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

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0
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1answer
16 views

How do you Identify apps or procs that create large tmp files?

I am having problems when using GNS3 on a Win7 host running a VMware Workstation Ubuntu VM. Not sure what app or process is creating large 3+GB temp files filing up my drive. How can tell. Below is ...
1
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3answers
6k views

How do I access the file system as a root or owner?

I need to add online store configuration files in file system var/www. but I can't access the file system, because it says that only owner can access it, the owner is root. So, how can I access those ...
-1
votes
1answer
276 views

Low disk Space in Root Filesystem Error

The system gives me the following error: The volume "Filesystem Root" has only 713.9 MB disk space remaining. You can free up disk space by removing unused programs or files, or moving files to ...
19
votes
5answers
5k views

Find directories with lots of files in

So a client of mine got an email from Linode today saying their server was causing Linode's backup service to blow up. Why? Too many files. I laughed and then ran: # df -ih Filesystem Inodes ...
115
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5answers
113k views

How is the /tmp directory cleaned up?

How is the /tmp directory cleaned up? Is it automatic? If so, how frequently is it cleaned up?
0
votes
2answers
93 views

Unable to write to ext4, No space left on device?

After creating a folder in my ext4 partition, copying some data to it, then moving that whole folder to another drive, I became unable to add additional data to the ext4 partition when I boot into ...
0
votes
1answer
36 views

Proper Linux filesystem from Ubuntu ISO file

It is known that one can install a Ubuntu iso file on a usb or hard drive, which itself yields the proper Linux filesystem which consists of folders: bin/ boot/ dev/ etc/ home/ lib/ media/ mnt/ opt/ ...
0
votes
1answer
29 views

Resizing filesystems

I have following filesystems on my Ubuntu 12.04: u@czarnobog:~$ df -hT Filesystem Type Size Used Avail Use% Mounted on /dev/mapper/md1-md1 ext4 31G 27G 2.7G 91% / udev ...
0
votes
1answer
142 views

Why the file has 0755, but 'Permission denied'?

Why the file has 0755, but I got an error 'Permission denied'? root@vagrant-ubuntu-trusty-64:~/.rbenv/versions/2.2.0/bin# ls -la total 14000 drwxr-xr-x 2 root root 4096 Feb 9 20:25 . drwxr-xr-x ...
0
votes
0answers
31 views

Change permissions of / of mounted disk

I've accidentally changed the permissions of /on my system, thus obviously nothing is working anymore now. I can access my server via a rescue system and mount the disk. How can I fix the ...
1
vote
2answers
4k views

I can't access my device partitions?

I can't access my files in other partitions even if I mounted them by mount /dev/sda12? How can I solve this problem? on Using cat /etc/fstab /etc/mtab I got the following output. /etc/fstab: ...
0
votes
1answer
77 views

How to remove disk lock [closed]

I have installed ubuntu 14:04 version, I already write the password on the disk. turns out it was too long for me, I want to disable it, how? I am a beginner, need an answer
3
votes
1answer
926 views

'mount -t ntfs-3g' Fails (exit code 1) but 'ntfs-3g' Succeeds

I'm currently on 12.04LTS and I've installed a couple of updates. (not sure which) Now my nautilus cannot mount any NTFS partition (complaining about exit code 1), and indeed sudo mount -t ntfs-3g ...
0
votes
1answer
54 views

How to get rid of more than one million ghostfiles?

I periodically run Bleachbit 1.0 on my Lubuntu machine (kernel 3.13.0-35-generic). Last time, I checked the option to wipe free disk space, mainly to try it. The program got stuck on a message saying ...
0
votes
0answers
25 views

Missing Files-my “music” folder is lost

I am using 14.04 version of ubuntu,when I opened my files I found my music folder was missing.Clicking on it says somthing spelling error.I have not yet done partition i.e I have no drives,there all ...
0
votes
1answer
49 views

mount boot camp partition

I have my hard drive from my mac it has a boot camp patition, but the mac is dead. Ubutnu sees the partition, calling it /dev/sdc3 and reporting that it has a basic linux data partition. I tried to ...
0
votes
3answers
44 views

How to select a file without opening it?

This is probably a quite trivial question, but I cannot seem to find the answer on-line. I set my file browser to single click opening as it is easier to work with, but, since clicking opens the file ...
0
votes
1answer
57 views

how to automount sda2 partition

How do I mount sda2 from sda1? thufir@doge:~$ thufir@doge:~$ sudo parted -l Model: ATA ST500DM002-1BD14 (scsi) Disk /dev/sda: 500GB Sector size (logical/physical): 512B/4096B Partition Table: msdos ...
0
votes
0answers
69 views

Ways of resolve case conflict when moving files to a Dropbox folder

As documented here, Dropbox appends (Case Conflict) to a file moved in ubuntu to a dropbox folder already containing a file of the same name (ignoring case). I would like to set up alternative ways ...
0
votes
0answers
34 views

How do i change the mount point of a file system? is it safe?

My file system structure looks as follows Filesystem 1K-blocks Used Available Use% Mounted on /dev/mapper/vg_root-lv_root 38929872 36450548 503672 99% / tmpfs 4025936 ...
26
votes
2answers
17k views

How to open Nautilus at current command line directory?

I was wondering if anybody knew a command that would allow me to open a Nautilus (if that's the right name for the Ubuntu 12.04 graphic/window explorer) window from the command line at the current ...
1
vote
1answer
34 views

Need help deleting a directory

I have a directory in my home directory (the one with My Documents, etc.) with a name that looks a bit like my username (random upper-lowercase alphabetical characters). It suddenly appeared Tuesday, ...
4
votes
3answers
5k views

How to navigate to connected iPhone? Filesystem path to `afc://`?

When I connect my iPhone to Ubuntu 11.10, it gets automounted as afc://ca60751cc4b1ebb427c2f9da324914b0643a21f8/ and I can see that there are photos stored in ...
0
votes
1answer
45 views

How to check for any activity on a physical disk?

I have an SD card that's connected via a USB interface. The output of fdisk -l indicates the following: Disk /dev/sdb: 3965 MB, 3965190144 bytes I have a script that re-initializes multiple ...
0
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0answers
11 views

Is there a “session-wise” filesystem encryption?

AFAIK, there are partition encryption, or filesystem encryption like ecryptfs. But both of them only ask permission when mounting. By which I mean, once I mounted them, any other users could access ...
5
votes
3answers
2k views

Which union filesystem is best supported?

I'm interested in knowing the answer to this unanswered question from the Ubuntu Forums: I am trying to get one folder to display the content of two other folders. ... I am a bit troubled by ...
4
votes
2answers
424 views

Cannot mount second drive at “/”

I have a second drive that I want to be mounted at the root. The drive contains the following folders: /home /shared I want those two folders to be accessible at "/". I can mount the drive at ...
237
votes
7answers
211k views

How do I determine the total size of a directory (folder) from the command line?

Is there a simple command to display the total aggregate size (disk usage) of all files in a directory (folder)? I have tried these, and they don't do what I want: ls -l, which only displays the ...
8
votes
3answers
9k views

New ext4 partition and used space

I have fresh ext4 partition, which means I just formated it with mkfs.ext4 -m 0.1 /dev/mapper/abak-home, and there's already 27G space used. Setting reserved root space (-m) to 0 didn't have any ...
0
votes
1answer
42 views

Can't alter/change access rights

I've downloaded some gopro footage to my local hd and then copied the files from my hd to an external drive. Whenever I want to change the access rights it will switch back to read only in Nautilus. ...
0
votes
1answer
70 views

Can't create files on desktop in Ubuntu 14.04

I accidentally created a desktop shortcut in my home directory. To remove it, I did sudo rm -rf Desktop Now I can't create files and folders on my desktop.
8
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8answers
7k views

How to create an encrypted partition?

I am trying to create an encrypted partition, and while I format it I get the option to choose the partition type (fat/ext2/ext3/ext4/xfs/reiserfs/minix/ntfs). Is there any benefit of choosing one ...
0
votes
0answers
341 views

help resolve fatal error: sys/cdefs.h: No such file or directory # include <sys/cdefs.h>

I am trying to install wrf-chem on my 14.04 LTS and got the following error messages when i tried to run the test below.please help. Test #4: Fortran Calling a C Function (our gcc and gfortran have ...
9
votes
2answers
7k views

How do I create an encrypted filesystem 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
482 views

Does the ls command work differently on a (ubuntu 14.04.10) server? I can't figure out how to explore my files

all. Very new to linux, but I thought I understood file exploration from the command line. The problem: I can't figure out how to navigate my files or directories, the console isn't displaying any ...
0
votes
1answer
134 views

extract files from filesystem.squashfs file

I have installed Xubuntu on a USB stick and created some files. Later there was a problem with Xubuntu, so I made a backup and re-installed it. The wayt I made the backup, isn't exacly the right way ...
1
vote
1answer
809 views

Problem with NIS configuration

I tried to configure NIS in a server and a client both running Ubuntu 14.04 following this guide and this official guide. After a reboot the client machine got locked with this message several times ...
0
votes
2answers
27 views

Is there a filesystem that writes everything to nothing?

The user case is that a program writes files which I do not want to preserve to a dedicated folder. So is there a filesystem that drops write request but returns OK/done?
0
votes
1answer
36 views

What is the safest method for repartitioning space from the / partition? [closed]

I've got a 240GB SSD that I'm using as my boot/applications drive and only have Ubuntu 14.04 installed, so no finagling with Windows or OS X installs. I originally partitioned off 40GB of that 240GB ...
0
votes
1answer
31 views

How to migrate to a newer hard disk?

I am using Ubuntu 14.04 LTS and as I am very new to Linux I don't know how to copy my entire setup to a new disk. I have prepared a 500gb Hard disk drive with 5 partitions. I'd like to move my ...
0
votes
1answer
21 views

Safely move (rarely changing) operating system directories to SSD drive

I would like to move some directories that contain binaries to an SSD drive. How should I safely go about it? /usr /opt Please consider safely emphasized. [14.04.1]
1
vote
1answer
151 views

Where does CHEESE store its images?

I have taken some pictures using CHEESE, but now I cannot locate those images, so I can do nothing with them. I can't even delete them for the CHEESE GUI does not allow me to do anything with the ...
0
votes
1answer
442 views

Why do I not see my /bin, /var, (etc.) directories in my root partition?

I recently bought a VPS and when I log in as a root user, I dont see the /boot, /bin, /var, etc. directories. Why is this? This is what I see when I use my ls -la command in the terminal. I am the ...
0
votes
1answer
17 views

Saved document doesn't inform user about no-saving the information

I supported a person who received a .doc in Thunderbird as an email attachment, opened it, filled in a form and saved it. But the user couldn't find it anywhere. Thing is that is was saved in /tmp . ...
0
votes
0answers
45 views

Increased partition size of virtualbox installation succesfully; can't address extra space

and thanks in advance for reading. So I installed Ubuntu desktop (version 14.4) on my 64 bits Oracle VirtualBox (version 4.3.20). All fine. I gave it 10 GiB's of space. Also fine. Run it on an i7 and ...
2
votes
2answers
4k views

Why are boost package libs installed to /usr/lib/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/ ...
0
votes
2answers
101 views

How to show the full path of a file or directory in the terminal? [duplicate]

I am new to Ubuntu. I am trying to learn how to SRM a file, however I need to know how the directory name in order to type it out in the terminal. Can someone please help me figure out how to see ...
2
votes
1answer
908 views

Does Ubuntu plan to move to btrfs as default filesystem?

Btrfs seems to have a set of useful features such us snapshots and is default in Opensuse and Suse.Fedora plans to move to it. Does Ubuntu plan to move to it? If not, why ?
1
vote
2answers
56 views

What does the grey slice in disk usage represent?

When I right click on Properties for my ext4 partition I get the following pie chart: The meaning of the blue and white slices are fairly obvious, since they are in the legend to the right, but ...
0
votes
2answers
17 views

Do files under /opt and /var change much other than during software installation?

Do files under the following mount points change other than during software installation? /opt /var Can they be placed on read-only media?