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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0answers
13 views

Root FS always full (/var/log)

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
12 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
0
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0answers
28 views

Make world writeable files and directories colored normal in terminal

I have three partitions on my computer, one for windows, one for Linux (Ubuntu 16.04), and one shared between the two OS, formatted in ntfs. I mount the shared partition on startup and created a soft ...
0
votes
1answer
35 views

Filesystem Information shows between Plymouth and Login Screen 16.04

This is by no means a major issue but I thought it was a bit odd. Immediately after the Plymouth splash screen disappears and before the usual Ubuntu login screen appears, a tty style terminal ...
0
votes
1answer
10 views

Remove files created through mount & owned by root

So, I have been doing some trial & error learning about bind mounts in Ubuntu Desktop 14.04... I got everything working the way I wanted it, but as a result of my trial & error learning the ...
15
votes
4answers
2k views

using locate on an encrypted partition

I selected /home/ to be encrypted when I was installing Ubuntu. Now, is it possible to make locate work with an encrypted partition like this?
0
votes
1answer
80 views

Installing Ubuntu Server 16.04 on Vmware

I am installing Ubuntu 16.04 virtual machine on an Intel server using vmware. For some reason, it is creating the root file system as ext4 but I NEED it to be ext3. Is this possible? I have been ...
0
votes
0answers
12 views

UBUNTU 14.04 not reading Blu-ray data disks correctly

I have a few Bluray disks (50GB) with archived data files on them. To Ubuntu 14.04, all files in the top directory appear with their names and "binary file" type, but nothing more. I cannot access ...
0
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0answers
9 views

Making a Live CD in Xubuntu

As soon i realised how important is to have a backup of your files,i bought a external drive in order to backup them.Now i want to switch to another Operatins System but still keep my Xubuntu Copy on ...
0
votes
0answers
15 views

Encrypted USB stick, unrecognized file system?

Good morning, I'm in need of assistance in creating an encrypted usb drive. I used the format LUKS+EXT4 option, now when I plug in the drive I'm asked for the passphrase but then I get a warning ...
0
votes
1answer
21 views

Where does update-initramfs look for kernel versions?

I changed a file in /etc/modprobe.d so I needed to regenerate initrd. Doing this: update-initramfs -u -k all threw up errors for a kernel I compiled and then deleted some time ago (because ...
3
votes
2answers
6k views

Why does my root filesystem keep becoming read-only?

I've lately been having an issue with my root filesystem becoming readonly. It happens some amount of time after boot. I don't know exactly when it happens, as I don't usually notice it until ...
5
votes
3answers
52k views

Damaged SD card (badly unmounted?) How to fix?

First Off I'm using Ubuntu 12.04 on a laptop with a built in card reader. I have a sandisk 8Gig micro sd card that came with my HTC Desire HD phone. Unfortunately I had mounted it to a windows ...
-1
votes
0answers
16 views

Need to know whether a named pipe stores data in them

I got a situation where i need to select and option from a switch case.For each option there is a text related to it which needs to be stored in a file descriptor.For this process my senior gave a ...
175
votes
6answers
164k views

How is the /tmp directory cleaned up?

How is the /tmp directory cleaned up? Is it automatic? If so, how frequently is it cleaned up?
15
votes
2answers
53k views

Where is the default folder for Apps?

I am relatively new to the linux world. I use OSX at home and Windows at work. In those worlds, there is a default folder for applications (C:\Program Files, /Applications). Is there any such ...
0
votes
1answer
20 views

Input/output error when accessing a directory

I have ubuntu 14.04 installed on a 256Gb SSD (Sandisk). The drive is partitioned to 120 GB (with OS) and the rest as a secondary Data partition. The Data partition has started having I/O problems this ...
3
votes
0answers
30 views

Fastest File System Type

We currently/still write to tape for off-site backups (avg size is 80 GB per day) and the robot is misbehaving as of late. I'm setting up an NFS share on Ubuntu Server 14 (16 when it releases) to ...
2
votes
2answers
35 views

Finding my swap partition

It looks like I have 40 GB of swap: wuser@wavesftwDell:~$ cat /proc/swaps Filename Type Size Used Priority /dev/dm-1 ...
3
votes
1answer
3k views

How many bytes in 1 block or 1 inode?

I'm trying to specify the amount of disk space for specific user in my Ubuntu Desktop 12.04 LTS System. I manually configure disk quota by editing /etc/fstab and add 2 more option next to the defaults ...
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: ...
0
votes
1answer
28 views

Why do i get wrong filesystem error on mounting external drive whilst correct ntfs-utils is installed?

since today I get the following message when inserting usbstick/sd card: Aankoppelen bestandssysteem is mislukt Error mounting /dev/sdb1 at /media/wouter/Kali Live: Command-line `mount -t ...
39
votes
4answers
7k views

Accidentally created directory named “~” (tilde)

I managed to make a directory literally named ~. (Apparently, Python's os.mkdir('~/something') does this.) How do I remove it without nuking my home? Also, if it helps, I have my real /home on a ...
0
votes
0answers
13 views

Is it safe to move the kernel source directory?

I am compiling the kernel so I can use patches written by folks with the same device, with help from that community. Since I started by opening a terminal and typing wget ...
1
vote
1answer
101 views

ext4 broken file system on ubuntu 14.04.4

I have a desktop computer with Ubuntu Desktop 14.04.4 LTS 64-bit with an attached HDD USB 3.0 4TB Intenso 1 partition ext4 data drive only (no OS or Apps). After a sudden power failure I am unable to ...
1
vote
1answer
55 views

My normal user file system only works in read-only mode and i don't have the password for the root user

I have Ubuntu Server V14.10.the administration of this system disappears with a former employee. I do not have the root password and apparently the file system for the user that I use is protected and ...
0
votes
0answers
30 views

Create a rootfs in the SD card

I try to make a rootfs in the SD card with Debian Chroot, but after mounting the loop I don't know how to continue. I want to mention that I don't know how to use debootstrap (and I'd prefer not to ...
70
votes
8answers
11k views

Does Ubuntu damage USB drives?

Whenever I unmount a USB drive with Nautilus and plug it to a Windows machine, I receive a warning that the drive needs to be repaired. (the same message like in this screenshot) For 10+ years ...
1
vote
1answer
4k views

13.10 to 14.04: Filesystem mount failed: How get to maintenance shell?

While upgrading from 13.10 to 14.04 we got a power cut: When we restarted the machine we got a system fail; I'm getting the readout below: 'Filesystem check or mount failed. A maintenance shell will ...
6
votes
0answers
413 views

Disable filesystem read cache

How can I disable the Linux file system read cache for Ubuntu 12.04? I don't want to only free the actual cache. echo 3 > /proc/sys/vm/drop_caches but disable the read cache completely.
1
vote
1answer
1k views

Delete files on HDD while using LiveCD

I've got a little problem. After installing the latest upadates Ubuntu 13.10 (IIRC) and rebooting, I can access the GUI log-in interface, but after entering my password the monitor remains black with ...
-2
votes
1answer
36 views

Where can I find a folder containing icons of all my applications, that I can double-click? [duplicate]

Where can I find the folder where I can see icons of my applications and click on them as I am accustomed to from other operating systems? (N.B. Please see my comments re duplications.)
13
votes
5answers
20k views

Solving permission problems when using external EXT4 hard disk with multiple linux installs

Hello I have a external hard drive and since I only use Ubuntu and Fedora I decide to format my hard drive to ext4 everything is fine. The problem is when i mount the drive i need to change the ...
0
votes
1answer
22 views

Error creating bootable USB using “cat file.iso > /dev/sdb”

At first, I had this USB flash drive with a Ubuntu 14.04 LTS bootable in it. But now, I want to remove/wipe it and create a new bootable of another OS. First, I tried directly: sudo cat file.iso > ...
0
votes
0answers
17 views

Can't start without systemctl after moving /home

Due to storage limit I recently moved /home, /tmp and /usr directories of an Ubuntu Unity 15.10 installation from independent ext4 partitions to ZFS datasets. This question relates the process I ...
0
votes
4answers
5k views

Permission Denied when trying to download a torrent?

I want to know the solution to this and resume my downloading. I am running Ubuntu 10.10.
0
votes
1answer
28 views

Pasted file has more MB than the copied?

Ok so I have ubuntu 15.10 installed on a USB and boot with it as my main OS on this computer. The computer has 2 hard disks one connected to a SATA interface and one through USB too... none of them ...
0
votes
1answer
28 views

Finding a large file being created by the system

I ran some code that caused root file system to run out of space; the code then crashes and the file is deleted. I need to find out which file is being created there. How can I quickly (while the ...
1
vote
2answers
304 views

/sys/bus/usb/drivers/r8712u/new_id is unchangable

I got my newly purchased wireless stick to work, but I had to change the /sys/bus/usb/drivers/r8712u/new_id file during the process. I somehow managed to add the string "050d 11f1" to it, but it seems ...
0
votes
0answers
32 views

Move /home and /usr to ZFS datasets

I installed Ubuntu to an SSD. Setting up specific partitions for /usr, /home and /tmp. This is my /etc/fstab: #Entry for /dev/sda4 : UUID=590649b2-d8ce-489d-975a-0d5415bffbaa / ext4 ...
0
votes
1answer
26 views

I created the file \.sh , am I in trouble?

I had a really bad idea: Curious about what could happen, I wanted to try to use various non-alphanumerical characters as file names. Think may have been a bad idea. I created the a file in the ...
0
votes
1answer
48 views

Can /home/user/music and other media folders be moved to a separate drive? [duplicate]

I have two hard drives. One is a 256GB SSD and the other is a 1TB HDD. I installed Ubuntu to the SSD and that is where my /home directory resides. I would like to use the HDD for media storage. How ...
0
votes
0answers
17 views

Making Ubuntu Touch wriable

I am running Ubuntu Touch on my Nexus 4. By default the Filesystem is readonlya and I would like to make it writable . In this Link [1] it is promised to use this command,via a USB connection by using ...
0
votes
1answer
19 views

Resized Primary Partition, Filesystem Size Not Updating

I moved and resized by /boot primary partition using gparted. sudo parted /dev/sda print Number Start End Size Type File system Flags 1 1049kB 256MB 255MB primary ext2 ...
12
votes
3answers
17k views

Change the default Downloads directory

I originally had a Downloads folder, but decided to create a separate partition for it. So I renamed Downloads to Downloads2. I know, I should have just cut and pasted the content, but this seemed ...
0
votes
0answers
52 views

initramfs unable to find a live medium containing a live file system

When I turn on my laptop I am getting the following message: BusyBox v1.21.1 (Ubuntu 1:1.21.0-1ubuntu1) built-in shell (ash) Enter 'help' for a list of built-in commands. (initramfs) Unable to find ...
1
vote
1answer
44 views

Allowing an OS to use unclaimed free disk space on other partitions for temporary purposes?

Let's say you have something like the following situation: three partitions, one small with OS, and several bigger ones, let's assume all are ext4: / - 10 GB size, 9 GB used, 1 GB free ...
1
vote
1answer
49 views

How do I give myself access to /var/www to create and edit files and folders in it without 'sudo'?

I have a folder in my web server /var/www. I need to add files to the folder, but the system will not let me unless I use sudo. Is it possible to give myself access to modify the folder and its ...
3
votes
1answer
59 views

Is it possible to change the filesystem type of the Compact Disc (CD) in linux using terminal commands?

I have a new Compact Disc (CD) which is sony(rewritable) and its Filesystem type is UDF. Now it is possible to change it to CDFS filesystem using terminal commands or any other software? The reason ...
6
votes
2answers
1k views

Why there are 2 directories having same content?

cd /proc/$$/root/bin cd /bin After running ls command on both the directory, I found that content of both directories are same (which is nothing but list of commands). Is there any specific reason ...