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

learn more… | top users | synonyms

0
votes
1answer
35 views

ubuntu 10.04 DHCP server upgraded and now severe problems

We have an Ubuntu server at work. It acts as a DHCP server for 5 machines connected to a private 172.x.x.x network for internet access. The machines netboot from an image on the server. I tried to ...
0
votes
1answer
32 views

File System and Mount Point

I am trying to install Ubuntu 13.04 alongside Windows 7. The Partition that Ubuntu picked up on and tried to install on, wasn't big enough. I created a new partition but I need the File System that ...
0
votes
1answer
29 views

Creating folders on an ext2 unjournaled drive

I'm currently trying to create a writeable folder on a ext2 drive. I took a usb drive and formatted it to ext3 using gparted. Then I went into terminal and wrote in sudo mkfs.ext2 -j -I 128 ...
0
votes
1answer
25 views

Repair file names

How can I repair filenames that contains characters that looks like rectangulars with some numbers in it. (Translated from german umlauts) There is a tool like convmv, but I don't know what ...
0
votes
1answer
206 views

Getting file system free space

This isn't a problem as such, more a request for information based on ignorance of the Linux filesystem. The very short question is: How do I find out how much free and used space there is on the ...
0
votes
1answer
51 views

problem with 13.04 migration to 13.10

System hung while attempting to update from 13.04 to 13.10. When I attempt to reboot I receive the following message: # Filesystem check or mount failure. # A maintenance shell will now be started. # ...
0
votes
1answer
94 views

“unknown file system. Grub rescue” won't let me access to BIOS

So I installed Ubutu 13.04 alongside Windows 8 and after a week or so it stopped working and I couldn't figure out how to recover. I went back to windows for a little while and downloaded Ubuntu 12.04 ...
0
votes
1answer
83 views

How to use Ubuntu with read-only file system?

The question is: what directories of file system I should consider to be mounted as ro (as maximum as possible), and what as rw to use Ubuntu as normal? I want to flash as maximum directories as I can ...
0
votes
1answer
39 views

Automatically regenerated .fuse_hidden928347928374 files when I try to delete my own

I have an NTFS volume mounted under linux, and periodically, after I've deleted a file of my own, a clone of it will appear in the directory where the actual file was. I can usually delete this file, ...
0
votes
1answer
238 views

Use IOzone to check read/write performance of ext4 and btrfs?

Can someone help me to use IOzone filesystem benchmark tool on Ubuntu to check the performance of ext4 and btrfs filesystems? I have installed Ubuntu into a VM.
0
votes
1answer
136 views

Reducing the size of udev filesystem

I have this line in the output of df -h: udev 16G 4.0K 16G 1% /dev What is this thing doing? Do I need it, and if not, how can I reduce the size of it? As far as I know, this ...
0
votes
1answer
426 views

Slow MicroSD card

I've recently bought a 64GB MicroSD class10 card. Now according to Wikipedia, it should be able to transfer files at a rate of max 10MB/s. But I am only reaching 6.7MB/s (two-third of the promised ...
0
votes
1answer
25 views

Bug in Krusader lost directory subtree. How to recover the files?

Using Krusader version 2.4.0-beta1 (thanks Canonical for using me as ginnea pig without my knowledge), I renamed two directories to replace the spaces in the names with underscores. Unfortunately, ...
0
votes
1answer
214 views

Portable Installation on ext2 Flash Drive Won't Boot

I've been running Ubuntu from my flash drive for a while now, but due to the frequent read/write feature of the journaling system, it was excessively slow. I read about how it might be this slow ...
0
votes
1answer
352 views

How to mount EXT4 drives from another system

I had a testbed 13.04 server which had a boot volume partitioned into three, root, swap and Workspace as well as two other drives running in raid 1. The Workspace and raid volumes were setup using LVM ...
0
votes
1answer
1k views

Mount disc Xfs filesystem

How can I mount a disc with a xfs file system? I'm using sudo mount /dev/sdc2 /media/mntiomega i receive the error: you must specify the filesystem
0
votes
1answer
98 views

Resizing Partions with GParted

So here's the situation: After installing Ubuntu 12.04 LTS, Running df -h gives me the following partitions: /dev/loop0 , 29G, 9.3G, 19G, 33%, / udev, 1.9G, 4.0K, 1.9G, 1%, ...
0
votes
1answer
2k views

How do I make a read-only file system writable for pendrive

When I am trying to format my pendrive, I'm getting the following error. root@obbu-G41M-Combo:/home/obbu# mkfs.vfat -n 'Ubuntu' -I /dev/sdb1 mkfs.vfat 3.0.14 (23 Jan 2023) mkfs.vfat: unable to open ...
0
votes
1answer
53 views

regarding file copying in ubuntu 12.04

i have to replace my hard disk drive (not a usb type HDD, 500gb) so i have backed up content to some other hardisk (not a usb HDD, 80gb). Then i brought a new HDD also installed ubuntu 12.04 & ...
0
votes
1answer
58 views

How to create a directory in “/”

I'm trying to build my own linux distro using "linux from scratch" project. In order to do so I need to access different features, On my development process I went through many troubles in Ubuntu One ...
0
votes
1answer
96 views

How to remove duplicated directory?

I have two directory with same name of "Unread". ls -l drwx------ 1 vg vg 200 Aug 4 21:57 Unread drwx------ 1 vg vg 200 Aug 4 21:57 Unread when I rm/mv the directory named "Unread", one ...
0
votes
1answer
184 views

HDD and SSD configuration

I had just bought a system76 laptop that is preinstalled with Ubuntu 13.04, and has a nice SSD and HDD setup. The problem is that the laptop's hdd comes unpartioned and unformatted, while the entire ...
0
votes
1answer
158 views

How to disable disk lock?

I am a new Ubuntu user and have recently installed Ubuntu 12.04 to my computer. Now every time I turn on the computer it keeps asking me to introduce a password for the Disk Lock or something before ...
0
votes
1answer
86 views

“Ownerless” (no permission) SSD-friendly filesystem

A bit of context and needs: Most time I'm using Ubuntu machines. I have a laptop which I do not carry around a lot, so I'm in usermode (no admin permissions) lots of time. I have a large and fast ...
0
votes
1answer
145 views

How can I remove this file?

I'm using an Apple Timecapsule mounted via gvfs-mount (I tried cifs too) which contains a file named Capitoli 3:5.odt I definitely want to remove that but I had no luck. From ubuntu the most i ...
0
votes
1answer
383 views

How to know where plugged device was mounted?

For example I have 3G modem. When I plug it in USB port it becomes /dev/ttyACM0. How can I see if device is really connected at all, what proper commands to see listings of connected devices (not ...
0
votes
1answer
229 views

How to set password for hdd partition mounting

I am using Ubuntu 13.04 x86_64. I have one extra ext4 partition of 90 GB beside my / partition. I want to ask the user to enter a password whenever he/she tries to mount that extra partition by say ...
0
votes
1answer
154 views

Error: Unknown Filesystem HELP!

Ok, I am new to Ubuntu and know almost no terminology and don't know a whole lot about computers. So I wanted to install ubuntu so i burned it onto a flashdrive and when I tried booting it I got, ...
0
votes
1answer
168 views

Hard drive location keeps changing after upgrade to 13.04

After I upgraded to 13.04 the hard drive media location keeps changing. These are installed hard drives not removable media. This issue does not seem to affect usability via the file managers ...
0
votes
1answer
69 views

My harddisk is facing problems

How do I image the disk and copy it to new disk to avoid reinstalling Ubuntu and Windows 8. Are there any special steps; since I am dealing with a dual boot windows 8 and I am replacing one of two ...
0
votes
1answer
136 views

Did not found root folder browser after upgrading to latest

Today I have upgrade my system with ubuntu 13.04 . But I Did not found the root file system . Please help me how do I access the files , a lot of files are in /opt folder . Thanks Biplab
0
votes
1answer
370 views

Unable to transfer files from laptop to USB due to permission error

I am unable to transfer file from my system with Ubuntu 11.10 OS to a USB drivee (Hp 16GB). When I copy files from system and try to paste in USB the paste option gets disable. But the reverse is ...
0
votes
1answer
75 views

Where can I find what filesystem lvm2 uses/

After a default installation of Xubuntu (12.10) on a SSD card, I now have the following set up: A SATA disk: /dev/sda1 --> extended /dev/sda5 --> ext4 (mount point: /media/mark/ A SSD disk: ...
0
votes
1answer
47 views

How to remove file logicaly?

I have a file on my computer which was called just one.flv , I deleted this file but the problem here is that the icon of the file still appeared and when I try to do any operation on it from terminal ...
0
votes
1answer
229 views

fsck on ext4 resulted in file corruption

I had to hard reboot my machine and I had a file system corruption. I have tried to run fsck on the partition from live CD. However my partition is ext4 and I understand that fsck defaults to ext2 ...
0
votes
1answer
270 views

read-only file system after crash

I really don't have any idea of how to manage Ubuntu with the console. I am new in all this stuff, and I don't speak english a lot. My system crashed, and it doesn't let me do anthing. It stays in ...
0
votes
1answer
32 views

Restore files lost from adduser

I have a web server set up using the www directory with a whole bunch of files that have not received their monthly backup. I've done a ton of work so I'd like to not restart. I then set up an e-mail ...
0
votes
1answer
416 views

System went into read only mode

I am newbie in Ubuntu. We have a cloud server in Rackspace with following configuration: OS - Linux version 2.6.35.4-rscloud (root@builder.slicehost.com) (gcc version 4.4.3 (Ubuntu 4.4.3-4ubuntu5) ) ...
0
votes
1answer
112 views

How to give priority to auto-mount on boot in Ubuntu 12.10?

One of those things that I like in Ubuntu 12.10, is that for some reason my ntfs partition is automatically mounted on boot, without having to use some application like ntfs-config. However, it's not ...
0
votes
1answer
209 views

sudo doesn't work on ro filesystems

When for whatever reason my home partitions gets mounted read-only, sudo fails: /usr/bin/sudo: Input/output error From what I understand, it seems to be trying to touch ~/.sudo_as_admin_successful ...
0
votes
1answer
7k views

Mount USB drive with write permissions for everyone or specific user

I know there are similar questions but I get some specific problem I can't overcome. I have: HDD split into two partitions. /dev/sdb1 and /dev/sdb2. sdb1 is NTFS and I don't need it. I need sdb2 ...
0
votes
1answer
214 views

RAID (mdadm) - File system relevant prior to building the array?

In the event I want to set up a RAID 1 mirror utilizing mdadm, is it needed to have a file system on the drives first? Reason I ask is my desktop which has RAID 1 (built from the alternate install CD) ...
0
votes
1answer
660 views

Unable to Mount Location Can't mount file

I am new to ubuntu. I installed ubuntu 12.10 and then at the installation process defined the partition and mount parameters. e.g. /dev/sda1 /dev/sda2 /dev/sda3 so on... But after the ...
0
votes
1answer
567 views

java exception: No such file or directory

I am trying to run a GATE application via jetty web application server in Ubuntu. I am getting java.io.IOException: error=2, No such file or directory because of a particular GATE plugin ...
0
votes
1answer
122 views

Copy entire filesystem in a folder where a raid-1 array is mounted

I am trying to migrate from a single disk drive system to a double disk drive software raid-1 system that already has a running system on it. Meaning that formatting and having a new installation of ...
0
votes
1answer
405 views

Cant mount cryptswap1 ?

From the reading I've done, it seems it's having issues mounting the encrypted files. The guys here: could not mount /dev/mapper/cryptswap1 Seem to be suggesting how to fix it, but I am new to Linux ...
0
votes
1answer
245 views

How to check for missing files in filesystem or directory with bash (after crash)?

After the system unmounted the root partition, I detected that some files are missing in the filesystem. wifi and the gwibber icons disappeared from the indicator applet I am trying to check if ...
0
votes
1answer
927 views

Can you apply noatime on Ext3 partitions at realtime?

an application accesses a disk directory containing about 3 million files (including directories). I would like to apply the noatime option for that filesystem and I would like to know whether I can ...
0
votes
1answer
445 views

Can't Install - grub probe: error: unknown filesystem — Help?

I can't install Ubuntu on my computer, I'm using a 12.04 LTS LiveCD. I have 2 empty hard drives (500 GB each) and no other operating system's installed. The installer always seems to be stuck at the ...
0
votes
1answer
2k views

Ubuntu 12.04.1 LTS USB not being detected after formatting with Startup Disk Creator

sudo fdisk -l lists the drive, however, I cannot find it in the file explorer. Disk /dev/sda: 250.1 GB, 250059350016 bytes 255 heads, 63 sectors/track, 30401 cylinders, total 488397168 sectors Units ...