I was asked to create a virtual machine using vmware but I only received two files:
one with extension .vmsd
another one with extension .disk1
I am not seeing any option how to import such files and have the VM running. Please, any suggestion is highly appreciated.
Vmware Homepage
Click on Open a virtual machine
Open the location of the folder containing VMware files
Click on the config file that will be visible most likely a *.vmxFile to be opened
VMs can be created using two ways.
You can use the OS images provided by the VMware software. i.e., The list of OS available in the dropdown. This is a regular process.
The other way is to use your custom Image file (.iso file). This should be done while creating the VM itself but not after creation. Also your ISO file has to be pass the pre-checks done by the software.
The .vmsd & .disk1 files which you mentioned are for maintaining the metadata & files. You can attack them during the creation of VM in the Attach external disks section if I'm not wrong.
Related
I need to be able to pass some parameters to my virtual machine during it's bootup so it sets itself properly. To do that I either have to bake the info into the image or somehow pass it as parameters to my qemu-kvm command. These parameters are just few, and if it was VMware, we would just pass it as ova paramas and when the VM launches we would call the ova-environment to get these params. But launching it from qemu-kvm I have no such options. I did some homework and found that I could use virtio-9p driver for sharing files across host and guest. Unfortuantely RHEL/Centos has decided not to support 9p.
With no option of rebuilding my RHEL kernel with the 9p options enabled, how do I solve my above problem? Either solution would work, which is, pass/share some kind of json file to the VM(pre-populated on the host), which will read this and do it's setup OR set some kind of "environment variables" which I can query from within the VM to get these params and continue with setup. Any pointers would help.
If your version of QEMU supports it, you could use its -fw_cfg option to pass information to the guest. If that guest is running a Linux kernel with CONFIG_FW_CFG_SYSFS enabled, you will be able to read out the information from sysfs. An example:
If you launch your VM like so:
qemu-system-x86_64 <OPTIONS> -fw_cfg name=opt/com.example.test,string=qwerty
From inside the guest, you can then get the value back from sysfs:
cat /sys/firmware/qemu_fw_cfg/by_name/opt/com.example.test/raw
There appears to be some driver for Windows as well, but I've never used it.
When you boot your guest with -kernel and -initrd you should be able to pass environment variables with -append.
The downside is that you have to keep track of your current kernel and initrd outside of your disk image.
Other possibilities could be a small prepared disk image (as you said) or via network/dhcp or a serial link into your guest or ... this really depends on your environment.
I was just searching to see if this situation had improved and came across this question. Apparently it has not improved.
What I do is output my variable data to a temp file (eg. /tmp/xxFoo). Usually I write text or a tar straight to that file then truncate it to a minimum size and 512 byte multiple like 64K otherwise the disk controller won't configure it. Then the VM starts with a raw drive as that file. After the VM is started the temp file is deleted. From within the guest you can read/cat the raw block device and get the variable data (in BSD use the c partition as the raw drive).
In Windows guests it's tricky to get to the data. In theory you can read \\.\PhysicalDriveN but I have not ever been able to get that to work. Cygwin can do it and it works like Linux. The other option is to make your temp file a partitioned and formatted image but that's a pain to create and update.
As far as sharing a folder I use Samba which works in just about anything. I usually use several instances of smbd running with different configurations.
One option is to create a ISO file and pass as parameter. This works for both host Win and Ubuntu and Guest Win and Ubuntu. You can read the mounted CD ROM inside the guest OS
>>qemu-system-x86_64 -drive file=c:/qemuiso/winlive1.qcow2,format=qcow2 -m 8G -drive file=c:\qemuiso\sample.iso,index=1,media=cdrom
On Guest Linux Mount CDROM in Ubuntu:-
>>blkid //to check if media is there
>>sudo mkdir /mnt/cdrom
>>sudo mount /dev/sr0 /mnt/cdrom //this step can also be put in crontab
>>cd /mnt/cdrom
I have imported Hortonworks Sandbox(HDP 2.6.1) on my Oracle Virtual Box(Version 5.0.24 r108355).When I click on this Sandbox and press start I'm facing the below error:
The configured driver wasn't found. Either the necessary driver modules wasn't loaded, the name was misspelled, or it was a misconfiguration. (VERR_PDM_DRIVER_NOT_FOUND).
I've tried with changing audio settings also.But unable to change them.
Any solution would be helpful.
Thanks
The easiest solution will be to ditch VirtualBox and use VMware or Docker instead:
https://hortonworks.com/tutorial/sandbox-deployment-and-install-guide/section/3/
Thank you Sergey Kovalev for your comments.
Instead of import appliance option, tried with :
1.Create new virtual machine
2.Select - Use an existing virtual hard disk file
3.Follow the steps for storage
4.Disable audio settings
After doing these steps able to start and work with Hortonworks Sandbox on Oracle Virtual Box.
I had create a VM using Windows 7 x64 on Window 7 x64. 1 year ago. after that today I tried to start the VM but I'm getting the following error.
"System can not find the specified path"
After doing some google on error I found out that there are 2 different files
one is .vmdk and other is .vmdk
So I found this article explaining
How to recreate missing descriptor file.
But it was not helpful as i don't know what is ESX or ESXi. I Don't have any. I simply used my laptop to create VM using VMware.
What I want is, power on the created VM and retrieve the data in it.
Is there any ways/ alternate way to retrieve the data from those vmdk
file.
Let me know if you need any other information. I don't know much about this. Also I have more than 7 vmdk files.
If you created the Windows 7 x64 VM on a Windows system, hopefully you did it with VMware Workstation.
If so, Workstation has a 'Map Virtual Disks' option where you can mount a VMDK and access it through the host system.
It's available through 'File' -> 'Map Virtual Disks'
More detailed information can be found here: https://pubs.vmware.com/workstation-9/index.jsp?topic=%2Fcom.vmware.ws.using.doc%2FGUID-896E61F5-0865-4D3B-975E-DE476AFC7168.html
I have VMware running Ubuntu 14.02 and A Windows 8 Host. I've enabled shared folders and installed VMware tools. Now what I want is to run the web server through /mnt/hgfs/ProjectName
At this point I can access the shared folder from within Ubuntu. I do not have to run sudo to create new folders or files or edit existing. The folder is not mounted as read only and not treated as read only; however, when I try to change the read only attribute within Windows it reverts back afterwards. Is there any clue as to why the web server cannot read the folder as a web server? Even being mounted as read only the web server should be able to read the files.
Turns out the best way to run this is to name the project folder html within vmware and then mount it to the /var/www folder. Now edits have no problem being made and the server runs great for access to both the host and the guest OS.
I am new to Virtual Machines and CLI so please bear with me.
I have a CentOS 6.5 running on Compute Engine.
I ran yum update (without creating a snapshot of the previous disk - Yes I am an idiot) and not I cannot connect to the machine using the ip address.
I tried the following steps.
Tried to connect through Filezilla - didn't work.
Tried through Putty - didn't work
Tried through the browser option given by the CE console - didn't work.
I even tried creating a snapshot and starting up another VM with the snapshot - didn't work.
If anyone knows how I can get the files and folders out from the previous disk, I can start up a new VM and transfer everything again.
I do not have the latest database and this is important.
Please help!
Thanks
Warren
The way to recover is to delete your VM without deleting the disk, then create another VM with its own boot disk, attach and mount the original disk, and recover any data that you need from it.
First things first: on the VM instances page, click on the instance name that is currently running with that disk, and uncheck the box "Delete boot disk when instance is deleted". Then delete the instance.
Now, create a new instance with its own boot disk. To differentiate this new disk from the original boot disk:
using a different OS (or version of the OS) for the new disk, e.g., if using Ubuntu, try a different version or use Debian; if using RHEL, try CentOS, or vice versa
see which one is mounted at / — this should be the new disk
Mount the original disk as read-only and recover any information you need. Once you have a backup of your data, you can remount it with read-write access and try to fix it (but back up the data first!).
I finally solved this problem thanks to Misha for sending me in the right direction.
The steps are below for anyone who has the same issue.
Problem:
While updating the Centos server using yum update, I was unable to connect back to the server.
I tried all possible combinations but no luck. This seems to be a known issue as there was some material on the Compute Engine site regarding this.
Solution:
I followed the steps as Misha suggested. I started up another VM with its own boot disk and then attached the original disk with read write access.
Note: I was unable to mount the disk as just read only.
The commands were
mkdir /mnt/sdb1
mount /dev/sdb1 /mnt/sdb1
Once I mounted the VM, I copied the files from the html folder in the sdb1 disk to the html folder in the sda1(the new boot disk).
The database was a bit more challenging.
I tried quite a few times but copying the files from /dev/sdb1/var/lib/mysql into the new disk mysql folder was not working.
I found some tutorials but nothing helped.
Finally I downloaded the files from within the /dev/sdb1/var/lib/mysql and put them in my local windows mysql installation within the data folder.
Remember you have to download everything which includes the ib_logfile0 , ib_logfile1 and ibdata1 including the folder which has the *.frm files.
Then I opened localhost/phpmyadmin and voila... the files were there.
The rest was pretty simple... Exporting and uploading the SQL scripts back to the server.
This took me about 12 hours to figure out.
Thanks again Misha.