Red Hat / Fedora :: Create VM Of Current System To Test Big Changes
Mar 18, 2010
I have a laptop with 1 hard drive (80gb)
I currently run CentOS 5.4 and I want to create an image of my current hard drive so that I can play it in a VM Player (VirtualBox).
What utility can I use to create a disk image? Also, Since i'm only using 20gb. I think I want to make a "sparse" file so that the image only takes up about 20gb.
Now... if there is an easier way to do this... let me know. I tried a few tutorials online with no progress. I spent all day yesterday trying to figure this out. Literally, all day.
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Mar 15, 2010
I am trying to install mysql 5.1.44..so i downloaded the binary package, i extracted it and then followed the instructions that were in the manual but i keep getting this error when running this command
Code:
scripts/mysql_install_db --basedir=/home/mosty/mysql
the error is
Code:
Installing MySQL system tables...
100315 20:07:27 [Warning] Can't create test file /var/lib/mysql/mosty.lower-test
100315 20:07:27 [Warning] Can't create test file /var/lib/mysql/mosty.lower-test
[code]....
You can try to start the mysqld daemon with:
shell> /home/mosty/mysql/bin/mysqld --skip-grant &
and use the command line tool /home/mosty/mysql/bin/mysql to connect to the mysql database and look at the grant tables:
shell> /home/mosty/mysql/bin/mysql -u root mysql
mysql> show tables
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Dec 8, 2009
I have installed Fedora 12 and am running it successfully. I have made a few stupid mistakes a couple of times and have had to start from scratch with a complete OS reinstall on a few occassions. I am happy with my current setup and am wondering is it possible for me to create a Live CD that has my exact configuration so that If I make a mess again, I can just stick in my backup DVD/CD's and roll back to my happy (Known to ne Working) sate. Something like System restore on Windows...... Is this possible?
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Nov 15, 2010
I have a fedora 11 installation on my machine , with a customized partitioning of the 500GB sata HDD , I wanted to create a exact replica image on a USB stick , for future installations on other 500GB sata HDDs .. while only need to create a copy of the 5 GB (/boot + / ) while the remaining 400 GB + is a Data Logger partition which can be created by a script. I tried doing a rsync .. but have got stuck up with the bootable drive configs et all ..
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Feb 6, 2011
I was installing yum from the server folder. first i copied the server folder in a folder which was at root then i change the current directory to server and then create a repo by using following command
Server]# rpm ivh createrepo then tab to get the correct name
then ]# createrepo .
]#cd /etc/yum.repos.d/
]# cp -apr rhel_debug_info.repo yum.repo
]# vi yum.repo
[Code]...
how can i completely install the yum so that i can install my necessary packages
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Apr 24, 2009
I was just wondering if there is a way to capture current state on a machine and create live cd from it?
If not - what is the best way to create Live CD with optimazied system updates and configuration packages.
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May 26, 2011
I'm trying to run kmail on Slackware -Current. Kmail starts then akonadi server runs checks.
Then follow many errors:
I've reinstalled MySQL and it seems to be working but there is this error repeatedly:
I've done some Google searches but I'm not able to find a solution to get akonadi to work.
[url]
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May 20, 2009
Well i started out with installing fedora on my USB stick. I have now installed Fedora on a intern hdd. How can i access ALL the files there's on the usb? They are both Fedora 9, and i know the password for root on both systems.
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Apr 8, 2009
I have installed Postfix + Amavisd-new, then I am started all services (and configured main.cf and master.cf to use amavis).
The questions are:
1) I am trying to test antivirus scan using eicar test virus
Code:
And the message is successfully delivered to mailbox with mark "CLEAN" in maillog. But I cant see any attachment using
Code:
Where is my mistake?
2) Should I update clam and how I can do it?
3) Is spamassassin enabled by default in amavis (I have started daemon)?
4) Where configuration files of spamassassin is stored?
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Oct 31, 2010
I may require some aid in installing Fedora 13 (via a burned CD iso image) on a double boot system with Windows 7 as default. After going through the keyboard mapping and time-zone selection, I had the option of shrinking my Windows to accommodate Fedora, which I chose. The following selection appeared:
/dev/sda1.ntfs 0MB
/dev/sda2.ntfs 0MB
/dev/sda3.ntfs 0MB
If I try to decrease any of them, this communication materialises: Error: new size same as old size. So I canceled the installation set-up and rebooted Windows. I'm quite new to alternative operating systems (having used Windows all my life) and would appreciate a concise and legible answer.
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Feb 7, 2010
I am trying to use an ATI Radeon x300 graphics card with my current system setup with fedora 12 but i am having an openGL issue. I am trying to create a 3D model using comsol and i get an error like:
Failed to initialize 3D graphics. OpenGL not fully supported.
This is a hardware/software issue with the graphics card... not the program COMSOL. How could i enable openGL support to correct this issue?
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May 16, 2011
I already install mailgraph in ubuntu 10.04. but now I got problem with mailgraph in ubuntu 10.04. No graph appear in the graphic created by mailgraph.I know mailgraph consist of perl and cgi script.If I have postfix log, how to test mailgraph manually to create the graphic using its perl script from existing postfix log. Just to see whether the graph created or not in the graphic
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May 31, 2011
I'm looking into creating a virtual machine to mirror a web hosting environment I pay for. Long story short, I need a lab so I am not taking down the live site with my mistakes.Questions:
1 - What OS is most commonly used and / or best for running apache web server?My paid host is running "Operating System =linux; Kernel Version2.6.28.5-grsec-sg2"
2 - What is the best open source solution for creating a virtual linux machine on a box running XP?
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Feb 8, 2010
mysql -u root -p but unable to create any database.
if i tried to configure it's giving error ERROR 1006 (HYOOO) : can't create database 'test' (error: 2)
my location for database is /var/lib/mysql and permissions are
drwxrwxrwx mysql root.....
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Jun 20, 2010
I currently have a server setup in a perfect way for my specific network. Is there a way that I can mirror the server EXACTLY to a CD that will install all my configurations and the like upon CD boot?
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Feb 10, 2010
problem that I have in red hat enterprise linux version 5. I intend to create a file system but I'm having troubles because it show me an error after typing the command to create a filesystem:mke2fs �b 4096 /dev/sap (mke2fs �b 4096 /dev/<device>)The error finish with a message: "The device apparently does not exist; did you specify itcorrectly?"
I don�t understand why this happens
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Sep 1, 2010
I would like to create an install cd/dvd from my current Debian Lenny installation.
I guess this will imply all official debian packages will be saved.
As additional nice to have info would be the following:-
How I would capture none standard packages/configurations on the system
i.e. I have additional packages installed I have a customized Apache and Php configuration i.e. config files. Also mysql database is populated forsome applications.
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Sep 1, 2010
I would like to create an install cd/dvd from my current Debian Lenny installation.
Anybody have any tips as how to do this.
I guess this will imply all official debian packages will be saved.
As additional nice to have info would be the following:-
How I would capture none standard packages/configurations on the system
i.e.
I have additional packages installed
I have a customized Apache and Php configuration i.e. config files.
Also mysql database is populated forsome applications.
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Jul 9, 2011
I am currently in place where I get high speed internet connection. I am using F15 64 bit version. I've installed a lot of softwares and updated theOS completely. My question is is there any way that I can create a startup disk of my system so that I can install it in other system of same configuration.
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Aug 24, 2010
Code:
$ echo 2 * 3 > 5 is a valid inequality. This will create a file in the current directory named '5' with the number '2' in it, the names of all the files in the current directory, followed by the number '3' and 'is a valid inequality.'
What I do not understand is why 'is a valid inequality' gets written to this file. I thought it would write '2', all the file names in the current directory, then '3' into the file called '5'. Why does the 'is a valid inequality.' get written to the file also?
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Nov 19, 2009
While installing Fedora 12, no devices were found on which to create file system (see attch.). I get the same message either on Live CD or DVD boot start. It looks like Fedora do not see my hdd. But Palimpsest can see my hard drive (see attch.)
Hdd is on my NForce 4 Ultra m/board and connected via "sata". Also I have raid controller on my board. But it is not in use: I turned it off in bios.
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Jun 26, 2010
Attempting to create a backup script to copy files from one file system to a remote file system.
When I try this I get:
Quote:
# tar -cf - /mnt/raid_md1 | gzip -c | ssh -i ~/.ssh/key -l user@192.168.1.1 "cat > /mnt/backup/fileserver.md1.tar.gz"
tar: Removing leading `/' from member names
Pseudo-terminal will not be allocated because stdin is not a terminal.
ssh: Could not resolve hostname cat > /mnt/backup/fileserver.md1.tar.gz: Name or service not known
[Code].....
I know that the remote file system dir is RW and the access is working fine. I am stumped...
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Sep 9, 2010
I'm looking for system stability test software to stress test all of my hardware. I used to use Everest on windows, and I found a closed source program called burnintest that should do what I like, but it uses KDE 3, which I never use. Is there a ubuntu friendly (open source a plus) stability software in existence?If nothing exists, I'll have to make one.Waspinator[URL]
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Apr 28, 2011
I was recently playing with building some things from source, and to do that I had to install all kinds of libraries, including lots of components of KDE. I'm done compiling, but now I have all this software installed that I'll never use again. I'm about to do a fresh install of 11.04; is there a way I could maintain a test environment of some kind so that this doesn't happen in the future?
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Mar 6, 2010
I build a new test machine where i need to bring data from live machine. the data is kind of flat files and some propreitary application axigen mail server.
now what i am suffering from, which commands to do first practise. there is remote site with 1mps speed of wireless between live and test machine. on daily basis aprox 14gb .tar.gz files it need to move it.
i found scp,rcp,rsync,sftp etc. which is fastest way to replicate or copy to remote machines.
the data is on live machine /var/opt/application and on remote same directory too /var/opt/application
i try using scp it take aprox 8-10 hours to copy single 14gb file.
if possible where to see such commands logs results, if anything get down error discontinue while copying.
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Dec 7, 2009
I have decided that my partition table does not meet my needs Barrymore, and I want to shrink the "/" partition by 80GB, and then create another file system on that space. I did some research on-line, and I'm not sure which way is the easiest and more secure way to perform the change with out putting the "/" file system on risk.
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May 12, 2010
Before going too far it may be simplest to answer the question "Does Live USB Creator create a working system for Windows 7?" If not then don't bother reading further. I have installed Live USB Creator on a 32-bit Windows 7 computer but when I run it I can't for the life of me get it to recognize any type of drive. I've read and tried the instructions of using the command line with the --force [drive]: but that has no effect Maybe I am misunderstanding this whole program. From what I read about it, this program will create a working Windows system, place it on a USB stick and then run Windows on a different computer. In my application I would like to run it on my work computer which has Windows XP. If this application should work then will I have complete access to all my computer drives and files and the network/internet? I imagine I would need to install all necessary programs so that I could use them in Windows 7 and would I need to install those programs on the USB stick or could they be on a local hard drive?
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Dec 6, 2010
If you do, after the completing the test - it will eject the CD.
and how are you going to reinsert the CD to complete your install? you're remote remember ??
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Apr 9, 2010
Have Ubuntu & it was working well, but has become slow, 'greys out' on me regularly - eg. pic loses colour & nothing will respond for a few or more seconds. Also 'Ubuntu Software Centre' & "Synaptic' thingy come up with errors, saying can't install or uninstall progs. Although it seems they may do it OK despite saying they can't. Have Computer Janitor installed, but this is no longer working at all. So... is there a program or such that I can use to test/clean out the system?? For that matter, is there a program for testing hardware, as I'm not sure if it's an indication of unhealthy hard drive or such?
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Apr 2, 2009
I want to test my system call that be goint to add to kernel, But when i finish compiling kernel, i found my system call code not work. the code i want to return the system time "struct timespec":
/*----------Start of mycall.c----------*/
#include <linux/linkage.h>
#include <linux/time.h>
#include <linux/kernel.h>
[code]....
so i want a method to test the new system call before compiling kernel.
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