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

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3
votes
1answer
119 views

How to allow members of a group to read current and new files on a directory?

Members of the purchasing group should be able to read all the files in /data/sales. In addition, members must be able to read new files ever created in this directory. How am I going to get this done?...
0
votes
0answers
17 views

dev/pts doesn't show in ls command

I'm fairly new to ubuntu, I'm running it in a virtual machine online on an application called cloud 9. I've run the commands sudo -i, followed by cd \, cd dev, and ls. When I ran ls it gave me: ...
1
vote
0answers
30 views

Panasonic GH3/ Exfat Issues: file system is larger than underlying device

I am running Ubuntu 15.10 and have a Panasonic GH3 DSLR that I would like to connect to my computer. At first I was giving me an issue about not read Exfat file system. Googled and found this page(...
1
vote
0answers
12 views

How to install packer system-wide?

Where can I install packer in filesystem for system-wide usage in Ubuntu 16.04 Xenial? Where should I place its binary to be available system-wide since it is not part of the OS?
-4
votes
1answer
29 views

Help with FUSE filesystem [on hold]

I am new to Ubuntu and I need to create a FUSE based file system. I've seen many examples online, but I can't understand the differences between the examples. Some examples from what I've seen so far ...
0
votes
1answer
28 views

How can I install things on a mounted filesystem?

If I have a directory which contains a bare filesystem(ie bin, dev, home, lib, opt, media, etc) but without any of the drivers or programs or anything on it you might expect, how do you go about ...
3
votes
1answer
36 views

Ubuntu does not correctly display non-ASCII characters in Windows folder names

If I save folders in windows with special characters like ä/ö/ü or chinese characters, they will be displayed with question marks in Ubuntu. But if I write it directly in Ubuntu, it will be displayed ...
2
votes
1answer
93 views

Unable to copy files from linux server

While copying files from a Linux server to external hard drive, it shows the error message insufficient space in hard disk The hard disk is 2TB and the copying data size is 460GB. Why does it ...
1
vote
1answer
26 views

How to find all volumes that btrfs df prints out?

i don't understand where the second data "container" comes from: ocean@nas:/mnt$ sudo btrfs filesystem df / Data, RAID1: total=3.00GiB, used=1.70GiB Data, single: total=1.00GiB, used=0.00B <-- ...
1
vote
1answer
15 views

Is adding device to subvolume the same as adding device to main filesystem in btrfs?

When I add a device to a btrfs sub-volume with btrfs device add /dev/sdb /path/to/subvolume is the added device then only used for the sub-volume or is it used by the whole file-system ? Or the ...
0
votes
0answers
22 views

error unknown filesystem. grub rescue issue on booting ubuntu 14.04

I have installed Ubuntu 14.04.4 on my WD my passport 1 tb external hdd on a 150 GB partition newly created. I have used live USB for it. When I boot the computer using external hdd it gives unknown ...
0
votes
0answers
40 views

Which Cluster Filesystem / Distributed Filesystem for Ubuntu 16.04

I have 5 servers, 16 threads running on each of them, producing a total of 80 files at the same time, which should finally be available for every other server in the same folder (it is a MPI ...
0
votes
0answers
17 views

reallocating memory across filesystems

Recently, I started receiving "cannot create temp file for here: No space left on device" error messages. The hard drive itself still has plenty of space, i.e. there are 4.8T remaining on the /dev/...
0
votes
0answers
32 views

Deleted single file, after reboot it's back

I have a file "Zkousky.ics" (calendar file, exams) on my desktop. Whenever I remove it, however, after reboot the file is back. I used several methods of removing, but the file is always coming back ...
2
votes
0answers
35 views

Why is ubuntu installer failing to create and mount encrypted partitions?

Before running ubuntu 16.04 installer I made myself a simple partitioning scheme for encrypted home, encrypted /, and encrypted swap. After selecting the proper settings in the "installation type" ...
0
votes
1answer
30 views

How do I recover my data on Windows machine?

I had some problems on my laptop,so we have taken HD from it and now we are trying to recover the data on Windows machine.Ubuntu 14.04 was installed on my laptop. How to do this? Are there any ...
0
votes
1answer
42 views

I'd like to fully grasp Linux to make the most out of it [closed]

I have a basic idea of how to fix basic stuff like update issues, how to nano a file spotted with cd and ls in terminal, etc. but I would like to thoroughly learn the File System and how to explore ...
0
votes
1answer
33 views

Brown out reset

Is it possible under brownout situation can we reset the processor(running Linux (Ubuntu/Fedora Os))which is called as BOR(brown out reset) ?? I want to reset the processor when it will face ...
2
votes
0answers
70 views

Where do I stand with btrfs?

First off, I understand btrfs is experimental and I should still have valid backups of all my data etc etc. No problems. I have setup a btrfs RAID5 array across 4x 3TB drives; Overall: Device ...
0
votes
0answers
15 views

Use a network mounted /var/cache/apt/archives folder

I want to make it, so that after one computer on the LAN has already downloaded the package, it's available for other computers with Ubuntu (with the same version, of course). There are several ...
18
votes
4answers
2k views

“physical block size is 2048 bytes, but Linux says it is 512” when formatting a usb stick after using it as installation media

I was using: dd if=/path/to/my/ubuntuiso/ubuntu.iso of=/dev/sdb1 bs=4M && sync In order to create bootable Ubuntu USB drives on older Ubuntu versions. It was working perfectly. ...
0
votes
0answers
17 views

copy to ext4 formatted drive HDD until 99.9% full, preventing fragmentation?

In general I do understand how ext4-fs manages it to avoid fragmentation, but one question remains after intense investigations... Situation: I have to copy many files of very different sizes to an ...
1
vote
1answer
38 views

Installer offers ext2 as a filesystem for main partition in Ubuntu Server 16.04

I'm installing Ubuntu Server 16.04. When it comes to the partitioning after using the "guided LVM" option Ubuntu will offer the following filesystems for the partitions: ext4 for root swap for swap (...
0
votes
2answers
28 views

How to delete all files in current directory but keep files in subfolders

I have a structure like this file_1 file_2 ... file_n folder1/ sub_file_1 sub_file_2 I only want to delete file_1, file_2 and file_n but keep all folders and files in them.
5
votes
1answer
463 views

Why do some some files in /etc have a numeric prefix?

For example look in /etc/apt/apt.conf.d/ all files have a numeric prefix. What is the reason? I have seen this many times and always wonder. Is it just for the sake of ordering?
0
votes
1answer
27 views

Read data from SD card of ds150e

Ubuntu does not recognize SD card of delphi ds150e. GParted sees SD card, but filesystem is not marked. How to read data from SD card? I don't know which filesystem uses ds150e device. Sorry for my ...
0
votes
0answers
9 views

ACL issue. Not getting correct mask

I got a problem with my ACL rules. The mask is not being followed, even though its defaulted to rwx root@WinterFell:/mnt/backup/test# getfacl ./ # file: . # owner: root # group: root user::rwx group::...
0
votes
1answer
20 views

Can TestDisk utility recover data

Actually I want know , can Testdisk recover data after fresh installation of new Ubuntu OS 16.04 from a deleted partition.
0
votes
0answers
58 views

correctly setting up Gradle for IntelliJ

After installing gradle via sudo apt-get install gradle, where DO I find the gradle home directory that I need to feed IntelliJ to open my project? cat $GRADLE_HOME never terminates echo $...
0
votes
1answer
38 views

Grub2 keeps saying unknown filesystem-

Hello Friends I'm asking for help.I have a 2006 mac running ubuntu.The problem is it wont boot.So I decided to put an iso of ubuntu on a usb so I can boot it with grub 2.The thing is whenever I try ...
2
votes
1answer
54 views

Nautilus Cannot Move Files to Trash When Trash is in eCryptfs / Files are on a Different Drive

I used to just press the Delete key on selected files on Nautilus, and then it would trash the file(s) without confirmation. That was very convenient. I later decided that my Trash may contain ...
0
votes
1answer
22 views

Grub2 doesn't recognize any new partitions?

I am trying to add a new partition to my drive. The drive contains files that grub can boot into (Live ISOs, or Windows Installers). My drive has 250 GB unallocated and has in the past.. Grub2 booted ...
0
votes
0answers
15 views

Network links disappeared in Select Destination or Filename windows

Not very long ago, the links to my network drive disappeared in the pop up destination windows on all of my Ubuntu 14.04 PC's. Networking still works fine, Nautilus still sees the net drives and it's ...
3
votes
1answer
93 views

Cannot mount some partitions

About two weeks ago I had a problem with my PC that my brother wrote a question about at PC not booting after using Windows 7 auto-repair. I still haven't solved the problem, so my PC is unusable now....
0
votes
3answers
170 views

Installation on a ZFS filesystem missing in the installer

There is no ZFS file system option while creating file system but as per release note it supports ZFS. So why this option not available. Please help.
1
vote
1answer
24 views

How to audit file created under a specific path?

I would like to know if there is an audit tool I can use to monitor the file created under a specified folder? I would like to know the user and program used (ftp, ssh , php) to create the file.
8
votes
7answers
1k views

Difference between / and /root in Ubuntu? [duplicate]

I have created 100 GB for /. When I opened Nautilus I have found the root folder. So what is difference between / and /root? My username is enigma, and I have a folder named enigma in the /home ...
1
vote
0answers
54 views

Dual-boot: EFI System Partition is RAW in Windows, readable with LiveCD

I recently installed Ubuntu 16.04 on dual boot with Windows 10 on my laptop, and at a certain point I ran a gparted 'check' on my /dev/sda1 partition (where Windows Boot Manager and Grub are). Now ...
0
votes
1answer
56 views

My main hard drive on ubuntu has no free space left

I have a hard drive that keeps filling up with data, but I'm unable to figure out what is causing it. I tried moving files, but the system just replaces that data with more useless data. This made it ...
0
votes
0answers
13 views

Stop access of LAMP localhost files through LAN

I have made LAMP setup on Ubuntu 14.04 system. My system is connected with LAN. Also other systems are also connected to the same LAN system. So in the router there are IP are showing like 192.168.0....
0
votes
0answers
23 views

Are there any risks of using noatime in /etc/fstab

if there are any, can you enumerate the risks of using "noatime" in /etc/fstab for the / volume? I have already added noatime to / and /home and i am wondering if for some reasons some services can ...
0
votes
1answer
19 views

Is there a file with system log?

In Ubuntu there's a program called System log, with log of system and all that you do with Ubuntu. I would ask if would be possible create a file.txt that refresh automatically with log from 'System ...
0
votes
0answers
13 views

Is there an OverlayFS type way of having upper directory files written to lower in the background?

I am looking for a way to have downloaded files in a tempfs mount - where downloaded files are immediately available - and have them written to a cloud mount (e.g. webdav davfs or Google Drive google-...
4
votes
2answers
39 views

How to find files that do not have a duplicate in a separate directory

I have an old backup of documents. In my current Documents directory, a lot of these files exist in different locations with different names. I'm trying to find a way to show which files exist in the ...
4
votes
1answer
38 views

Using binfmt-misc in conjunction with xattrs

I currently use a piece of sandboxing software on my 14.04 machine that isolates Linux binaries from one another (Using a special type of namespace isolation different than AppArmor) Currently, the ...
0
votes
0answers
28 views

How to restore unmounted ubuntu and windows partitions?

After a botched Ubuntu install (shut down during installation), my windows and ubuntu partitions are unmounted. From a live session in GParted I see that both partitions are clumped together in an ...
1
vote
3answers
64 views

Why is /usr/local/ owned by root?

I am wondering why directories such as /usr and /usr/local/ are owned and created by root. Usually I am logged in as a normal user and I want to store programs that I personally use in these dirs. For ...
0
votes
0answers
24 views

Create Compressed Directory

How to create a compressed directory in Ubuntu? Is that possible? I do not want to create an archive file (zip, tar, etc) but rather I want something like compressed directory in an NTFS (Windows) ...
0
votes
0answers
54 views

Root FS always full: /var/log/syslog and /var/log/kern.log flooding

I just installed Ubuntu Gnome 16.04 when it came out, on a brand new computer that I just bought. I have been a user of Ubuntu Gnome for a few years, so this is nothing but routine now. However, I get ...
0
votes
0answers
33 views

Error: Subprocess failed. Error: RPM failed: error: unpacking of archive failed on file /root/bin: cpio: chown

Error: Subprocess failed. Error: RPM failed: error: unpacking of archive failed on file /root/bin: cpio: chown while running update filesystem not updating