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by elatllat
Sun Aug 16, 2015 1:01 pm
Forum: Troubleshooting
Topic: mirrordirector.raspbian.org
Replies: 13
Views: 4122

mirrordirector.raspbian.org

nice apt-get update ... Err http://mirrordirector.raspbian.org wheezy Release.gpg Could not connect to mirrordirector.raspbian.org:80 (5.153.225.207), connection timed out ... W: Failed to fetch http://mirrordirector.raspbian.org/raspbian/dists/wheezy/Release.gpg Could not connect to mirrordirector...
by elatllat
Thu May 28, 2015 1:09 am
Forum: General discussion
Topic: USB Dongle for speed.
Replies: 2
Views: 599

Re: USB Dongle for speed.

What's your speed test result:
http://www.dslreports.com/speedtest

Most people are limited by there ISP speed not the local hardware.

Try reducing the bit depth and compressing it with flac.
by elatllat
Thu May 28, 2015 12:59 am
Forum: Beginners
Topic: Best way to measure RPM of rotating shaft
Replies: 8
Views: 5575

Re: Best way to measure RPM of rotating shaft

Take apart an old ball mouse.
by elatllat
Thu May 28, 2015 12:57 am
Forum: Advanced users
Topic: Change size of root partition
Replies: 3
Views: 537

Re: Change size of root partition

Using another computer you should be able to shuffle it around with gparted and dd if needed.
by elatllat
Thu May 28, 2015 12:47 am
Forum: Raspbian
Topic: Chromium Iceweasel won't play mp3
Replies: 6
Views: 1755

Re: Chromium Iceweasel won't play mp3

The raspberrypi foundation chose to optimize that other browser instead of chromium maybe due to the memory limitations of pre B2 boards. So a lot of chromium features are disabled on the armv6 build and it's a really old version.
by elatllat
Wed May 27, 2015 7:41 pm
Forum: General discussion
Topic: What is your main purpose of the PI?
Replies: 22
Views: 3403

Re: What is your main purpose of the PI?

All my raspberrypis are waiting to be replaced by cheaper more powerful alternatives that if named would get this post deleted my a mod.
by elatllat
Wed May 27, 2015 7:34 pm
Forum: General discussion
Topic: Raspberry Pi 2 power supply?
Replies: 10
Views: 3126

Re: Raspberry Pi 2 power supply?

kusti8 wrote:The difference between the B+ and 2B in power is hardly noticeable.
Quantified:
Image
by elatllat
Tue Mar 24, 2015 5:41 pm
Forum: C/C++
Topic: rowhammer
Replies: 6
Views: 1991

Re: rowhammer

Yes I am aware of that.
I linked to a page saying "ARM doesn’t have an unprivileged cache-flush instruction".
What I'm asking is "Are there [other] routes to row hammering in the ARM instruction set"?
by elatllat
Tue Mar 24, 2015 4:59 pm
Forum: General discussion
Topic: BluRay Burner Data (NOT movie)
Replies: 5
Views: 1281

Re: BluRay Burner Data (NOT movie)

looks like no one has tried; http://elinux.org/RPi_VerifiedPeripherals BluRay writing should work though as it is working on other Debian systems http://askubuntu.com/questions/43971/is-blu-ray-writing-support-reliable-yet and the same tool is available on Raspbian; apt-cache show growisofs Package:...
by elatllat
Tue Mar 24, 2015 4:45 pm
Forum: Media centres
Topic: Kodi - no visualisations avaialble
Replies: 2
Views: 3987

Re: Kodi - no visualisations avaialble

You can use one of the pre-built solutions like osmc or you can add repositories to get access to more plugins.
by elatllat
Tue Mar 24, 2015 4:35 pm
Forum: C/C++
Topic: rowhammer
Replies: 6
Views: 1991

rowhammer

The rowhammer test won't compile for the raspberrypi;

Code: Select all

make.sh
/tmp/ccC9UOyB.s: Assembler messages:
/tmp/ccC9UOyB.s:375: Error: bad instruction `clflush (r2)'
Are there even any routes to row hammering in the ARM instruction set?
by elatllat
Mon Mar 02, 2015 8:50 am
Forum: Camera board
Topic: .HELP. Camera Stream
Replies: 4
Views: 1699

Re: .HELP. Camera Stream

As of 2015 HTML5 browsers still don't have support for video/MP2T, so you can use a flash player or vlc plugin.
http://www.mybigideas.co.uk/RPi/RPiCamera/
by elatllat
Mon Mar 02, 2015 7:51 am
Forum: Camera board
Topic: How to display camera video in VLC player in realtime?
Replies: 1
Views: 2651

Re: How to display camera video in VLC player in realtime?

run this

Code: Select all

raspivid -o - -t 0 | cvlc -v stream:///dev/stdin --sout '#rtp{sdp=rtsp://:8554/}' :demux=h264
Open

Code: Select all

rtsp://<IPofRaspberryPi>:8554/
in VLC
http://www.mybigideas.co.uk/RPi/RPiCamera/
by elatllat
Tue Feb 10, 2015 6:30 pm
Forum: General discussion
Topic: Official downloads 200MB larger than needed
Replies: 0
Views: 312

Official downloads 200MB larger than needed

So I downloaded the 977M 2015-01-31-raspbian.zip, dd-ed it to the card, expanded the fs, installed ~100MB of software did a backup and was left with a 784M raspbmc_backup_20150208_clean.img.7z now LZMA2 compression aside I'm guessing the official images do not have free space zeroed like the upstrea...
by elatllat
Tue Feb 10, 2015 5:57 pm
Forum: Raspbian
Topic: When and how to upgrade?
Replies: 4
Views: 730

Re: When and how to upgrade?

Some reading: nice man I backup the majority of my data separately from the OS with rsync, but if you are using the pi for just openvpn, you don't need that. More backup tools I use that you likely don't need but may find interesting: rsync rdiff-backup duplicity git git-annex rtorrent I don't bothe...
by elatllat
Tue Feb 10, 2015 5:02 pm
Forum: Raspbian
Topic: When and how to upgrade?
Replies: 4
Views: 730

Re: When and how to upgrade?

Normally you should do the update/upgrade when there is a security issue effecting something you use (ssh/openvpn/etc) and before installing new software. The former is rare, and the latter may not be needed, though things change regularly enough that an update is normally needed before installing a...
by elatllat
Tue Feb 10, 2015 4:34 pm
Forum: Beginners
Topic: Where's my memory?
Replies: 3
Views: 680

Re: Where's my memory?

lsblk is one of those convenience tools like mtr and tree that you can get buy without but become favored once you find them.
by elatllat
Tue Feb 10, 2015 2:15 pm
Forum: Advanced users
Topic: Device tree overlay - dynamic load and unload
Replies: 11
Views: 3865

Re: Device tree overlay - dynamic load and unload

...there shouldn't be anything you can do without DT that you can't do with it... Except adding a new hardware specification without rebooting right? /boot/overlays/README said "it is advisable to only enable interfaces if they are needed" with no reason given. Why is it advisable? (less memory usa...
by elatllat
Tue Feb 10, 2015 1:53 pm
Forum: General discussion
Topic: how to edit/upload files to lighttpd
Replies: 5
Views: 1272

Re: how to edit/upload files to lighttpd

run the command again,and you also might need/want to

Code: Select all

sudo chown -R :www-data /var/www
by elatllat
Mon Feb 09, 2015 9:57 pm
Forum: General discussion
Topic: how to edit/upload files to lighttpd
Replies: 5
Views: 1272

Re: how to edit/upload files to lighttpd

Assuming you are using windows you can copy files to to pi with winscp.
If you need to edit the rights you can do so with

Code: Select all

sudo chmod -R 0777 /var/www
There are many other ways of doing what you want (windows share, etc) but try the simple way first.
by elatllat
Mon Feb 09, 2015 9:51 pm
Forum: Advanced users
Topic: Device tree overlay - dynamic load and unload
Replies: 11
Views: 3865

Re: Device tree overlay - dynamic load and unload

As noted in /boot/overlays/README you could use device_tree= to use the "old way of doing things" and hope this implementation of Device Tree overlays (a step backward in usability) will be updated to permit loading overlays from config.txt without a reboot.
by elatllat
Mon Feb 09, 2015 6:49 pm
Forum: General discussion
Topic: Looking to hire for a simple development
Replies: 3
Views: 544

Re: Looking to hire for a simple development

no need for a GUI, just put this in a file (gpio_sequence.sh) and run it (bash gpio_sequence.sh) pinprep() { N=$1 if [ ! -d /sys/class/gpio/gpio$N ] ; then echo "$N" > /sys/class/gpio/export fi echo "out" > /sys/class/gpio/gpio$N/direction } pinon() { N=$1 echo "1" > /sys/class/gpio/gpio$N/value } p...
by elatllat
Mon Feb 09, 2015 6:16 pm
Forum: Beginners
Topic: Where's my memory?
Replies: 3
Views: 680

Re: Where's my memory?

1) use parted or gparted to look at how your card is partitioned. 2) be aware of bits vs bytes, and base 2 vs base 10 units 3) be aware of file system overhead (optionally remove reserved space with "tune2fs -m 0 /dev/root") 4) use "df -h /" and "du -schx /*" ("df -H" and "du --si" are base 10 units...
by elatllat
Sun Feb 08, 2015 8:05 pm
Forum: General discussion
Topic: upgrade to unbootable
Replies: 2
Views: 2214

upgrade to unbootable

Maybe raspberrypi-bootloader should be in dist-upgrade, not safe-upgrade. nice apt-get upgrade Reading package lists... Done Building dependency tree Reading state information... Done The following packages will be upgraded: krb5-locales krb5-multidev libgssapi-krb5-2 libgssrpc4 libk5crypto3 libkadm...

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