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
10k views

Reasonable size for “filesystem reserved blocks” for non-OS disks?

When creating a file system ( mkfs ...) the file system reserves 5% of the space for its own use because, according to man tune2fs: Reserving some number of filesystem blocks for use by ...
1
vote
1answer
23 views

High load when playing music files audio or video

Why do I keep getting high loads when I play music videos and audio files? Sometimes the computer hangs and everything stops working because of filesystem corruption and I have to repair it before am ...
2
votes
1answer
219 views

ubuntu doesn't boot without flash drive

I just installed Ubuntu 11.04 on my Netbook. I had to use a flash key and during the installation i tried putting Ubuntu on a separate partition, but it kept showing a no root file system is defined ...
1
vote
3answers
12k views

How to wipe/format entire disk using gparted?

With gnome-disk-utility alias palimpsest there is an option to format entire disk with partitioning scheme "none" or something similar. How do I do that in gparted? (? is it the "loop" option ?) Or ...
0
votes
2answers
42 views

list files or dirs starting with 'jre'

I need to list files and dirs with names starting with jre (small and capital letters are allowed). When I execute: ls | grep jre ...it greps just low capital letters and gives output with jre not ...
3
votes
3answers
157 views

How to sync two folders on my machine, in one directional syncing?

I have a set-up in which I create a certain file, and subsequently move it into a storage area for that type of file (folder A). There is another folder on my machine where I must also copy the file ...
0
votes
0answers
55 views

Install LAMPP / XAMPP not as root

I've installed LAMPP and that worked fine. It was installed in /opt/lampp/. But now I need to install it again (I uninstalled it) NOT as root, in which case I don't have to sudo everything. ...
0
votes
1answer
13 views

Where is the changelog downloaded to?

After running (where <package> is replaced with the name of the package whose changelog you want): apt-get changelog <package> Where is the changelog downloaded to? And what happens ...
3
votes
2answers
143 views

Where are file properties stored on the actual file system?

I am creating a program that takes a hexdump of a file, so that I can then transmit that somewhere, and have the file reconstructed, however the hexdump is only of the file contents, I also need to ...
2
votes
1answer
104 views

Root partition filling up

Ubuntu just printed the message "Partition "/" almost full. 600MB remaining" I am running Ubuntu 15.04 I have checked the root partition a few times since that occurred and it was filling up more and ...
2
votes
1answer
107 views

16 TB what filesystem I should use

I need a 16 TB volume by 6 drives x 4TB. I use the last version of ubuntu. I need the filsytem very stable. How I can created this volume. I should use ext4, xfs, zfs, btrfs, with mdadm ? Thanks a ...
0
votes
0answers
43 views

How do I get Ubuntu to respect no read, write, or execute permissions for others set by chmod and Nautilus

I do not want to give 'others' read, write, or execute permissions in certain directories or folders. i.e. /home/me/test I am running 14.04.3 desktop. I have navigated to the folder, selected the ...
1
vote
0answers
27 views

Move files preserving symbolic links

I have some files on an external hard drive, to which I keep soft symlinks in my home folder (many links, not just one). I need to move some of the original files to another hard drive, and I want to ...
2
votes
0answers
31 views

Gedit not preserving extended attributes on file edit

I'm working on a project where i rely mostly on the file's extended attribute that i set when i create the file. But i'm facing problem while modifying the file. Example: When i edit a text file in ...
2
votes
2answers
4k views

Low disk space “Filesystem root”

Running 11.04 Low disk space warning. Results of df: Filesystem 1K-blocks Used Available Use% Mounted on /dev/sda2 31381148 10417896 19390492 35% / none ...
0
votes
1answer
36 views

New File System drivers for ubuntu [closed]

I have done some kernel development previously, simple ones really. I wanted to know what direction I should be looking in to create a custom files system of my own. Most things I have found with a ...
0
votes
1answer
130 views

Where are the files of my /home directory?

I have reinstalled my system after facing some crashing issues with my software. I have a separate / and /home When I am running df -h I obtain: root@sougata-SATELLITE-L750:/home# df -h Filesystem ...
1
vote
0answers
15 views

How does an encrypted file system stay reasonably fast?

I want to encrypt my file system and wondered can my file system stay as fast as it would be without any encryption? If so why, if not how does this affect the read/write operations?
1
vote
0answers
81 views

Android phone's microSD not useable by Windows 8, after using under Ubuntu

I connected my Android phone (as 'mass storage') to Ubuntu 14.04 LTS. It has a microSD card with fat32 filesystem. Thereafter I logged it to Windows and connected, but my Windows 8 didn't recognise ...
0
votes
2answers
639 views

what filesystem should i choose for my HDD?

I am new to linux.few months ago i was using linux in parallel with windows.but it makes my machine pretty slow,so recently i formatted my systemdrive and installed only ubuntu in my machine in one ...
0
votes
1answer
50 views

Split a file in two different parts but use it under one path

I would like to split a large file (300GB), which is in my home directory under the dev/sdb1 into two (or more) different parts and move them into two different disk drives. However, I would like my ...
7
votes
1answer
1k views

Why do I need the x permission to cd into a directory? [duplicate]

ls -la prints the following: drwxrwxrw- 2 www-data www-data 4096 Aug 12 11:04 files My username does not belong to www-data. When trying to cd into files I get a "permission denied" though the ...
0
votes
1answer
21 views

Drive not showing up

Every time I start my ubuntu and do a "ls" in "/media/my_username" directory my drive D: is not showing up,but after when I enter the D: using GUI and doing a ls it shows up,can any one help!
0
votes
1answer
123 views

How to create a snapshot of an encrypted btrfs @home subvolume?

We are using btrfs for its snapshot capabilities so we can backup user home directories. The user home directories are encrypted with encryptfs. We run sudo btrfs subvolume snapshot /home ...
40
votes
4answers
55k views

Why are hard links not allowed for directories?

I am using Ubuntu 12.04 and I am pretty new Linux world. I am really amazed when I try to create hard link for any directory and fail. I can create hard links for files inside file system boundary. I ...
13
votes
2answers
2k views

Why will Ubuntu no longer measure file size unit as byte, megabyte, gigabyte, etc?

I read on somewhere that Ubuntu will no longer use the familiar file size units we all know by now (kB, MB, GB, TB) and switch to a different IEC standard (KiB, MiB, GiB, TiB). If this is true, I ...
2
votes
3answers
124 views

How to prevent Ubuntu from mounting a partition it founds?

Adding a static fstab record for a particular partition effectively prevents automatic mounting logic to work with and it works great when I want the partition to actually be mounted (in a place I ...
1
vote
4answers
110 views

Understanding linux file system modes

I've read through over 10 articles, and am trying to wrap my head around the linux file system. There is one point I am trying to get that I can't figure out. Forgive me for sounding very dumb: When ...
0
votes
1answer
49 views

usb read-only in gui, but works fine from terminal (12.04)

From all that I've read on-line, it appears I have a new twist on the usb-read-only problem. When I first tried a new usb drive, whenever I tried to drag-drop a file into it, I got the error message ...
22
votes
8answers
46k views

Why do my gvfs mounts not show up under ~/.gvfs or /run/user/<login>/gvfs?

From what I read, when mounting a network share via nautilus or gvfs-mount the mount point should be in ~/.gvfs. This seems not to be the case for me: I tried mounting both an FTP and SMB share via ...
0
votes
1answer
43 views

File disappeared after cutting name when renaming

I use Ububtu 15.04 with Unity interface. While I was editing a file's name, I accidentally selected the entire name (without the extension) and pressed ctrl+x and Enter. The file disappeared. Where ...
1
vote
0answers
25 views

fast/easy file system snapshot

I am working in a lot of team projects and usually team members come to my computer in an attempt to help and they ruin my workspace. My workspace for a project spans folders in different locations. ...
1
vote
0answers
42 views

Is there any Way to Hide/Unhide a file except using . in Ubuntu 14.04? [duplicate]

Wanna Hide/Unhide an Item/File/Folder but not Using Period (.) In Cmd (Windows) attrib command is available to do so.Hence any command like that in Terminal. Any Keyboard Shortcut for that?
0
votes
0answers
162 views

error:unknown filesystem. Entering rescue mode… grub rescue

I did my best to look at all the other "duplicate" questions out there but nothing has helped. Here's what's happening: I think my laptop ran out of power and shut itself off (while the lid was ...
0
votes
1answer
29 views

How to move /media to another disk device?

I am currently running Ubuntu 14.04 on a PC with one registered (admin) user called "john". When I run df, the results are: Filesystem 1K-blocks Used Available Use% Mounted on /dev/sda1 ...
5
votes
3answers
10k views

List of all shared folders

Is there possible to list all shared folders (with their physical locations) from command line?
2
votes
0answers
201 views

Ubuntu 15.04 checking an ext4 partition on every boot

I have gone through other posts similar to my question, but i tried all solutions/ or their methods dont apply to my case. there is no /forcefsck file on my system. fstab contents: ...
18
votes
4answers
38k views

Convert filesystem NTFS -> EXT4?

I have 2 TB of data on an NTFS drive which I would like to convert to EXT4 filesystem. My OS runs on a (comparatively) small 60GB SSD. Is there any way to convert the filesystem, apart from backing ...
1
vote
0answers
21 views

VirtualMode to remove MSDOS filesystem files in Ubuntu?

I have a MSDOS memory card where I would like delete files by my Ubuntu installation. I run on those files sudo rm /media/masi/g0399/DCIM/video.mp4 but I get a filesystem error that the filesystem is ...
11
votes
4answers
37k views

Where can I find the location of folders for installed programs?

I'm new to Ubuntu and would like to know where I can find the location of program files for programs installed from the Ubuntu Software Center or the Terminal.
0
votes
1answer
219 views

Error while installing ubuntu 14.04 alongside windows10 using wubi

I am using windows10 in my system. I tried to install Ubuntu 14.04 alongside windows 10 using wubi. It shows the following error. If I click "ok", then it shows the same error again.
0
votes
1answer
213 views

fsck wont fix efs partitions

I have some efs drives that I am attempting to repair the file-systems of. when I run fsck, it returns with an error essentially saying the device isn’t e2fsck. I looked in synaptic for efs support, ...
0
votes
1answer
76 views

How to change FileSystem from, msdos to ext3/ext4 on a specific drive

I am relatively new to Ubuntu and I have recently added a new 480Gb+ SSD drive. When I attempted to install a program onto the drive it wouldn't allow it to happen and a error would occur. I ended up ...
0
votes
0answers
21 views

12.04LTS -> 14.04LTS “lost” all my files

I recently got into a problem with a package saying another copy was running even on a fresh boot (in 12.04). I recklessly decided to accept the update manager's recommendation to move to 14.04LTS. ...
0
votes
0answers
62 views

Messed up sharing files between Linux 14.04 and Windows7 (dual boot) - Error 0x80070570

I'm new to Linux. Recently, I started dual-booting Windows 7 and Ubuntu 14.04. They are both installed on separate disk partitions and there's an NTFS disk partition (700GB), where I store my files in ...
0
votes
2answers
136 views

Where to put downloaded files on filesystem (14.04)

I'm new to running ubuntu as a desktop. I've managed a linux (non ubuntu) server for quite a while now. But, I've just been barely getting by. I am scared I'll mess something up and cpanel/whm is ...
2
votes
0answers
55 views

Why the tar file is so big? [closed]

I created a tar file of a directory. The directory is a few MBs big. The tar file has a size of more than 150 MBs!!! I created the tar file with the command: tar -cf <tar filename> ...
0
votes
2answers
1k views

Mounting encrypted LUKS partition from Live CD

Error to begin with, can't boot I had to do a hard reboot of my computer, and when booting up it (initramfs I think) gave an error: mount: mounting /dev/mapper/ubuntu--vg-root on /root failed: ...
-1
votes
3answers
110 views

Ubuntu 12.04 Root Filesystem Full

My root filesystem seems to be full even though my /home directory still has a lot of space. Output from df -h: Filesystem Size Used Avail Use% Mounted on /dev/mapper/vg0-root 19G ...
0
votes
1answer
116 views

Alternative to Thunar that can access Android fs (Samsung Galaxy Tab S SM-T700) via USB

I've spent one frustrating hour trying in vain to get Thunar to access the files ystem of a Samsung Galaxy Tab S SM-T700 via USB. I'm now fed up with Thunar1, and I'm ready to give it the ol' ...