Ubuntu Installation :: Installing From Virtual Drive To Another Physical Disk
Aug 17, 2010
I am currently using windows xp, but I have acquired another hard drive and wish to install ubuntu to it, unfortunately i do not have a working cd drive. I have loaded the newest iso in daemon tools and it asks me if i want to install it in windows, or restart my computer to do a full install. i wish to do neither. i want to install a full copy to my other drive with the virtual cd drive. I have found alot of help dealing with installing it on the same drive as windows or something that would require a floppy drive. this task seems like it would be alot simpler than installing on the same drive, buy maybe not. Did i miss a tutorial somewhere?
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Jul 8, 2010
I have two old windows 95 computers. The problem is I have files and programs that have specific settings that I need. The computers are old and I want to just make a copy of the hard drive and insert it into virtual box. How can I do this?
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May 12, 2011
I am encountering some problems regarding CentOS 5 and I am going to kindly ask your help in debugging further what is happening. I will give as much information as possible about the setup. Here we go. We use on one server of our servers, GOautodial, an inbound/outbound call center application, that it's installed on a CentOS 5.5 (Final).
# cat /etc/*release*
cat: /etc/lsb-release.d: Is a directory
CentOS release 5.5 (Final)
GoAutoDial CE 2.0
# uname -a
Linux xxxxx.com 2.6.18-194.8.1.el5.goPAE #1 SMP Fri Jul 30 05:30:57 EDT 2010 i686 i686 i386 GNU/Linux
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Apr 9, 2009
I have got a hold of a extra hdd along with a hdd enclosure. I have tried looking for information on how to install linux on to one but haven't been completely successful on my search. So I turn to all of you. I was also wondering if its possible to have it were I can use it on multiple computers so I can use it for computer repair.
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Jul 20, 2010
I am trying to run You Don't Know Jack in wine - appdb says it has Platinum status, so compatibility shouldn't be the issue. My laptop doesn't have an optical disk drive. So, I ripped the disk to an iso image, mounted it with gmount-iso, and tried to open the program.
The program still says the disk is not inserted. I know on previous laptops with optical drives, I could mount an image on /dev/cdrom0 or /dev/sr0 or whatever and it would be recognized. My /dev directory had no cdrom0 directory, so I made one. I mounted the iso there but it still didn't recognize it. I've tried in my home folder, in /cdrom, and in my newly-created /dev/cdrom0 but no luck.
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Jun 27, 2010
My Ubuntu system drive is starting to throw up S.M.A.R.T. errors. I have two partitions on the drive (/home and /) and grub in the mbr. Is there a way to exactly clone this drive to another one so I don't need to reinstall or re-setup anything?
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Jul 24, 2011
I am attempting to install Ubuntu on my girlfriends laptop, She is pretty much fed up with windows, and has been seeing me rub linux in her face (Compiz helps haha). The major problem for me is she does not have a CD/DVD drive, Nor do we have USB drives. Daemon tools will let me boot a virtual drive at boot (in theory according to their forum) so this will be my choosen method. The concerns/questions I have are these:
1) If I install from a virtual drive, Will the Ubuntu partition list that as a device and try to load from it? (When I am done, I am deleting windows and thus the drive) will that cause any major issues?
2)MS Will have to stay on the drive for awhile, I plan on shrinking it down as far as possible (Most likly with gparted) then formatting it as EXT and extending Ubuntu to occupy the whole space, Can gparted do that? (I've only used it with Linux, Never tried with MS)
3) Is there anything I should do PRIOR to installing Ubuntu, other then backing up files?
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May 25, 2010
What is the difference between vfloppy and virtual floppy disk drive?
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Jun 3, 2011
I downloaded the Fedora-15-i386-DVD.iso and want to install Fedora 15 from it. I don't want to use the LiveCD version since it doesn't have all the packages. So I follow the tutorial given here under the section titled "How to Make a bootable USB Drive to Install Fedora instead of using a physical DVD ". Everything finishes off well. However. when I boot my computer using the USB, it says "USB doesn't have operating system. Safely remove and reboot".
Now, what to do? I also didn't get the line the tutorial saying, "You should now have a bootable USB stick which will run an 15 install. When you boot the stick, you may also add askmethod to the boot line and select a hard drive install and select the drive as /dev/sdb1 (or your USB device drive) and the path should be / " What am I supposed to do?
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Feb 20, 2010
I have been learning Debian by using a virtual machine. After fine-tuning my installation procedure, I decided to copy that installation to my physical system. The hard drive already has another Linux based system installed. I plan to dual boot.After copying files I updated fstab and menu.lst.The partition scheme between the virtual and physical environments are similar, but the partitions are not mapped exactly the same.Thus the Debian system on the physical hard drive fails to boot simply because the initrd is created for the root partition location on the virtual machine. The initrd created in the virtual machine is looking for the root file system on /dev/hda1 whereas on my physical drive the new location is /dev/sda7.How can I rebuild the initrd on the physical system? I started to use the installation DVD in rescue mode, but I did not get too far.
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Aug 13, 2010
I have an acer laptop (TravelMate 7320) which came with Windows Vista. I have made copies of the recovery disk for vista and installed Ubuntu 10.04 and would like to run Vista from a virtual machine in Ubuntu and for this purpose I installed Virtualbox. The problem is that the recover disk that acer provide require the hard drive to partitioned in a certain way otherwise the installation process error outputting "No partition available".
Acer do provide a bootable CD for download from there website to partition the drive before installing from their recovery disk but I have tried this with virtual box and the process doesn't detect the virtual drive. So my question is does anyone know of a virtualisation software for Ubuntu that they could recommend that allow for the partitioning of virtual disk before the installation of an OS? Or even better does anyone know how to do this with Virtualbox?
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Oct 26, 2010
I was going to go ahead and intall Ubuntu 10.10 on my Windows XP w/sp3 Machine for a dual-boot config. I've done this before without issues but want to see what setup is Optimal giving my current disk drives.Here's my current setup in this picture. You can see I have my windows on Disk0 C: and the other 38GB on this drive Unallocated.
My other 80GB drive has Two 40GB windows file systems but I could erase one of those (Disk I to install Ubuntu on. Does it really matter? From what I recall Grub takes over fine and manages the boot. Thanks for any tips before install. Should I install on Unallocated on Disk0 or free up unallocated space on Disk1 for Install? thx
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Feb 11, 2011
This may seem like a silly question but I have many servers and sometimes we forget when we login if it physical or virtual running on a VMware system. This makes a diffrence when I try to get a console access etc. So I wanted to know before if its physical or VM.yes I know i can change motd once i get the info or make a list etc. There are many ways not OS related for me to find this info out. But I was wondering if there was a Linux command that I could use when I ssh to a system to check if its physical or logical?I have inventory information etc and vm vsphere to check but that can be time consuming if I just want to check something quick.
uname -a or something like that that would tell me would be cool. I am thinking there is no command as Linux really does not care if its running Vm or physical.
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Mar 3, 2010
I am new to Linux kernel/user space programming having been an assembly programmer in my previous life. I am now using 2.6.x kernel on an embedded CPU that has a few dedicated hardware blocks (including more CPU running just C-code, i.e., no operating system). There is a single DRAM connected to this chip with one Linux CPU + multiple h/w blocks. No swapping.Question(s):
1. The Linux CPU needs to talk to hardware blocks that obviously physical DRAM addresses while Linux processes/threads use virtual addresses.
2. How do I translate these addresses back-n-forth? For example, a Linux process may want to allocate memory and then hand it off to a hardware block to write into it. Then after a while the process will read it.
3. Sometimes, the hardware block may write a physical address into the shared memory. The Linux CPU will read the shared memory and then convert the physical address to virtual memory and go read that location.
How does one achieve all of this? If this is being extremely stupid, then please let me know. Hopefully, you can give me some pointers.
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Jul 18, 2010
I use the command ln -s a lot to create symbolic links. The problem is that I need to run a routine that looks for a specific string in ALL of my websites and I'd do it somehting like this:
Code: cd /home grep -R "function_enhanced_mail_v100.php" * however, it's going to recurse all the "folders" and include symbolic links which I don't wish to do. Is there any way to prevent this?
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Jul 15, 2010
I am interested to know memory layout in linux os.What are the differences between physical address and virtual address?
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Apr 2, 2009
I've read several write ups on how to convert a physical linux box to a virtual one, but have yet to do it. I've tried a few times just playing around with no success. Generally I use VMware ESX as my host of choice, but am open to citrix's XEN (as citrix presentation server is my day job). I run 3 websites out of the house (on junk left over desktop.. can't believe I've had such good (lucky) uptime). One of the sites was particularly difficult to set up, so I'd rather not ahve to do it over again. It's built on OScommerce (LAMP).. so it's a database server as well come to think of it. So.. what have you tried to convert with/to?
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Feb 22, 2011
I downloaded centos from their official bittorrent.It contained two iso files and md5sum.txt,sha1sum.txt and sha256sum.txt and also md5sum.txt.asc,sha1sum.txt.asc and sha256sum.txt.asc.Now when I mount iso file to virtual drive there is no autoplay option.Can you tell me how to install it.I dont see any setup file?
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Jun 14, 2011
I downloaded the latest version of wubi and when I click to run i get the error "pyrun.exe - No Disk. There is no disk in the drive. insert a disk into drive DeviceHarddisk2DR2".
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Feb 21, 2010
A process is trying one access to memory, for example through an array (ex.: vect[0]=123. What happens?
Here below what I guess but I'm not sure and accept any comment (please, distinguish between "the system" and "the CPU" in case).
Let's suppose swapping to disk disbled.
We have two scenarios: without and with cache.
If no cache is present in the system:
1. The CPU must discover the phys addr of vect[0] virtual addr. To do that, has to read from 3 (or 2 depending on the system?) pages tables, stored in memory as well.
2. The CPU writes to the final address.
These mean 4 memory accesses.
If cache is present:
1. Like above but, if the pages tables are in cache, we have 3 accesses to that.
2. If the req. page is not in cache, it's reads from ram and transferred to it. Afterwards, cache is written.
In the best case we have 4 cache accesses.
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Jan 27, 2010
I have set up OpenVPN server using a bridged configuration. My networking "powers" aren't that advanced, so I did this by following the openvpn tutorial for bridged servers. I have tested this with several clients connecting to my server from different locations and it works very nicely (including broadcasts).
My server's LAN IP address is 192.168.2.4, and my LAN's mask is 24. Clients connecting to my server get assigned IP address that also fall within that subnet (i.e., the 192.168.2.x pool contains both physical machines in my home and "virtual" hosts). This is what the OpenVPN walkthrough specifies:
[Code]...
I was wondering if it would be possible for the VPN to fall within a different subnet (such as 10.0.1.x). I would also like to do that without adding another physical NIC to my server, or changing my physical IP address. I would imagine this is possible, since that's how hamachi does it.
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Jun 26, 2010
I have a 32 bit Ubuntu installed and my Laptop has 4GB RAM, but only 3GB is considered by Linux. My question is: what is the reason for the upper limit on physical memory ?
Code:
dmesg | grep Memory [0.000000] Memory: 3052428k/3112960k available (4673k kernel code, 56364k reserved, 2121k data, 656k init, 2200904k highmem) I am familiar with the virtual memory concept where linux splits upper 1GB for kernel and lower 3GB for user processes. In total, linux 32bit can address 4GB virtual addresses. Does this meant that 1GB of physical memory is already mapped to 1GB of kernel space and Linux only shows the remaining 3GB physical memory left for the user in the above command.
I did some searching on the internet and found some articles related to this, but it only confused me further since some articles suggest 4GB is the upper limit with mentioning whether it's virtual or physical memory, some bring in the concept of PAE, etc. I'm relative new to Linux's memory management, so it'd be really helpful if someone could answer this.
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Mar 15, 2009
I have xp/fc8 on an older ide drive and just installed a new sata 1T and planned to put fc10 on it but in the process I killed my fc8 installation. I told the installer that the other disks were off limits but it was somewhat confusing at the bootloader page. So, I suspect that I told it boot off the fc8 disk. If that is the case is there a way to restore the fc8 install by somehow rescuing the /boot partition on the fc8 disk?
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Oct 6, 2015
I've been experimenting with Debian coming up with a system with suits my needs. I have done this and I'm wondering, "Do I have to start from scratch on my physical machine or can I convert an existing VDI to IMG and possibly port it to the physical machine?"
System: Debian Testing
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Feb 23, 2010
I have a 4 disk software RAID array made up of Seagate drives. Let's name them sda, sdb, sdc, sdd. And let's say SDC is failing. Big question. How do i find out which of the 4 physical drives it is? They all look the same to me when i open up the PC case. Maybe some utility which will load up heavy usage on just one drive and i will try to put my finger on them and figure out which one is vibrating? Or maybe there is a smarter way?
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Nov 4, 2010
As i undertsand - out of 1GB of the virtual Address space for Kernel from 3GB to 4GB of the process address space, Kernel image (code, data, bss, stack, heap) resides staring @0x0 address. Vmalloc area starts either at the end of Physical ram size or at 896M. This 896M cap is mandated to ensure that minimum of 128MB is reserved as vmalloc_reserve for vmalloc,kmap etc.
Is the understanding correct? Now trying to map Physical Zones into this 1GB address space
Initial 16MB is mapped to ZONE_DMA
16MB - 896MB is mapped to ZONE_NORMAL
896MB - 1024MB is mapped to ZONE_HIGHMEM
Does this mean that Kernel image is residing in ZONE_DMA area? Any call to vmalloc() in kernel code will return address beyond 896M? insmod of any LKM will internally invoke vmalloc() to obtain contiguous area - where will this code physically located along with rest of kernel code in ZONE_DMA or in ZONE_HIGHMEM?
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Jun 29, 2010
I would like to configure and SAN disk. But I do not have a physical SAN disk. Is it possible to create and configure a Virtual SAN disk and work on it with virtual machines?I have around 400GB of space in my Laptop.
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Nov 23, 2010
My raid array has failed. I have two disks /dev/sda and /dev/sdb./dev/sdb has failed and I could not rebuild the array(madm returned that the device is busy) so I rebooted the machine. After that, the whole sdb disk went missing, as it now only shows sda in fdisk -l.Did the disk went totally dead or my raid glitched?
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Feb 19, 2011
I want to create RAID disk on machine_2. Next, I want to replace one of the RAID disk from machine_2 to with the RAID disk from macnine_1. Then I want to build the RAID disk from machine_1 with machine_2 data. This is my question:
How to determine the physical drive the system boots on in a RAID array?
Or
How to determine the RAID disk from machine_1 in machine_2?
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Mar 9, 2011
I am trying to figure out the "actual" disk size used by my system. When I run the "df -h" command,I am not taking here into consideration the shared memory of 2Gb as it is a sort of virtual shared memory and is not allocated physically. Is that correct ?
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