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534 votes
33 answers

My computer boots to a black screen, what options do I have to fix it?

I am trying to boot Ubuntu on my computer. When I boot Ubuntu, it boots to a black screen. How can I fix this? Table of Contents: If you are trying to install Ubuntu If you have a dual boot system ...
580 votes
12 answers

How do I install Ubuntu alongside a pre-installed Windows with UEFI?

I'm absolutely new to Linux. I would like to know how to install Ubuntu alongside the pre-installed Windows 8+ OS. Should I do it with Wubi, or through the Live USB/DVD? What steps do I need to take ...
179 votes
3 answers

How do I install Ubuntu?

I would like to see a full how-to guide on how to install Ubuntu.
user avatar
665 votes
14 answers

How do I resolve unmet dependencies after adding a PPA?

Occasionally, when I'm installing stuff, I get an error like the following: Some packages could not be installed. This may mean that you have requested an impossible situation or if you are using the ...
jrg's user avatar
  • 60.5k
402 votes
43 answers

Installing Broadcom Wireless Drivers

I'm having serious problems installing the Broadcom drivers for Ubuntu. It worked perfectly on my previous version, but now, it is impossible. What are the steps to install Broadcom wireless drivers ...
510 votes
12 answers

How to install software or upgrade from an old unsupported release?

Recently I have installed an older version of Ubuntu on my old machine. Whenever I try to install any software, I get an error saying it couldn't be found: $ sudo apt-get install vlc Reading package ...
made_in_india's user avatar
484 votes
7 answers

How do I report a bug?

I found a problem with an application on Ubuntu. Questions : How do I best report the issue? What sort of information should I provide?
andrewsomething's user avatar
424 votes
14 answers

How can I repair grub? (How to get Ubuntu back after installing Windows?)

I installed Windows 7, which ate Ubuntu's boot file. When starting up the computer, it now goes straight to Windows, without giving me the option of booting Ubuntu. How can I get Ubuntu back?
Salahuddin's user avatar
  • 4,791
146 votes
4 answers

How to resize partitions?

Previously, I have installed Windows 7 on my 320 GB laptop with three partitions 173, 84 and 63 GB each. The 63 GB partition was where the Windows was installed. The rest were for file containers. ...
Johannes's user avatar
  • 1,479
374 votes
16 answers

Unable to correct problems, you have held broken packages

After upgrading from 10.04 to 12.04 I am trying to install different packages. For instance ia32-libs and skype (4.0). When trying to install these, I am getting the 'Unable to correct problems, you ...
trond's user avatar
  • 3,765
166 votes
8 answers

How do I find out which version and derivative of Ubuntu is right for my hardware in terms of minimal system requirements?

For a given hardware configuration, how do I find out if Ubuntu will run on it? What considerations should I take into account when choosing an Ubuntu version and flavour such as: Xubuntu with a ...
con-f-use's user avatar
  • 18.8k
217 votes
18 answers

How to remove Ubuntu and put Windows back on?

I have absolutely no experience with Linux, and I desperately need to get my computer back up and running again with Windows. How do I remove Ubuntu and reinstall Windows? Editor's note: many of the ...
202 votes
5 answers

What can I do if a repository/PPA does not have a Release file?

When updating, I get the following error message: W: The repository ' xenial Release' does not have a Release file. Here, I find another statement ...
Addem's user avatar
  • 2,293
122 votes
3 answers

My wireless/WiFi connection does not work. What information is needed to diagnose the issue?

Your situation You have successfully installed Ubuntu. You have just downloaded and booted Ubuntu live media. The latest LTS (see also HWE) or latest non-LTS release are preferred. See the list of ...
Wild Man's user avatar
  • 8,167
217 votes
5 answers

How do I restore the default repositories?

There are now errors when updating and I cannot install most software due to a corrupted /etc/apt/sources.list file. Is there a copy I can download to replace it? The file would be for Ubuntu 12.04 ...
Andy Castille's user avatar
313 votes
9 answers

How can I fix a 404 Error when using a PPA or updating my package lists?

PPA seems to be constantly offline. Whenever I use sudo apt-get update, this error is shown: W: Failed to fetch 404 Not Found How do I fix these errors?
Pedro's user avatar
  • 3,131
802 votes
16 answers

How do I reset a lost administrative password?

I'm working on a Ubuntu system, and my client has completely forgotten his administrative password. He doesn't even remember entering one; however it is there. I've tried the suggestions on the ...
user avatar
573 votes
52 answers

Ubuntu gets stuck in a login loop

My Ubuntu is stuck in a login loop when trying to enter my desktop. When I login, the screen gets black and soon after that the login screen comes back. I've read that the problem might be caused by ...
Calvin Wahlers's user avatar
565 votes
35 answers

Unity doesn't load, no Launcher, no Dash appears

When I login, nothing happens. I am presented with my desktop wallpaper. No Dash, no Launcher, nothing.
jrg's user avatar
  • 60.5k
384 votes
23 answers

Unable to mount Windows (NTFS) filesystem due to hibernation

Whenever I boot Ubuntu, I get a message that it cannot mount my windows partition, and I can choose to either wait, skip or manually mount. When I try to enter my Windows partition through Nautilus I ...
yotamoo's user avatar
  • 4,219
246 votes
4 answers

How do I enable the "Universe" repository?

How do I get to the Universe Repository in supported versions of Ubuntu?
Dr.C.Badrinathan's user avatar
319 votes
6 answers

How to use manual partitioning during installation?

I'd like to see the full How-To on how to use manual partitioning during Ubuntu installation. The existing guides (at least those I found here) cover only automatic part and leave untouched the manual ...
Danatela's user avatar
  • 13.2k
189 votes
23 answers

How do I install Ubuntu to a USB key? (without using Startup Disk Creator)

If you are hurrying to reply, System → Administration → StartUp Disk Creator -- no, that's not what I'm talking about. I want to try Ubuntu 11.04's Unity without touching my existing Ubuntu install. ...
badp's user avatar
  • 12.3k
199 votes
6 answers

dpkg error: "trying to overwrite file, which is also in..."

For example: $ sudo apt-get install curl Reading package lists... Done Building dependency tree Reading state information... Done You might want to run 'apt-get -f install' to correct these: The ...
missingfaktor's user avatar
302 votes
24 answers

How can I install software or packages without Internet (offline)?

I have a friend who has got a computer that is not connected to the Internet. Is there any way to install software offline easily?
akshatj's user avatar
  • 13.2k
614 votes
15 answers

How do I fix the GPG error "NO_PUBKEY"?

I added some extra repositories with the Software Sources program. But when I reload the package database, I get an error like the following: W: GPG error: trusty InRelease:...
Agmenor's user avatar
  • 16.2k
1170 votes
25 answers

Unable to lock the administration directory (/var/lib/dpkg/) is another process using it?

I get this error when trying to use apt-get: E: Could not get lock /var/lib/dpkg/lock - open (11 Resource temporarily unavailable) E: Unable to lock the administration directory (/var/lib/dpkg/) is ...
La Ode Adam Saputra's user avatar
59 votes
3 answers

How do I recover my accidentally lost Windows partitions after installing Ubuntu?

I have a Toshiba satellite A-200 laptop with a Vista OS on it with 4 NTFS partitions (C:) Vista (D:) Entertainment (E:) Work (F:) Sources and I wanted to start using Ubuntu instead. So I tried it ...
Totally newbie's user avatar
748 votes
47 answers

What should I do when Ubuntu freezes?

All operating systems freeze sometimes, and Ubuntu is no exception. What should I do to regain control when... just one program stops responding? nothing at all responds to mouse clicks or key ...
ændrük's user avatar
  • 76.5k
88 votes
9 answers

How do I remove a malformed line from my sources.list?

I have unistalled and reinstalled the Ubuntu Software Center as per info I found in a similar thread and I got the same response about line 91 or something like that. I just tried to upload a screen ...
eminencejae's user avatar
52 votes
20 answers

Unable to boot into Windows after installing Ubuntu, how to fix?

I installed Windows on my computer, followed by an installation of Ubuntu. However, now I'm unable to boot into my Windows install. What can I do to fix this?
Vishnu Bathala's user avatar
133 votes
18 answers

Can I skip over releases when upgrading?

I am currently using Ubuntu 10.04. I know there is a 10.10 release, but can I upgrade directly to 11.04? Could you walk me through the steps please?
Jared Reyes's user avatar
  • 1,341
50 votes
1 answer

Will my device work with Ubuntu?

I have a device on which I would like to install Ubuntu. How do I find out if Ubuntu will work on it?
549 votes
10 answers

What are PPAs and how do I use them?

I keep reading about Personal Package Archives ('PPAs') and people answer questions with a link to a PPA. What's the best way to use these? There are multiple valid answers for this question ...
118 votes
8 answers

What are the system requirements for each flavour of Ubuntu Desktop?

I'm thinking about installing Ubuntu Desktop, but I don't know what flavor is the best for my system. What are the minimum and recommended hardware requirements? What kind of CPU? How much memory? ...
180 votes
14 answers

How do I install the Nvidia drivers?

I just ordered the Nvidia GTX card. I have a dilemma, though. Should I keep using the driver which is available in "additional drivers" in Ubuntu, or should I install the driver from the Nvidia site? ...
Frantisek's user avatar
  • 8,898
195 votes
6 answers

Why don't the Ubuntu repositories have the latest versions of software?

Why are packages in the official Ubuntu repositories older than the latest (upstream) versions from Debian Sid, PPAs, the authors, etc.?
Thomas Ward's user avatar
  • 74.1k
132 votes
14 answers

What hardware does Ubuntu Touch support?

With the announcement of the Ubuntu Phone OS I'd like to know what phone (and tablet) models are supported at this time. Note from foss & Oli: We are making this the master question for all ...
Marco Ceppi's user avatar
285 votes
15 answers

How can I install Windows after I've installed Ubuntu?

I have Ubuntu on my laptop. Now I want install Windows 7 in a dual-boot. How can I do this? I can't lose my Ubuntu files, and I'm afraid that I might break GRUB. Editor's note: Current readers should ...
Sk8er's user avatar
  • 3,909
185 votes
8 answers

I have a hardware detection problem, what logs do I need to look into?

I am trying to ask a question about getting my hardware to work but I don't know what information to add to my question to get help, what do I need to do? Related if you don't have access to a GUI: ...
Jorge Castro's user avatar
  • 71.5k
683 votes
14 answers

How do I install a .tar.gz (or .tar.bz2) file?

I have downloaded tar.gz files. But I don't know how to install it. How do I install this kind of file?
Silambarasan's user avatar
  • 7,895
454 votes
12 answers

How do I upgrade to a newer version of Ubuntu?

What are the different ways I can use to upgrade Ubuntu from one release to another?
642 votes
24 answers

How do I free up more space in /boot?

My /boot partition is nearly full and I get a warning every time I reboot my system. I already deleted old kernel packages (linux-headers...), actually I did that to install a newer kernel version ...
user6722's user avatar
  • 6,695
541 votes
18 answers

How can I create a Windows bootable USB stick using Ubuntu?

I'd like to create a Windows bootable USB stick, but I don't have a Windows machine at the moment to do so. How can I achieve that using Ubuntu?
Zignd's user avatar
  • 10.8k
297 votes
46 answers

How to fix "The system is running in low-graphics mode" error?

Note: This is an attempt to create a canonical question that covers all instances of "low-graphics mode" error that occurs to a user, including but not limited to installation of wrong ...
36 votes
7 answers

What is the proper way of creating installation media from Ubuntu iso?

This is the third time I've tried to install Ubuntu Server 14.04.03 64-bit on the same laptop, and each time it caused different problems. Each time I wrote the same iso image to a USB flash drive by ...
emrecnl's user avatar
  • 850
339 votes
9 answers

Are PPAs safe to add to my system and what are some "red flags" to watch out for?

I see a lot of interesting programs out there that can only be obtained by adding a "PPA" to the system but, if I'm understanding correctly, we should stay within the official "repositories" for ...
Rob's user avatar
  • 12.8k
220 votes
17 answers

How to customize the Ubuntu Live CD?

I would like to customize Ubuntu live CD by installing some additional packages. I have followed the Ubuntu help wiki guide but it doesn't seem to work. Can anyone provide clear instructions? I'm not ...
karthick87's user avatar
  • 81.7k
108 votes
18 answers

How can I install Windows software or games?

Can .exe and .msi files (Windows software) be installed in Ubuntu?
akshatj's user avatar
  • 13.2k
104 votes
11 answers

How do I install applications in Ubuntu?

How can I install applications like Google Chrome on Ubuntu? Are there any commands to install an application? Index of answers: Basic usage of APT, Synaptic Package Manager and Ubuntu Software ...
udaykumar's user avatar
  • 1,453

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