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I'm working on a Linux mint virtualbox image hosted on Windows 10 where I accidentally deleted the /etc/share directory and subdirectories.
Now my Image can't boot and I have sensitive data that I want to recover.
How can I do so?
First - switch the VM off and don't turn it off.
If you made a backup or taken a snapshot of the VM's image just use it to restore the VM. Create a new Linux VM with the new disk, and use the copied image os the additional one from which you will be recovering data. Don't ever try to recover deleted files/folders to the same drive or even use it as a drive from which the system boots up. Here are some general tips of what to do and what do not when you loose the data.
Otherwise it's very hard to recover any data from that image - it all depends whether you made some other changes afterward or just switched the VM off (which would be the best option). If you made some changes (wrote some data to the disk after deleting /etc/share then you can still try to recover it but if you have the data stored in some other locations - don't waste your time.
I' won't be copying the exact process from other pages but here are some usefull links; the tool that's mostly used in such cases is called testdisk.
How To Recover Deleted Files From Any Drive in Linux
How To Recover Deleted Files In Linux [Beginner’s Guide]
How to Recover Deleted Files Using TestDisk in Linux
Top 20 Best Linux Data Recovery Tools to Recover Deleted/Corrupted Files
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I am in the middle of upgrading my Linux server. The last step will require me to add the existing disk to the new server. So the existing disk will have a /root /home, etc. Will this screw Linux up? I will make sure to boot from the correct disk. Will I be able to mount the "old" drive under a different path?
Just to be clear, there is a new disk with /root, /home, etc. I just need to get the files off of the old disk.
If you mounted your disk to a directory which already contains data this data will be hidden until removing the mount.
So to keep your data safe you can create a new directory and mount the disk to it.
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I started a trial of CloudBerry Backup Server to backup a Windows Server 2012R2 to the Amazon Cloud Drive. I have an upstream of up to 20 MBit/s.
When I started the backup, I got a nice speed (between 15 and 18 MBit/s) so I left it running. When I checked it again later, I had to find out, that the speed dropped to something almost not visible. In the last 4 hours, only 4 GB was transferred.
When I start zo upload a file to Amazon, then I see that the full speed is possible. (e.g. using Amazon Drive to upload files.)
Any ideas, what I could check / change so that the upload is using the available speed again?
Thank you in advance for your assistance.
With kind regards,
Konrad
Amazon Cloud Drive (consumer product) has been designed for personal use and Amazon reduces throughput on large data amounts upload/download. It's made not to compete with S3 I assume.
Have you tried S3 as your backup destination?
The main reason you see this decreasing speed is that Amazon Cloud Drive does not offer something called "Multipart upload" and yes, agree with another answer here, it also is not designed for backups and massive uploads rather just personal data (e.g. jpegs, documents etc).
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I have Fedora 11 installed on VirtualBox. By accident some files in /var directory were damaged or removed(I don't know what exactly). Now when trying to run Fedora, it goes untill choosing the user and freezes. No reaction at mouse and keyboard clicks. Does anyone have any suppositions how to run it, or at least how to retrieve files from virtual machine? I booted it to the terminal where I updated all what is possible - gnome, etc...But still no result.
It's impossible to know what happened without knowing what got removed. However, a great way to get your files out is using scp. Good examples for this can be found here.
Alternatively, if you've installed the Virtualbox Guest Additions you can use a USB drive to retrieve your files. There's a pretty good tutorial on how to get your USB drive working on VBox here.
If you want my best guess as to what's wrong, something in your /var relating to your GUI got removed, as from what I understand you can still boot to your command line. My suggestion would be to get what you need off the machine using the above tools and get a fresh install.
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I am running Linux Mint in my laptop. I made some modifications and I couldn't login in linux enviroment. I boot in live cd (Linux Mint) and I recover my important files from desktop.
I had some important files in virtual machine. I install virtual box in live cd and when I double click in file.vbox it appears the message:
Failed to open virtual machine located in /media/mint/home/xxx/VirtualBox VMs/file2/file.vbox.
A differencing image of snapshot {xxxxxxxxxxxxxx} could not be found. Could not find an open hard disk with UUID {xxxxxxxxxxxxxxxxxxxx}.
I try also to "create new virtual machine" and then choose "use an existing virtual hard drive" and choose the snapshot but it pop up another message:
Failed to open the hard disk file /media/mint/home/xxx/VirtualBox VMs/file2/file.vbox.
Parent medium with UUID {xxxxxxxxxxxxxxx} of the medium '/media/mint/home/xxx/VirtualBox VMs/file2/file.vbox./Snapshots/{xxxxxxxxxxxxxxxxxxx}.vdi' is not found in the media registry ('/home/mint/.config/VirtualBox/VirtualBox.xml').
Result Code: NS_ERROR_FAILURE (0x80004005)
Component: Medium
Interface: IMedium {xxxxxxxxxxxxxxxxxxx}
Callee: IVirtualBox {xxxxxxxxxxxxxxxx}
Callee RC: VBOX_E_OBJECT_NOT_FOUND (xxxxxxxxxxx)
Can anyone help me to recover my files from virtual box boot in live cd?
Hy i got a same error on a different Issue.
How i fixed it:
backup your your VirtualMachine.vbox file.
open your yourVirtualMachine.vbox file with an editor such as Notepad++
search through the vbox file for your missing UUID e.g. 36bbf5bd-3a5e-48ab-80d6-6a2952788fdc
you should find a Section with Tags like this:
delete the whole section beginning by <AttachedDevice> and ending by </AttachedDevice> (if you have a backup of your vbox file)
save your edited file
start your VirtualBox; you should be able to import your virtual machine with this vbox file
edit your imported VM
open the tab "storage" in edit window
9.1) add a new hard disk (your existing VM file e.g. vdi, vmdk) to IDE- or SATA-Controller
Hopefully, you should be able to start your VM
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I'm trying to get some firm handle on how reliable long-term data storage is using Google Docs/Google Drive. Presumably when a file gets uploaded or automatically synced, the transfer is verified using an md5sum -- I see that these are saved as meta-information according to the Google Docs API. And since the file is mirrored to multiple servers, presumably each of these transfers is also verified.
But then the file sits there for years. I don't change it, so no syncing ever gets triggered. Does Google occasionally verify that the md5sum hasn't changed, to protect against silent corruption of the file -- and repair the file if an inconsistency is found? Or is the md5sum meta-information just a static value representing what the file looked like when first uploaded years ago?
I would not worry about this. We can't share the specifics but data hosted on Google is checked against corruption and is also replicated multiple times.
This doesn't prevent you from uploading corrupted data though. So you could potentially use the read-only MD5 checksum field post upload to make sure that the file that you just uploaded to Drive has the correct MD5 if data consistency is critical for you.