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

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Mount - Problem Remounting /dev/sdb1

How can I properly remount /dev/sdb1? Because when I remount it: sudo mount -o remount,rw /dev/sdb1 mount: cannot remount /dev/sdb1 read-write, is write-protected ...displaying that it is write ...
2
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2answers
69 views

I need help mounting an lvm2 partition with 14.04 LTS live USB

SOLUTION: I was able to mount the partition and copy the files to another drive! sudo fuseext2 -o ro -o allow_other /dev/mapper/vg1-lg1 /mnt was the key. I still have not been able to access the ...
1
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1answer
71 views

Xampp htdocs folder , sub folders and all files permiossion

I am not familiar with Ubuntu , i copied my project folder in htdocs but when i open my project in browser it loads but styling files (css files) doesn't loads . Its permission problem . I have done a ...
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0answers
22 views

Is there a way to log rejected file access attempts in the Linux file system?

It often happens when you install a new program or when you just configure something, that you hit issues with the file system permissions because you don't have the folder/file permissions set ...
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2answers
44 views

Windows can view directories but not ubuntu

Ok. I know i messed up by hibernating one OS and working in other. As i remember i hibernated the Ubuntu. Now a lot of directories are not showing up in ubuntu. But shows up & works in Windows. ...
2
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2answers
27 views

Is there a way to backup and restore basic file / folder permissions on Ubuntu the way that there is using icacls in Windows?

In Windows you can do this (backup and restore basic file permissions) can this be done in Linux? And to clarify, by basic file permissions I don't mean ACLs in Linux, I mean the default permissions ...
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30 views

Is there a way to backup and restore ACL file and folder permissions on Ubuntu the way that there is using icacls in Windows?

In Windows you can do this (backup and restore ACL permissions) can you do this in Ubuntu? And to clarify, I mean ACLs in Linux, I do not mean the default permissions modified with chmod / chown. ...
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1answer
21 views

Where to put binary file?

I am packaging my own application into .deb. According to this, my compiled application should be installed in /opt/my-package. However, the tool Lintian reports such error: E: dir-or-file-in-opt ...
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40 views

Which subdirectories of / should have compression disabled in btrfs root filesystem?

Imagine you set up your root filesystem to be btrfs with Ubuntu 14.10 defaults (one subvolume for / and one for /home) and you want to compress and deduplicate as much as possible. Which directories ...
0
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1answer
57 views

df is omitting some whole parts of my fs / disks. Is there something wrong?

EDIT(2015-03-08): I think this behaviour is caused by ubuntu-sdk using schroot and overlayfs to install its dev kits. See ...
1
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1answer
32 views

I have a directory named -H and would like to change the name of it [duplicate]

I am taking a class at Pluralsight and made the mistake of typing 'express -H' as instructed. Now I have a dir named -H and Ubuntu will not let me access it or otherwise deal with it. I would like to ...
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28 views

Apparmor problems

I followed this persons solved question here on how to mount Apparmor: https://forum.backbox.org/general-support/apparmor-is-not-working/. After I did however, I came up with this black screen with ...
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18 views

Why are ext4 filesystems owned by root?

I formatted a flash drive to ext4 and created a new partition on my hard drive with fs type ext4. Both were owned by root and I had trouble writing files. Why does that happen? Also, if that has no ...
0
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2answers
61 views

Use of “cp” command between root user's home and plain root

How do I use the "cp" command to copy files from root@pcname:/home/username # to root@pcname:~ # I have been able to use the mv command to move a file, but when I use cp, it tells me that the ...
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0answers
32 views

Solved - Massive filesystem corruption after latest update on LUKS encrypted drive

I booted my machine this morning and was greeted by a busybox shell. I booted from a live USB, mounted the drive with cryptsetup, but when I try to open it it says my ubunutu--root-vg has an ...
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20 views

What is the IO Block property in stat command in ubuntu?

srimanth@srimanth-Inspiron-N5110:~$ stat /home/srimanth/Videos/Better\ Call\ Saul/Better.Call.Saul.S01E02.720p.HDTV.X264-DIMENSION.mkv File: ‘/home/srimanth/Videos/Better Call ...
0
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1answer
41 views

I want to move /run/shm to my /home directory

Filesystem Size Used Avail Use% Mounted on /dev/sda6 9.1G 8.4G 214M 98% / none 4.0K 0 4.0K 0% /sys/fs/cgroup udev 1.9G 8.0K 1.9G 1% /dev tmpfs ...
0
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1answer
112 views

Migrate root filesystem from btrfs to ext4

I want migrate a Ubuntu installation off of btrfs as root because it frequently hangs and causes out of space errors and I really don't need the snapshots. The partition was created empty and not ...
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0answers
22 views

How could I set a file overlay on my whole system?

I need to build and test system components on my Ubuntu laptop and I want to be sure that it won't damage (or replace any my current components) (I plan to build and test gtk, gstreamer and ...
0
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0answers
57 views

Stale file handle

i added new structure member for creator in ext2 inode structure at ext2.h, currently i downloaded linux-3.18.7 and modified and i enable the ext2_fs option in.config file, after compilation i entered ...
0
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1answer
18 views

Binding /var during installation

I want to install an SSD into my desktop PC, putting there the root and other folders like /etc. What I don't want to put there is /var, because I work with databases pretty often. So, what I want to ...
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0answers
194 views

Explanation of entries in dmesg log in Ubuntu Server 14.04

A few days ago I did a clean install of Ubuntu Server 14.04. Everything is working fine, but when my system boots I get these entries in dmesg log: [ 3.106082] EXT4-fs (dm-0): mounted filesystem ...
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0answers
39 views

Recover the directory structure of a lost LVM Logical volume?

I am aware of the huge amount of data recovery questions on this site, and reading all of them I think my case is unique enough to warrant a new question. how it came to be I set up a LVM with ...
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35 views

ubuntu file system memory allocation

While building ubuntu OS image from source how to allocate specific memory to specific folders of filesystem i.e. /home will get xx GB, /sbin will get xxy GB, /bin get yytt GB etc. Is there any ...
2
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1answer
46 views

Is it possible to prevent a file from being deleted unless in safe mode?

Is it possible to make a file only deletable when in safe mode on linux? Specifically I am using ubuntu 14.04 and I need to prevent a file from being deleted. If this solution is not possible is ...
0
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2answers
31 views

Help with restoring windows 7 boot from ubuntu grub

I just sold my old laptop on ebay and had Windows 7 and Ubuntu 14.04 installed on separate partitions on the same hd. When I restored factory settings to Windows 7 I deleted the partition that Ubuntu ...
-1
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1answer
35 views

how to extend root (/) partition by freeing ext4 partition? [duplicate]

My root (/) partition is full and i want to extend my root file system by freeing extra memory present in other partition which is ext4. How to free some space with ext4 allocation and how to extend ...
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0answers
52 views

Cannot create File system on HD

When I run this command: partprobe ; mkfs -t ext4 -q /dev/tbdata/mediashare I get this error: Error: /dev/mapper/tbdata-vmbox: unrecognised disk label Could not stat /dev/tbdata/mediashar --- No ...
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13 views

btrfs is full, but only half a disk is really used [duplicate]

I see this: root@wm-bot:/var/lib# du -ksh /var/lib/mysql/ 2.0G /var/lib/mysql/ root@wm-bot:/var/lib# root@wm-bot:/var/lib# df -h df: `/public/backups': Stale NFS file handle Filesystem ...
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1answer
182 views

Low disk Space in Root Filesystem Error

The system gives me the following error: The volume "Filesystem Root" has only 713.9 MB disk space remaining. You can free up disk space by removing unused programs or files, or moving files to ...
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0answers
33 views

Drive path not retained in softwear memory after reboot [duplicate]

Question rephrased to better fit my situation at the time of asking: After rebooting my computer; all memory of recent file use by software programmes accessing files upon my second hard disk, are ...
0
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1answer
35 views

Proper Linux filesystem from Ubuntu ISO file

It is known that one can install a Ubuntu iso file on a usb or hard drive, which itself yields the proper Linux filesystem which consists of folders: bin/ boot/ dev/ etc/ home/ lib/ media/ mnt/ opt/ ...
0
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1answer
29 views

Resizing filesystems

I have following filesystems on my Ubuntu 12.04: u@czarnobog:~$ df -hT Filesystem Type Size Used Avail Use% Mounted on /dev/mapper/md1-md1 ext4 31G 27G 2.7G 91% / udev ...
0
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1answer
116 views

Why the file has 0755, but 'Permission denied'?

Why the file has 0755, but I got an error 'Permission denied'? root@vagrant-ubuntu-trusty-64:~/.rbenv/versions/2.2.0/bin# ls -la total 14000 drwxr-xr-x 2 root root 4096 Feb 9 20:25 . drwxr-xr-x ...
0
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1answer
14 views

How do you Identify apps or procs that create large tmp files?

I am having problems when using GNS3 on a Win7 host running a VMware Workstation Ubuntu VM. Not sure what app or process is creating large 3+GB temp files filing up my drive. How can tell. Below is ...
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0answers
31 views

Change permissions of / of mounted disk

I've accidentally changed the permissions of /on my system, thus obviously nothing is working anymore now. I can access my server via a rescue system and mount the disk. How can I fix the ...
0
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1answer
49 views

How to get rid of more than one million ghostfiles?

I periodically run Bleachbit 1.0 on my Lubuntu machine (kernel 3.13.0-35-generic). Last time, I checked the option to wipe free disk space, mainly to try it. The program got stuck on a message saying ...
0
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1answer
69 views

How to remove disk lock [closed]

I have installed ubuntu 14:04 version, I already write the password on the disk. turns out it was too long for me, I want to disable it, how? I am a beginner, need an answer
0
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2answers
84 views

Unable to write to ext4, No space left on device?

After creating a folder in my ext4 partition, copying some data to it, then moving that whole folder to another drive, I became unable to add additional data to the ext4 partition when I boot into ...
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0answers
24 views

Missing Files-my “music” folder is lost

I am using 14.04 version of ubuntu,when I opened my files I found my music folder was missing.Clicking on it says somthing spelling error.I have not yet done partition i.e I have no drives,there all ...
0
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3answers
44 views

How to select a file without opening it?

This is probably a quite trivial question, but I cannot seem to find the answer on-line. I set my file browser to single click opening as it is easier to work with, but, since clicking opens the file ...
0
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1answer
50 views

how to automount sda2 partition

How do I mount sda2 from sda1? thufir@doge:~$ thufir@doge:~$ sudo parted -l Model: ATA ST500DM002-1BD14 (scsi) Disk /dev/sda: 500GB Sector size (logical/physical): 512B/4096B Partition Table: msdos ...
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0answers
37 views

Ways of resolve case conflict when moving files to a Dropbox folder

As documented here, Dropbox appends (Case Conflict) to a file moved in ubuntu to a dropbox folder already containing a file of the same name (ignoring case). I would like to set up alternative ways ...
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34 views

How do i change the mount point of a file system? is it safe?

My file system structure looks as follows Filesystem 1K-blocks Used Available Use% Mounted on /dev/mapper/vg_root-lv_root 38929872 36450548 503672 99% / tmpfs 4025936 ...
1
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1answer
33 views

Need help deleting a directory

I have a directory in my home directory (the one with My Documents, etc.) with a name that looks a bit like my username (random upper-lowercase alphabetical characters). It suddenly appeared Tuesday, ...
0
votes
1answer
42 views

How to check for any activity on a physical disk?

I have an SD card that's connected via a USB interface. The output of fdisk -l indicates the following: Disk /dev/sdb: 3965 MB, 3965190144 bytes I have a script that re-initializes multiple ...
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0answers
11 views

Is there a “session-wise” filesystem encryption?

AFAIK, there are partition encryption, or filesystem encryption like ecryptfs. But both of them only ask permission when mounting. By which I mean, once I mounted them, any other users could access ...
0
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1answer
25 views

Lost a desktop folder

I am pretty new to Linux and was trying to change the name of a desktop folder from Documents to Media when I got an error message about the pathway. I restarted the computer and lost the folder. I ...
0
votes
1answer
42 views

Can't alter/change access rights

I've downloaded some gopro footage to my local hd and then copied the files from my hd to an external drive. Whenever I want to change the access rights it will switch back to read only in Nautilus. ...
0
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1answer
59 views

Can't create files on desktop in Ubuntu 14.04

I accidentally created a desktop shortcut in my home directory. To remove it, I did sudo rm -rf Desktop Now I can't create files and folders on my desktop.