I have a Alcor Micro Corp. Flash Drive 2GB pendrive which I would like to format using f2fs partition. I tried using gparted 0.18 to format it however, f2fs seems to be disabled.
Is it possible to format my pendrive using f2fs? If yes, how do I do it using gparted
P.S.: If it is not possible using gparted 0.18, alternatives are most welcome.
I understand that clicking "shut down" from the menu that comes up on clicking the cogwheel triggers the following command to be executed:
dbus-send --system --print-reply --dest=org.freedesktop.Hal /org/freedesktop/Hal/devices/computer org.freedesktop.Hal.Device.SystemPowerManagement.Shutdown
However, when I execute this command on a terminal, I get the following error:
Error org.freedesktop.DBus.Error.ServiceUnknown: The name org.freedesktop.Hal was not provided by any .service files
Is it because 14.04 uses some other service for shutting down, or am I doing something wrong?
Note: This question is in follow-up of:
I love doing things the command-line way and need to install some proprietary softwares that are available free of cost but have to be "bought" from the software center:
How do I install such softwares from the command-line?
I wanted to remove "Amazon" from my 14.04 and tried to follow the instructions given here:
However, even after logging off and loggin back in, I see that I get the updates to "Amazon":
"Online search results" have been disabled in Security and Privacy settings. I even tried to remove it from the software center by using the button provided in the above question which says there is no package named unity-lens-shopping. And if I again try to remove unity-lens-shopping from the terminal using sudo apt-get remove unity-lens-shopping, unity-lens-home is selected and nothing is actually removed and I get the following output:
Reading package lists... Done
Building dependency tree
Reading state information... Done
Note, selecting 'unity-scope-home' instead of 'unity-lens-shopping'
0 upgraded, 0 newly installed, 0 to remove and 29 not upgraded.
I just ignore the 29 packages to be upgraded, for now, should be unrelated(?)
Trying to remove unity-lens-home I get a E: Unable to locate package unity-lens-home error.
How do I completely remove the shopping app from 14.04 to stop receiving updates for this application?
I am using qemu-system-x86_64 to boot virtual machines on kvm running on Ubuntu 12.04 64-bit desktop. I have a few VM's that are currently running. I want to get the list of all VM's booted using qemu-system-x86_64 on this host machine, how do I get this list?
Specifications:
qemu-system-x86_64 version 1.0
linux 3.2.0-60-generic
P.S.: Just as a side note, I am aware of virsh -c qemu:///system list which would list all VMs booted using virsh. However, this does not seem to give the list of VMs booted using qemu-system-x86_64, it would be great if virsh command could list the VMs booted using qemu-system-x86_64.
How do I increase or decrease the playback speed in rhythmbox 3.0.1 the way its possible on VLC using [ and ] keys? I am fine if I need to install a plugin for this.
There is a similar question on LP, albeit it doesn't have answers:
I am trying to compile qemu from source to get my hands dirty with its development. I cloned the package from the repository. I extracted the tarball and started with the configuration using
./configure
when I got the following error:
ERROR: DTC (libfdt) not present. Your options:
(1) Preferred: Install the DTC (libfdt) devel package
(2) Fetch the DTC submodule, using:
git submodule update --init dtc
I tried installing libfdt using sudo apt-get install libfdt-dev but this did not resolve the error.
There is a similar question I have seen but this too could not solve the error I am facing:
How do I fix this error to successfully compile qemu from source?
Edit:
Executing git submodule update --init dtc while I am still in the qemu package's directory returned the following error:
fatal: Not a git repository (or any parent up to mount point /home)
Stopping at filesystem boundary (GIT_DISCOVERY_ACROSS_FILESYSTEM not set).
I need to login as a guest user via a terminal for experimental purposes for checking the working of one of scripts.
I know I can log in as a different user using su username or su - username. However, I can't log in using this command as su guest. I can auto-complete this as su guest-<some_id>, but this asks for a password I am unaware of.
How do I login, then, as the guest user?
Is there a way I can zoom in where the cursor is, while screencasting, something like this:
I presently using kazam on Ubuntu 12.10 64-bit for screencasting. Good alternatives which allow this feature are most welcome, but should allow for audio recording as well.
P.S.:
The original video here:
The screencaster I require should record video and not gif, the gif above is only for explaining what I need and is light-weight for AU.
I would like to have the screencaster have its own zooming ability and not application-specific zooming ability, i.e. I can zoom into Firefox using Ctrl++. However, this won't work with all applications, I would like the screencaster to have this ability in itself or a generic zooming ability.
I am trying to setup virtio-serial to communicate between a virtual machine and its host. For this, I am following the instructions given here:
I understand that there is a port on the host at tmp/foo on the host which is exposed as a special character device at /dev/hvc0 on the guest. The instruction manual asks to use socat on the host and agetty on the guest to spawn the console ports.
However, on using agetty, I do not get any console port, whereas, on using socat on the guest as well, I can communicate with the host.
I would like to know what are the primary differences between socat and agetty and whether this is the correct way to use socat, considering /dev/hvc0 is a special character device.
I have given a look at the manual pages of both and would like a detailed description.
I have installed KVM using the instructions given on the wiki. However, when I try to check its version using
kvm --version
what I get as output is this
QEMU emulator version 1.2.0 (qemu-kvm-1.2.0+noroms-0ubuntu2.12.10.5, Debian), Copyright (c) 2003-2008 Fabrice Bellard
which I believe is QEMU's version, not KVM's.
I have tried the method given here, but this does give an output.
I wanted to know what is the correct method to get the version of KVM I am running.
Specifications:
I am behind a proxy server and need to specify authentication parameters to access the internet. For this, I have exported my username, password, host and port_no in my /home/$USER/.bashrc file and in /etc/apt/apt.conf file, which are human readable.
for Example
Acquire::http::proxy "http://<username>:<password>@172.16.0.2:8080";
Acquire::ftp::proxy "ftp://<username>:<password>@172.16.0.2:8080/";
Acquire::https::proxy "https://<username>:<password>@172.16.0.2:8080/";
This causes my password to be openly visible to anyone who has read access to these files.
Is there a secure way of passing these parameters to the applications that need proxy authentication parameters without having to write in such human readable form?
Note: It would be good to know of permanent methods. I know I can do this temporarily by exporting each time I open a new session. But I will have to do this everytime I open a new session, which I want to avoid.
Have Googled for this but couldn't find a way to re-install riched20.dll I installed to install a Windows application (I don't remember the application) some days ago.
Is there anyway(command-line or via the GUI) to remove and/or re-install dll's installed in winetricks?
Specifications:
Ubuntu 12.10
winetrics 20120912
I was trying to install Adobe flash plugin for Firefox 24.0 on Ubuntu 12.04 for which I executed sudo apt-get install ubuntu-restricted-extras and I got the following messages:
What suprises me is the packages it is downloading: .exe Is this normal?
VLC was working fine until this happened: The menu bar is no more visible. I don't remember making any configuration changes, though I have tried to revert them, if any with the help of this question:
Attaching a screenshot of the problem I am talking about:
The menu bar is visible from all other applications I use regularly. Also, I am able to access the menu options using Alt + M/H/A/V, but this is very inconvenient.
How do I make it visible again?
Specifications:
Before extracting an ISO image onto a USB device using Startup Disk Creator, when I try to erase the USB device using the same software, I always get the following error:
I have tried to erase various USB devices without success, so I believe this is not a device-specific problem. I see that a bug on this has been filed on launchpad, though an alternative/solution/word-around has not been suggested.
Is there a way to solve this error, without using other softwares to erase disk?
System specifications:
I have a qcow2 file on my filesystem and I am trying to find the size of that file.
For this, when I do a ls -l in the location where the file is stored, I get 13041664, which means the file size is around 13 MB and when I do a file <filename>, I get:
disk: QEMU QCOW Image (v2), has backing file (path
/var/lib/nova/instances/_base/035db99541e92b5cca93bf18a997d626f), 21474836480 bytes
which, I presume, says the filesize is around 21 GB.
Is this my misinterpretation of the command output or is something else going on inside the filesystem(thin provisioning kind of thing)?
UPDATE: When I do a ls -l on var/lib/nova/instances/_base/035db99541e92b5cca93bf18a997d626f, I get a ls: cannot access /var/lib/nova/instances/_base/035db99541e92b5cca93bf18a997d626f: No such file or directory and its correct that I have no file there
UPDATE 2: The output of qemu-img info <filename> is as follows:
image: disk
file format: qcow2
virtual size: 20G (21474836480 bytes)
disk size: 12M
cluster_size: 65536
backing file: /var/lib/nova/instances/_base/035db99541e92b5cca93bf18a997d626f512b73d (actual path: /var/lib/nova/instances/_base/035db99541e92b5cca93bf18a997d626f512b73d)
I had enabled "hibernate" option in my Ubuntu 12.10 few months back by adding the following lines to /etc/polkit-1/localauthority/50-local.d/com.ubuntu.enable-hibernate.pkla:
[Re-enable hibernate by default]
Identity=unix-user:*
Action=org.freedesktop.upower.hibernate
ResultActive=yes
However, I don't know how, rather don't remember what led to it being disabled both in "power options" and in the "gear icon" on the menu bar.
The file is still intact.
One of the things I suspect is removing old kernels using Ubuntu tweak, but have no valid reason to allege this :P
When a new package is installed (even from source), or existing ones are updated/deleted/purged, some system files seem to be updated. Which are these?
I want the files which contain the list of these packages and their status, not the packages themselves.
EDIT: A few of the files I came to know are /var/lib/dpkg/status and /var/lib/dpkg/status-old which get updated when you install a new package. I just want an exhaustive list of all these files.
I use Ubuntu 12.10 and Unity theme.
I wanted to change some of the labels like Shut Down... to Turn Off or something else. Wanted to know where such labels are stored so I can could change a few of them. Is it possible to edit a few files and get this change done?
Thanks in advance.