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

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5
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1answer
1k views

Ubuntu installer thinks my drive is empty, does not see windows paritions

I am trying to install Ubuntu10.10 64bit. I just installed Windows 7 64bit moments ago. My drive is currently partitioned like so: 100MB Boot partition (automatically made by windows 7 installer) ...
3
votes
1answer
39 views

How can two files on a CD-ROM have the same inode number yet have a link count of 1?

As I was doing some sorting of my collection of CDs, I found out that processing the output of a find with sort -u was giving me a smaller list than plain sort, so I investigated. Using diff on the ...
3
votes
1answer
143 views

Inconsistent parent directory of all symlinks

A large portion of my system depends on symbolic links, so this is a very serious problem. I do something like the following cd mkdir test mkdir other cd test ln -s ../other/ # So ~/test contains a ...
3
votes
1answer
762 views

Ubuntu for phones - is there a terminal similar to the one known from PC's?

I am thinking about install Ubuntu on a phone. I spend a lot of time in terminal while working on my PC. There are much things I do using bash scripts, for example. Then, is there a terminal on ...
3
votes
1answer
190 views

Is file permission secured when it transferred from Ubuntu to Windows?

I am having 9GB text file which is encrypted . This file contains some confidential data . Which is on my system(Ubuntu) and my external HDD (ntfs) . This file get daily updated and then encrypted . ...
2
votes
1answer
66 views

To transfer the present ubuntu image to other system

I want my Ubuntu with all installed applications and local files to be transferred to other system, which I ll be dual booting. My present system is also dual booted. I wanted to know if that ...
2
votes
1answer
36 views

I rm -rf'd /var/!

I recently rm -rf'd all of /var/ on my box and I've made a VM with the same OS/bit, I plan to upload all of the contents from the fresh VM and replace my messed up /var/ on my box with it. What's a ...
2
votes
1answer
142 views

Accidentally partitioned media drive as ext3 during install (was ext4), how can I recover?

I recently did a fresh install of ubuntu on a system with an old ubuntu install. I have a separate hard-drive which used to have a single ext4 partition, but during the install I accidentally selected ...
2
votes
1answer
94 views

Large discrepancy between df and du

My / partition which holds everything (including /home), was suddenly using 100% of disk space. I removed a few files and now df shows $ df -h /dev/sda1 Filesystem Size Used Avail Use% Mounted ...
2
votes
1answer
899 views

Double click not working as expected in file manager

I have Ubuntu 14.04 installed on my laptop. I have a Dell XPS l502x which works very good. I just noticed this (possible bug?) with Ubuntu 14.04 while in the file manager in the home folder. When I ...
2
votes
1answer
356 views

Files saved with Ubuntu is not visible in Windows 8

I have dual booted my laptop with ubuntu 12.10 and windows 8. When I download some file via ubuntu (e.g a pdf) and save it on a windows partition(NTFS), I do not see it through windows 8. Even when I ...
2
votes
1answer
388 views

Grub corrupted and etc directory missing

I have a dual installation with Ubuntu 10.04 and Windows 7. I was in windows, I had to restart my machine and my grub was not loading. I used boot-repair to load my grub. However, my linux ...
2
votes
1answer
455 views

Moving Kubuntu from hdd to ssd

I bought a new SSD to install it in my HTPC. Before, I had an HDD with Kubuntu. I would need to copy the files from the / partition from HDD to SSD. To do this, I booted from the Kubuntu livecd, ...
2
votes
1answer
763 views

How do I interpret the output of the filefrag command?

I have a dump file in my system that has confidential data in it. I tried using the filefrag command to open it. The output is: root@sateesh935-SVE15115ENB:/home/sateesh935/Desktop/g3# filefrag -v ...
2
votes
1answer
636 views

Ubuntu Server 12.04 start fails after update

I did an system update on Ubuntu Server 12.04, which requested a reboot. Since that, the system never reaches the login. It hangs on: mount: mounting /dev on /root/dev failed: No such file or ...
1
vote
1answer
53 views

Disk allocation

I installed ubuntu 15.04 and used entire space(640 GiB) for ext4 partition but now it is showing that used space = 30.91 GiB, free space = 24.96 GiB and 536.40 GiB unallocated space. I tried to extend ...
1
vote
1answer
63 views

Re-install and keep home partition with btrfs - lost files

So, I was running Arch Linux with separate / and /home. Both were btrfs partitions, but the whole drive was not managed by btrfs. I decide to install Ubuntu 14.04. I carefully select to format / and ...
1
vote
1answer
58 views

ntfs-3g Failed to decompress file

For years the logs of my Ubuntu systems sharing drives with a Windows installation have been routinely flooding logs with: Mar 17 11:00:50 kemosabi ntfs-3g[483]: ntfs_attr_pread error reading ...
1
vote
1answer
996 views

Sanddisk drive write protected

My sanddisk usb write protected i tried ashokkrishna@ashokkrishna-Lenovo-B560:~$ sudo mount -o rw /dev/sdc1 /mnt mount: block device /dev/sdc1 is write-protected, mounting read-only # sudo mkfs -t ...
1
vote
1answer
23 views

Minimizing effects of large number of files

I need to manage a filesystem with a large number of files (hundreds of thousands). This filesystem is rsynced periodically. The vast majority of files don't change often, but since there's so many, ...
1
vote
1answer
1k views

mtp usage: how to mount and transfer files to and from a Samsung: Galaxy model Android phone

how do I use mtpfs to read/write to a USB connected Android phone, connected as a mass storage device: thufir@dur:~$ thufir@dur:~$ mkdir phone thufir@dur:~$ thufir@dur:~$ sudo mtpfs -o allow_other ...
1
vote
1answer
54 views

How can I get rid of /etc/../run?

For some reason (most probably happened during an upgrade more than one year ago), my system has a directory called /etc/../run (strange, right?). It is empty but I cannot remove it: $ ls ...
1
vote
1answer
17 views

file missing, help with recovery

I have Ubuntu 12.04 LTS with Windows 7 as dual boot. While on Ubuntu, I was using files and folders from the windows partition. I made a folder in the windows partiton, copied in it a ".docx" document ...
1
vote
1answer
52 views

Where can I find a unified explanation of lower-level filesystem structure in Ubuntu?

This is not a duplicate question about file-system hierarchy that can be answered by pointing me toward man hier, ubuntu-policy, or something. I've looked at those questions. My problem is that I ...
1
vote
1answer
47 views

Does encrypting home folder during the installation also encrypt other user's home folder after the fact?

If I were to select the option to encrypt my home folder when installing Ubuntu, then does Ubuntu automatically encrypt other user's home folder that I create after I installed Ubuntu?
1
vote
1answer
507 views

Deduplication using SDFS file system

I am trying deduplication with sdfs.(ubuntu 13.10 on Vm). (http://opendedup.org/quickstart) followed the same steps as this mounted the file system on /media/pool0/ When copied a directory ...
1
vote
1answer
125 views

Why some web pages/files saved to NTFS can be accessed in Ubuntu but not in Windows OS ?

I'm having problem opening files which I saved in Ubuntu with Firefox web browsers "Save Page As" in a NTFS partition. The files can be viewed/accessed (using web browsers or text editors or word ...
1
vote
1answer
585 views

GParted bricked my USB Drive

I tried to use GParted to rename my USB Drive. Everything appeared to run smoothly, but when I removed the drive and reinserted it, it wouldn't mount. I can see the USB initialisation in dmesg, and ...
1
vote
1answer
887 views

lvreduce too much. Can I recover this?

I was trying to take a hard drive out of a large LVM group consisting of 5 drives. It had a 5.5TB filesystem (ext4). The LV was 7.5TB. I wanted to reduce the LV by 1.82TiB so that I then could shrink ...
1
vote
1answer
51 views

Can't see system drive Sda1

I can't see my "C" drive any more (excuse the DOS notation) It doesn't show up in my home folder.The drive is partitioned into a 30GB Root and the rest reserved for data None of it shows up in my home ...
1
vote
1answer
33 views

saving screenshots from before OS is installed

I'm doing an assignment which requires me to take screenshots of everything I do, including taking screenshots of using using the partition manager in the "test" version of Ubuntu 12.10. How can I ...
1
vote
1answer
228 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 ...
1
vote
1answer
1k views

Question about Ubuntu 12.10 extracting a .tgz file in the wrong directory

I installed the Ubuntu 12.04 then I reinstalled Ubuntu 12.10 (the version along with Window 7) When I was using Ubuntu 12.04, I typed ls to show what file are listed in directory(included ...
1
vote
1answer
87 views

How can I change the standard files in nautilus?

I don't like the standard files in Nautilus (the ordering by data types - Images, Music, Videos, Documents etc.), how can I change this or can I change this ordering without getting problems with ...
1
vote
1answer
816 views

Live-Ubuntu 12.04 ran fine, now stopped booting!

I've seen similar problems to this several times in the forum, but mine is a bit different, so the other posts I saw were no help to me. When I boot Ubuntu 12.04 64-bit from live-SD-card (3GB ...
1
vote
1answer
595 views

Problem accessing second hard disk with Squeezebox server

I have recently re-purposed my old desktop PC as a 'server' running Ubuntu LTS 12.04. I want to use the machine as my primary squeezebox server in place of my HTPC MacMini (to reduce the strain on the ...
1
vote
1answer
583 views

Clean mounting HFS+ partition after power failure

I have a rather large external harddrive formatted in Apple's HFS+ format, and reformatting it is not an option for me. Now that I have a linux server at home, I have turned journalling off on the ...
1
vote
1answer
811 views

How do I Access Files from one Ubuntu Partition on Another

A terminal error occured on my computer and I found myself unable to log in to Ubuntu. To remedy this, I decided to simply install it again on a partition and then access my saved files on the old ...
1
vote
1answer
45 views

What files get edited when the system time changes?

If the system time is changed on Linux, what files get edited? I know the timezone is kept in etc/timezone but is there anything if the timezone is not changed, but the time is?
0
votes
1answer
28 views

How to change FileSystem from, msdos to ext3/ext4 on a specific drive

I am relatively new to Ubuntu and I have recently added a new 480Gb+ SSD drive. When I attempted to install a program onto the drive it wouldn't allow it to happen and a error would occur. I ended up ...
0
votes
1answer
29 views

How do I get out of root@ubuntu:~#

I powered off my pcDuino system and now I am getting errors and eventually ending up in root@ubuntu:~#. When I try to "exit" the root super user it only shows my last login on tty1 as being in root. I ...
0
votes
1answer
70 views

File system root low disk space

I installed Ubuntu Gnome 14.04 a month back. It all worked perfect but after two days I repeatedly got the notification - File system root low disk space 0 MB left. I had installed everything ...
0
votes
1answer
75 views

Problem reading exFAT XQD card Ubuntu 12.04

I am having a problem reading files from an exFAT formatted XQD card. The card was formatted by a Sony fs7 camera and contains 4k video files shot using the fs7. The card is a lexar 64gb and the card ...
0
votes
1answer
51 views

Error while installing ubuntu 14.04 alongside windows10 using wubi

I am using windows10 in my system. I tried to install Ubuntu 14.04 alongside windows 10 using wubi. It shows the following error. If I click "ok", then it shows the same error again.
0
votes
1answer
53 views

Problem accessing old data on btrfs /home in ubuntu 14.04

I recently did a fresh installation of ubuntu 14.04 64 bit on my pc. Previously I was dual booting ubuntu 14.04 with windows(both 32 bit). My hdd is 500 GB. The previous structure of the hard disk was ...
0
votes
1answer
64 views

GRUB Rescue - Cannot use insmod, msdos3 does not appear and bootable CD is not working. Please help

First, I must confess that I know almost nothing about Ubuntu, GRUB, GNOME, or anything else to do with Linux. I've been using Windows for as long as I can remember, so my experience with Ubuntu spans ...
0
votes
1answer
20 views

Is O_NOATIME safe to ignore?

I am designing a filesystem to be implemented in FUSE. I have a question regarding what is allowed and best practice. There are 2 scenarios: User process calls open(..., O_NOATIME). Filesystem ...
0
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0answers
16 views

How to move the header files and binaries in FileSystem?

I have downloaded Imlib package in Home folder and perform the make there only. Now, my code where I am using #include "Imlib.h" is not able to find it. So how can I move the header files and binaries ...
0
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0answers
79 views

After mounting an exFAT drive under linux I am now unable to mount in on my Mac

I used sudo apt-get install exfat-utils exfat-fuse to be able to mount an exFAT drive under linux. This worked perfectly. However, the partition is now not visible on my Mac anymore! Did the ...
0
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0answers
2k views

Errors during start-up: “Scanning for Btrfs filesystems”

I have installed Ubuntu 12.10 desktop on three systems and one virtual machine. On every system I have opted for a single Btrfs partition. During start-up I get the following two error messages. It ...