Linux refers to the family of Unix-like computer operating systems using the Linux kernel. If your question is about a certain distribution only, use a more specific tag.

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Trouble negotiating rsync protocol versions

I am trying to rsync between a Linux box and a MacOS box. The MacOS (yosemite) seems to come with an old version of rsync so I've updated that using homebrew. OK, I seem to have perfectly matching ...
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12 views

DDRescue locks system up on disk clone

I have ddrescue running on the latest version of Fedora trying to clone a dying IDE disk. When I run ddrescue --no-split /dev/sdb imagefile logfile the copy will happen then the entire system will ...
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2answers
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Why must I use sudo for ssh public key authentication to work?

I cannot ssh from my computer (OS X) to my raspberry pi (ubuntu mate), unless I use sudo. I am using a public/private keypair to authenticate. The appropriate public key is added to the ...
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5answers
25k views

No /mnt/hgfs in Ubuntu guest under VMWare Fusion

I just installed Ubuntu 13.04 inside of VMware Fusion Pro 5. I have the virtual machine configured for read-only sharing of my home directory, but there's no /mnt/hgfs directory and there's no ...
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1answer
21 views

GUI terminated with return code 4

i am getting the below error . Could you please help me resolve this Invocation target exception: Can't connect to X11 window server using 'dummy0:1.0' as the value of the DISPLAY variable; you ...
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1answer
20 views

Using nonstandard formats with a USB floppy drive?

I was given a USB floppy drive, and it works beautifully. Linux Mint detects it as a Mitsumi FDD 061M, although the case and packaging are no-brand. (Counterfeit?) It realiably reads and writes 1.44MB ...
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2answers
36 views

SSH to access remote screen without X

I need to access a remote computer (which is attached to a screen), using SSH - the problem is that the programs I start via SSH need to be shown on the remote screen (tail, htop, slurm, ...) The ...
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2answers
8k views

Why doesn't my cron.d per minute job run?

I have thrown a bunch of darts trying to get a python script of mine to execute every minute. So I thought I'd simplify it to just do the "simplest thing that could could possibly work" once per ...
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1answer
14 views

Remove PostgreSQL database files

I've uninstalled PostgreSQL some time ago, but now I needed it again, and installed it. When running rcpostgresql I get the following: /usr/sbin/rcpostgresql Your database files were created by ...
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3answers
5k views

Ubuntu box keeps dropping wired network connection

good morning all. Odd one for you... I have an Ubuntu box, 11.04 x64, running on a Dual Opteron SFF box (iWill ZMaxDP... pretty old machine). Up until a few weeks ago, it was acting as a Windows ...
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4answers
182 views

Is there any in-built Linux command to display the contents of a directory in real-time?

Is there any in-built Linux command to display the contents of a directory in real-time?Similar to the "tail -f file_name" command which displays the contents of a file in real-time.
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Virtual Boxes, Linux hosts, Windows guests, Shared folders and Recycle bins

Basically what I am looking for is a way for sharing folders between my Debian Jessie host and Windows 7 guest without the fear that I accidentally delete files under Windows and have no (convenient) ...
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5answers
71k views

How to access a BitLocker-encrypted drive in Linux?

I have a laptop running Windows 7 Ultimate. I have encrypted my drives using BitLocker. Now I have also installed Lubuntu along with Windows. But my encrypted drives are not visible in Linux. How ...
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1answer
68 views

FTP with TLS doesn't work, nor can I change port in pure-ftpd

I have been having problems with my ftp server that I have tried fixing for over a week now. My configuration: I am running Raspbian on a Raspberry Pi. My ftp server is pure-ftpd, and I'm running ...
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2answers
27 views

How can I list the contents of an lrzip file without extracting from the Linux terminal?

How can I list the contents of a lrzip file created via lrztar without extracting it?
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3answers
25 views

How can I use the output of ls/grep as input for pdfunite

I want to use pdfunite to merge several pdf-files into one output file. Since the directory contains lots of different stuff, I thought i could use ls/grep to get the apropriate file-names and then ...
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0answers
6 views

Apache Spark Building Memory Issue for JVM Initialization

I am currently building Spark on my linux Red Hat 5 VM just for experiment. However, when running the mvn script or sbt script inside the spark 1.3 version source code (downloaded from the github), it ...
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2answers
16 views

Nuke thumbdrive and set GPT+Partition

After using my 16GB USB2.0 thumbdrive as an ESXi boot stick I am now unable to format it. Windows Explorer would just say: The drive could not be formatted (or something likewise) Diskpart is ...
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2answers
24 views

How to access a web interface on my NAS backup unit which is on our server's internal network

I hope anyone can help me with this The setup: We have a few hosting servers. There are webpages of our clients. We also have a backup unit with web-based control interface. The backup unit is not on ...
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4answers
3k views

What used the linux memory? Low cache, low buffer, not a VM

First of all, yes, I have read LinuxAteMyRAM, which doesn't explain my situation. # free -tm total used free shared buffers cached Mem: 48149 43948 ...
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1answer
64 views

How do I install the 32-bit runtime linker on 64-bit NixOS?

I need that to use mksdcard from the Android SDK. Currently, when I run that executable, the system reports "No such file or directory". For Debian derivatives, one can install ia32-libs: ...
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2answers
30 views

`sudo adduser username admin` leads to `adduser: The group `admin' does not exist.`

I'm trying to add a user to the sudoers file with the simple command sudo adduser username admin but I get adduser: The group 'admin' does not exist. So I checked out the sudoers file (sudo visudo ...
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3answers
53 views

SSH broken pipe kills foreground process

I have 2 hosts that I can connect them through SSH. In one host, after a while, I get the error Write Failed: broken pipe. In the other host, I don't get this error. I don't understand why in one ...
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0answers
26 views

USB 3.0 Trouble

I am using a WD Elements Portable 1TB USB 3.0 2.5" disk bought in May 2014 to backup data of my desktop machine. rsync runs smoothly without any error messages. However upon restoring data from the ...
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1answer
16 views

How to switch between command-line and GUI in VM on a Mac?

I have installed CentOS 7.1 in VMware Fusion of my Mac. I logged into the terminal (default runlevel 3) and started the GUI using the command "startx". I want to switch back to the terminal. ...
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8 views

VMware host-only network accessing host local resources

I have a Debian server (LDAP,DNS,DHCP and SAMBA services) in a VMware virtual machine and I would like to reach the host local printer with it. The first interface eth0 is a host-only network with the ...
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2answers
7k views

xauth not creating .Xauthority file

When I ssh into a headless Linux Mint 17 system, it doesn't create update / create an .Xauthority file. Moreover, when I run xauth I get the reply: marty@N40L ~ $ xauth xauth: file ...
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4answers
15k views

Loop pictures from a folder and display fullscreen slideshow

Need a Linux solution for looped slideshow from pictures in some folder. Pictures may be deleted and added, so it's a bonus if it doesn't stop/crash if currently shown picture is deleted.
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2answers
14k views

How to detect FireWire interface and Connected device on it, in Ubuntu 11.04?

I have a FireWire camera LifeSize connected to my PC in the FireWire interface. My PC has miniPCI slot and with external converter its having a FireWire interface. Now its Ubuntu who is not showing me ...
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0answers
9 views

3D printer with Arduino 2560 on Linux: Printer software can not find the printer

I am trying to setup the software for a 3D printer (Delta printer connected via an Arduino 2560) on Linux. The system works with RepetierHost and RepetierServer on Windows 7. I have tried ...
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4answers
5k views

How can I compress a file on Linux in-place, without using additional disk space?

I've got a 100GB drive that has a 95GB file. I need to free up some space on the drive (and right now transferring the file off the drive is not an option). The file would compress well with gzip or ...
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2answers
866 views

Is the version of the linux kernel listed in the source some where?

If I'm looking at a version of the linux kernel source code, can I tell which version of the kernel it is? This is code that's currently not running on any platform (so I can't execute commands), ...
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1answer
2k views

Recursive filesystem notifications (inotify) for Ubuntu Karmic Koala

I need a program which generates events when a file is moved, removed or its extended attributes are changed. I'm running Ubuntu Karmic Koala 32-bit desktop. inotify is the standard solution for such ...
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1answer
22 views

What does it mean when a system boots into initramfs?

I copied kali Linux 32 bit onto a USB stick using Win32Diskimager and Universal USB Installer. On a Lenovo X200 it boots withoug problems. Both methods. (P8400, 8 GB RAM, HDD) Then I tried to boot ...
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26 views

Ubuntu 14.04 LTS corrupt microSD - manual recovery?

i have a corrupt microSD card from a colleague. He asked me to save his data if possible. I use a recent usb-multi-cardreader. The microSD is a high capacity card with 32gb of space. I suspect it to ...
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2answers
31 views

iptables directing traffic through vpn

Networking newbie. I have two interfaces on the host: eth0 and tun0 from my OpenVPN client. The IP addresses are: eth0 192.168.1.22 tun0 10.1.0.8 Question 1 For outgoing traffic by changing ...
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0answers
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Recovering data on 20TB RAID 5 NAS, overwritten by 500gb RAID 1

I have a Linux gateway with 2 500gb drives in software RAID 1 for system. /dev/sda = RAID 1 /dev/sdb = RAID 1 /dev/sdc = RAID 5 (NAS 12 drives iSCSI, /home directories) While replacing sdb, weird ...
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2answers
726 views

Differences of aufs, unionfs and overlayfs from each other

I have to join two file systems, one read-only (squashfs) and one read-write (ext4). My plan is to mount the read-write filesystem over the read-only flesystem so it appears writable. When I make some ...
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1answer
4k views

How to autostart OpenVPN (client) on Ubuntu 12.04 CLI?

I have an *.ovpn file that works if I type in: sudo openvpn filename.ovpn. Now I would like to start up OpenVPN when I boot the computer. It's a headless version of Ubuntu 12.04 64-bit if that ...
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1answer
19 views

rsync doesn't copy file with different attributes but same modification time

I am using rsync to take a backup. This is my command line: sudo rsync -avuh --delete --stats --log-file=$LOGFILE --exclude-from $EXCLUDE $SOURCE $DEST This works for the most part. However, today, ...
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1answer
22 views

Linux command/script to find all files in a directory with a 4 digit number <= a specific number

I have a folder containing several other folders, each named in this format: Company XYZ (1999 OneWordDescription) I'm trying to filter out the ones that are marked 1995 or older, so I can move ...
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1answer
34 views

In what order does GNU env print environment variables?

When invoked without arguments, the env and printenv commands from the GNU Coreutils print the value of every environment variable. What determines the order in which these variables are printed? ...
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2answers
53 views

ZFS send/recieve over ssh on linux without allowing root login

I wish to replicate the file system storage/photos from source to destination without enabling ssh login as root. I've tried a number of different combinations such as: sudo zfs send -R ...
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1answer
24 views

What does qsub --cwd `pwd` mean?

I am newbie to Linux command lines. I just got a queue submission command from others. The command line is as follows: qsub --cwd `pwd` -t 60 -n 1 --proccount 1 --mode c1 --env ...
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1answer
14 views

4 browsers instances autoconfigured to 4 monitors on logon Debian

This might be wishful thinking... but stranger things have been found on the beach. I have a Debian system with KDE desktop and a NVidia GeForce GTX750 running 4 monitors. I want a new browser ...
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1answer
16 views

Plot the data collected by sar in ASCII

isag in an "Interactive System Activity Grapher" that "displays the system activity data stored in a binary data file by a previous sar". How do I view the data stored by sar in ASCII on a Linux ...
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4answers
5k views

CentOS installing jre/jdk error

[root@jony source]# sh run.sh Error occurred during initialization of VM Could not reserve enough space for object heap Error: Could not create the Java Virtual Machine. Error: A fatal exception has ...
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0answers
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Linux: USB Device Constantly Disconnecting/Reconnecting

I'm getting a lot of log spam about a USB device constantly connecting/disconnecting. It's my USB for my UPS, attached to my Dell PowerEdge server, but I'm not sure why it keeps getting kicked ...
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1answer
3k views

integrated intel graphics 3D acceleration probem with Linux on ThinkPad S531

I have a Lenovo ThinkPad S531 running OpenSuse 12.3 64bit. This notebook has the following graphics cards: - integrated Intel HD 4000 - discrete (muxless) AMD Radeon HD 8670M After the standard ...
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1answer
808 views

Set default editor for crontab -e invoked with sudo

I'm using Bash on Debian Squeeze. I just read this topic: change default text editor for crontab to vim I have exported both variables VISUAL and EDITOR to vim for normal user and for root. And this ...