A virtual machine (VM) is a guest Operating System running in a completely isolated environment within a normal host operating system. Modern virtual machines are implemented with either software emulation or hardware virtualization or (in most cases) both together.
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Upgrading Debian Squeeze to Wheezy - Should updatedb.conf be kept or replaced?
A similar question to Upgrading Debian Squeeze To Wheezy - Should conf' files be kept or replaced?, but in my case it concerns a different conf file and I am not on Linode.
I am upgrading a VMWare ...
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1answer
43 views
NFS server on qemu guest
I need to know how I can mount block devices, placed on a qemu guest system, from host. So in this case we have NFS server placed on guest system and NFS client on the host's side.
There are a lot ...
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0answers
21 views
How do I setup DNS names and static IPs for an Ubuntu virtualbox? [migrated]
I have Ubuntu installed on VirtualBox, on top of a Windows 8 host. How can I setup a static IP and DNS name for this virtual machine that other virtual machines will see?
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2answers
74 views
Do I need acpid in a virtual machine?
I'm always wondering if power management facilities in a virtual machine is necessary?
i.e acpid.
And I'm not sure if they still function in a virtual machine.
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0answers
19 views
Can I run hostapd in a virtual machine hosted in a windows system?
I would like to know if it is possible to run any linux/unix distribution with hostapd in a virtualized environment.
My idea is to host a small virtual machine, which will use my Windows Host ...
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2answers
60 views
Can I have a bridged interface without an IP?
I have 2 NICs: eth0 & eth1 on a host OS which runs some VMs (LXC) under it.
The hosts eth0 is connected to a private network and configured as the primary interface.
The hosts eth1 is connected ...
2
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1answer
128 views
How to get past “Loading Initial Ramdisk” hang after going from x86_64 to i686 cpu
Long story short, I have a Ubuntu 12.04 64-Bit Server setup as a virtual machine with VirtualBox (4.1.18). I migrated the guest machine from an AMD chipset (a gaming machine) to an Intel Xeon (server ...
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3answers
56 views
Linux / JVM - OutOfMemoryError: unable to create new native thread
I have a memory problem with a Linux server (CentOS). It is a VM. Below is the context.
It has 70Gb of RAM. There are 2 tomcat running on it.
One tomcat is given a heap of 13Gb and the other one a ...
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1answer
85 views
Fedora 18 Live CD is hanging on boot
When I boot up Fedora 18 (Fedora-18-x86_64-Live-Desktop.iso) in a Virtual Machine, I just get this screen:
I've verified the SHA sum, and I've tried starting it up in "basic graphics mode", yet I ...
2
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2answers
71 views
Install the same 64-bit packages as a 32-bit Xubuntu installation
I have been using a virtual machine (Xubuntu 12.10, with VMWare on a windows host) for all my programming work, which I am trying to transition from a 32-bit install to a 64-bit install. I am hoping ...
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0answers
60 views
Network in LXC not forwading through a bridge
I've got an LXC container, on the host I've got a bridge between the LXC container and eth0.
The LXC container can ping it's Host 10.1.0.5, but can't ping the gateway of 10.1.0.2. The host is able to ...
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2answers
98 views
Install Arch Linux to external hard disk using a Virtual Machine?
I have an external hard disk and I want to install Arch Linux on it. Since I'm a complete beginner I want to have access to the online the documentation. As the title states, it is possible to install ...
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3answers
96 views
Can I install ubuntu on a Virtualbox image and use it anywhere?
I am wondering if I install ubuntu once on a virtual machine running inside virtualbox, could I then use it as a portable OS and launch it from virtualbox on any machine? Or would I have to match the ...
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0answers
77 views
Unable to install Parallels Workstation Extreme 6 on Linux Mint 14 KDE
I just installed Linuxmint 14 KDE 64bit on my pc, and tried to install Parallels Workstation Extreme 6, but for some reason it showed errors and wasnt working.
I did some googling and found someone ...
2
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1answer
192 views
Everything works except Fedora
I'm taking an Operating Systems class online for college. It requires us to have a copy of Fedora 13, provided by our instructor, running on a virtual machine. On my machine, it boots to a message ...
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0answers
170 views
Sending Emails from bash script in Solaris VM
I am trying to send emails using the following bash script:
/bin/mail -s "#subject" "$emailto" < "$message"
It works fine on my local machine but does not work on my VM.
I looked it up and read ...
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1answer
134 views
how to send CTRL-ALT-Fn to virtual box guest Linux?
This should be a simple question:
Host OS: Arch Linux
Guest OS: Arch Linux (GNOME)
How can I send Ctrl+Alt+F1 to my Guest Linux OS?
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2answers
464 views
Why does dhclient fail with my ISP's DHCP server on a virtual interface?
Recently I switched from a T1 to a residential cable service (Comcast). I have a virtual machine (XenServer 5.6) running Debian 6.0.6 that is acting as the default gateway for my home network, but for ...
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1answer
816 views
Guide to installing Xen on CentOS 5.9 (That is still valid)
I need an idiots guide to installing Xen Hypervisor on CentOS 5.9
We attempted to install it on 6.3 before, but completely failed, so we reverted to 5.9 to see if we had more luck. We had issues ...
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1answer
68 views
How to use a backup in OpenVZ
I have a backup (.tgz file) that is an openvz virtual machine. i followed this article and i setup an openvz container but how i will use my backup file?
EDIT:
i found the tool ovz-web-panel (i am ...
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0answers
350 views
Problem getting Fedora to run in VirtualBox
I'm using Ubuntu 12.04 64-bit, trying to get Fedora 18 64-bit to run in the Oracle VM VirtualBox.
I've got VirtualBox installed (via the .deb package available from the official site,) and I got the ...
3
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1answer
96 views
How to enlarge existing file to specific size
I have hdd.img file, which I user as HDD for my virtual machine, but it's size is too small, how can I enlarge it?
There is one method, something like:
dd if=/dev/zero ds=10GB count=8 >> ...
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2answers
56 views
Create a CentOS Guest img over Ubuntu
I want to create a basic CentOS 5.8 system from scratch.
for now i build my own img for Ubuntu Guest (debootstrap), my host is a Ubuntu 12.04.1LTS but I don't know how to make for a CentOS, is ...
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1answer
334 views
“client denied by server configuration” with “AllowOverride All”
I've installed CentOS 6.3 with Apache 2.2 on a VM. I'm trying to set up a LAMP stack with these VirtualHosts:
localhost loads the path /var/www/html/
lcl.mydomain.com loads the path ...
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2answers
138 views
disabling ssh session expiration
I am installed Ubuntu on Virtual Box, and use xshell (a remote terminal application) to ssh to ubuntu. when I hibernate computer during night, after powering it on, the session is expired and I should ...
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1answer
207 views
How to install FTP server on Red Hat VM?
I have a windows machine and I need to transfer files from my machine to another Linux virtual machine which I have created.
How do I install a FTP server on those VM's to transfer files via FTP ...
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2answers
207 views
Linux guest VM on mac host - Keyboard
I use a Mac as a development box, but am slowly transitioning to Linux. So I am spending the majority of my time in the Linux guest VM while working. But I still spend a fair amount of time in Mac ...
2
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3answers
424 views
How to access a KVM virtual-machine?
I've created a KVM VM using virt-install. There is an image file in the directory /ssd/kvms.
How do I access the virtual machine and turn it on? Do I need to assign an IP address, and if so, how do I ...
2
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0answers
615 views
PCI passthrough with Xen
I am trying to run Windows XP in a Xen DomU virtual machine with a PCIe device, for which there are no Linux drivers, being passed through from a Debian Squeeze Dom0. My hardware supports ...
2
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1answer
561 views
VBoxManage: Error: Can't be used as the requested device
I used the soluton from this thread but always i get
VirtualBox error: The medium 'lvol.vmdk' can't be used as the requested device type (0x80004005)
I've tried all controllers SATA, SCSI, IDE and ...
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0answers
143 views
not all initrd.img's are born equal?
I am trying to get a Red Hat 5.8 box booting via pxe. The box is a virtual machine on ESX5.0 it has a Paravirtual SCSI Controller and VMXNET3 network driver. Now these drivers do not come default in ...
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1answer
1k views
What is the difference between virbr# and vnet#?
I am running KVM on RHEL6, and I have created several virtual machines in it. Issuing ifconfig command to the host system command line shows a list of virbr0, virbr1... and vnet0, vnet2... Are they ...
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2answers
676 views
Why doesn't eth0 get an ip address when set up in a bridge?
I'm trying to understand how dhcp for IPv4 is used with bridging.
eth0 is configured to be in br0. This is working just fine but only br0 gets a dhcp lease, while eth0 doesn't. Both are configured ...
5
votes
2answers
6k views
File permission issues with shared folders under Virtual Box (Ubuntu Guest, Windows Host)
I am using Ubuntu on Virtual Box and I have a folder which is shared between the host (Windows) and the VM (Ubuntu). When I open any file in the share folder in Ubuntu, I can not change it as its ...
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1answer
132 views
How to get the cloned guest connected to the Internet?
I made a clone of a VM(running a version of Centos 6) on KVM, but the clone wouldn't connect to the Internet. Issuing ifconfig shows no interfaces but the lo. Interestingly, the original system can ...
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1answer
86 views
How to boot a system in a second HD but runing the system in another one?
I have two computers, but the old one is not working well. So I'd like to install the old hard disk on the new computer.
I know how to do this and I know how to access the data from sdb. But I have ...
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0answers
163 views
Connect to a VPN from a Linux Virtual Machine
I am running an Ubuntu distro inside a VMWare virtual machine with a bridged connection on a Windows 7 host. What I am trying to do is to have the virtual machine connect to a VPN, but I'm not having ...
2
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1answer
580 views
Fastest remote X from Windows
I have the following set up:
|-----------------| |---------------|
| Windows | LAN (or VPN) | Linux box |
| (local machine) | ...
3
votes
1answer
345 views
How to force Debian to wait for DHCP
I am running Debian squeeze in a virtual machine (VirtualBox). The machine has two interfaces:
eth0 in "Host-only" mode so that the machine is accessible from the outside; and
eth1 in "NAT" mode so ...
3
votes
1answer
273 views
Does quiesce exist for Linux?
Quiescing a file system allows you to make a backup of the database while it is still running and other programs and their data as well.
The application generally needs to be notified of the quiesce ...
2
votes
1answer
178 views
Make box only communicate on lan only?
I am running a VM with Debian as the guest OS (I can choose another distro). It has nginx running along with some other software.
Some of the software tries to make outgoing connections (for example ...
8
votes
3answers
328 views
Physically break into box? (Memory & disk)
I have a VPS. I might be able to encrypt my partition but I havent tried. My VPS company I believe can reset my root password although the only SSH key I see is my own. With all my data I have it ...
0
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1answer
218 views
Can I setup a local webserver using ArchLinux and VirtualBox
I intend to create a local webserver using ArchLinux and VirtualBox for testing purposes.
I just wonder if Arch Linux has what it takes to create a fully functional webserver?
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vote
1answer
756 views
Getting config error for yum in CentOS
I'm very new to linux, and I am using CentOS in a VM for program testing. Everything seems to be fine, except for every few minutes I get this error:
Error Type: <class 'yum.Errors.ConfigError'>
...
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1answer
88 views
How to setup backup if the filesystem is read only
My remote server file system is read-only & its because my hard disk is broken .I want to take backup for taking any further action.
Is it possible to setup a manual backup for the affected ...
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2answers
351 views
good Ubuntu/Debian distro for a development/coding VM?
I have a Windows laptop, but I like to use Linux as a development/coding environment. Currently I am currently running Ubuntu 12.04 as a guest OS with VirtualBox. Some of the issues with this setup ...
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0answers
82 views
Unmanaged VPS bought today. Sendmail not functioning correctly
I purchased an unmanaged VPS today. I moved my website on over, and when I try to send an email. It returns a blank page. Not to mention I had to install PHP myself. Apache was there, for some reason, ...
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1answer
59 views
Where to find info on how to set up a vm in redhat 7.2
I have a RedHat 7.2 server that was set up by someone else long ago as an e-commerce server. It is still in use for that purpose and I dare not make significant changes to it as my Linux-fu is weak.
...
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1answer
243 views
What File Transferring Method (i.e. FTP) Can I Use for rlogin (Solaris 8 on SPARC)
For all my other Unix Virtual Machines, I use SSH and I use WinSCP to transfer files from my Windows Vista machine to the VM's.
Now, One of the VM's is using rlogin, What can I use to transfer files ...
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2answers
583 views
Communicate between Ubuntu VM and Windows host
I'm running an Ubuntu VM on a Windows 7 host. I have two questions:
I think that on Windows, localhost is a loopback address, and sending packets to it doesn't actually transmit any data on the ...
