Ubuntu is a Linux distribution with an emphasis on ease of use and installation. Note that http://askubuntu.com is specifically dedicated to Ubuntu questions.

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Cannot switch to other application

Sorry for asking the basic question. I have difficulties to switch to others window which is located at right side of this picture.Any idea how can I switch to other window ?.I already try to use ...
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3answers
2k views

Changing root password does not change sudo password

I'm trying to change the password that get's asked when doing sudo. I'm in Ubuntu. Doing 'sudo passwd' or 'sudo passwd root' does give me the two new password questions, and it successfully changes ...
2
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1answer
19 views

Installing Ubuntu/Debian on 16 GB SD Card

Is it possible to install Ubuntu/Debian on my 16 GB SD Card ? Do I just during installation process chose my SD Card partition and install it (that doesn't work if we have USB) or do I need to install ...
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0answers
21 views

no internet connection (wireless or wired) on ubuntu 12.04

I have win7 and ubuntu 12.04 on dell inspiron 1545 with Dell Wireless 1397 WLAN MiniCard. wireless works fine on windows, but I cannot connect with ubuntu. when I tried connect with a cable - it said ...
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1answer
11 views

locate java source code in jdk7

I have installed Jdk7 in Ubuntu 14.04 and it is successfully configured and I can use java libraries in code. The problem is that I am trying to locate java source code, but not able to find the jar ...
3
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2answers
761 views

Can't get lm-sensors to ouput correctly or load ATI Radeon temp and fan

I am new to Linux and having minor issues. I followed this guide initially, but did not receive the proper output, and it did not show my ATI Radeon HD 5000 temperature or fan speed. Then I used this ...
6
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3answers
511 views

Detection of USB Modem is unstable - how can I correct this?

I am using Huawei 3G USB Modem in Ubuntu 12.04 LTS on DELL Inspiron NS5520. I tried every possible solution but had no luck. Whenever my USB Modem disconnects, I can not re-connect it and then I have ...
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2answers
15 views

I am using service restart command the system will hunging,please help me?

I am using ubuntu 13.04 version in my labtop on the I give the restart command(service networking restart) the system will hunged can please help me.
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0answers
9 views

Bridge-utils installed on ubuntu 13.04 but unable to start the service

I upgraded my laptop Ubuntu 12.04 to 13.04. Before upgraded to Ubuntu 13.04, I installed qemu-kvm, bridge-utils, libvirt-bin & ubuntu-vm-builder. There its worked properly, After upgraded to ...
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2answers
5k views

eth0 not being configured automatically

When I start an ubuntu 12.10 instance, eth0 is NOT getting configured. davidparks21@MySqlDB:~$ cat /run/network/ifstate lo=lo When I manually edit ifstate and add eth0=eth0 and service restart ...
2
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1answer
20 views

Lubuntu IP conflict [on hold]

I have this friend who recently installed Lubuntu on his Asus Netbook to try it out. Problem is that even though he can find all network connections and after trying to connect to two of them (giving ...
1
vote
4answers
976 views

Missing Fedora in grub after installing Ubuntu

I had Fedora 17 in a primary partition. Yesterday I installed Ubuntu in an extended partition, and I can't see Fedora in grub, so I tried update-grub2 but it doesn't recognise Fedora being present, ...
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1answer
268 views

Anti Aliased Fonts with NoMachine NX

I am running nx server on a headless ubuntu server. Its desktop is to Unix -> Custom -> Emacs which gives me an Emacs window on the local machine. The only thing that does not work as expected is the ...
0
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1answer
21 views

Unable to connect to git.denx.de

I am trying to download U-boot for beaglebone black using Ubuntu 12.04, for this I am using this command git clone git://git.denx.de/u-boot.git Now, after typing this command in terminal, for about ...
2
votes
1answer
3k views

ubuntu usb sound card sometimes recognized and sometimes not at boot

I have a linux ubuntu 12.04 server machine which works with an usb sound card. When rebooting the machine, sometimes the usb sound card is recognized and sometimes not, I cannot figure out a reason ...
2
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2answers
17 views

Writing content from a file to another file on set time intervals using delimiters

I'm trying to write a script in bash that reads a file file1 and writes to another file file2 every 2 seconds, which is easy enough. However, I want to write to file2 on either a line by line basis ...
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0answers
13 views

I have upgraded my system from Ubuntu 12.04 to 13.04,This Version is not work for Kvm [on hold]

Virtual machine manager connection failure: Unable to Connect to Libvirt. Internal error Unable to Locate Libvirtd daemon in /usr/sbin(to override, set $LIBVIRTD_PATH to the name of the libvirtd ...
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0answers
14 views

Moved Raid from NAS box to PC running Ubuntu hdparm shows drives frozen

So I had a RAID5 setup in a Partriot S4 Javelin (a NAS box). I'm now migrating it to a proper server running Ubuntu 14.04. NOTE: There are 4 drives. All the drives show up in Ubuntu. Two show ...
1
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1answer
15 views

Serial communication not working in both directions

I am working with a SOM mounted on a carrier board running Ubuntu 14.04 with the generic 3.13 kernel. While testing out the peripherals, I hit a problem with serial communication. Basically, I can ...
2
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0answers
29 views

Reading from /etc/environment with sudo

Using Ubuntu 14.04 LTS, I'm having a problem trying to read environment variables from /etc/environment when using sudo env. Basically, they are not being displayed. When I do just env, these ...
3
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0answers
19 views

Having some trouble authenticating via proxy in order to use apt-get successfully on a corporate network

Context Our server is on a corporate network, which requires corporate proxy authentication (e.g. enter corporate username and password). This is not an issue on the Windows machines on that network ...
0
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1answer
28 views

Consistent network interface name ubuntu using pci slot

One can set consistent interface naming via mac address by modifying /etc/udev/rules.d/70-persistent-net.rules. How do you establish consistent interface naming by PCI slot number? Is there any ...
2
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2answers
749 views

Configure multiple interfaces with different hostnames using DHCP and DNS

I have a machine running Ubuntu 12.04 Server with two interfaces connected (eth0, eth1) to the network. Our network is set up so that a FreeBSD based DHCP server hands out leases and registers the ...
1
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1answer
11 views

Interface Priority in the Face of VPN

I have a few interfaces: wlan0, eth0, lo, and sometimes tun0. When I connect to the Juniper VPN, creating a tun0 interface, my existing connections on other interfaces (perhaps with the exception of ...
0
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1answer
2k views

Linksys AE3000 install on linux

I bought a Linksys AE3000 wireless adapter hoping I could use it on my Ubuntu 12.04 box. I found a website that walked through using it, but it didn't work. I edited rtusb_dev_id.c to add: and then ...
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0answers
44 views

i3-wm not resizing screen resolution on login

I'm using Parallels for the Mac, but this may be relevant to other VMs too. Using Ubuntu 14.04, when I login using Unity it resizes the screen and uses all available screens (2 in my case), perfect. ...
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0answers
32 views

Installation problem on Ubuntu [on hold]

# sudo apt-get install -f dpkg: error processing /var/cache/apt/archives/linux-image-extra-3.8.0-19-generic_3.8.0-19.29_amd64.deb (--unpack): trying to overwrite ...
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0answers
26 views

kvm is not working on ubuntu 13.04 [on hold]

I have upgraded my Ubuntu 12.04 to 13.04,This Version is not work for Kvm. I got some error: Virtual machine manager connection failure: Unable to Connect to Libvirt. Internal error Unable to ...
8
votes
3answers
5k views

How can I track who SSH'es into my linux machine?

I'm running Ubuntu 10.04. Is there a way I can get a daily report of who has logged onto the box, what time, and even - this may be asking too much - a report of the commands they used? This is a ...
2
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2answers
959 views

Install Sublime Text 2 on Ubuntu

I installed Ubuntu Linux (via VMWare). I'm trying to install Sublime Text 2 on Ubuntu, so I entered these lines: tar xf Sublime\ Text\ 2.0.1\ x64.tar.bz2 sudo mv Sublime\ Text\ 2 /opt/ sudo ln -s ...
4
votes
1answer
578 views

Fedora 18 guest in VirtualBox 4.2: How to assign static IPv4 address to guest regardless of active ethernet interface on host

I have a Ubuntu 13.04 host running VirtualBox 4.2.12. This host has both a wired and a wireless network interface, but only one of which would usually be active at any given time. For example, at home ...
2
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2answers
147 views

Difficulty with EncFS on CentOS

I'm trying to figure out encfs, but am having some difficulty. This is what I have done so far: I created 2 test folders mkdir /home/oshiro/Desktop/encrypted mkdir /home/oshiro/Desktop/decrypted ...
5
votes
1answer
234 views

Can I set a gnome keyboard shortcut to be a prefix key, like in emacs, tmux or screen?

I would like to setup some Gnome keyboard shortcuts to be a prefix-key, so that I can add several shortcuts with the same prefix. Eg. I'd like to be able to have Super+x be a prefix key, with the ...
3
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0answers
16 views

In ubuntu, I cannot send two-byte commands over a usb serial port from within a C program [migrated]

I wish to write in C or C++ a program to control a Sony camera connected over a USB serial device (Applied Logic USB to LANC [0600]) running on my Virtual Box guest OS, Ubuntu 12.04. Through putty, I ...
3
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1answer
26 views

Ubuntu freeze after upgrade installation interrupt

I was upgrading my Ubuntu distro and shut down the laptop in the middle of the installation process. Upon restart, I only get a black screen with these messages: Starting Hardware RNG entropy ...
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0answers
29 views

Chromium does not Render webpage (arm)

I am trying to run Chromium (the browser) on a Ubuntu install within Android (ARM) and am facing a weird issue: Webpages are not rendering at all. Links etc within the page are still clickable, ...
0
votes
1answer
10 views

firefox bookmark updation

I bookmark a lot of pages everyday and I export them as well into a html file. The thing is whenever is bookmark a page can it automatically get updated or synced with the html file. I use Ubuntu ...
0
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3answers
236 views

How can I install a Linux distro to my DVD-RW?

I have got a DVD-RW on which I'd like to install some linux distros, but I've tried a few(Ubuntu 13.10, Crunchbang, ElementaryOS and some others, don't really remember), but they didn't work, which ...
0
votes
1answer
448 views

Which library files are needed to run a binary with an alternate libc version?

I built Firefox 26 on Mint 16 because the Ubuntu 10.04 build utilities are too old to build it. It does need to run on 10.04, however, since that's the target OS I'm building for. It built and runs ...
3
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1answer
423 views

BCache and disk encryption

I recently bought a new laptop with a 16Gb mSATA SSD cache drive. I haven't used that one yet. I have, however, opted for Ubuntu 13.04 with "Full Disk Encryption" for the main partition (is that ...
1
vote
3answers
3k views

GRUB-EFI installation fails while installing Kali Linux in external hard disk

I was trying to install Kali Linux from a live USB to an 1TB external hard disk. At first I was unable to boot the live USB with my H2O Insyde BIOS. Then I converted my pen drive partition table to ...
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2answers
1k views

Unable to connect INTEX 3.5G (aka 普创E003) Wireless USB modem in Ubuntu 12.04 LTS

Can anyone help me out on connecting INTEX 3.5G 7.2 Mbps (aka 普创E003) Wireless USB modem in Ubuntu? Initially it is recognized as a storage device and the modprobe cmd does not create any impact on ...
2
votes
2answers
2k views

Guest OS Ubuntu 12.04 no network connection

Recently added a new *.VDI image with Ubuntu 12.04 to my existing VirtualBox. The machine hangs with a "Waiting for network configuration" error, eventually times out after 60 seconds and boots in ...
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0answers
24 views

How to change position of unity launcher in Ubuntu?

How can I change the position of unity launcher?
1
vote
1answer
30 views

How can I recreate a VT100 environment and connect an Esprit 250C Terminal?

I have an Esprit 250c Modular Color RS/232 Terminal "Intelligence Unit" ( overview here, and pdf of features here ) I would like to make it work as a text-based tty terminal, maybe VT100 as it ...
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vote
4answers
3k views

Change sampling rate in ALSA

I'm a Computer Audiophile, I've used Windows (with ASIO4ALL)and OSX for Audio. Now I'm making Ubuntu 13 my HTPC/Stereo Audio. To begin with I disabled Pulse audio and using GooMusicplayer with ALSA. ...
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votes
1answer
430 views

Ubuntu 12.04 32 bit is slow on Virtual machine

I have installed Ubuntu 12.04 32 bit os on my Virtual machine. I have allocated 2GB ram to it. But the VM is running very slow, and left side taskbar is not visible. When I place my cursor on the ...
0
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0answers
19 views

/etc/network/if-up.d/script not working when openssh-server file is in this folder? [closed]

When I install openssh-server, it puts a file in the /etc/network/if-up.d folder. This seems to prevent another script from running when the network is disconnected and reconnected. When I remove the ...
0
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1answer
248 views

Playing or converting .dv4 files in Linux

I need to find a way to playback a number of .dv4 files on Ubuntu 12.04 and Fedora 20, possibly after having converted them to a more conventional format. So far I have managed to convert the files ...
2
votes
1answer
871 views

Need to auto-login after logout on ubuntu

I've set up a kiosk using Ubuntu 12.04, and I'd like to have it autologin after a user logs out or if the screen locks, in case someone manages to get back to lightdm or tries to login to the ...