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1500 questions
457
votes
3 answers
Mount error: "unknown filesystem type 'exfat'"
When trying to mount an exfat filesystem, I get the following error: Error mounting /dev/sda6 at /media/gkp/Backup: Command-line `mount -t "exfat" -o "uhelper=udisks2,nodev,nosuid" "/dev/sda6" "/media/gkp/Backup"' exited with non-zero exit status…
Ganesh
- 4,579
457
votes
10 answers
Convert a directory of JPEG files to a single PDF document
I have many JPEG files in a directory, and I want to convert them to PDF and concatenate them together to make a single document. How can this be done? I would prefer using the command line, as this process will be faster.
lovespeed
- 4,721
453
votes
22 answers
Trouble downloading packages list due to a "Hash sum mismatch" error
When I check for updates, I get a "Failed To Download Repository Information" error. This is what comes up under details: W: Failed to fetch gzip:/var/lib/apt/lists/partial/us.archive.ubuntu.com_ubuntu_dists_natty_main_source_Sources Hash Sum…
Rob
- 12,950
453
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?
rakshith
- 1,239
451
votes
9 answers
How do I install Python 3.6 using apt-get?
I've tried the normal way, sudo apt-get install python3.6 , but... well... that didn't work. So, how would I go about it? (I'd preferably not build it on my own) I'm using Ubuntu 16.04.
Olian04
- 4,653
446
votes
6 answers
How to downgrade a package via apt-get?
How can I downgrade a package to an older version via apt-get ? Other tools are also acceptable but apt-get is preferred.
user61928
444
votes
15 answers
How do I start applications automatically on login?
How can I make an application automatically start when I have logged in?
Lincity
- 25,809
443
votes
15 answers
How do I install fonts?
How do I install fonts on Ubuntu Linux? I need them to be available in gimp.
myusuf3
- 35,799
435
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
- 4,911
434
votes
10 answers
How to enable hibernation?
In Ubuntu 12.04 and newer, hibernation has been disabled by default in policykit . How can I enable this back?
Dima
- 9,965
434
votes
8 answers
How to download an MP3 track from a YouTube video
There are several Q&A threads that explain how to download youtube videos using the terminal. However, I would also like to learn how to extract the video's soundtracks as MP3 files--also using only the terminal. Answers briefly explaining how to…
siraj
- 5,407
429
votes
11 answers
How can I view the contents of tar.gz file without extracting from the command-line?
I want to see the contents (list of files and folders) of an archive, for example a tar.gz file without extracting it. Are there any methods for doing that?
Avinash Raj
- 80,616
428
votes
12 answers
How can I stop being prompted to unlock the 'default' keyring on boot?
Whenever Ubuntu boots up, a dialogue pops up asking me to unlock my default keyring. Is there some way this can unlock automatically through PAM or some other magical way?
Oli
- 299,936
428
votes
25 answers
How to get the GPU info?
I'm looking for a command that would give me the same info as: cat /proc/cpuinfo Except for the GPU (type of the chip and memory, frequency).
user2413
- 15,047
427
votes
7 answers
How to disable strict host key checking in ssh?
I would like to disable strict host key checking in ssh for Ubuntu 11.04. How to do it?
karthick87
- 84,713