Ask Ubuntu General Room

Journeyman Geek

00:00

lol

funny thing? Both my cables are yellow

Journeyman Geek

00:14

tho, thankfully not this yellow cable

Nathan Osman

@hbdgaf I have a 300 Watt PSU right now and no video card. I figured I'd get a 700 Watt before throwing a video card in.

RPi Awesomeness

00:28

Anyone able to help me with this? raspberrypi.stackexchange.com/questions/12946/…

Journeyman Geek

@RPiAwesomeness: could you give me the output for lsusb? also, is this a text only install?

RPi Awesomeness

@JourneymanGeek Yes, text only. Vanilla Arch...lsusb coming

All of it, or just the edimax one?

Journeyman Geek

just the edimax one

RPi Awesomeness

Bus 001 Device 005: ID 7392:7011 Edimax Technology Co., Ltd EW-7811Un 802.11n Wireless Adapter (Realtek RTL8180CUB (or CUS - not sure))

I have a really crappy screen

Braiam

@RPiAwesomeness ssh ftw?

RPi Awesomeness

00:34

I can't. No WiFI access on the Pi

that's what I'm trying to get up right now

Journeyman Geek

realtek is usually supported on the kernel

so... tried just setting up /etc/networks?

RPi Awesomeness

No...how would I do that?

raspberrypi.stackexchange.com/questions/12946/… Would this work?

Seth

@RPiAwesomeness Probably.

That's the install command.. so I don't know what you mean by "key presses" afterward.

RPi Awesomeness

Kdoke. Waiting for reply...

Like entering 'Y' or pressing Enter

Journeyman Geek

hmm

mind if I start from the start?

Seth

00:44

@RPiAwesomeness Oh, I think it's set to assume yes.. Why?

Journeyman Geek

does the device show up in ifconfig?

RPi Awesomeness

@JourneymanGeek I don't think it does. I'm going to try the solution here: raspberrypi.stackexchange.com/questions/12946/…

and get back to him...BRB

Seth

@RPiAwesomeness Just try the command. After looking it up, you might have to press y but it should work.

I can help get it set up from there, I've done this before.

(granted, it wasn't on Arch.. but it should be similar.)

RPi Awesomeness

@Seth It's doing somethin currently...

LNK light is flashing...

Seth

Okay. Are you installing via Ethernet?

RPi Awesomeness

00:54

Yeah. Can't believe I didn't think of this, but I could hook the Pi up via Ethernet and then SSH in. DUH!!! facepalm

Seth

Oh, so you aren't going to set up wireless after all?

RPi Awesomeness

@Seth Yes I am, but the setup for the wireless will be a lot easier :P

About 50% now

Seth

Oh cool.

Braiam

23 mins ago, by Braiam

@RPiAwesomeness ssh ftw?

sighs

RPi Awesomeness

:)

precisely... /me FACEPALM

Seth

01:04

How we doing now @RPiAwesomeness ?

RPi Awesomeness

@Seth Downloaded...and then this:
DKMS: add completed.
Error! echo
Your kernel headers for kernel 3.10.18-1-ARCH+ cannot be found at
/usr/lib/modules/3.10.18-1-ARCH+/build or /usr/lib/modules/3.10.18-1-ARCH+/source.
error: command failed to execute correctly

Braiam

@RPiAwesomeness you need the kernel sources..

RPi Awesomeness

Eh?

Seth

Hmm.

I'm not familiar with pacman..

RPi Awesomeness

:P This is perturbing

Braiam

01:16

can a mod close and delete this Q? askubuntu.com/q/381804/169736

Seth

Anyone know how to search the repository in Arch?

RPi Awesomeness

aur.archlinux.org/packages/dkms-8192cu How could I use that?

Seth

@RPiAwesomeness That's not going to fix the problem.

@Braiam Is it this? aur.archlinux.org/packages/linux-api-headers-git

RPi Awesomeness

That's the driver...

Could I install it by USB?

Seth

You could, but that wouldn't fix it.

RPi Awesomeness

01:19

It wouldn't give me WiFi capabilities?

Braiam

@RPiAwesomeness did you installed the linux-headers package?

RPi Awesomeness

I don't think so....

Would I use this? 'dkms autoinstall' and blacklist rt8192cu?

Braiam

... err.. let's go step by step right?

first install the headers and dkms package

pacman -S abs base-devel dkms linux-headers

RPi Awesomeness

Which option? There are 25...

Braiam

option? aren't you ssh'ing? copy paste the stuff

RPi Awesomeness

01:26

There are 25 members in group base-devel:
:: Repository core
1) autoconf 2) automake 3) binutils 4) bison 5) fakeroot 6) file
7) findutils 8) flex 9) gawk 10) gcc 11) gettext 12) grep 13) groff
14) gzip 15) libtool 16) m4 17) make 18) pacman 19) patch
20) pkg-config 21) sed 22) sudo 23) texinfo 24) util-linux 25) which

sry

Braiam

all...

1, 2, 3, 17, 19, 20, 24 are essential

RPi Awesomeness

Enter a selection (default=all):
warning: binutils-2.23.1-3 is up to date -- reinstalling
warning: findutils-4.4.2-5 is up to date -- reinstalling
warning: gawk-4.1.0-2 is up to date -- reinstalling
warning: gcc-4.7.2-4 is up to date -- reinstalling
warning: groff-1.22.2-5 is up to date -- reinstalling
warning: gzip-1.6-1 is up to date -- reinstalling
warning: make-4.0-2 is up to date -- reinstalling
warning: patch-2.7.1-2 is up to date -- reinstalling
warning: sed-4.2.2-3 is up to date -- reinstalling

I used all

Braiam

you pressed Y right?

RPi Awesomeness

Was I supposed to? I was waiting for a response. Doing now

This might take a while.

80Kb/s connection is very slow

Seth

01:43

I have to go for now, but I should be back later today @rpi

RPi Awesomeness

Ok.

Seth

If you need help setting the next part up

Nathan Osman

I have a puzzle for anyone who is interested.

The MD5 hash of '123' is computed in Python as follows:

nathan@ubuntu-vm:~$ python
Python 2.7.3 (default, Sep 26 2013, 20:03:06)
[GCC 4.6.3] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> from hashlib import md5
>>> md5('123').hexdigest()
'202cb962ac59075b964b07152d234b70'

However, using the md5sum command in a shell yields a different value:

nathan@ubuntu-vm:~$ echo "123" | md5sum
ba1f2511fc30423bdbb183fe33f3dd0f  -

What gives?

The first person to spot the bug gets a star and is entitled to one day of bragging rights to the title "Ask Ubuntu Genius".

Mateo

The pipe?

Nathan Osman

Good guess, but no. It's not the pipe.

hbdgaf

01:51

ascii versus punicode representation of 123?

Nathan Osman

Nope. Another good guess but they are both being fed the correct ASCII characters.

hbdgaf

it's just a stab. i haven't played with it at all.

Nathan Osman

(Well, almost... that's a hint :) )

If anyone needs a hint, I can give one.

Mateo

Oh echo... Line break

2

Braiam

yup

printf 123 | md5sum
202cb962ac59075b964b07152d234b70  -

hbdgaf

01:56

sounds legit

RPi Awesomeness

@Braiam Okay...it finished

Nathan Osman

@Mateo: You win!

Good catch.

The correct line should read:

echo -n "123" | md5sum

Braiam

Y U wondering it didn't work?

hbdgaf

@JourneymanGeek you really only NEED pins 1236 right ;)

Nathan Osman

I hereby bestow the title "Ask Ubuntu Genius" on @Mateo for the duration of 24 hours.

Mateo

01:58

:)

hbdgaf

wo/o wg/b wb/g wbr/br etc etc...

@NathanOsman - best methodology for bulk import to django ORM? fixtures or something else?

Nathan Osman

Are we talking importing existing data from another Django instance?

Or importing data from a database that has nothing to do with Django?

hbdgaf

Just a massive load of raw data. CSV, json, whatever...

Seth

back

@RPiAwesomeness

RPi Awesomeness

Hey

hbdgaf

02:06

@NathanOsman i'm thinking of manipulating the data in to a fixture so imports are fast... since the import is painfully slow now, and i suspect it is because of repeatedly instantiating the model object.

Nathan Osman

I've only done importing of data I've exported from another Django instance.

RPi Awesomeness

@Braiam It completed...what now?

hbdgaf

:/ test cases it is then...

Nathan Osman

Personally, I doubt fixtures would make a huge difference, but it might be worth a try.

Braiam

@RPiAwesomeness try again?

Seth

02:06

@RPiAwesomeness What step are we at now?

RPi Awesomeness

Did that. Same error as before :P

@Seth Presumeably installing the driver, but it's still giving me an error:
DKMS: add completed.
Error! echo
Your kernel headers for kernel 3.10.18-1-ARCH+ cannot be found at
/usr/lib/modules/3.10.18-1-ARCH+/build or /usr/lib/modules/3.10.18-1-ARCH+/source.
error: command failed to execute correctly

and modprobe 8192cu returns nothing

Seth

What does ifconfig return?

hbdgaf

are you trying to build arch the dist or is it not finding an environment variable for architecture?

RPi Awesomeness

@hbdgaf I am trying to install via pacman -Sy

@Seth This is connected on Ethernet:

eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.0.104 netmask 255.255.255.0 broadcast 192.168.0.255
ether b8:27:eb:3b:a9:55 txqueuelen 1000 (Ethernet)
RX packets 38310 bytes 48792782 (46.5 MiB)
RX errors 0 dropped 5 overruns 0 frame 0
TX packets 28895 bytes 2842005 (2.7 MiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0

lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536
inet 127.0.0.1 netmask 255.0.0.0
loop txqueuelen 0 (Local Loopback)
RX packets 0 bytes 0 (0.0 B)

Seth

@RPiAwesomeness Is that the output of the entire command?

RPi Awesomeness

02:10

Yes

ifconfig

Braiam

@Seth he's telling pkexec to start as new user (problem is that when you specify none it start as root), I gave a more acceptable answer

RPi Awesomeness

Might give up on this for tonight and try again tomorrow...It's almost 9:20 here...

Seth

@RPiAwesomeness Then we need to get you the kernel headers.. I just don't know what package it is ;)

RPi Awesomeness

Ah.

Braiam

@RPiAwesomeness ls /usr/lib/modules/*/build?

RPi Awesomeness

02:12

I think that was what Braiam was trying to do.

Documentation Module.symvers crypto include lib samples sound
Kconfig arch drivers init mm scripts usr
Makefile block fs kernel net security virt

Braiam

arg! install linux-headers-kirkwood!

archlinuxarm.org/forum/viewtopic.php?f=58&t=6380

RPi Awesomeness

Was that an arg! of I'm stupid, or an arg! of this is annoying or an arg! for programming? :D

Seth

Great install that!

@Braiam but old though.

Nathan Osman

@Seth You missed the puzzle :)

RPi Awesomeness

erm...target not found :P

Braiam

02:15

@RPiAwesomeness arg! stupid arch...

RPi Awesomeness

pacman -Sy linux-headers-kirkwood

Ubuntu!

Seth

@NathanOsman Oh, yes I did!

Braiam

what's the output of uname -r?

RPi Awesomeness

Ubuntu be much better. However, Arch is more computer geekish :D

3.10.18-1-ARCH+

linux headers brings up something...reinstall I think

Braiam

@RPiAwesomeness pacman -Qi linux-headers

RPi Awesomeness

02:19

error: package linux-headers not found

Braiam

....

RPi Awesomeness

precisely

Seth

Oh boy.

Is there an apt-cache search alternative in pacman?

Journeyman Geek

@hbdgaf actually, up to fast ethernet, apparently yes.

Braiam

pacman -S linux-raspberrypi-headers-3.10.18-1

Journeyman Geek

02:21

What I don't get is why someone would bundle that cable (which, misleadingly, is labelled cat 5e)

RPi Awesomeness

error: target not found: linux-raspberrypi-headers-3.10.18-1

BOTHERATION!

Braiam

freak!!!

RPi Awesomeness

Fudge!

Seth

@strugee @RPiAwesomeness is running into this error:

DKMS: add completed.
Error! echo
Your kernel headers for kernel 3.10.18-1-ARCH+ cannot be found at
/usr/lib/modules/3.10.18-1-ARCH+/build or /usr/lib/modules/3.10.18-1-ARCH+/source.
error: command failed to execute correctly

RPi Awesomeness

Does strugee know Arch?

strugee

02:23

@Seth pacman -Ss foobar

Braiam

packman -Qs linux header

Seth

When trying to install his wireless card driver per this answer: raspberrypi.stackexchange.com/a/12947/7581

@strugee We can't figure out what package the kernel headers are...

RPi Awesomeness

Well...using -Ss didn't return an error...

strugee

@Braiam the -Q flag is for the local package db; it won't return results from the online repos

RPi Awesomeness

local/linux-api-headers 3.10.6-1
Kernel headers sanitized for use in userspace
local/linux-raspberrypi-latest-headers 3.12.6-1
Header files and scripts for building modules for linux kernel - Raspberry Pi

Braiam

02:24

he needs 3.10.18-1-ARCH+ kernel headers...

RPi Awesomeness

Something new :D

@strugee You good at Arch?

Braiam

we found the reason... headers are ahead kernel... so, how to sync?

strugee

@RPiAwesomeness yes.

to search use pacman -Ss foobar, or just search online: archlinux.org/packages/core/x86_64/linux-api-headers

RPi Awesomeness

That's because of this: chat.stackexchange.com/transcript/message/13172634#13172634 I was told to use the latest one

strugee

to sync, do pacman -Syu. but before you do that, you should read the fine news

RPi Awesomeness

02:26

Fine news?

strugee

you may want to install pacmatic, which is a nice wrapper that will do that for you: pacman -S pacmatic

RPi Awesomeness

Okay...

strugee

look it up on the arch wiki

RPi Awesomeness

Okay. Installed, now what?

strugee

use pacmatic instead of pacman. so: pacmatic -Syu will upgrade your system

Braiam

02:29

he should restart to use the new kernel, no?

RPi Awesomeness

Okay...crap ton of HTML flooding by...and:

Recent ML chatter: libgcrypt(11), pacman(7), netctl(3), make(2)
:: Synchronizing package databases...
core is up to date
extra is up to date
community is up to date
alarm is up to date
aur is up to date
:: Starting full system upgrade...
:: Replace sysvinit-tools with core/procps-ng? [Y/n]

strugee

y

RPi Awesomeness

k

strugee

why do you have "aur" listed?

RPi Awesomeness

Now:

resolving dependencies...
looking for inter-conflicts...

Packages (49): coreutils-8.22-2 cronie-1.4.11-1 cryptsetup-1.6.3-2.1
curl-7.34.0-2 dbus-1.6.18-3 device-mapper-2.02.104-1
dhcpcd-6.1.0-1.1 dirmngr-1.1.1-2.1 gdbm-1.11-1 glib2-2.38.2-1
gnupg-2.0.22-2.1 haveged-1.8-1 hwids-20130915.1-1
iana-etc-2.30-4 inetutils-1.9.1.341-2 iproute2-3.12.0-1
iptables-1.4.21-1 kbd-2.0.1-1 kmod-16-1 krb5-1.11.4-1
libcap-2.24-1 libdbus-1.6.18-3 libgcrypt-1.6.0-1
libldap-2.4.38-1 libnl-3.2.23-1 libpipeline-1.2.6-1

strugee

02:30

are you using archlinux.fr? that's a terrible idea

RPi Awesomeness

@strugee I have NO clue.

Seth

@strugee This is on a Raspi, as you might have guessed..

RPi Awesomeness

I'm using the Arch for ARM from the RPi foundation

Braiam

> linux-api-headers-3.12.4-1
linux-raspberrypi-3.10.25-2

doesn't anyone notice the problem?

strugee

@RPiAwesomeness with no modifications? run cat /etc/pacman.conf

RPi Awesomeness

02:31

grr...

I notice it. Mucho differenco

@strugee Nope. None that I know of

#
# /etc/pacman.conf
#
# See the pacman.conf(5) manpage for option and repository directives

#
# GENERAL OPTIONS
#
[options]
# The following paths are commented out with their default values listed.
# If you wish to use different paths, uncomment and update the paths.
#RootDir = /
#DBPath = /var/lib/pacman/
#CacheDir = /var/cache/pacman/pkg/
#LogFile = /var/log/pacman.log
#GPGDir = /etc/pacman.d/gnupg/
HoldPkg = pacman glibc
#XferCommand = /usr/bin/curl -C - -f %u > %o

strugee

@RPiAwesomeness cat /etc/pacman.d/mirrorlist?

RPi Awesomeness

#
# Arch Linux ARM repository mirrorlist
# Generated on 2013-09-19
#

## Geo-IP based mirror selection and load balancing
Server = http://mirror.archlinuxarm.org/armv6h/$repo

### Mirrors by country

### Brazil
## Sao Paulo
# Server = http://br.mirror.archlinuxarm.org/armv6h/$repo

### Canada
## Montreal
# Server = http://ca.mirror.archlinuxarm.org/armv6h/$repo

### France
## Ain
# Server = http://fr.mirror.archlinuxarm.org/armv6h/$repo

### Germany
## Aachen
# Server = http://de3.mirror.archlinuxarm.org/armv6h/$repo

Should I go ahead with the upgrade/update? -Syu?

strugee

oh, that isn't running? yeah

RPi Awesomeness

No, had to kill it to run those other commands

strugee

yeah run it

RPi Awesomeness

02:34

This will take a long time

Seth

you should install byobu :P

Braiam

@RPiAwesomeness open a new ssh session FTW?

RPi Awesomeness

I have ~80Kb/s speed. Terrible

strugee

watch the messages as it upgrades, they're helpful. when using Arch reading upgrade messages is expected

RPi Awesomeness

@Braiam :) Heh, not again. My forehead looks like the core of the sun already.

@strugee Nothing yet...

strugee

02:35

you can use pacman -Syuw to only download. then come back to perform the upgrade later.

just don't install anything before you upgrade

RPi Awesomeness

I'm just using -Syu

strugee

upgrading the package db is dangerous if you don't also upgrade the packages

Braiam

dupe of something askubuntu.com/q/345972/169736

Seth

@strugee Is byobu in the arch repos?

@Braiam Got it.

RPi Awesomeness

Done

Ever had your dad shove a pot of un-cooked saur-brauten in your face saying "Smell!"?

strugee

02:40

@Seth I don't think so. I'm pretty sure it's in the AUR

but screen is

RPi Awesomeness

Most interesting

Braiam

wait, I'm almost sure that screen -> byobu

RPi Awesomeness

And...still updating :P

strugee

byobu is a thin screen wrapper

Seth

@Braiam Yes

RPi Awesomeness

02:40

screen as in GNU Screen?

strugee

yes

Seth

Yes

RPi Awesomeness

ah sees

strugee

@Seth jinx

Braiam

> screen-profiles (1.0-0ubuntu1) jaunty; urgency=low

Seth

02:41

@strugee And AUR means?

RPi Awesomeness

Blech. This is very annoying

Seth

@strugee :P

Braiam

> Renaming project screen-profiles to byobu

strugee

@Seth Arch User Repositories. it's a tiny bit like PPAs although there are a lot of differences. e.g. AUR packages are built from source

RPi Awesomeness

Well, this has been an evening wasted...sorta. Bother Arch and its confusicating ways

Seth

02:42

@strugee Ah ok.

RPi Awesomeness

@strugee No offense to you

strugee

@RPiAwesomeness yeah, honestly, if you don't already know Arch I'd go for Debian

Seth

Or Ubuntu eh? :P

RPi Awesomeness

Well, it never hurts to learn something new! :D

strugee

@Seth nope. I'm unbelievably angry with Canonical, sorry!

Seth

02:43

true dat

RPi Awesomeness

@Seth Would! But Ubuntu-ARM only supports ARMv7+, RPi is ARMv6

@strugee Why?

Seth

@strugee Okey then.. shrug

@RPiAwesomeness Yeah I know :-/

RPi Awesomeness

Weell...It's about ~50% done...

strugee

@RPiAwesomeness I feel like they don't give back to the community enough. Upstart annoys me. and Mir is just unbelievable.

RPi Awesomeness

Oh goodness. Big packages

IAh see

strugee

02:44

I feel bad for saying that in an AU room, but...

Seth

@strugee no worry about it.

Everyone has their own opinions.

strugee

I dislike Unity, but I wouldn't recommend something else based solely on that. I'd just recommend something like Ubuntu GNOME. my problems with Ubuntu are mostly ethical :)

RPi Awesomeness

I has to goes for now. If it ever finishes I will ping you @strugee and probably @Seth and @Braiam...

/afk

strugee

alright, I have to do homework anyway

RPi Awesomeness

College?

And he's gone

/afk

Seth

02:47

alright guys.

strugee

@RPiAwesomeness 10th grade

now I'm gone for real :)

Mateo

anyone know if the new humble bundle games work on linux - humblebundle.com I don't see the compatibility icons on the latest one

vasa1

@Braiam, thanks for meta.askubuntu.com/questions/8085/…

Mateo

oh the video says it looks like they all will run on linux!

Seth

@vasa1 Added my own 2 cents :)

RPi Awesomeness

02:56

@strugee Well, it is finishing up now and cool! I'm just a grade below you!

syb0rg

@RPiAwesomeness Hehe, my bad...

RPi Awesomeness

@syb0rg That's fine

syb0rg

Have you guys gotten anywhere?

It didn't look like it from what I was reading.

Seth

I'm not sure.

I don't think we did.

RPi Awesomeness

Turns out selecting that other option through off something:
linux-api-headers-3.12.4-1
linux-raspberrypi-3.10.25-2

Nathan Osman

02:57

3

RPi Awesomeness

difference between headers and actual kernel

Seth

@RPiAwesomeness So, can you install the driver again?

RPi Awesomeness

OH NO!! GIFS! RUN AWAY!!!

@Seth It's installing those upgrade updates

syb0rg

@Seth I think he already tried that to no avail.

Seth

Oh right. So we're still installing updates then.

@syb0rg Yeah, he needs the kernel headers.. and we haven't been able to figure out how to get those.

RPi Awesomeness

02:59

@NathanOsman Dude...what is that?

RC bumblebee?

Seth

It's a street actor

syb0rg

@RPiAwesomeness Found something of interest

archlinuxarm.org/forum/viewtopic.php?f=58&t=6380

Nathan Osman

No idea, but it would make a ridiculous halloween costume.

RPi Awesomeness

Lol, it would :D

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