Questions dealing with Ubuntu's layout of files, permissions, and files that reside in special locations on disk.

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13
votes
1answer
18k views

Mount unknown filesystem exfat [closed]

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 32: mount: unknown ...
0
votes
2answers
26 views

Moving a Subdirectory folder and its file to a new partition

Please take a look into my partition :) I still don't know how to move the folder that mounted on old partition this is the screenshot I've to insert a new HDD to it, so the folder ...
21
votes
1answer
7k views

What is the rationale for the `/usr` directory?

What is the rationale for the "unix system resources", or /usr directory, as described here, which duplicates many of the directory names under the root directory /? My purpose: I'm installing Oracle ...
0
votes
0answers
25 views

Recovering encrypfs Encrypted Home from LiveCD [duplicate]

Background: I have this laptop that I installed ubuntu on a while ago, I think it was lucid lynx? I am currently more updated and on 12.04. Anyway at that point I didn't know the first thing about ...
0
votes
1answer
25 views

Virtual filesystem acting as a clone+difference of a master filesystem

At my company about 10 devs share an ubuntu dev server. We have separate code directories, but due to our database size (about 50 GB), it isn't practical to clone the mysql database for each ...
1
vote
2answers
44 views

Does fsck keep existing files?

This is a rather dumb question but my googling didn't give me any direct anwser. So I have a computer which ubuntu (12.04) filesystem has gone corrupted. Now I want to try to repair it with fsck from ...
0
votes
2answers
80 views

Is it safe to alias rm to safe-rm?

We are happy to use safe-rm as a replacement to rm, but is it considered safe to alias it? e.g. alias rm='safe-rm'
0
votes
1answer
46 views

Files being wiped by cloud storage services

When I move and rename files using Ubuntu One or Grive Tools, using an SSD, sometimes clients doesn't catch the change properly and delete or make to reappear missing folders. Why it could be that?
3
votes
3answers
3k views

Is it possible to check when a folder or a file is created?

I am looking for a way to check when a specific folder and also a specific file were created. Is it possible? My system uses the ext3 file system. Thanks a lot!
0
votes
1answer
48 views

I executed 'dd' on my /dev/sda and now I get “unknown filesystem” error

Yes, I know this error has been answered and solved many times; but I think I know the reason why this is happening (my bad), I just don't know how to solve it. I was formatting and flashing some USB ...
0
votes
0answers
15 views

Transfering files over from a windows mounted to ubuntu

I've mounted the windows partition via mount. I can access my files and look through them all, but when I try to transfer all the pictures only about 1000 transfer before it starts saying it is a ...
0
votes
1answer
43 views

How to unmount a USB flash drive (that is shared over SAMBA) without having to turn off SAMBA first?

I have a USB drive that is shared over the network via a SAMBA share. This is because the contents are to be managed by a remote user. Now, there is a local user with physical access to the USB ...
5
votes
1answer
964 views

Ubuntu installer thinks my drive is empty, does not see windows paritions

I am trying to install Ubuntu10.10 64bit. I just installed Windows 7 64bit moments ago. My drive is currently partitioned like so: 100MB Boot partition (automatically made by windows 7 installer) ...
10
votes
4answers
8k views

df shows all space taken, but du doesn't add up

I'm having a problem with Ubuntu 12.04 LTS. This is the second time I've encountered this problem in the last 3 weeks. The first time is described in this closed question on StackOverflow. The TL;DR ...
1
vote
5answers
5k views

How do I recover a BTRFS partition that will not mount?

The installation for 12.04 kept failing, and the solution was to have the installer ignore the btrfs partition that I have previously been using for /home. Now that it's installed, I've been trying ...
2
votes
1answer
44 views

Can't change the access time of a file

i cant change the access time of any file i create. i tried the touch -a, touch -ad, touch -t commands, but the access time in the stat utility stays the same. Can you please help me to modify the ...
1
vote
1answer
953 views

NTFS partitions hidden under EXT4 file system / partition…want to recover files from NTFS

I am new to ubuntu, but very impressed with the system. so one day i tried installing ubuntu 10.10 along with windows in dual boot first place it didnt get installed properly and during second attempt ...
8
votes
2answers
2k views

What is the double slash (//) directory?

I mistakenly typed cd // instead of cd /. To my surprise, current directory showed up as //. What is that directory? Why does it exist? apple@snipped $ pwd /home/apple apple@snipped $ cd / ...
22
votes
4answers
199k views

How to make read-only file system writable?

I am not sure since when the filesystem on my digital audio player has been changed to be read-only. I cannot copy files into it or remove files on it. Are there some possible reasons for the ...
0
votes
1answer
70 views

Ubuntu Server does not detect RAID HDD

I have formatted in a low level the hard disks of my computer. When I try to install Ubuntu Server I get this error message: [!!] Partition disks No root file system No root file system is defined. ...
0
votes
1answer
129 views

How to check if my installation of Ubuntu is alright?

I recently changed the size of the partition that contained my Ubuntu installation using Gparted from a live CD. I also moved it from one place to another. It was my first time and I hit the cancel ...
1
vote
1answer
11k views

Mount USB drive with write permissions for everyone or specific user

I know there are similar questions but I get some specific problem I can't overcome. I have: HDD split into two partitions. /dev/sdb1 and /dev/sdb2. sdb1 is NTFS and I don't need it. I need sdb2 ...
3
votes
2answers
167 views

How do you get Netflix-Desktop to run for multiple users?

Netflix-Desktop keeps telling me I do not have extended filesystem enabled on the guest account. I would like to allow my sister to watch Netflix on my laptop without giving her my password.
3
votes
2answers
232 views

Is there any way, to make Ubuntu resistant to corruption of data?

I was using Ubuntu 14.04 when due to power interruption, my computer was shut down. On reboot, it was corrupted and I lost all my data.I want to reinstall Ubuntu again, is there any way,other than ...
5
votes
2answers
15k views

Why can't i paste anything under the /usr/ folder?

I just wanted to install a theme for the start up screen and I have to copy some files over here to /usr/share/kde4/apps/ksplash/Themes/. But the answer i get is: Access denied. Could not write to ...
0
votes
2answers
127 views

How can I create a bootable USB from an ISO image?

I'm trying to make a bootable USB drive from an ISO file. I have been trying with WinUSB. In the WinUSB graphical interface my USB drive is not showing up, even though it auto mounts. So I'm trying to ...
0
votes
0answers
55 views

How to install all Gparted file systems?

When I open my Gparted and go to View -> File system support, I get this: How to remove all crosses and get all check marks instead, or in other words, how to install all missing file system ...
1
vote
0answers
61 views

Accidentaly formatted boot partition

I accidentally formatted the partition that contained the GRUB loader, so I cannot boot into Ubuntu 14.04 LTS. Background to the saga: I have an iMac with OSX and Ubuntu 14.04 LTS installed side by ...
2
votes
1answer
215 views

Sort files in directory by creation date(Birth)

In my Download folder I have a lot of files.I need first a way to arrange them by type second files with same type arrangement become by the type that i added(or can say downloaded or birth (if i am ...
0
votes
0answers
36 views

Install on a large btrfs partition with two sub volumes

I have a computer with a large btrfs partition containing two sub volumes / and /home. They are both compressed. There's also a separate swap partition. the /home partition has data on it and I hoping ...
0
votes
1answer
40 views

Can I install ubuntu 12.04 lts using ubuntu 14.04 lts trail version?

So my ubuntu 12.04 files are corrupted so i got ubuntu 14.04 on a flash drive and I am currently booting using the drive. So I was wondering is there and way by which I can reinstall ubuntu 12.04 lts ...
5
votes
6answers
20k views

How to partition my hard drive for Ubuntu use?

Till now I was windows user. From now on I want to use only Linux. I have 500Gb HDD. How do I partition it properly? I read that there is no right or wrong way, but still, I am confused. I did ...
3
votes
1answer
124 views

How to edit a protected file if I have no direct access to the filesystem?

I changed the brightness of my machine by editing the /etc/rc.local file and adding this line echo 10 > /sys/class/backlight/nv_backlight/brightness before exit 0. After reboot I can see that it ...
2
votes
1answer
65 views

Why does it take a long time to open certain small text files in Vim?

Why does it take a long time to open certain config files accessible only to superuser in Vim? For example: $ sudo vim /var/lib/polkit-1/localauthority/10-vendor.d/com.ubuntu.desktop.pkla It takes ...
28
votes
2answers
41k views

How do I install and mount an exFAT partition?

I have searched around here and with Google, and none of the instructions I have found work with Oneric. How do install exFAT and mount an exFAT partition in the latest release of Kubuntu?
1
vote
1answer
1k views

how clear/clean unneeded files or cache for my customized distro

Can you help me to find out how do I clear the Cache files or unnecessary or lib that can be updated on new ubuntu install i used "ubuntu 12.10" this my top size file/folder list: 4380MiB /usr ...
1
vote
1answer
58 views

Hardlink count inconsistent with matching files

On searching for files that have hardlinks on my Portable HDD using the following command: $ find . ! -type d -links +1 -ls | sort -n I get an output of the following form (there are hundreds of ...
8
votes
2answers
6k views

How do I create an encrypted file system inside a file?

Recently i've found this interesting tutorial: http://flossstuff.wordpress.com/2011/08/07/using-a-file-as-a-storage-device/ It explains how to create an empty file, format it as ext4, and mount it ...
0
votes
2answers
172 views

Can I Recover Firefox and Tor Bookmarks?

I will be going back to Windows, because after months of dealing with Linux, I realized it's not for me. In short, right now Linux won't present the login screen. There are things I want to save ...
0
votes
1answer
133 views

hwclock vs rcS.d/S11hwclock.sh what is the difference between the two?

Could someone kindly explain the difference between these two files? hwclock.sh rcS.d/S11hwclock.sh I understand these files are both to do with the motherboard clock, but i dont see the ...
-1
votes
1answer
72 views

Accidentally deleted etc/fstab [duplicate]

etc/fstab accidentally edited or deleted, I don't know. Please someone help me to solve this. I am new to Ubuntu. General error mounting filesystem. A maintenance shell will now be started. CONTROL-D ...
0
votes
2answers
95 views

What type of partition table and file system is required to make a live usb?

I see a bunch of stuff on using usb-creator to make a live usb for ubuntu which is great. What I don't see is what type of partition table and file system is required on the USB itself. Does it ...
17
votes
3answers
845 views

Is there a way I can rename Trash to Crap?

I was trying to Rename the folder Trash to Crap. I did this I first ran cd /home/username/.local/share/ Now my present working directory is /home/username/.local/share then when I typed ls I ...
2
votes
2answers
324 views

Where in linux file system can i see files of Hadoop HDFS?

I am a just data analyst hails from non cs background (not a hardcore system programmer) working on linux OS. While exploiting analysis using hadoop, a question was coming to my mind that ... / is a ...
2
votes
2answers
369 views

Broken /boot partition: input/output error

The Problem The issue I am facing is that I get the following error on boot, after I select Ubuntu in GRUB: Error: File "/vmlinuz-3.13.0-24-generic.efi.signed" not found. unaligned pointer ...
0
votes
1answer
60 views

plenty free inodes yet cannot write to disk

I have a 1TB ext4 SSD mounted as data drive on ubuntu server 12.04. I use it to store files and noticed that @55% use I cannot add any new files/folders (get 'no space left on device' error message). ...
3
votes
0answers
170 views

btrfs two Data sections and enospc error when trying to convert

I currently have a btrfs filesystem setup on an ubuntu 14.04 setup like this: # btrfs fi df /storage/ Data, RAID1: total=2.33TiB, used=2.32TiB Data, RAID0: total=2.00GiB, used=2.00GiB System, RAID1: ...
0
votes
0answers
536 views

Gradle using terminal with Android Studio install on Ubuntu 12.04

Can not get the terminal commands to work with gradle. I trying to get Gradle to work outside of Android Studio as a prelude to scripting up various flavors of my app. I got the flavors to build ...
2
votes
2answers
1k views

Why are boost package libs installed to /usr/x86_64-linux-gnu?

After running sudo apt-get install libboost-all-dev on ubuntu 14.04 amd64 desktop (Trusty Tahr), I found that all the libs are installed into /usr/lib/x86_64-linux-gnu/ instead of /usr/lib/ ...