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

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0
votes
1answer
144 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
49 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
237 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
votes
0answers
70 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
70 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
36 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 ...
17
votes
2answers
1k 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
41 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
129 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
73 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
73 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
265 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
85 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
143 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
156 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 ...
3
votes
2answers
520 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
80 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). ...
0
votes
0answers
629 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
35 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
134 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
31 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
36 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
vote
0answers
187 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
522 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
18 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
22 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
279 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
vote
0answers
25 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 ...
2
votes
1answer
369 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
93 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
75 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
25 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
707 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
350 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
114 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
votes
0answers
43 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
33 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
36 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
80 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
75 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
125 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
2k 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
770 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
73 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
321 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
65 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
400 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 ...
3
votes
2answers
970 views

Installing Ubuntu 14.04 on a F2FS partition

How can I install Ubuntu 14.04 on a F2FS partition? I created the partition with Gparted but during the installation the Ubuntu installer could not recognize the filesystem on the partition. I heard ...
3
votes
2answers
52 views

Mounting a filesystem?

I know how to use mounting in linux and have used it many a times but I am not able to understand what mount actually means in operating system,its benefits and practical usage? I have searched it on ...