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
36 views

What is the safest method for repartitioning space from the / partition? [closed]

I've got a 240GB SSD that I'm using as my boot/applications drive and only have Ubuntu 14.04 installed, so no finagling with Windows or OS X installs. I originally partitioned off 40GB of that 240GB ...
0
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1answer
28 views

How to migrate to a newer hard disk?

I am using Ubuntu 14.04 LTS and as I am very new to Linux I don't know how to copy my entire setup to a new disk. I have prepared a 500gb Hard disk drive with 5 partitions. I'd like to move my ...
1
vote
1answer
98 views

Where does CHEESE store its images?

I have taken some pictures using CHEESE, but now I cannot locate those images, so I can do nothing with them. I can't even delete them for the CHEESE GUI does not allow me to do anything with the ...
0
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1answer
21 views

Safely move (rarely changing) operating system directories to SSD drive

I would like to move some directories that contain binaries to an SSD drive. How should I safely go about it? /usr /opt Please consider safely emphasized. [14.04.1]
0
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1answer
16 views

Saved document doesn't inform user about no-saving the information

I supported a person who received a .doc in Thunderbird as an email attachment, opened it, filled in a form and saved it. But the user couldn't find it anywhere. Thing is that is was saved in /tmp . ...
0
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1answer
415 views

Why do I not see my /bin, /var, (etc.) directories in my root partition?

I recently bought a VPS and when I log in as a root user, I dont see the /boot, /bin, /var, etc. directories. Why is this? This is what I see when I use my ls -la command in the terminal. I am the ...
0
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1answer
65 views

How can I design one Linux file system? [closed]

In an interview, I came across this question. He asked me "Design a linux file system." He asked to give what all things I would need, Data structures and all. Can anyone help me in this that how I ...
0
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0answers
41 views

Increased partition size of virtualbox installation succesfully; can't address extra space

and thanks in advance for reading. So I installed Ubuntu desktop (version 14.4) on my 64 bits Oracle VirtualBox (version 4.3.20). All fine. I gave it 10 GiB's of space. Also fine. Run it on an i7 and ...
1
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2answers
46 views

What does the grey slice in disk usage represent?

When I right click on Properties for my ext4 partition I get the following pie chart: The meaning of the blue and white slices are fairly obvious, since they are in the legend to the right, but ...
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2answers
17 views

Do files under /opt and /var change much other than during software installation?

Do files under the following mount points change other than during software installation? /opt /var Can they be placed on read-only media?
2
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1answer
603 views

Does Ubuntu plan to move to btrfs as default filesystem?

Btrfs seems to have a set of useful features such us snapshots and is default in Opensuse and Suse.Fedora plans to move to it. Does Ubuntu plan to move to it? If not, why ?
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3answers
302 views

Install Ubuntu in dual boot on an encrypted partition

I'm totally new to Linux and I'm trying to achieve something, but I don't know if my plans are okay. I would like to have Windows 8.1 and Ubuntu in dual boot. Windows is on my RAIDed SSDs, and I ...
1
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0answers
25 views

How to configure VM to mount filesystem share as writable

Here is my situation. I have a host computer running ubuntu server 14.04 It mounts a dev from fstab: /dev/sdb2 /media ext4 rw,nosuid,nodev 0 0 Permissions on the mounted folder are owner=root, ...
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2answers
359 views

What is the purpose of the bin directory? [duplicate]

What is the purpose of the bin directory? What are some examples?
0
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0answers
52 views

recovery lost data from corrupted file system

trying to restore/backup/save data from a corrupted hdd (windows 7 installed, no boot, no mount). windows just wants to format it and via "computer management -> disk management" its shown as "RAW" ...
0
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2answers
174 views

Root filesystem check failed

While updating ubuntu my system crashed and after restarting and entering to ubuntu I get the message Root filesystem check failed.Very much similar to the post Ubuntu 13.04 to 13.10: Filesystem check ...
1
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0answers
42 views

Where is the missing hard disk space? [duplicate]

df tells me that the server uses 84% of the HDD it uses. $ df -h Filesystem Size Used Avail Use% Mounted on /dev/xvda1 30G 24G 4.6G 84% / none 4.0K 0 4.0K 0% ...
0
votes
1answer
14 views

What could possibly be changing the access time of old backedup files?

I am using ubuntu 14 LTS 64 bit. I keep backup of my source files in /var/src-backup/. I was examining the access date of all those files and it appears as though the files have been accessed at ...
0
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1answer
35 views

Ubuntu Server Var directory deleted

How can solve the problem of accidentally deleted var directory of Ubuntu amazon aws server.My website down right now.Support from amazon is paid service I am new to Ubuntu Hosting and unable to pay ...
1
vote
4answers
104 views

Change visibility of files for non-root users

I have a file that is only visible in root mode. I want to make it visible for non-root users. I added permissions such that the maximum of person can read, write and execute it (even if only read ...
1
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0answers
31 views

unsquashing a liveUSB, I found that the filesystem is not identical to the one loaded from liveUSB

so I have ubuntu studio 64 in a live USB and I wanted to change the way it boots. Namely, the liveUSB boots directly to a live user session bypassing lightDM. I want to change that and as I figured ...
0
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1answer
64 views

How to change the permissions of the sound devices so only audio users can read and write

Summary: I want to know how to change the permissions of my sound devices so that only my user can read and write to them. I thought this could be accomplished by chmod 0660 /dev/dsp* but /dev/dsp* ...
0
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0answers
58 views

lvm VG on boot disk (array) not found with vgdisplay but VM VG seen

I have weird problem with VM server and two raid arrays: OS is installed /dev/sda (raid-5 array) with vg-disk (group?) with id vg_server1 which is created during installation. Later on there is ...
0
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0answers
50 views

After Ubuntu update Unable to install program from cd-rom using Wine

running Ubuntu 14.04. A few months ago I installed a windows program from a cd-rom using Wine. Program worked fine. Now I wish to update the same windows program using an updated cd-rom. Just prior ...
2
votes
1answer
46 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 ...
0
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3answers
66 views

I'm ubuntu newbie, need help. on Dell 5537

I just got a new Dell 5537 i7 laptop with Ubuntu pre-installation on it. It's my first time to use Ubuntu system. I know may be my questions hav been asked before but frankly I tried to look them up ...
1
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0answers
73 views

Lost+found folder still present even after reformatting partition - how to remove?

I'm trying to reorganize the partitions on the 2 HDDs that I have on my system. One of the partitions (ext4) is 883 GiB (according to gparted) and apparently has 14 GiBs used. However, if I mount ...
2
votes
1answer
41 views

Will creating a directory inside a system directory with 777 permission cause security vulnerability?

Can creating directories with 777 permission inside system directories cause any security weakness? For example, say I open a directory called Custom inside /usr/share/backgrounds/ and give it 777 ...
0
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1answer
76 views

Whenever I open my home (~) folder with nautilus, there is an endless loading

Ubuntu 14.04. Kernel 3.13.1-031301-generic. If I change to another folder the endless loading (*) from hard drive stops. I don't have much in that folder. Any idea what might cause that, or how I ...
0
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1answer
609 views

grub rescue, can't boot from usb

I have ubuntu and windows 8.1 dual boot. Suddenly I got the grub rescue screen. I tried grub rescue > ls command and it lists down (hd0) (hd0,msdos1) (hd0,msdos2) (hd1,msdos1) (hd1) when ...
0
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0answers
13 views

Is there a Relation be Uboot and UImage?

Can anyone explain me what is a UImage and how it is related to Uboot ?? I understand that UImage is the kernel Image.. But why it is so called and not a Image file..
0
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1answer
73 views

Ubuntu i386 installed with bad DDR2 2GB memory card

After great trial and error, I was able to successfully install the Desktop version of Ubuntu 14.10 i386 on my PC, which is an old DELL Pentium 4 OptiPlex 210L. It was a case where an installation ...
0
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2answers
26 views

Accessing exported gcode from Slic3r?

I've been using Ubuntu for about a month and am definitely a novice, apologies if this question is trivial. I use a program called Slic3r to create gcode (machine instructions) from stl files for 3D ...
1
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1answer
566 views

Problem with NIS configuration

I tried to configure NIS in a server and a client both running Ubuntu 14.04 following this guide and this official guide. After a reboot the client machine got locked with this message several times ...
2
votes
1answer
21 views

Can I make a boot drive with my desktop

I want to make a boot drive with all of the system files the same as the files on my desktop. I want to just plug it in and have it boot up with all my settings and files and everything running when I ...
1
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0answers
47 views

What would cause a system freeze from navigation to /proc?

This is really driving me crazy, if I pull up nautilus and navigate to /proc, my system will completely freeze up. The only way to get out seems to be to SysReq RSEINUB, but sometimes even that ...
0
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0answers
43 views

expanding filesystem

I`m totaly newb in Linux-like systems. Can u help me expand filesystem? Ubuntu server is hosted on Xen. I have some additional space in hypervisor but do not know how to do resize in the system. ...
0
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2answers
45 views

What is 'None' that shows up in the filesystem in Ubuntu 14.04.1 LTS?

$ df -h S.ficheros Tamaño Usados Disp Uso% Montado en /dev/sda5 36G 11G 23G 33% / none 4,0K 0 4,0K 0% /sys/fs/cgroup udev 1,5G 4,0K 1,5G 1% ...
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0answers
43 views

How to Confirm user group permissions in the current fuse user group

I have created a folder "mtp" in /Media and its /media/mtp. The basic property tells: Type:- Folder(inode/directory) and in Permissions it shows Owner and Group as root. It says you are not the ...
0
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2answers
49 views

tmp file in root folder with large size/ very long name

As the title, I have this file in root folder and I don't know what it is. Can I safely remove it? -rw------- 1 root root 925M lug 22 15:28 tmpTKb8nhN6ke4IJ bnWrrgcIz-iyhS8H5V ...
0
votes
1answer
56 views

Why are the MBR and GRUB present as files in the Linux filesystem?

A computer's master boot record consists of raw binary and does not reside on any sort of partition. Legacy GRUB and GRUB 2 are installed to the sectors inbetween the end of the MBR and the start of ...
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0answers
138 views

No mountable file systems on Macbook Pro

Downloaded 14.10 to install on a Macbook Pro. Then I get a message ubuntu-14.10-desktop. no mountable file systems
2
votes
1answer
34 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 ...
1
vote
2answers
30 views

Number pair prefix to config files

I have noticed some config files having a prefix. E.g. Inside my /etc/php5/cli/conf.d: 05-opcache.ini 10-pdo.ini 20-curl.ini ... Could someone explain this? I am thinking something along the ...
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2answers
66 views

Is there anyway to undo wipefs?

So I (very stupidly) performed a wipefs on my XFS formatted 4tb Linux (software) raid 5 array in trying to convert over to a bcache setup (I was following some instructions online and should have paid ...
0
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1answer
114 views

Cannot delete a folder

I have Segate backup + 1TB external HDD recently since 1 month i am unable to copy the files effectively sometimes the copying is 10 kb/s like that. and sometimes iam getting error like Input/output ...
0
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1answer
59 views

chown not working on remote filesystem, other commands (e.g., chmod) do work

I am trying to change the ownership of a file on a remote filesystem, but chown responds with chown: changing ownership of ‘foo’: No such file or directory However, as you can see, foo is there and ...
1
vote
1answer
132 views

File system went read only after adding ssh key

I followed this guide to set up ssh key on my digital ocean droplet, but since I made step 4 my file system went read-only. I changed /etc/ssh/sshd_config from PermitRootLogin yes to PermitRootLogin ...
0
votes
1answer
111 views

File creating permission Denied [duplicate]

I have removed Windows 7 and installed Unbuntu 14.04. I have successfully installed LAMP but the problem is that I cannot save a file with a PHP extension in local-server using the Bluefish editor . ...
0
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0answers
46 views

How to disable LVM for sda?

When I installed Ubuntu 14.04, I check use LVM option. I want to disable LVM for sda, but I don't want to wipe this disk. Is it possible?