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
76 views

How to check if my installation of Ubuntu is alright?

I recently changed the size of the partition that contained my Ubuntu installation using Gparted from a live CD. I also moved it from one place to another. It was my first time and I hit the cancel ...
2
votes
1answer
37 views

Can't change the access time of a file

i cant change the access time of any file i create. i tried the touch -a, touch -ad, touch -t commands, but the access time in the stat utility stays the same. Can you please help me to modify the ...
3
votes
2answers
225 views

Is there any way, to make Ubuntu resistant to corruption of data?

I was using Ubuntu 14.04 when due to power interruption, my computer was shut down. On reboot, it was corrupted and I lost all my data.I want to reinstall Ubuntu again, is there any way,other than ...
0
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0answers
41 views

How to install all Gparted file systems?

When I open my Gparted and go to View -> File system support, I get this: How to remove all crosses and get all check marks instead, or in other words, how to install all missing file system ...
1
vote
0answers
46 views

Accidentaly formatted boot partition

I accidentally formatted the partition that contained the GRUB loader, so I cannot boot into Ubuntu 14.04 LTS. Background to the saga: I have an iMac with OSX and Ubuntu 14.04 LTS installed side by ...
0
votes
0answers
31 views

Install on a large btrfs partition with two sub volumes

I have a computer with a large btrfs partition containing two sub volumes / and /home. They are both compressed. There's also a separate swap partition. the /home partition has data on it and I hoping ...
16
votes
2answers
895 views

How to find the creation time of a file?

I need to find the creation time of a file, when I read some article about this issue, all mentioned that there is no solution like site1, site2. When I tried stat command it state Birth: - So how ...
0
votes
1answer
38 views

Can I install ubuntu 12.04 lts using ubuntu 14.04 lts trail version?

So my ubuntu 12.04 files are corrupted so i got ubuntu 14.04 on a flash drive and I am currently booting using the drive. So I was wondering is there and way by which I can reinstall ubuntu 12.04 lts ...
3
votes
1answer
111 views

How to edit a protected file if I have no direct access to the filesystem?

I changed the brightness of my machine by editing the /etc/rc.local file and adding this line echo 10 > /sys/class/backlight/nv_backlight/brightness before exit 0. After reboot I can see that it ...
1
vote
1answer
44 views

Hardlink count inconsistent with matching files

On searching for files that have hardlinks on my Portable HDD using the following command: $ find . ! -type d -links +1 -ls | sort -n I get an output of the following form (there are hundreds of ...
2
votes
1answer
52 views

Why does it take a long time to open certain small text files in Vim?

Why does it take a long time to open certain config files accessible only to superuser in Vim? For example: $ sudo vim /var/lib/polkit-1/localauthority/10-vendor.d/com.ubuntu.desktop.pkla It takes ...
0
votes
2answers
86 views

Can I Recover Firefox and Tor Bookmarks?

I will be going back to Windows, because after months of dealing with Linux, I realized it's not for me. In short, right now Linux won't present the login screen. There are things I want to save ...
-1
votes
1answer
53 views

Accidentally deleted etc/fstab [duplicate]

etc/fstab accidentally edited or deleted, I don't know. Please someone help me to solve this. I am new to Ubuntu. General error mounting filesystem. A maintenance shell will now be started. CONTROL-D ...
0
votes
2answers
57 views

What type of partition table and file system is required to make a live usb?

I see a bunch of stuff on using usb-creator to make a live usb for ubuntu which is great. What I don't see is what type of partition table and file system is required on the USB itself. Does it ...
0
votes
2answers
90 views

How can I create a bootable USB from an ISO image?

I'm trying to make a bootable USB drive from an ISO file. I have been trying with WinUSB. In the WinUSB graphical interface my USB drive is not showing up, even though it auto mounts. So I'm trying to ...
2
votes
2answers
197 views

Broken /boot partition: input/output error

The Problem The issue I am facing is that I get the following error on boot, after I select Ubuntu in GRUB: Error: File "/vmlinuz-3.13.0-24-generic.efi.signed" not found. unaligned pointer ...
0
votes
1answer
38 views

plenty free inodes yet cannot write to disk

I have a 1TB ext4 SSD mounted as data drive on ubuntu server 12.04. I use it to store files and noticed that @55% use I cannot add any new files/folders (get 'no space left on device' error message). ...
3
votes
0answers
89 views

btrfs two Data sections and enospc error when trying to convert

I currently have a btrfs filesystem setup on an ubuntu 14.04 setup like this: # btrfs fi df /storage/ Data, RAID1: total=2.33TiB, used=2.32TiB Data, RAID0: total=2.00GiB, used=2.00GiB System, RAID1: ...
0
votes
0answers
216 views

Gradle using terminal with Android Studio install on Ubuntu 12.04

Can not get the terminal commands to work with gradle. I trying to get Gradle to work outside of Android Studio as a prelude to scripting up various flavors of my app. I got the flavors to build ...
0
votes
0answers
90 views

How to mount PowerShot ELPH 300 HS on ubuntu 14.04?

I'm null on cameras, and I'm trying to mount my camera on ubuntu to see the photos. on lsusb: Bus 003 Device 011: ID 04a9:3229 Canon, Inc. PowerShot ELPH 300 HS / IXUS 220 HS on dmesg: ...
0
votes
0answers
26 views

Partition mounts by “mount” command but not using the “Disks” utility

I am facing a weird problem. I formatted a partition in my hard-drive with ext4 filesystem. When I mount it using the sudo mount /dev/sda9 /media/sda9/ command it mounts fine. However, when I use the ...
1
vote
2answers
113 views

How to find configuration files?

I know that the /etc folder handles different configuration files, but how does one know where the configuration files of a service (iscsi target for example) are located ?
0
votes
1answer
26 views

Limit the size of a folder

Okay, so I was looking into doing a bit of web hosting, and was wondering how I would put a max storage limit on a folder, so that there can't be more than say 5GB in the one particular folder. I've ...
0
votes
2answers
31 views

Windows 7 dual-boot Linux

I have a Windows 7 and I want to install Ubuntu. If i choose the option to install alongside with Windows 7, where's Ubuntu going to be installed. Is it going to be at my C: (System partition) or ...
1
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0answers
64 views

Strange output of btrfs fi df after converting from RAID0 to RAID1

I just converted my 3 disk btrfs filesystem from RAID0 to RAID1 and balanced it. At first the data was all in the RAID0 filesystem, so running btrfs filesystem df showed something like this: (XX are ...
1
vote
1answer
187 views

Ext4 larger than 16TB is stable for production systems? [closed]

Ext4 seems to have had a size limit of 16TB due to e2fsprogs. But e2fsprogs 1.42 release says it supports filesystem larger than 16TB. So, Ubuntu 12.04's current e2fsprogs' version is 1.42, and I ...
0
votes
0answers
12 views

Error: Unknown Filesystem Can't Boot anything

I was on Ubuntu 12.04.4 32 bit and got an error when I tried to add the ppa for Opera and ever since then I had kept getting an error where I couldn't use the built in software manager. I tried to ...
1
vote
0answers
19 views

KVM image size has changed?

We had a 180GB VM image. Inside the guest VM everything is OK and hdd size is 180G. but when we look the image size on the host it is 475MB. I am afraid that if we restart, the VM wouldn't work. I ...
1
vote
0answers
22 views

Detect file size decrease

I am saving streams from browser cache into my home folder. I wrote a script that takes the specific data type and saves them into disk, and names them as data.1, data.2 , data.3 and so on, creating ...
2
votes
3answers
240 views

In which drive my data is getting stored in Ubuntu

I have Windows 7 on my system. On starting PC, it asks me to select Windows 7 or Ubuntu 12.04. In windows, I have 3 parts, Drive C,D,J. When I open Ubuntu, I have category named "Devices". In that, ...
1
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0answers
16 views

Ubuntu File Appearing As Directory

I have this php file that somehow is showing as a directory. It still has a php extension but when I cd the file I get: base: cd: satisfaction.php: Input/output error When I vim the file it looks ...
1
vote
1answer
128 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 ...
0
votes
2answers
37 views

root filesystem too small - what's preferrable?

After a number of upgrades, and a steady flow of software installed, the original root filesystem is starting to split at the seams. The original (Notebook) setup: (LVM) / 17G everything ...
3
votes
3answers
53 views

How to make two directories identical?

I have a Documents file in my home directory as usual. Now in my dropbox folder I have created a new directory named Documents. Now is there any way such that this two could be same? i.e if I update ...
0
votes
0answers
23 views

My / filesystem is running at 100% Need to re-volume to add more space.

I've deleted and move lots of logs and files, but still says "Avial" is 0. What gives? this is what I have Filesystem Type Size Used Avail Use% Mounted on /dev/md1 ext4 56G ...
9
votes
1answer
651 views

Accidently deleted my /etc/default folder

I Accidently deleted my /etc/default folder. Now my computer wont boot. Its running Ubuntu 14.04 LTS. Upon boot it says, Filesystem check or mount failed. A maintenance shell will now be ...
1
vote
0answers
279 views

ZFS vs btrfs on Trusty [closed]

I have been running Precise with ZFS on root for the last two years on a home file/media server and HTPC. I am looking at rebuilding the server using Trusty and I am wondering if I should be using ...
0
votes
1answer
53 views

How To Get List Of Files From Audio CD Bash Terminal

I've been using VLC with command line batch files for years to rip audio cds. I just tried writing a similar bash script in Ubuntu 14.04 and was surprised--I can't figure out how to get a list of ...
0
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0answers
19 views

Disable filesystem read cache

How can I disable the Linux filesystem read cache for Ubuntu 12.04? I do not want to only free the actual cache ( echo 3 > /proc/sys/vm/drop_caches ) but disable the read cache completly.
1
vote
1answer
31 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 ...
0
votes
0answers
33 views

Installing problem at boot screen

I was installing Ubuntu and after the long part I reach the boot screen and then it start loading with the Ubuntu logo and it says there is a problems with /tmp and when I ignore it says I can't and ...
2
votes
2answers
57 views

How do I seperate my boot partition from my storage partition?

I have a dual-boot Windows 7 and Ubuntu 14.04 system. The windows partition is on my larger 1 TB HDD, but my Ubuntu was installed onto my significantly smaller 32 GB SSD. Without completely ...
2
votes
0answers
39 views

Too many FATs on USB Drive?

A while ago, I wrote an image on a USB drive using something along these lines: dd bs=4M if=/path/to/image.iso of=/dev/sdb && sync Something must have gone terribly wrong there because ...
0
votes
0answers
87 views

What happens after /tmp reaches the limit of tmpfs

Imagine this is the configuration in /etc/fstab (/tmp directory uses tmpfs wih maximum size of 10M). none /tmp tmpfs noatime,nodiratime,size=10m 0 0 I want to know what exactly ...
1
vote
0answers
778 views

Ubuntu 13.10 to 14.04 upgrade: Filesystem check or mount failed

I had a power failure while upgrading from 13.10 to 14.04 and and ended up with a couple of problems. First I ended up the "system is running in low-graphics mode" error described here and managed to ...
12
votes
5answers
571 views

Using cd command to navigate directories in Ubuntu which have special characters [duplicate]

When I want to navigate into directories having special characters in their names I get an error message. For example: aman@desktop:~/Aman$ cd !)e$!gn&(reate bash: !: event not found ...
1
vote
0answers
44 views

Trying to move usr and home to usb drive

I'm running Ubuntu through crouton on a Chromebook 14 and since the system only has 18GB of space I want to put /home and /usr on a 32GB flash drive that I will have attached to the system. I have ...
0
votes
0answers
207 views

btrFS RAID5/6 Understanding space usage and usability

Im currently thinking about experimenting with btrfs with my workload in place of ext4. Right now I have a few drives on order. I want to setup btrfs on the first drive and slowly expand the FS ...
0
votes
2answers
59 views

Difference between root and home

I download a program from repository and install that. I know we need three partitions for Linux: (1) SWAP, (2) / (3), /home. Also I know /home is like a user profile and / is like a operating system ...
4
votes
2answers
379 views

Cannot mount second drive at “/”

I have a second drive that I want to be mounted at the root. The drive contains the following folders: /home /shared I want those two folders to be accessible at "/". I can mount the drive at ...