Upgrade-to-Devuan

Did not work, segmentation fault in some package installation script.

Next try: installed image from Devuan downloads to SD card. Did not
boot. :-(

Next try: installed Raspbian Jessie, than migrate to Devuan following
same guide. Again, segmenatation fault in some script.

Last try: installed Raspbian Jessie, then "apt-get dist-upgrade" to
latest Debian version, then migrate to Devuan using same guide again.
And again: segmenation fault.

Preconfiguring packages ...
(Reading database ... 31298 files and directories currently installed.)
Preparing to unpack .../bash_4.3-11+deb8u1_armhf.deb ...
dpkg: error processing archive 
/var/cache/apt/archives/bash_4.3-11+deb8u1_armhf.deb (--unpack):
 subprocess new pre-installation script was killed by signal (Segmentation 
fault)
update-alternatives: using /usr/share/man/man7/bash-builtins.7.gz to provide 
/usr/share/man/man7/builtins.7.gz (builtins.7.gz) in auto mode
Errors were encountered while processing:
 /var/cache/apt/archives/bash_4.3-11+deb8u1_armhf.deb
E: Sub-process /usr/bin/dpkg returned an error code (1)

Very frustrating. I give up. :-(


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Re: [DNG] Devuan on Raspberry Pi 2B

2015-08-06 Thread Florian Zieboll

Hello again,

just a hint for the resolute ones among us, as I think this hasn't been
mentioned on this list yet: Adding the following lines to e.g. the file 
/etc/apt/preferences.d/avoid-systemd should make ultimately sure, that
libsystemd0 will not be accidentally pulled in by some felted package: 

Package: libsystemd0
Pin: release o=Debian
Pin-Priority: -1

Unfortunately apt does not handle this transparently, when failing to
install some distant systemd dependant, but reports an unfixable
dependency problem – pointing only at the very next dependency in the
chain down to libsystemd0.

The complete explained list of possible apt pin-priority categories
from <0 to >1000 you can find in the apt_preferences(5) manpage.

Florian
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Re: [DNG] Devuan on Raspberry Pi 2B

2015-08-05 Thread Rainer Weikusat
Florian Zieboll  writes:

[...]

> check for systemd:
>   # apt-get install aptitude
>   # aptitude search '?installed' | grep systemd
>   #

JFTR: dpkg -l will give you a list of installed packages and their
descriptions so

dpkg -l | grep systemd

or

dpkg -l | grep -i systemd

should work for this, too.

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[DNG] Devuan on Raspberry Pi 2B

2015-08-05 Thread Florian Zieboll
Hello!

I just installed Devuan armhf on a headless Raspberry Pi 2 Model B,
using the raspian-ua-netinst image. The upgrade from this tiny Debian
Wheezy to Devuan Jessie /just worked/ - installing task-lxde-desktop
pulled in libsystemd0 as dependency of some "less essential" and easy
to remove packages, see below. 

This is what I did:

Raspberry Pi 2 Model B, ethernetted.

1) get raspbian-ua-netinst-v1.0.7.img.xz from 
   https://github.com/debian-pi/raspbian-ua-netinst/releases/ 
2) xzcat image to sdcard
3) check installer‑config.txt -> release=wheezy
4) boot sdcard -> ~10 min unattended netinstall procedure
5) ssh r...@pi.lan


### NOW LOGGED IN as r...@pi.lan ###

basic configuration:
  # dpkg-reconfigure locales
  # dpkg-reconfigure tzdata

edit /etc/apt/sources.list to contain only the line
  deb http://apt.devuan.org/merged stable main

manually deploy the changes from the (currently broken) devuan-baseconf
package http://packages.devuan.org/devuan/pool/main/d/devuan-baseconf/
to
  /etc/apt/preferences.d/
  and
  /etc/apt/apt.conf.d/

first apt-get update returns a warning about the missing apt
signing-key, so get the key (please verify key-id yourself): 
  # gpg && gpg --recv-keys 94532124541922FB
  # gpg --export -a 94532124541922FB | apt-key add -

go devuan:
  # apt-get update
  # apt-get upgrade
  # apt-get dist-upgrade

check for systemd:
  # apt-get install aptitude
  # aptitude search '?installed' | grep systemd
  #

:-)

go gui:
  # apt-get install debfoster && debfoster
  # apt-get install task-lxde-desktop xrdp

(Now graphical remote/rdp login is possible.)

check for systemd:
  # aptitude search '?installed' | grep systemd
  i A libsystemd0- systemd utility library

  # dpkg -P libsystemd0
  dpkg: dependency problems prevent removal of libsystemd0:armhf:
   packagekit depends on libsystemd0.
   sane-utils depends on libsystemd0.
   gnome-disk-utility depends on libsystemd0.
   libpulse0:armhf depends on libsystemd0.
   gvfs-daemons depends on libsystemd0.
   pulseaudio depends on libsystemd0.
   
  dpkg: error processing libsystemd0 (--purge):
  dependency problems - not removing
  Errors were encountered while processing:
  libsystemd0

  # apt-get remove libsystemd0
  Reading package lists... Done
  Building dependency tree   
  Reading state information... Done
  The following packages will be REMOVED:
ca-certificates-java default-jre default-jre-headless gimp
gnome-disk-utility gnome-mplayer gnome-orca gvfs gvfs-backends
gvfs-daemons gvfs-fuse icedtea-7-jre-jamvm libasound2-plugins
libespeak1 libfluidsynth1 libgegl-0.2-0 libgmlib1 libgmtk1
libmikmod3 libpulse-mainloop-glib0 libpulse0 libpulsedsp
libsdl-image1.2 libsdl-mixer1.2 libsdl-ttf2.0-0 libsdl1.2debian
libsmpeg0 libsystemd0 mplayer2 openjdk-7-jre openjdk-7-jre-headless
packagekit packagekit-tools pulseaudio pulseaudio-module-x11
pulseaudio-utils python-pygame sane-utils speech-dispatcher
speech-dispatcher-audio-plugins 
  0 upgraded, 0 newly installed, 40 to remove and 0 not upgraded. 
  After this operation, 109 MB disk space will be freed.
  Do you want to continue? [Y/n]

Yes, I want... To have sound working w/o PulseAudio, unprivileged users
need to be added to the "audio" group. That's it :-)

I'll report back after further testing. Hooray Devuan!

With kind regards,

Florian
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