Lenovo ix2-dl corrupted firmware

What a pain in the $%^&*( ass.

Lenovo has no concept of using a md5 checksum on a file to confirm its integrity before you flash it and end up with a corrupted NAS like me.

AND to top it off, Lenovo support only offers a destructive way to reflash the NAS, double %^&*()^& in the ass.

So, initially I thought the drives were set up as a zfs disk set – installed the zfs needed debs on my debian jessie system only to find out all the lenovo disk set is is a linux md raid set, so  (pulling this from my bash history)

 

Disk /dev/sdd: 1.8 TiB, 2000398934016 bytes, 3907029168 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disklabel type: gpt
Disk identifier: 276C4C51-BFA8-4E33-AB51-FC7033AA6D56

Device Start End Sectors Size Type
/dev/sdd1 65536 42008575 41943040 20G Microsoft basic data
/dev/sdd2 42008576 3907028991 3865020416 1.8T Microsoft basic data


Once I figured out it was just a md linux raid set, it was easy peasy to import :


root@dell:~# mdadm --assemble --run /dev/md1 /dev/sdd2 
mdadm: /dev/md1 has been started with 1 drive (out of 2).

# DOH! no lvm2 installed on the system
root@dell:~# mount /dev/md1 /mnt
mount: unknown filesystem type 'LVM2_member'
root@dell:~# pvscan
-su: pvscan: command not found
root@dell:~# apt-get install lvm2

pvscan, vgscan, and lvscan bought it LV into devicemapper

root@dell:~# pvscan
 PV /dev/md1 VG bad2c48_vg lvm2 [1.80 TiB / 0 free]
 Total: 1 [1.80 TiB] / in use: 1 [1.80 TiB] / in no VG: 0 [0 ]
root@dell:~# vgscan
 Reading all physical volumes. This may take a while...
 Found volume group "bad2c48_vg" using metadata type lvm2
root@dell:~# lvscan 
 ACTIVE '/dev/bad2c48_vg/lv3140cc7e' [1.80 TiB] inherit

Mounted it up, 
root@dell:~# sudo mount /dev/bad2c48_vg/lv3140cc7e /mnt

bingo - now I can find 1.8TB worth of space elsewhere to rsync all that %^&*( data off 
so I can follow Lenovo's destructive NAS rebuild.

Updating a Raspberry Pi 2 boot disk to a Raspberry Pi 3

This is just the real basics as I figured out and a work in progress.  I have not really figured out yet what wireless network driver that needs to be added to a Pi2 image to make it see the embedded Pi3 wireless network, but using a wired ethernet it at least gives me the option to capture some code off a distributed Pi2 image so it can be dropped onto a fresh install of 2016-05-27-raspian-jessie.

So in the example, I am using the ProxyMagic image for a Raspberry Pi 2 and want to drop the code onto a newer Pi3 Raspbian image.

  1. Download the latest raspbian image – I am using the debian jessie version dated May 27th 2016 from https://www.raspberrypi.org/downloads/raspbian/
  2. Unpack the .zip to expand to the .img file 2016-05-27-raspbian-jessie.img
  3. View the disk contents – this shows 2 partitions, the 63MB MSDOS boot partition and the 3.7GB linux partition
    $> fdisk -lu 2016-05-27-raspbian-jessie.img

    Disk 2016-05-27-raspbian-jessie.img: 3.8 GiB, 4019191808 bytes, 7849984 sectors 
    Units: sectors of 1 * 512 = 512 bytes 
    Sector size (logical/physical): 512 bytes / 512 bytes 
    I/O size (minimum/optimal): 512 bytes / 512 bytes 
    Disklabel type: dos 
    Disk identifier: 0x14c20151 
    Device                          Boot  Start     End   Sectors  Size Id   Type 
    2016-05-27-raspbian-jessie.img1        8192  137215    129024   63M  c    W95 FAT32 (LBA)
    2016-05-27-raspbian-jessie.img2      137216 7849983   7712768  3.7G 83    Linux
    
  4. Copy this off to a 8GB microSD card  – my sdcard came in as /dev/sdd – you can check your dmesg output after inserting your card to get the device.
    $> sudo dd if=2016-05-27-raspbian-jessie.img of=/dev/sdd
  5. As soon as the dd completes, my linux file manager (nemo) refreshed with the “boot” partition and a 3.7GB Volume.  I can click on each to mount them in userspace – ie, the mount as /media/glaw/boot and /media/glaw/<some big long UID>
  6. In a terminal window, I did a cd to the sdcard ext4 mount  and wiped everything out
    $> cd /media/glaw/fc254b57-8fff-4f96-9609-ea202d871acf
    $> sudo rm -rf *
    $> sudo sync
  7. Now to mount up the ProxyMagic image to copy the files over.  I’ve read about how you can calculate the total sectors offset based on the start # and the sector size and then specify the offset when doing a loop back mount, but found that kpartx does the trick very well.
    $> kpartx -v -a ProxyMagic-RPI-v1.img
    add map loop2p1 (253:0): 0 114688 linear /dev/loop2 8192
    add map loop2p2 (253:1): 0 5662720 linear /dev/loop2 122880
  8. Up pops an authentication window asking for sudo rights to mount the new boot file system – it should mount as /media/glaw/boot1 and then click on the 2.9GB volume to mount.S05NLP~U
  9. Locate the other

Open Sourcing my Hackintosh ;)

Running a HP SPP mini tower with Yosemite installed and finally getting tired of finder and iTerm. Don’t get me wrong, I like iTerm, but from my linux background, my fingers just know terminator so much better 🙂

I tried installing terminator via brew but it did not seem very stable – I opened up a 4-up terminator view and after the icon spun for 5 minutes, it crashed.

Fink seems to be much more stable and integrates its programs right into XQuartz where the brew installed version popup’d a separate python window.

1. install fink:  bash script to do it all for ya https://raw.githubusercontent.com/fink/scripts/master/srcinstaller/Install%20Fink.tool

2. fink install terminator

3. fink install nautilus

4. Setup dbus for OSX :

sudo launchctl load -w /sw/share/dbus/launchd/org.finkproject.dbus-session.plist

launchctl load -w /sw/share/dbus/launchd/org.finkproject.dbus-session.plist

 

Screen Shot 2016-03-20 at 8.17.54 PM

Remaster a Linux install CD to allow installation on a Macbook

Turns out this was pretty easy to get going on my Macbook 2006 model to install Xubuntu.

On my fedora computer I installed isomaster (yum install isomaster), then opened the Xubuntu.iso I downloaded with isomaster.

glaw@fedora ~ $ isomaster xubuntu-14.04-desktop-amd64.iso 

Highlight the EFI folder, ad then click the icon 5th icon on the bottom (I think its supposed to be a trashcan.

Then file -> Save As and save a new copy of the ISO. 

You will end up with a slightly smaller iso:

glaw@fedora ~ $ ls -la x.iso xubuntu-14.04-desktop-amd64.iso 
-rw——- 1 glaw users 953790464 Jun  4 20:22 x.iso
-rw-r–r– 1 glaw users 957349888 May  6 10:21 xubuntu-14.04-desktop-amd64.iso

Now burn the x.iso with your favorite burner. 

glaw@fedora ~ $ basero x.iso

Once your have burned this off successfully, insert into your Macbook, boot up while pressing the alt/option key and select the “Windows” Icon (the mac thinks this is a boot camp install).

This other website will help in getting your Mac setup for the new OS : 

http://www.rodsbooks.com/ubuntu-efi/

 

Docker UCLUG 5/13/2014

Awesome meeting last night with my fellow geeks at UCLUG  – Many Thanks to Tim Fowler – https://twitter.com/roobixx

http://youtube.com/watch?v=DuD0tYS_Sls

The topic was Docker … Docker is based on the concept of containers .. no necessarily the LXE containers (akin to Solaris zones), although the docker containers will run within LXE containers, basically docker is described as chroot on steroids.

The minimum basis for a docker container is the bare minimum libraries required to run a Linux distribution (probably version close to a net install).  So I downloaded the base fedora docker image – about 250 MB … it booted up in docker in about 3 seconds.

Screenshot - 05142014 - 06:41:13 PM

The idea is that you start with one of these base images, yum install all required packages to run your app.  For example, for a simple wordpress website container, you may install apache, php, mysql.  You do a docker commit to save your changes.   The changes get saved as a separate layer.  

So my understanding of the internals of docker is that when you boot a docker image, the base image plus all layers get joined together via unionfs  http://en.wikipedia.org/wiki/UnionFS, and then the linux system invokes a chroot to that unionfs mount and invokes the normal system startup as if it was a stand alone machine.  Almost a virtual machine, but it does not run a separate kernel.  Essentially you can pull down  the base ubuntu image and run Ubuntu linux on top of Fedora.  In addition, there are settings that control CPU/Memory affinity for each container as well as some SDN (software defined networking) components that allow you to control how one container can communicate with other containers and/or back to/from the host machine.  So you can expose port 80/443 running in a container to the host machine (and out to the network)

Unlike a virtual machine where you may want to duplicate a base “machine” to use it as the basis for several different applications, you can build several docker containers, all with their own unique purposes, based on the same fedora base image.

CONTAINER_A : APACHE/PHP stack
CONTAINER_B : MySQL DB

Unlike a virtual machine clone where you are duplicating the total OS, with docker, CONTAINER_A and CONTAINER_B  (as well as all other containers built off the same base image) all reference back to the same base fedora image and then just apply their own individual layers representing the deltas.

That’s it in a nutshell

WordPress – importing images from non-wordpress images directory

Working on a freelance site and somehow a bunch of images got uploaded to /images/2012/09/…  what the heck? I cannot even figure out how that happened.

Trying this new “smush.it” plugin and guess what, it only works off images inside the media manager.

After looking around for a couple hours, I finally figured it all out.  DISCLAIMER:  Before trying this, make sure you back up your database.  PHPMyAdmin has an “Export” option that will let you do this.

  1. First is a plug-in called “add from server” – http://wordpress.org/extend/plugins/add-from-server/.  This plugin gives you a file manager type interface to browser your website directories, so I pointed it at /images and let it import from there.  I wish it was recursive, but no such luck.  Lucky for me, I only had to drill down into /images/2012/09/ and import from there as well as my top level /images directory.  Importing gives you the option of using the original file date, so it copies the files to /wp-content/uploads/2012/09 and maintains that same date based hierarchy.  From the /images directory I just imported those ones with today’s date, so they ended up in /wp-content/uploads/2013/01/…
  2. After importing I had to refresh some of my MySQL skills.  The trick was to search the database for src=”/images/…” and update that to be src=”/wp-content/uploads/…”.  It took me a couple tries to get it right.  I started with a SELECT statement to get the syntax correct.
    SELECT post_content,replace(post_content,’src=”/images’,’src=”/wp-content/uploads’) FROM `wp_posts` WHERE post_content like ‘%src=”/images%’;
    This let me verify the substitution was happening the way I wanted it to, then it was just a matter of rewrite this as an UPDATE query (after I BACKED UP MY DATABASE!), this was the query:update wp_posts set post_content=replace(post_content,’src=”/images’,’src=”/wp-content/uploads’)  WHERE post_content like ‘%src=”/images%’;

 

Linux Mint Maya with Cinnamon 1.6 – Add additional media apps to the sound applet

I am a recent convert over to Linux Mint from Mac OSX.  After running OSX on my converted windows PC for 4 years, I got tired of not being able to update it so I figured I would take another run at Linux on the Desktop.

Linux Mint ships with their “cinnamon” desktop, which is a modified version of Gnome3.  After updating to the latest release of Cinnamon (1.6), I have been tweaking the GUI.  One of the “panel” applets Mint ships with is the Volume control applet, which also lets you launch different system media players.  Mint seems to ship with the basic media apps and uses Banshee as its default MP3 player.  

My primary media apps are Pandora and Songbird at the moment.  I am a paid Pandora user, so they give you access to their “desktop app” which runs via Adobe Air.  Here is a little tutorial on adding these 2 apps to the “Launch” area of the sound applet.  

First, you can install Sondbird using : sudo apt-get install songbird 

Pandora is a little more difficult, see this link on Installing Adobe Air – once this is installed, you can double click on the Pandora.air file and it should install properly.  

Adding these to the sound applet requires editing the javascript file that drives the applet, this is located at /usr/share/cinnamon/applets/sound@cinnamon.org.  In a terminal window,  

First we need to figure out the name of the pandora launcher file, which I believe gets set up with a unique id for each user.  

cd /usr/share/applications

glaw@mint : /usr/share/applications $ ls com.pandora*

com.pandora.desktop.fb9956fd96e03239939108614098ad95535ee674.1.desktop

cd /usr/share/cinnamon/applets/sound@cinnamon.org

sudo cp applet.js applet.js.orig 
sudo vi applet.js

Look for the line:

let compatible_players = [ “clementine”, “mpd”, “exaile”, “banshee”, “rhythmbox”, “rhythmbox3”, “pragha”, “quodlibet”, “guayadeque”, “amarok”, “googlemusicframe”, “xbmc”, “xnoise”, “gmusicbrowser”, “spotify”, “audacious”, “vlc”, “beatbox” ]

and update it to look like this:

let compatible_players = [ “clementine”, “mpd”, “exaile”, “banshee”, “rhythmbox”, “rhythmbox3”, “pragha”, “quodlibet”, “guayadeque”, “amarok”, “googlemusicframe”, “xbmc”, “xnoise”, “gmusicbrowser”, “spotify”, “audacious”, “vlc”, “beatbox” , “songbird” , “com.pandora.desktop.fb9956fd96e03239939108614098ad95535ee674.1” ];

It looks like since the default launcher for songbird is simply called songbird.desktop, we do not need any special value here, but substitute your unique pandora launcher file name (minus the .desktop) above.  
Save the file, and then logout or resart Cinnamon.  You should have Pandora and Songbird on the sound applet menu now 🙂

WordPress – using short codes within 404 page

Just a trick I just figured out – I installed a sitemap plugin for wordpress and wanted to drop the rendered sitemap into my 404 page.  The short code for the plug was [ slick-sitemap ].  So, in my 404.php page within my theme directory, I just added this :

<?php echo  apply_filters(‘the_content’,'[slick-sitemap]’);?>

 

that’s, well, slick 🙂

 

Facebook plugin FAIL

So I was reading about facebook releasing their official wordpress plugin the other day, so I figured I would try it out on one of my sites – http://diabetesbattle.org

Instant failure ;

Fatal error: Call to undefined method Facebook::get_loggedin_user() in /home/diabetesbattle.org/wp-content/plugins/wp-facebookconnect/fbconnect.php on line 48

My top 5 wordpress plugins

404 Redirected – coupled with SEO Ultimate, allows you to catch 404 errors (ie – outdated bookmarks) and link them to the correct content.

Akismet – comes bundled with wordpress and for good reason.  Best anti-spam tool I have found for wordpress.

Better WordPress Minify  – awesome at reducing the number of HTTP requests your site generates.  combines all JS into 1 <javascript> tag, and all css into a single tag.

Contact Form 7 – simple contact form to email processing plugin

 SEO Ultimate – This one is helpful, not just for SEO but for general site management.  Has a 404 tracker as well as allows you to defined per page custom titles, meta descriptions, and keywords.