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

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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: ...
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1answer
50 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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44 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
64 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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18 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
18 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 ...
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0answers
26 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 ...
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0answers
64 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 ...
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0answers
59 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 ...
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0answers
12 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 ...
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0answers
22 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 ...
1
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1answer
736 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
45 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 ...
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0answers
35 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
42 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
18 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
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0answers
139 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?
5
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1answer
145 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 ...
2
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1answer
61 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
29 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
32 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 ...
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2answers
70 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
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2answers
558 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
77 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: ...
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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, ...
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1answer
95 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
36 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
65 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 ...
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0answers
39 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 ...
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0answers
49 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: [ ...
11
votes
2answers
1k views

Where is the $HOME folder located?

I read recently that .desktop files that are used as desktop shortcuts are placed in the $HOME/Desktop directory. Where is this directory? Also, what does the $ part mean / do?
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3answers
774 views

Why do we have .desktop files?

I wonder why do we have .desktop files, I downloaded a trivial .jpg picture from internet (yes, I'm a newbie, currently learning command line), and saw that when I list the file, I saw .desktop ...
0
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1answer
291 views

Unable to format hard drive

I cant format the drive using fdisk and gparted. Gparted takes longer time to search for /dev/sda partition and then it thrown errors. Error creating file system: Command-line `mkfs.ext4 -F -L "" ...
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0answers
24 views

How is it possible storage hard disk failure cause system disk to fail to read/write?

Update: One of the 3TB Seagate Storage Drives was dying and any time I had it connected to the system, I got the IO/read errors, eventually even when the system was booting. As described below, ...
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2answers
44 views

Cleared and Unformatted partitions in GParted

I was formatting my drive and found a partition system named cleared and unformatted. What are those partitions and why they are in GParted app ?
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1answer
45 views

SIM-Card Filesystem in Ubuntu Touch

On my old Nokia Phone it was possible to store Data-Files on to the SIM-Card. Does anybody how to access the SIM-Card's File system within Ubuntu Touch? May I need to mount it first? But I can't ...
0
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3answers
3k views

Why the “Filesystem root” has only XXX disk space remaining?

The title is pretty obvious and common: the error below happens very often. What I am asking is why does it happen. I mean, look at the output of GParted (the first 4 partition are required by ...
1
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1answer
29 views

Probing system file interactions

I need to monitor all interactions with Linux file system (include interactions through interrupts, kernel functions and system calls). To do this, I use SystemTap. I have two questions: According ...
0
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1answer
61 views

how to sync files in linux - command prompt?

I see the following files in my directory - -rw-rw-r-- 1 sjos sjos 401 Oct 12 15:29 Makefile -rw-rw-r-- 1 sjos sjos 401 Oct 12 15:29 Makefile~ -rw-rw-r-- 1 sjos sjos 336 Oct 12 15:12 ...
1
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1answer
27 views

Which directories contain system files?

When installing Ubuntu, I don't want to format the partition that is going to be /. Installation wizard prompts me that Directories containing system files (/etc, /lib, /usr, /var...) that already ...
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0answers
37 views

Where to install activator

I'm installing Typesafe Activator and wondering where best to put the files. According to their documentation, it requires read/write access to the directory it's located in as it creates files for ...
0
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1answer
65 views

Documents ,Music, Downloads , Desktop file not showing

Suddenly my Ubuntu 14.04 not showing any Desktop files or folders. Additionally when I click on Documents,Music,Pictures,Downloads,Videos; I see this error message: Output for running sudo gedit ...
-1
votes
1answer
46 views

How do I install windows back? :( Ubuntu is basically useless for me now, for some reason I can not do anything with it. [duplicate]

I can't do anything on ubuntu anymore because of an error that says "Errors were found while checking the disk drive for /" Everytime I choose to ignore it and still able to boot up, all my files are ...
2
votes
1answer
162 views

Can't write to /dev/sdc, because it is opened read-only

I have a flash memory that I can delete or write anything to it when I try to delete the partition or format it , I got this message Can't write to /dev/sdc, because it is opened read-only. How ...
0
votes
1answer
67 views

How to edit a directory file on linux

Thanks for viewing my question seemed silly enough. Since directory is a kind of file, I am wandering whether it can be edit or not.I tried several editor but failed to do it. So is there any ways to ...
0
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1answer
208 views

how to update firefox on ubuntu? [duplicate]

The firefox on my ubuntu requires me to update Flash plugin and follow the link I get to the page which ask me to download the latest Firefox package. I download the tar.gz and unzip it. It is the new ...
0
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1answer
94 views

tune2fs mount-count: is it disabled by default (set to -1).

This may be in part duplicate . However my installation is 15.04 64 bit desktop. And no one has answered on that question. It seems to be a basic query albeit very important one . I did sudo tune2fs ...
0
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1answer
48 views

Setting up storage servers with data replication and failover fallback

Environment: 2 x Web Servers 2 x Storage Servers How can I setup my web servers to have access put data into Storage Server #1, and have a failover so that if Storage Server #1 is down, it should ...
0
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1answer
14 views

How can I transfer the users from an old mysql install with having access to ONLY the physical files?

So, I had crashed my server into a non-bootable state. I reinstalled, but not before grabbing the /etc,/usr, and /var directories. I reinstalled mysql on the new install, and was able to copy the old ...