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

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2
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0answers
9 views

What are the layers between Nautilus and a removable storage device?

My question is somewhat large, but I couldn't figure out how to break it down without ruining it. There doesn't seem to be a very good (functioning) way of mounting a Nexus 4 in Ubuntu, so I was ...
0
votes
0answers
12 views

File errors on Ubuntu 12.04 OS

I am getting FPDMA READ failed errors during Ubuntu bootup. Has the hard drive gone bad? dmesg output: [ 4.912493] ata1.00: exception Emask 0x0 SAct 0x10600624 SErr 0x0 action 0x0 [ 4.912509] ...
0
votes
1answer
8 views

Retrieve data from a FreeSpace volume [previously ext4 volume]

Morning, Afternoon, Evening, any thing you wish. I'm using an HP-ProBook 4540S 750 Gb HDD 4 Gb of memory Intel Core i3-3110M CPU 2.40GHz x 4 I'm a software developper,so I use to install 2 Ubuntu ...
1
vote
1answer
14 views

file missing, help with recovery

I have Ubuntu 12.04 LTS with Windows 7 as dual boot. While on Ubuntu, I was using files and folders from the windows partition. I made a folder in the windows partiton, copied in it a ".docx" document ...
0
votes
0answers
27 views

How can I get rid of “scanning for btrfs filesystems” at start-up?

When I start up my computer, it says: "scanning for btrfs filesystems". I do need the btrfs-tools, but my btrfs filesystems are on a removable disk which is disconnected at start-up. Scanning for ...
1
vote
1answer
19 views

What are the system created files in $HOME?

I'm writing a home backup routine and want to omit certain files and directories from everyone's home folder. I'm planning to omit all of these, but here's the question. What are they used for? ...
0
votes
1answer
21 views

Why can't all the mount point in root directory changed to /mnt/temporary & /mnt/removable? [on hold]

It seem a obsoleted in the root directory with all the mount point. For example: /cdrom /media /mnt So, why can't it change to something like this: New Hierarchy: /mnt/temporary #Can short it to ...
0
votes
1answer
13 views

sharing drives, folders, and files between kububntu and windows running in virtualbox

am running kubuntu as my host and running windows 7 inside virtualbox. so far everthing is running fine, but as yet cant get it to let me share external drives, any folders or files on any of the ...
0
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0answers
34 views

Boot-tasks are being executed twice after upgrade to 14.04

after a distribution upgrade from 12.04 LTS to 14.04 LTS I noted that the boot-process took longer than it should. I took a look at boot.log and saw that some boot-tasks have been executed twice. ...
2
votes
1answer
14 views

What is the role of /proc/fs/jbd2/sda6-8/info in Ubuntu?

I am using the Ubuntu 14.04. Today I was going through the file system and I found that in the file at /proc/fs/jbd2/sda6-8/info following thing mentioned. 9286 transactions (8421 requested), ...
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0answers
29 views

How to recover accidently formatted partitioned hard disk while i was checking centos dvd

My story is a bit different, i was just check a custom allot centos dvd to verify that it was burnt correctly on a dvd, so i booted from the dvd, and it gave me some options to continue into the gui ...
0
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2answers
29 views

file system associated with /var?

while reading about linux,I got the following: The /var directory may be put in its own filesystem so that growth of the files can be accommodated and the file sizes do not fatally affect the system. ...
2
votes
0answers
34 views

orphaned inodes on root file system (ext4); persistent problem

On my trusty systems (VMs under vmWare, desktops, and laptops), we have the following issue. The root file system seems to have inodes that are never marked as "free". After a month of a working ...
1
vote
2answers
17 views

Difference between /usr and /home from installation perspective

I am not a pro in Linux and I was thinking that where does the files get stored when I do apt-get install. I understand that different linux distributions do things differently, but I am taking a ...
1
vote
1answer
31 views

Two Volumes? Want to Merge!

I apologize ahead of time for how confusing this may be. I am very new to things such as partitions, disks, and hard drives. When I installed Ubuntu there were two options, install on a 24 GB HD and ...
0
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0answers
15 views

Grub “unknown filesystem” Boot-Repair didn't find a solution

after booting my PC yesterday I encountered a Boot-Error and only the grub rescue prompt. error: unknown filesystem. After searching the Internet I booted into the Boot-Repair and tried the standard ...
-1
votes
1answer
70 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
24 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
88 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
31 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
82 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
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0answers
20 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
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0answers
20 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
46 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
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0answers
16 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
23 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
416 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, ...
0
votes
1answer
19 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
29 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
40 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
66 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
31 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
63 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
48 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
19 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
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0answers
53 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 ...
3
votes
2answers
293 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 ...
2
votes
0answers
23 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
29 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
1k 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
39 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
50 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
67 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
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0answers
22 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 ...
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votes
2answers
30 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
28 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
95 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
30 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 ...