Archive for the ‘Ubuntu’ Category
If when attempting to update software or install new software in Ubuntu you find yourself being asked to insert the installation/live CD or if you find the following errors while trying to update your sources the following should help fix this error.
W: Failed to fetch cdrom://Ubuntu 11.10 _Oneiric Ocelot_ - Release amd64 (20111012)/dists/oneiric/main/binary-i386/Packages Please use apt-cdrom to make this CD-ROM recognised by APT. apt-get update cannot be used to add new CD-ROMs
W: Failed to fetch cdrom://Ubuntu 11.10 _Oneiric Ocelot_ - Release amd64 (20111012)/dists/oneiric/main/binary-amd64/Packages Please use apt-cdrom to make this CD-ROM recognised by APT. apt-get update cannot be used to add new CD-ROMs
W: Failed to fetch cdrom://Ubuntu 11.10 _Oneiric Ocelot_ - Release amd64 (20111012)/dists/oneiric/restricted/binary-amd64/Packages Please use apt-cdrom to make this CD-ROM recognised by APT. apt-get update cannot be used to add new CD-ROMs
W: Failed to fetch cdrom://Ubuntu 11.10 _Oneiric Ocelot_ - Release amd64 (20111012)/dists/oneiric/restricted/binary-i386/Packages Please use apt-cdrom to make this CD-ROM recognised by APT. apt-get update cannot be used to add new CD-ROMs
E: Some index files failed to download. They have been ignored, or old ones used instead.
In order to fix this you’ll need to open up a terminal and type:
sudo nano /etc/apt/sources.list
Now you’ll see something similar to the following:
From here add a # to any lines starting with “deb cdrom:” then save and exit nano (Ctrl+X, Y, Enter).
Now from terminal type:
sudo apt-get update
You should now be able to install and update all the things without the need for a CD being mounted.
After installing Steam on my linux machine in wine I noticed a really annoy bug, the windows of steam are tiled across my screen as shown in the screenshot below.
Fix:
I managed to fix this by opening up the ‘Configure Wine’ program that comes with wine and under the Applications tab switching from Windows XP mode to Windows 7, this fixed this bug and I now also have system borders on the steam windows.
Installing Wine:
If you’re interested in getting steam installed I used this guide - https://wiki.ubuntu.com/UbuntuMagazine/HowTo/InstallingSteam – It’s pretty simple and only takes a few minutes to do. Below is a quick, simple breakdown of what that guide says to do.
Download wine:
sudo apt-get install wine
Download the steam installer from here:
http://www.steampowered.com/v/index.php
Copy over the tahoma.ttf font from a Windows install (or Download it here – http://source.winehq.org/source/fonts/tahoma.ttf ). Do this command from the folder you downloaded the font to.
cp tahoma.ttf ~/.wine/drive_c/windows/fonts/
(If it doesn’t work and says the folder is missing or somthing like that do the following and then re-do the cp)
mkdir ~/.wine/drive_c/windows/fonts/
Finally install Steam (Do this command in the directory you downloaded the Steam installer to):
msiexec /i SteamInstall.msi
This Tutorial is just a documentation of how I flashed my Samsung Galaxy S (I9000) using heimdall with Darky’s Rom v10.1, follow the steps at your own risk. I am in no way liable for any damage caused to your phone following these steps. I would advise reading up on flashing before proceeding along with pre-reading the guide first.
If you don’t know what you’re doing, you should probably not do it.
For more information, help and most anything check out xdadevelopers forum and DarkysRom.com
This guide is using a fresh install of Ubuntu 11.04 on a memory stick, I was unable to get heimdall installed on Fedora 15 or Ubuntu 10.04.
For this guide I will use Darkys Rom v10.1, however it should work for all ROMs that come with the correct files, as shown below.
Installing Heimdall
First install the Qt Gui libraries:
sudo apt-get install libqtgui4
Once that’s installed head over to the heimdall website and download heimdall and the frontend for it, here I went for version 1.1.1 as the latest version (as of writing this guide 1.2.0 does not have a frontend).
Here simply download the .deb file and run it once it’s downloaded, you should be able to install them no problem.
(direct links for the version used in this guide)
Heimdall – https://github.com/downloads/Benjamin-Dobell/Heimdall/heimdall_1.1.1-1_i386.deb
Heimdall-frontend – https://github.com/downloads/Benjamin-Dobell/Heimdall/heimdall-frontend_1.1.1-1_i386.deb
Getting The Files
Download the ROM you wish to flash your phone with, for example download Darky’s Ressurection v10.1.
Extract Darky_Resurrection_10.1_i9000.zip
Inside also extract Darky_Resurrection_10.1.tar
You should have the following files:
Darky_Resurrection_10.1_i9000 (folder)
- Darky_Resurrection_10.1 (folder)
- boot.bin
- cache.rfs
- dbdata.rfs
- factoryfs.rfs
- modem.bin
- param.lfs
- Sbl.bin
- zImage
- Odin3 v1.3,exe
- Odin3 v1.7.exe
- s1_odin_20100512.pit
Preparing Your Phone
Make sure you have full battery and disabled all lagfixes.
Flashing The Phone
Press Alt+F2 and then type “heimdall-frontend” and hit enter.
Add the files to the correct heidmall options as so:
Repartition
PIT : s1_odin_20100512.pit
PDA/Code
FactoryFS : factoryfs.rfs
Kernel(zImage) : zImage
Param.lfs : param.lfs
Primary BootLoader : boot.bin
Secondary Bootloader : Sbl.bin
CSC
Cache : cache.rfs
Database Data : dbdata.rfs
Other
Modem : modem.bin
Recovery : –
Finally put your phone into download mode.
Once your phone is in downloadd mode, make sure it’s connected via USB and then press start on Heimdall.
After a few minutes your Heimdall will say Finished. Boom you’re done. Just wait for your phone to finish doing whatever it’s doing and you should end up back at the home screen soon enough.
Open up the openbox config file, it should be located in /home/username/.config/openbox/ but if it’s not you might have to do a little digging.
nano /~.config/openbox/rc.xml
Find the following lines and remove or comment them out, you can use Ctrl+W in nano to find:
Note: XML comments are as follow:<-- Comment -->
Save with Ctrl+X, Y, Enter (if you’re using nano) and restart OpenBox (Preferences -> OpenBox Config -> Restart) and all should be done.
If you’re getting the following error while trying export a video under several different codecs in OpenShot including AVI, MOV and MPEG using (mpeg2, mpeg4 or h.264) chances are this might help you with that error.
The following formats/codecs are missing from your system:
libmp3lame
You will not be able to use the selected export profile. You will need to install the missing formats/codecs or choose a different export profile.
This is a simple fix:
- Open up Synaptic Package Manager
- Search “libavformat”,
- If the current package installed is “libavformat52″ select “libavformat-extra-52″ (alternativly “libavformat-unstripped-52″ should also work).
- Else the package might be “libavformat53″ so simply change to “libavformat-extra-53″, basically it might end in different numbers, it should work the same.
- Hit Apply and approve the changes.
Let’s say you’ve got a text file, of any size, big or small, and you want to remove every other line of that file, well here are a few commands in Linux that allow you to do this.
Example, you want to get from this:
1
2
3
4
5
6
7
8
9
10
To this:
1
3
5
7
9
The sed way:
sed -n "p;N;" file.txt > newfile.txt
The awk way:
awk 'NR%2 != 0' file.txt > newfile.txt
Here you can actually specify N lines, replace 2 in the above command and you’ll be able to take out every N’th number. As an example, here’s the above replaced with a 3 on the file:
1
2
4
5
7
8
10
Easy as pie, right?
Error:
end_request: I/O error, dev sr0, sector 537392
If you’re getting a similar error filling your screen once you’ve installed Ubuntu, don’t panic. It’s pretty common which is basically because Ubuntu (or any other Linux distro) can’t control your CD/DVD drive properly, it’s probably trying to open/close it but doesn’t know if it has or not. The problem is that you don’t get to see what Ubuntu wrote before because it’s filled your screen up with this error.
If you’ve just installed Ubuntu this probably happened when it wanted you to take the disc out and close the cd tray (if there is one) then hit Enter to finish the installation, so just do that and ignore this error.
If you’re running off a live USB disk or changing your graphics card the error below might appear when Xorg is looking for the wrong drivers or device. You might also get this error while using the Nvidia drivers, I found however this was caused by some of the extra options added into the xorg.conf file (usually located /etc/X11/xorg.conf). If the case is that it’s a problem with the aditional options I suggest making a backup of the file and attempting to comment out (#) aditional options, this will need a bit more of an expert eye to see what isn’t needed though.. You can also use the following to rollback to a working version when using the Nvidia drivers.
There is a pretty simple fix, if it is caused by broken or changed xorg.conf file:
Fix:
Make a backup of your current Xorg.conf, just in case something goes even more wrong and it can be easily restored:
sudo cp /etc/X11/xorg.conf /etc/X11/xorg.bckup
Now you’ll want to restore the failsafe (sometimes called xorg.conf.backup) config to be used as the default:
sudo cp /etc/X11/xorg.conf.failsafe /etc/X11/xorg.conf
Yeah, it was that simple (if this error was caused by a broken or changed xorg.conf anyway. So you can continue and start the x server with:
startx
Error:
X.Org X Server 1.9.0
Release Date: 2010-08-20
X Protocol Version 11, Revision 0
Build Operating System: Linux 2.6.24-27-server i686 Ubuntu
Current Operating System: Linux ubuntu 2.6.35-22-generic #33-Ubuntu SMP Sun Sep 19 20:34:50 UTC 2010 i686
Kernel command line: noprompt cdrom-detect/try-usb=true persistent file=/cdrom/preseed/ubuntu.seed boot=casper initrd=/casper/initrd.lz quiet splash -- maybe-ubiquity
Build Date: 16 September 2010 05:39:22PM
xorg-server 2:1.9.0-0ubuntu7 (For technical support please see http://www.ubuntu.com/support)
Current version of pixman: 0.18.4
Before reporting problems, check http://wiki.x.org
to make sure that you have the latest version.
Markers: (--) probed, (**) from config file, (==) default setting,
(++) from command line, (!!) notice, (II) informational,
(WW) warning, (EE) error, (NI) not implemented, (??) unknown.
(==) Log file: "/var/log/Xorg.0.log", Time: Fri Mar 4 11:35:54 2011
(==) Using config file: "/etc/X11/xorg.conf"
(==) Using system config directory "/usr/share/X11/xorg.conf.d"
(EE) No devices detected.
Fatal server error:
no screens found
Please consult the The X.Org Foundation support
at http://wiki.x.org
for help.
Please also check the log file at "/var/log/Xorg.0.log" for additional information.
ddxSigGiveUp: Closing log
giving up.
xinit: No such file or directory (errno 2): unable to connect to X server
xinit: No such process (errno 3): Server error.
Errors:
$ sudo ifconfig wlan1 up
SIOCSIFFLAGS: Resource temporarily unavailable
$ dmesg usb
rtl819xU:FirmwareDownload92S(): failed with TCR-Status: a
rtl819xU:ERR!!! _rtl8192_up(): initialization is failed!
Solution 1:
To get this wifi dongle working I simply had to download the above firmware and place it in /lib/firmware/RTL8192SU/ and then reboot my computer. You should check that location before hand and make a backup of anything inside of it if you’re not sure what you are doing. If it’s empty you can use the following commands to make the directory and then download the firmware directly.
sudo mkdir /lib/firmware/RTL8192SU/
cd /lib/firmware/RTL8192SU/
sudo wget http://svn.debian.org/wsvn/kernel/dists/trunk/firmware-nonfree/realtek/RTL8192SU/rtl8192sfw.bin
Solution 2:
Alternatively download the source and build it:
wget http://launchpadlibrarian.net/33927923/rtl8192se_linux_2.6.0010.1012.2009.tar.gz
tar -zxvf rtl8192se_linux_2.6.0010.1012.2009.tar.gz
cd rtl8192se_linux_2.6.0010.1012.2009
make
sudo make install
Downloads:
Firmware: http://svn.debian.org/wsvn/kernel/dists/trunk/firmware-nonfree/realtek/RTL8192SU/rtl8192sfw.bin
Source: http://launchpadlibrarian.net/33927923/rtl8192se_linux_2.6.0010.1012.2009.tar.gz
So, you’ve created an awesome Live USB Linux stick with a persistence file which let’s you boot anywhere and carry all your sweet sweet datas around on it too. If you want to see those files in Linux on your desktop or laptop outside the USB you’re going to have to mount the loop device (the casper-rw file) somewhere first. The following commands show how to make a folder and mount the loop and then unmount it too.
Just change the /media/USB/ for the mounted location of your mounted USB stick which contains the casper-rw file you want to view the contents of and the /home/alex/caspermnt/ for the mount point on your system.
Mount:
mkdir ~/caspermnt
sudo mount -o loop /media/USB/casper-rw /home/alex/caspermnt/
Unmount:
sudo umount ~/caspermnt/
This can be useful for recovering data from a borked Live USB stick or for backing up your files on your computer just to be sure.
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About Hi, my name is Alex. I just got through studying Robotics at UWE and I am continuing to do a MSc by Research also in Robotics.
I enjoy a whole heap of things but on this website I mostly post linux, programming, machine vision and other similar topics.
You're free to redistribute anything you find on here, unless it states otherwise, as long as you are not selling it for profit and you link back to my site. Cheers.
Disclaimer Just to cover my ass.
Any information on this site is for informational purposes only, I take no responsibility for the accuracy, reliability, bla, bla or bla to it. Any information you use, you are using at your own risk. I am in no way liable for any loss, damage of data, hardware or anything else in connection with the use of this website.
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