Tagged Questions

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

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votes
1answer
128 views

How to format a HDD in ubuntu 14.04

So i recently switched to Ubuntu from Opensuse, and i'm loving it. There's one problem though. I've found that the control centre is minimalistic (to say the least) and, coming from a guy with Yast2, ...
1
vote
1answer
53 views

Macintosh HD will only mount ro, because it is journaled

A little history first, I've installed 14.04 on another partition of a MacBook 5.1 because of a completely botched Mavericks upgrade which has left OS X unusable. I had to use rEFInd to get it to ...
1
vote
1answer
120 views

what does device node 'none' means in file system?

when I tried $ mount command on my system (14.04 LTS), I found some of the results like... none on /sys/fs/cgroup type tmpfs (rw) none on /sys/fs/fuse/connections type fusectl (rw) none on ...
0
votes
1answer
53 views

what are the specifications a mount command provide?

while reading about linux I got the following.. Typing mount without any arguments will show all presently mounted filesystems. when I tried this on my system , I got.. anupam@JAZZ:~$ mount ...
2
votes
2answers
94 views

How do I combine hundreds of folders using command line

I have 535 folders (recup_dir.1, recup_dir.2, ..., recup_dir.535) and I want to merge (combine?) the contents of those folders into a single folder (lets say a folder named recup_dir). Some files ...
0
votes
0answers
31 views

Computer randomly wen't into read only filesystem

I was just typing in AbiWord and opened up the filesystem and realized everything had the 'lock' image over it. So I opened the terminal to run an update to see if everything was alright and just as I ...
0
votes
0answers
25 views

Understanding result of sudo fdisk -l

Please help me decipher the following terminal response: sudo fdisk -l Disk /dev/sda: 500.1 GB, 500107862016 bytes 255 heads, 63 sectors/track, 60801 cylinders, total 976773168 sectors Units = ...
0
votes
1answer
149 views

Unable to mount cifs with iocharset=utf8 in trusty

When I try to mount a cifs share with option iocharset=utf8 I receive the error: mount error 79 = Can not access a needed shared library. What shared library am I missing?
0
votes
0answers
39 views

Unable to mount gfs2 in 14.04

I've installed gfs2-utils 3.1.6-0ubuntu1. The package has a broken symbolic link, /usr/sbin/gfs2_mount, which points to a non-existing /sbin/mount.gfs2. Therefore mounting fails with 'unknown ...
1
vote
0answers
25 views

Is ext4 position independent and movable?

Does the data in an ext4 filesystem refer to absolute positions on the disk, or is it all relative to the start of the specific partition? I want to know this because I want to move an ext4 ...
9
votes
1answer
428 views

use of * in file searching

while reading about linux file searching I got the following... To search for files using the * wildcard, replace the unknown string with *, e.g. if you remember only that the extension was .out, ...
-1
votes
1answer
28 views

is source code for bash sufficient, when I want source code of ext4?

when I want to know the source code of ext4-filesystem (mkfs.ext4) - is it then sufficient to download the source code for bash ? - or do I need else source-codes after I did : sudo apt-get ...
0
votes
1answer
31 views

Disk Usage Analysys..

On my virtual Ubuntu Desktop (HD: 300 GB), Disk usage analyzer shows: and the df-l command shows: This is strange! If the root consumes only 59.6 GB, How the filesystem capacity says it uses ...
0
votes
1answer
64 views

No root file system

I have almost the same problem with the link below. "No root file system defined" error while installing ubuntu In my part, I had a problem with my drive about bitlocker key. I didnt have ...
0
votes
0answers
294 views

mount: unknown filesystem type 'LVM2_member'

I am having mysql in /home and /home partition automatically unmounts at reboot. If I try to mount, it mounts but shows unknown filesystem. If I mount it forcefully by providing filesystem, it mounts ...
2
votes
1answer
39 views

What are folders and how do they work?

In Ubuntu and ext4, how do folders work exactly? Are they solely virtual and take up no disc space? Do they actually take up space? Can I fill up my 1TB backup drive with nothing but folders? ...
1
vote
0answers
79 views

Slow network and file copy performance

I'm experiencing a weird problem with my Kubuntu installation. I'm running 14.4 now that was upgraded at least twice using the built-in distribution upgrade. The problems started after the last ...
0
votes
1answer
115 views

Is there anything that ext4. btrfs, or F2FS can do for a usb3.0 thumb drive that fat does not do? [closed]

I don't particularly care about cross platform. I have a thumb drive, and what to know if there is anything to gain from formatting it to ext4, btrfs, or f2fs. Thanks
0
votes
1answer
101 views

The best way to create a root filesystem, split between read only and writable

My aim is to create a system where the main parts of the root filesystem are stored on a read-only SD card, with writeable parts located on an SSD set to rw. This is to be done with a view to keeping ...
0
votes
0answers
24 views

Files writable under /proc, what's the Purpose?

While exploring /proc directory in root, I find some files are writable, as /proc is pseudo file system, so every time system gets boot, this will come in existence and will be deleted(ie No physical ...
0
votes
0answers
15 views

Base system failed

I'm installing Ubuntu on a Gateway laptop, I got a error: Install base system failed, target file system contains files from a past installation. These files can cause problems with the installation ...
0
votes
0answers
149 views

Setting default UMASK to “027” and USERGROUPS_ENAB to “yes” in /etc/login.defs

I don't understand the following from: /etc/login.defs # If USERGROUPS_ENAB is set to "yes", that will modify this UMASK default value # for private user groups, i. e. the uid is the same as gid, and ...
4
votes
3answers
382 views

Very large log files, what should I do?

(This question deals with a similar issue, but it talks about a rotated log file.) Today I got a system message regarding very low /var space. As usual I executed the commands in the line of sudo ...
3
votes
1answer
58 views

How to get a larger root partition on Touch

I'm trying to make Touch (14.10) work as an Ubuntu server. However the root partition is only 2 GB and is insufficient for the packages I need to install. Is there any way to get more space on the ...
0
votes
1answer
32 views

usb drive filesystem?

So, school is approaching quickly, and one of the things on my supply list is a usb drive. Now I'm asking myself what filesystem to use. After some research, I found ext4 to be the most stable drive ...
13
votes
4answers
2k views

What does /dev/null mean in a shell script?

I've started learning bash scripting by using this guide: http://www.tldp.org/LDP/abs/abs-guide.pdf However I got stuck at the first script: cd /var/log cat /dev/null > messages cat /dev/null ...
2
votes
1answer
41 views

How to prevent data from being written into a directory?

Or: How to make a directory write protected, for all users until unlocked again?
0
votes
0answers
66 views

How to recover Shift+delete files

I just shift-deleted some files from folder which has .avl file extension. Is there any way that I can recover my files?
0
votes
1answer
93 views

How to access an Androidphone's filesystem

I want to have access to my rooted Android-phone's filesystem using a USB-cabel-connection and either a Terminal or File Manager with GUI. I also want to be able to edit the system files using VIM or ...
0
votes
0answers
30 views

ubuntu svn checkout random failed

Using buildbot to run some test . The svn step random failed , The error messages like : svn: E140001: zlib (uncompress): corrupt data: Decompression of svndiff data failed or svn: Malformed ...
-1
votes
2answers
33 views

Listing an empty folder shows two items . and .. , what are they?

When I make a folder test and cd into it, it's empty. However, running ls -la returns: total 8> drwxrwxr-x 2 algosig algosig 4096 august 15 23:09. drwxr-xr-x 41 algosig algosig 4096 august 15 ...
0
votes
0answers
50 views

Ubuntu 14.04 Sublime Text 2: file suddenly empty. How to recover it?

a file that was open by Sublime Text 2 got suddenly empty. Maybe because the disk was full, and the program, that was executing this file, crashed. Is there a way to recover the content? I am using ...
0
votes
1answer
310 views

13.10 to 14.04: Filesystem mount failed: How get to maintenance shell?

While upgrading from 13.10 to 14.04 we got a power cut: When we restarted the machine we got a system fail; I'm getting the readout below: 'Filesystem check or mount failed. A maintenance shell will ...
0
votes
1answer
37 views

Ubuntu ISO Structure

I am working on an ubuntu iso personalization script based on the buggy uck .. The uck team seemed to know what they were doing, they used the structure of the ubuntu iso image a lot .. The problem ...
0
votes
1answer
49 views

remove directory to Grandpa directory and delete the parent directory

Sometimes , we note that we have unuseful nested containers(directrories) . For example mkdir -p ~/grandpa/pa; And pa directory is the only file existed on grandpa. Hence , all files of pa ...
-1
votes
1answer
105 views

To extend the partition allotted for ubuntu 14.04 LTS

I am currently running windows 8.1 and ubuntu 14.04LTS, initially i allotted only 10GB partition to it,as it is not sufficient how can i extend my ubuntu partition without affecting windows. ...
1
vote
1answer
40 views

Ubuntu 13.04 to 13.10 upgrade has made drive inaccesable

I recently upgraded to 13.10 from 13.04 , and encountered kernel panic on restarting the system. I have some uncommited code on my drive , so I planed to use live usb to take it out but unfortunately ...
0
votes
3answers
33 views

How to see the directories etc, bin, boot in the file system?

I am new to Ubuntu and I am unable to see the files in /etc, /bin and /boot. I want to know by using which command I can see them? I have tried logging in as root sudo -s and tree command but unable ...
1
vote
1answer
47 views

System runs out of space, space returns after restart

I have no many details except this - After a while my system is using more than 80% of the file system but after the restart it returns to usage of 9%. I have no idea why it happens and therefore I ...
1
vote
1answer
127 views

How to extract archive or change permissions when there are “read-only file system” errors?

I am using Ubuntu 14.04 and having a problem changing the file permission of a .zip file. I can neither extract it nor change file permissions. When I extract it by command unzip ...
3
votes
2answers
111 views

Are any files copied when I move files from a folder into another folder on the same disk?

Or is only the reference changed? It's a general question. Not really Ubuntu-specific. BTW: I've tried sudo fdisk -l, it doesn't seem to give the full picture.
1
vote
3answers
32 views

Re-allocate space to /usr

Pardon my newbee-ness, but when I look at my file system with df -h, I see how most of my space is in /dev/sda1. I'd like to add space to /usr, to install hadoop. I am confused about how to ...
0
votes
0answers
10 views

How to move the header files and binaries in FileSystem?

I have downloaded Imlib package in Home folder and perform the make there only. Now, my code where I am using #include "Imlib.h" is not able to find it. So how can I move the header files and binaries ...
0
votes
2answers
41 views

Do all the daemons indicated by configFiles/scripts/links in /etc/{init,init.d} start at the boot?

Are all the daemons (services) indicated by configuration-files/scripts/links in /etc/init/, /etc/init.d/ meant to start at the boot; so can I assume those directories being like start-up directory ...
2
votes
2answers
125 views

why is ext3 being used as disk format for most of linux and ubuntu and not other file systems [closed]

Can anyone explain why is ext4, ext3 or ext2 disk formats that have been used in Ubuntu as default and not others. Are there any advantages or disadvantages over other? If so, what?
1
vote
0answers
25 views

Reason of removing apt/dpkg/lock & apt/archives/lock

Is it possible to install multiple packages by deleting " Using apt & dpkg in the same time ". dpkg/lock & /archives/lock The Ubuntu Developers made it for reason "that you can not ...
1
vote
2answers
73 views

If linux can support NTFS file system then why cannot it be installed on same?

After learning basics of installation and types of file system, I found that Linux(Ubuntu) can open,create and delete file on an NTFS file system, where as windows can't even see ext series! so my ...
1
vote
1answer
64 views

What is dummy filesystem?

I tried df --help command to generate the man-page for help on df command and I am stucked with a unknown term Dummy filesystem This line in df manpage is where I get to know the term first time -a, ...
0
votes
0answers
31 views

How do I cat / rm a file called “-v”? [duplicate]

I have a file named -v: $ls -hl (...) drwxrwxr-x 2 segticfnd segticfnd 4096 Set 28 2012 Ubuntu One/ -rw-r--r-- 1 root root 180 Fev 12 11:53 -v drwxr-xr-x 5 segticfnd ...
1
vote
2answers
293 views

Upgrade went horribly wrong: libc.so.6: version 'GLIBC_2.17' not found

File system is mounted readonly, so I boot into recovery mode to run fsck, and I get the following message: mountall: /lib/i386-linux-gnu/libc.so.6: version 'GLIBC_2.17' not found (required by ...