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

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0
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1answer
39 views

WD Passport external device not recognized

I am getting following error when I connect my external HDD. Error mounting: mount exited with exit code 13: The disk contains an unclean file system (0, 0). The file system wasn't safely closed on ...
0
votes
0answers
57 views

SFTP access and editing files outside the home folder

I would like to be able to edit all files on Ubuntu server 14.04 using Filezilla and SFTP. Is there another way to do that except connecting with root user ? If I connect with other user, then I ...
0
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0answers
171 views

“My Passport” USB Drive corrupted

My Passport drive corrupted. When I type: dmesg | tail I get: [ 667.778316] sd 6:0:0:0: [sdb] CDB: Read(10) 28 00 00 00 00 00 00 00 08 00 [ 667.778321] blk_update_request: I/O error, dev sdb, ...
1
vote
1answer
59 views

Accidentally Wiped Root Partition - System Still Running

Alright, this is one of those times when I am are saying... Breathe deep, don't panic. What happened? As a usual part of leisurely tinkering with my system, I was trying write a 24.5 MB img file to ...
1
vote
1answer
142 views

What's the “/sys” directory for?

A while ago I noticed this directory that I had not ever seen before, /sys. I researched a bit and read that "modern Linux systems" often have this directory, and that it manages devices. I thought ...
0
votes
0answers
118 views

Proper way to mount a hfs+ dive for read and write

So I have this drive from my old Mac Pro which contains a lot of data (about 1.5TB). I switched to a Linux box (running Ubuntu 15.10) and now I need r/w access to it. I got it working using this ...
0
votes
0answers
2k views

blk_update_request: I/O error, dev fd0, sector 0

This happened after a kernel update. Whenever I try to boot, my computer says "Error getting authority: Error initializing authority: Could not connect: No such file or directory (g-io-error-quark, 1) ...
0
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0answers
40 views

Partition system id FDISK

if I change a partition system id to FAT16 with fdisk command and make another file system such as ext2 on that partition with mkfs command what is problem? every thing is ok ! so what does (partition ...
1
vote
1answer
794 views

Mount FAT32: Can't find a valid FAT filesystem

Xubuntu 14.04. nfts-3g is installed. /dev/sdc is the Flash drive. I have created new partition with fdisk (tried with cfdisk too). Tried with W95 FAT32 code and W95 FAT32 (LBA) code. ("b" and "c" in ...
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0answers
24 views

GUI for managing persistent network filesystem mounts

Is there a GUI for managing persistent network filesystem mounts? I presume it would be a thin GUI layer on top of /etc/fstab file?
3
votes
2answers
494 views

Utility says there's no more free disk space, when there's plenty

Somehow my system is in a pickle. $ sudo apt-get install -f Reading package lists... Done Building dependency tree Reading state information... Done Correcting dependencies... Done The ...
10
votes
1answer
912 views

Can I hide files so that they are hidden on both Windows and Linux?

I have my computer set up to use the same home folder / user profile for Linux and Windows. As a consequence I have files like NTUSER.DAT that are hidden on Windows showing up when I ls and in my file ...
0
votes
1answer
23 views

is there anything else to fix ext4 14.04 encrypted root? should I stay with ext4 or is another more likely to last longer?

I can't get 14.04 to boot but from a 15.10 partition I can: ~$ sudo fsck.ext4 -v /dev/mapper/vgcrypt-lvroot e2fsck 1.42.12 (29-Aug-2014) /dev/mapper/vgcrypt-lvroot contains a file system with errors,...
1
vote
1answer
64 views

Why doesn't my dvd/cd-rom show up with the “mount” command?

So, mount is supposed to show all file systems mounted in the OS file system. However, this is not the case for my system: the drive is called cdda//:sr0/, and no part of this is revealed in the mount ...
0
votes
2answers
21 views

Two Linux OSes on same machine - can edit files on the other OS safely?

I originally had an Xubuntu 14.04 (32 bit) on my machine. I have now also installed a Ubuntu 14.04 (64 bit) on the same machine and plan to migrate eventually there. In both OSes I have access to ...
0
votes
3answers
77 views

Is it safe to use a disk after a successful fsck?

I had not used my venerable ThinkPad T400 for about 2 weeks. I booted normally but was told to run fsck manually because of errors. I'm using 12.04 and the disk in question is ext4, a Samsung Evo 840,...
2
votes
1answer
29 views

how can I read the specific block of a file

Suppose I have a file /foo/bar. stat /foo/bar can show the inode information of it -- something like this: Size: 9511068 Blocks: 18584 IO Block: 4096 regular file Device: ca01h/51713d ...
2
votes
1answer
3k views

What will be the default filesystem in 16.04?

Has it been decided what the default filesystem for Ubuntu 16.04 LTS will be? Will it still be ext4? ext4 is great, but it was already great in ancient Ubuntu 9.10. Ironically, Wikipedia states ...
7
votes
6answers
865 views

How to count the total number of files/folders on a system?

How can I count the number of all files/folders that exist on a system, using the command-line? I can find it out using a GUI, simply by opening the properties window for the entire / folder, but it ...
0
votes
0answers
19 views

Where is the device for this folder?

Im trying to mount my smart-phone, and transfer some files, but when caja opens the disk it never does it right, and certain functionality like search doesn’t work right. So I just want to mount the ...
0
votes
0answers
58 views

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 ...
0
votes
1answer
141 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
360 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 ...
0
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0answers
29 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 ...
0
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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 ...
0
votes
0answers
70 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 /usr/share/...
0
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0answers
42 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 /usr/share/icons/hicolor/128x128/apps/softwarecenter....
0
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0answers
51 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
865 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% / ...
1
vote
3answers
77 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
votes
1answer
35 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
votes
1answer
37 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
votes
1answer
69 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
18 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
votes
1answer
47 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
vote
0answers
61 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
votes
0answers
16 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 ...
0
votes
2answers
32 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, ...
0
votes
0answers
32 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
197 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 ...
0
votes
0answers
314 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 ...
0
votes
0answers
130 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 ...
-2
votes
2answers
45 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 ?
0
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0answers
28 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 ...
0
votes
0answers
33 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
votes
0answers
41 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
votes
0answers
265 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
votes
0answers
117 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
votes
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 ...