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

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9 views

inspect a storage device file system structure

I am trying to understand the different file systems ,FAT ,EXT and NTFS .But I think that it is difficult without a way to see and examine with my eyes.So is there a tool that could help me .I mean ...
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32 views

How to change the default block allocation policy of a file system?

Every file system has some default block allocation policy. For instance unix file system scatters the blocks of a file randomly on disk while ext2,ext3 allocates blocks of a file in block groups. Is ...
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33 views

My Private folder has become empty

I don't really know what happened. I just meant to change all the names of the folders in /home so that the first letter of all of them would be lower case. I did it with the command bulkrename of ...
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0answers
18 views

Can use of symlinks be circumvented?

I am trying to download Android source from Git repository. I would require a lot of free space on my home folder to download the whole source and build it. So I decided to download the whole source ...
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1answer
114 views

Can I reuse other OS /home directory for Ubuntu?

I currently have Mint 14 set up on a 128GB SSD, with my /home directory on a 1TB Hard Disk. I am thinking about installing Ubuntu 14.04 when it comes out. I understand that I can select a different ...
3
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1answer
75 views

Why does my filesystem appear to be full to Ubuntu?

I have seen some questions and I know that Ubuntu reserves 5% of filesystem to root. Believe me this is not the case. I was moving some files from my home folder to another partition and I had to ...
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12 views

How to deal with low disk space in ubuntu 13.10 [duplicate]

I have installed ubuntu in an external drive in an Ext4 partition, it is unfortunately at the end of the drive. And now I am out of disk space. But I was able to create another Ext4 partition ...
0
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1answer
48 views

I changed to Ubuntu, lost my files. How do I get them back?

So as you guys will probably know, the support for Windows XP will be removed. I decided to change to Ubuntu and I already love it! However, I have found a major issue, and have lost all of my ...
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28 views

Trying Ubuntu from live DVD: hangs and/or gives “unable to find a medium…” error

I have an older desktop (general specs below) that I want to "Try Ubuntu" (12.04.4, i386) on using the live DVD before I install. However, I'm having several issues. The first few times, after ...
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1answer
49 views

Question about install Ubuntu

Today I tried to reinstall my Ubuntu 12.04 LTS through a USB flash, at first time I chose the default partition plan, then I found that there is no /home partition, and I think remount a /home is much ...
2
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2answers
63 views

Which of the filesystems supported by Ubuntu is the most resistant to file corruption?

I want to ask wich file system is the most damage and file corruption resistant. I mean the most secure for my data preventing data loss and such in case of a blackout or power failure. For example: ...
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2answers
55 views

Read only filesystem problem

I created a folder and I did: chmod 777 anotherFolder/ I ran: sudo mount -o loop folder/isoImage.iso anotherFolder/ The permissions of anotherFolder/ changed to "Read Only" and I can not chmod ...
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1answer
29 views

mounting partition

I am new to ubuntu. I installed it on 750GB harddisk. My problem is that i am not able to access the sda2 partition of my disk. below is the output of sudo fdisk -l: Disk /dev/sda: 750.2 GB, ...
2
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1answer
73 views

couldn't open output file: Read-only file system

I just installed Ubuntu. My problem is I am attempting to write a log file to home. I am using logcat from a python module called adb. When I attempt the terminal command adb logcat -f <path> I ...
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0answers
13 views

files are hiding automatically in between Ubuntu 12.04 and windows 8

I have installed both windows 8 and Ubuntu 12.04, in separate drives. i am using 2 other drives commonly between 2 OS to store the data. if i copy or use those files with Ubuntu,later if i tried to ...
0
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0answers
20 views

Got a corrupt BTRFS partition, but is still usable, how to convert it to ext4? [duplicate]

I've got a corrupt btrfs partition, and also because of its low speed, I am thinking of 'converting' it to ext4, how can I convert a root partition from btrfs to ext4 without loosing the ability to ...
7
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1answer
237 views

What is the role of the .ICEauthority file?

When I listed files in my home directory, there was a hidden file named .ICEauthority. What is this file, and what is its role?
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2answers
51 views

How to create symbolic link to a directory excluding certain files?

I want to create a symbolic link from my home directory to Dropbox, excluding Videos. This is what I know: ln -s /home/pt/ '/home/pt/Dropbox' What should I do? What will happen if I'd like to ...
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0answers
39 views

Ubuntu 12.04 ext4-fs error/inode

I am running a Dell PowerEdge T420 with Ubuntu 12.04 32bit. The hard drives are a RAID1 setup. Last week, I began getting errors that cause the build I am running to fail. I found this in the log ...
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3 views

Distributed share storage across WAN

I'd like to build something which looks like "BranchCache" in Windows Server with Ubuntu. That is : - publish/share a folder on an Ubuntu Server in site A - have a user located in site B access the ...
0
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1answer
46 views

btrfs - did I just turn RAID1 into RAID10?

I set up a btrfs partition using two 3 TB drives in RAID 1: $ mkfs.btrfs -m raid1 -d raid1 /dev/sdd /dev/sde $ mount /dev/sdd /media/media Copied a bunch of data onto the partition, with the ...
0
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2answers
30 views

Can't find copied files

I used cp to copy files to a directory which didn't exist. I have no clue where they went to, and the worst part is it filled up my primary 120gb ssd so I can't make any changes to anything. Where ...
0
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1answer
12 views

Format Filesystem to work with seperate boot and data drives

I am building a PC and was going to use a small SSD to hold my OS and a larger hard drive to store my files on. I was wondering if there was any way for me to move my home folder or mess with my ...
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19 views

The number of file descriptors is limited by your shell

i am trying to start Informix server. i am getting error when i run command ./oninit .error is The number of file descriptors is limited by your shell . can any one please guideline how to remove ...
3
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2answers
256 views

Delete the parent folder keeping the contained files?

Is it possible that if I have this: /folder1/folder2/folder3 /folder1/folder2/file1.txt Can I delete folder2 but keep its content? So the result would look like: /folder1/folder3 ...
5
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1answer
74 views

What is the significance of permission of `/etc`?

Trying to replicate the problem described in "/etc/profile permission denied!" where OP of the post in her comments mentions the permission string for her /etc directory being drw-r--r--. I issued ...
3
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1answer
29 views

Is there an Ubuntu version of Windows' 'System Refresh' option?

Windows 8 allows users to reinstall the operating system without removing documents, music, and pictures (basically, without removing the home folder); is there a similar function available in Ubuntu? ...
13
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2answers
535 views

How to see the contents of a file with blank filename?

drwxrwxr-x 2 ubuntu ubuntu 4096 Mar 19 07:30 xxxxx -rw-rw-r-- 1 ubuntu ubuntu 580 Mar 20 07:24 -rw-rw-r-- 1 ubuntu ubuntu 27137 Mar 20 09:10 xxx.js Here there is a file on the second line but ...
8
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2answers
113 views
+50

Delete directory indirectly inside of itself

I have a directory inside itself. How do I delete it. ~/.local/share/Trash/files$ ls devices/ reg-dummy ~/.local/share/Trash/files$ ls devices/reg-dummy/ subsystem ~/.local/share/Trash/files$ ls ...
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2answers
47 views

How do I add a new user with specific configuration files?

I am new to Ubuntu and *nix OSes. I have just installed the latest stable version of Ubuntu on my computer. During the installation process, I created a user account. Let us call it N1. Just to try ...
5
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2answers
116 views

How can I know which folders are created by which program?

I have /usr/share/gtksourceview-2.0/ and I think it maybe due to Mousepad or Geany or Medit text editors. But how can I know for sure without uninstalling them and reinstalling one-by-one? (I don't ...
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0answers
23 views

Resizing Xubuntu patrition

Ok, here is the problem. I have a Xubuntu in Virtual box. I have resized the machine HD and added the missing space using GParted to the patrition as seen in this picture: After resize the new size ...
11
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2answers
958 views

How does linux handle a move command

How does linux handle a move command under the hood? Let's say I move my home dir /home/me and I move this into another directory /home/foo/me How are all the files and directories paths under ...
0
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2answers
309 views

How can I get Windows files from Ubuntu

Is it possible to get the files I had on windows onto my Ubuntu desktop? How can I connect to windows partition from Ubuntu?
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2answers
47 views

directories for dummies [duplicate]

I am VERY 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 ...
0
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2answers
33 views

How do I recreate /dev/shm after removing it by mistake?

I'm running Ubuntu 13.04 and I removed by mistake few folders from /dev/. As a result i have some problems with some applications like Chrome, which is not able to work.
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0answers
25 views

ecryptfs mounts as read only

I did the following (http://haridas.in/how-to-put-encrypted-contents-on-cloud-storages.html), and after mounting, the mounted dir is read-only filesystem: I created two dirs: one to /home/user/dir1 ...
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0answers
35 views

Ubuntu 12.04.4 ext4 filesystem, excessive overhead

I'm experiencing a baffling problem with two 12.04.4 servers I've just installed - there is what appears to be excessive file system overhead for anything I save on its folders; for example, a single ...
2
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1answer
34 views

Inconsistent parent directory of all symlinks

A large portion of my system depends on symbolic links, so this is a very serious problem. I do something like the following cd mkdir test mkdir other cd test ln -s ../other/ # So ~/test contains a ...
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84 views

error: unknown filesystem; grub rescue

yesterday there was a power failure at my house and when i turn on my desktop, i had problems with user permissions on linux. I restarted linux and then, while booting, it gave me that error described ...
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2answers
45 views

How to create a file even root user also can't delete? Is there any possiblities?

Is there any way to create to a file that root user also cant delete?
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0answers
24 views

how to make the compressed filesystem smaller

I'm trying to make an image of my currently installed Ubuntu using relinux. I'm working on Ubuntu 12.10 and my machine is dell inspiron I've followed this video ...
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0answers
30 views

Files not readable on Windows

I have a video server running Ubuntu 12.04.3 LTS, which works fine for what I need it to do. Although, as it is a video server from which I stream movies to my Windows machine, that's what I expect ...
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0answers
26 views

wrong file system type passed to fsck

My Ubuntu hanged today while it was downloading, as it was unresponsive for long i shut it down forcefully . Later when i switched it on, it was not coming up so i used a live cd to fix the file ...
2
votes
2answers
36 views

Where can I find the directory structure and important files paths explained?

Server only therefore console only. I assume it must be somewhere in /usr/share/doc/ ? http://www.pathname.com/fhs/ (Filesystem Hierarchy Standard)
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1answer
59 views

Ubuntu server with btrfs root and confusion with the @ symbol in subvolume path

Please note the following commands: user@ubuntu:~$ sudo btrfs subvolume create /srv/audio Create subvolume '/srv/audio' user@ubuntu:~$ sudo btrfs fi show Label: 'BTRFS_STORAGE' uuid: ...
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0answers
31 views

My encfs folder three times larger than original

Recently I've noticed sudden grown of size of my encfs folder. Size of data 2.3 Gb, size of encfs folder is 6.6 Gb. What could cause this? This is how mount output looks like: /dev/sda6 on / type ...
0
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1answer
68 views

Value too large for defined data type

I need to burn a ISO (3.3GB in size) using Brasero using my Ubuntu machine, however when I try to do it which the ISO is saved in my Portable USB Drive with NTFS file system, Ubuntu 64-bit says: ...
0
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1answer
20 views

How to remove the preview image on video and picture files in foldes?

I would like to have that setup like in windows where just the file names are showing and not any small picture of the image or video preview of the file. this is all when browsing in folders :) ...
0
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1answer
35 views

How do I guard ubuntu for power outage?

I develop industrial equipment with embedded PC and Ubuntu 12.04.3. Web server(apache) and DB(sqlite) running automatically when I turn on this PC. User can't shutdown in the correct sequence. ...