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

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Server partition problem /boot full

we are using a 1un1.de server which comes with a very strange arrangement of partitions. I need to reallocate the space from /data to / because / has only 4GB in total and /data has all the space in ...
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1answer
100 views

Building a light weight home server/NAS. Question on RAID and filesystems

I'm planning a build that will be using Ubuntu Server 14.04. I have been trying to learn as much as possible and practice in virtualbox before actually installing any hardware. I am really enjoying ...
5
votes
1answer
229 views

How to create a directory users can't delete (but can delete files in it)?

Is it possible to create a directory that ordinary users cannot delete, but they could create and delete files and subdirectories inside this directory? i.e. for /share/permanent/ users could ...
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0answers
23 views

How to chmod /cdrom to 777 on USB trial install file system

I have done a USB install of Ubuntu 14.04 I try to sudo chmod 777 /cdrom/temp mode of /cdrom/temp changed from 0755 (rwxr-xr-x) to 0777 (rwxrwxrwx) ubuntu@ubuntu:/$ ls -ld /cdrom/temp drwxr-xr-x 3 ...
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0answers
22 views

How to keep track of files/applications opened? [duplicate]

I want to make a script which when running can log the details of files or applications being opened manually by the user. Any clue about how to go about it. I tried inotify, couldn't find relevant ...
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0answers
41 views

I have put my app icons to /usr/share/icons/hicolor/*x*/apps but referencing them by the name alone doesn't work - why?

I have put an icon (appropriate resolution versions of it) for a custom application of mine to /usr/share/icons/hicolor/16x16/apps/myapp.png /usr/share/icons/hicolor/22x22/apps/myapp.png ...
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0answers
35 views

Why are there SVG files in /usr/share/icons/hicolor/*x*/apps?

I thought SVG icons are meant to be placed in /usr/share/icons/hicolor/scalable/apps/ but ls -1 /usr/share/icons/hicolor/*x*/apps/*.svg gives ...
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49 views

How to configure assigned floppy disk ownership for Unity 14.04?

The floppy disk device I've recently added to a previously installed Ubuntu 14.04 desktop seems to be functioning correctly in GNOME Files on the unity desktop; however, media inserted into this ...
3
votes
1answer
832 views

System without /tmp dir?

Running df -h gives: Filesystem Size Used Avail Use% Mounted on udev 1.9G 0 1.9G 0% /dev tmpfs 385M 6.2M 379M 2% /run /dev/sda2 113G 27G 81G 25% / ...
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vote
3answers
63 views

How can I print the breakdown of disk usage by directory?

My cloud instance (running a web app) disk usage went up inexplicably, I suspect there is something like a storage leak there. Is there any way to the breakdown of disk usage by directory, in order ...
0
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1answer
25 views

copy files from/to usb drive containg a running live distro

let's suppose I have one (or multiple) live distro within a usb key, When I run this live distro, I want to access to the usb key's file system (e.g. get files and copy to the usb drive or copy ...
0
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1answer
35 views

Where is my software installation?

I'm kind of new to Linux. I installed a program (Sublime Text) and now I need to see the folder it is in. I can't find it under usr/bin, so, is there any other place wher I should look? Or ... how can ...
0
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1answer
56 views

Samba: check file for completeness

I have a device (with Ubuntu on it) with Samba installed. There is also a cron job that copies files out of the Samba share every 60 seconds. I am now running into a situation where the cron job ...
1
vote
1answer
17 views

while moving to a new server, is it ok to create system accounts?

I should move all the data, installations from server A to server B. Both are Ubuntu 14.04 LTS. There is a much-used instruction set here. One thing I don't understand is You should never ever ...
0
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1answer
39 views

How to recover tmp folder and problems with apt lockfile [duplicate]

I accidentally deleted tmp folder. than I was unable to visit browser neither could update/upgrade from terminal. I somehow managed to give 777 permissions to tmp. but When running sudo apt-get ...
1
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0answers
59 views

Find a file activity

I need to find what are all files opened yesterday in my system.I didn't installed GNOME activity. Is there any way i can see the activity a file when are all a file opened and how many times ...
0
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0answers
15 views

Proper way to install debian packages on filesystem extracted on host machine not directly on development board

I am customizing linux filesystem based on ubuntu, the filesystem is extracted on my development machine in which i can install custom binaries, libraries and scripts which is fairly easy enough. But ...
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2answers
30 views

Keeping track of filesystem changes

I am looking for a way to find changes made to filesystem on Ubuntu. Like so: make some kind of a snapshot i.e. scan given folder (files, subfolders), save files names and sizes. install whatever, ...
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0answers
30 views

At the beginning of installation: “Please correct this from partitioning menu”. but I don't have partitioning menu?

I have windows 7 And I downloaded Ubuntu from the official website And I installed via wubi.exe And restart And I get a message something "Root file system not defined. Please correct this from ...
0
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0answers
16 views

How to change the physical location of predeterminated user folders [duplicate]

Is there a way to change the physical location (real HDD partition) of the predeterminated user folders? I'm talking about the folders the system put automatically into the main system partition: ...
0
votes
1answer
130 views

Boot to Btrfs snapshot in Ubuntu

OpenSuse recently implemented an GRUB entry that allows you to boot directly into a previous Btrfs snapshot of your root. Is there any way of bringing it to my Ubuntu installation? Such feature would ...
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0answers
181 views

Is there a files system that alows you to chnge the partion size without unmounting the disk?

I am looking to have a Ubuntu setup that has a HDD and SSD. My HDD will have four or more (extended partition) that contain the /home and other mount points with the programs that come from the ...
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0answers
93 views

Cannot fsck or e2fsck to repair disk. dumpe2fs returns “Couldn't find valid filesystem superblock.”

I've been dealing with this hard disk problem all day. External Seagate disk I've foolishly failed to back up still is recognized by PC but cannot be read. When I try to follow the steps here, it ...
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2answers
42 views

What are this files do? [closed]

i'm new to ubuntu while i searched for files i found BitStormLite ec_storm_threshold rrefpropstormin.html StormbaanCoureur weather-storm.svg what are this files do ?
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0answers
25 views

How to rollback btrfs snapshot not at the top of the btrfs tree

(I may be using the wrong terms in this question, but I'm trying to use the terminology in the linked page.) The ubuntu wiki explains how to rollback a snapshot that is located at the top of the ...
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0answers
23 views

Deduplication of tiff files on os level

We have thousands of TIFF files on our linux fileserver. There are lots of doubles. Windows Server 2012 has a deduplication feature. Is there something simular in Ubuntu? If so which filesystem do ...
0
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0answers
34 views

input/output errors

Hey what goes on everyone? I've been noticing for the last few months that Ubuntu 14.04 is locking up on me, and if I have any applications open (more importantly terminal) if I run a command I get ...
0
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0answers
180 views

Google Chrome “--allow-access-from-files” mode does not work

I need to run a javascript code which accesses the file system (with file:// protocol) from google chrome. I have seen it can be allowed with the so-called --allow-access-from-files option as ...
0
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0answers
98 views

sshfs permission denied even for root user

I use sshfs to mount a remote folder from another server to the local server. Mounting the remote folder works without a problem using the following command: sshfs -o allow_other ...
0
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0answers
15 views

Recover deleted output file?

I have a running process which is constantly writing data to a file. I accidently deleted the file, while the process is still running. I need to recover the file, without losing the new data that is ...
0
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0answers
30 views

Changing target of Docker changes /media location

This is probably just a misunderstanding of how the file system in ubuntu 14.04 works. If I to an ls /media/guy -l then the output looks like: drwx------ 2 root root 4096 Apr 6 2015 ...
3
votes
1answer
3k views

fsck error on boot

I dual boot between Ubuntu and Windows 7. I was browsing on FireFox in Ubuntu and all of a sudden I get some error message, so I reboot. However when I try to boot into Ubuntu I get this message: ...
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0answers
58 views

External disk showing empty files

My ubuntu machine is detecting hardisk , but it shows nothing inside external hard disk . And my external disk is showing all the data in windows machine. What may be the problem. And how may I ...
0
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0answers
51 views

How to get the metadata size in ext4?

i have one SSD drive and use whole partitions for my benchmark program. what i want to know is the size of metadata after some benchmark program. it's quite hard to know the number of data blocks ...
2
votes
1answer
59 views

Strange message in syslog regarding ufs filesystem

I found this message in syslog: ufs: You didn't specify the type of your ufs filesystem >>>WARNING<<< Wrong ufstype may corrupt your filesystem, default is ufstype=old What ...
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0answers
22 views

Why is 'PowerPointViewer.exe' always appearing on my home folder?

I have deleted this before, but it appear again and again. I haven't install POL or any windows app with wine. Why is this .exe file in my home folder?
2
votes
0answers
200 views

Ubuntu 15.10 cannot unmount file system on shutdown

My Asus Ux303 laptop cannot shutdown, because it hangs at unmounting the filesystem. It hangs at Unmounting local filesystem... Any ideas what could cause this or how to diagnose it?
4
votes
1answer
158 views

Where should I put my touchpad configuration file?

I am currently configuring my touchpad and noticed that I can put my Synaptics configuration file (50-synaptics.conf) in two different locations : /usr/share/X11/xorg.conf.d/50-synaptics.conf And ...
3
votes
1answer
182 views

How to list compression ratio on compression enabled btrfs?

I enabled compression on a btrfs volume. Now how do I know the compression ratio of files or directories? Or at least the overall stats?
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1answer
34 views

Where do files for the programs from the software center get saved? [duplicate]

So im looking for the README file for DOSBOX, but have no idea where it is. feedback for Ubuntu makers: it would be great if there was a "Programs" file like in Windows. Thanks
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0answers
49 views

Creating hierarchy from tree output

I sometimes come across interesting skeleton code projects that are presented as the output of the tree command. There is not always an archive or a repository that allows me to easily clone them in ...
0
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2answers
86 views

Corrupt external hard disk

I was just making a backup with grsync when I accidentally unplugged my external hard drive. The result is that it won't mount again. I get this error: I tried running sudo fsck /dev/sdb and the ...
0
votes
2answers
2k views

Help me choose the best filesystem for my PC [closed]

I'm going to do a fresh install of Ubuntu 15.10 on my notebook so i'd like to know which filesystem is the best for me. It's an Acer Aspire E5-511 with 4GB RAM , Intel HD Graphics and a Intel Celeron ...
2
votes
1answer
165 views

Unable to write to disk but disk isn't full

I can't write to any file, even as root, or do any other operation that requires writing. Neither can any process that needs to write, so they're all failing. df says I've got plenty of room: ...
1
vote
0answers
18 views

Filesystem and gparted disagree on free memory [duplicate]

My filesystem says I have: While gparted says: And if I run disk analyser on root partition only: it mentions I only have 6Gb in total, instead of 15 from gparted. I guess gparted is right, ...
0
votes
1answer
190 views

mkfs.vfat unable create file partition

I am trying to create a file system partition using mkfs.vfat uitility. Below are the command i'm using: mkfs.vfat -F 32 -n program /dev/sdb1 mkfs.vfat -F 32 -n init /dev/sdb2 I'm getting below ...
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0answers
49 views

Read/Write Mac Disk From Ubuntu USB

I have loaded Ubuntu on an USB key to try to recover all my files on my Mac. I have installed hfsprogs and I am trying to run: ubuntu@ubuntu:~$ sudo mount -t hfsplus -o force,rw /dev/sda2 ...
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0answers
99 views

Change filesystem blocksize when installing 15.10

so, I'm very much out of my depth in the whole world of *nix here. I'm searching all over about file system block sizes, and I found this script which determines what I can tell are read-speeds with ...
1
vote
0answers
44 views

How to tell filesystem type of digital camera

I have a Fuji X-M1 digital camera and I need to find out what filesystem type is, I have attached it via USB to my Ubuntu GNOME 15.04 machine, but upon right-clicking on it in Nautilus I do not get ...
0
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0answers
59 views

btrfs kenel error

getting some kernel error while mounting btrfs for remove the missing devices. Oct 19 07:31:57 backup kernel: [ 1883.691633] ------------[ cut here]------------ Oct 19 07:31:57 backup kernel: [ ...