Questions tagged [snapshot]

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8 views

How to snapshot qemu vm and exclude block device?

I'm searching the web for a solution to exclude qemu devices from snapshoting like it exists for virtualbox and vmware with "persistent" or "independent" as parameter. (ref. https://serverfault.com/...
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13 views

How to remove a snapper config when getting error “deleting snapshot failed”?

I am using snapper to take snapshots of btrfs volumes. I have one for /var as well, but decided that I want to get rid of it. It corresponds to the _var snapper config. I can't manage to do this, ...
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15 views

Make Snapshot of Main OS

Can I make snapshot(something like that) of my main os/host machine(Which in this case is parrot os) ? Because when I use my parrot within a month or so I end up with broken os(because of my tinkering)...
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1answer
26 views

Can I continue use my VMware Workstation virtual machine before a snapshot completed?

I'm using VMware Workstation on Windows. When I create a snapshot while my guest VM is running, it will take long time (probably more than 10 minutes) to complete the whole process. During this period,...
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1answer
59 views

How to mount System Volume using APFS snapshot

I am not able to mount System Volume (root) using APFS. I only see my Data Volume. $ mkdir /tmp/snapshotbackup_root $ mount_apfs -s com.apple.TimeMachine.2019-10-29-174444.local / /tmp/...
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156 views

AWS Instance Created from Snapshot Failing “Instance reachability check”

I have a dev environment hosted by AWS (t2.large, RHEL 7.4) that is backed up with a snapshot every couple of hours. Today, I tried to create a new instance from one of those snapshots to run some ...
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21 views

Starting Snapshot Debugger Results in Error 2146233033

When attempting to debug a Azure App Service and trying to attach Snapshot Debugger, I am receiving "Unable to launch Snapshot Debugger (Error code 2146233033)" after selecting the resource and ...
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1answer
226 views

What should happen if I delete files in a BtrFS snapshot?

I have an openSUSE computer that started with BtrFS early (like Leap 42.2). At one moment in the past the /tmp subvolume had become full (one big file) and I was not able to recover space until reboot ...
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207 views

Create snapshot in virsh for domain with two or more disks

I would like to back up the disks of a VM following the Live-disk-backup-with-active-blockcommit procedure at Libvirt Wiki. I create an external snapshot with virsh snapshot-create-as --domain ...
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5 views

Elastic Search snapshot cyclic deletion

I have setup scheduled daily ES snapshot backup in my system but i dont want to keep any snapshot older than 1 week . I know there is curl -XDELETE to delete the snapshot . But how can we delete the ...
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48 views

Do you have to wait for the “Saving state” prompt to go away before continuing to use the VM?

I'm setting up a CentOS 7 VM on VMWare Workstation Pro 15. In the interest of being able to recover if and when something goes wrong, I've been taking several snapshots at different points of setting ...
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1answer
125 views

Vmware cannot create snapshot

I use Veeam to backup our servers, it has been running smoothly for years. Veeam creates a snapshot of the VM and than backs up this snapshot. After completion the backup job deletes the snapshot. Due ...
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67 views

Change the time stamp on snapshots (VLC)

I'm shooting snapshots with vlc player a lot for my clients. I configured the naming of those allready in the settings (set a custom prefix and added a timestamp) My Problem is, that the timestamp is ...
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17 views

Is it possible to save browser tab, including javascript variables, content of form fields, cookies, etc. for offline viewing later?

I'm trying to save a state of card in browser (preferably firefox or chrome). Is it possible? Something like snapshot in VirtualBox. Let's say I'm using javascript app that doesn't have save feature ...
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149 views

Emulator runs but the screen of the emulator shows nothing

When I run the app emulator, it is shown but its screen is black, and there are some errors: 12:46 PM Emulator: deleteSnapshot: for default_boot 12:47 PM Emulator: Warning: Quick Boot / ...
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1answer
310 views

I moved a VM with snapshots and I now cant recover from snapshot

I moved a Virtual Machine and it's files to another pc (moved, not cloned), and now I can't recover from snapshots. I have all the files (of the VM) but no snapshots shown in the program. I need to ...
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303 views

Shadow Copies are properly created, but in Explorer I can’t access to “previous versions” (reported as not available)

Windows 7 Ultimate 64 bit: I always utilized the shadow copies, not only to restore the OS to a previous version: I mainly use the shadow copies to restore single files, by using the "Previous ...
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3answers
779 views

What is the purpose of snapshots in virtualisation software?

I've recently started using virtualisation software more often, specifically VirtualBox, and the idea of snapshots confuses me. I understand that they give the user the ability to revert a VM to a ...
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2answers
75 views

Running du on timeshift folders give different results

My goal is to find which files/folders take the most space in a snapshot from the backup tool timeshift but, when using du it yields different results: # du -hs * 18G 2018-09-21_16-14-57 910M ...
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1answer
111 views

How to perform application-consistent backup of Git repo

Imagine I have a bare Git repository on my own hosted server that is used by multiple folks for cloning, pushing, and pulling. What commands would be necessary to get such a repository into a state ...
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1answer
34 views

virtualbox snapshot - is it a safe back-up if I want to over-write (dd to) sda1?

I want to do some testing useing chroot to overwrite sda1 (my main partition) in a ubuntu VM. Is taking a virtualbox snapshot a safe way to create a backup? i.e. in the VM I want to create a chroot ...
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1answer
616 views

Btrfs copy snapshot with rsync

So I have been searching for this up and down, but must be doing something fundamentally wrong. What I want to do: I have configured my NAS to make snapshots of my home folder, file system is btrfs. ...
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1answer
831 views

Suggestion on how to consolidate VMWare VM snapshots

I was given a copy of a VM with many snapshots. The size of the folder that contains the VM is about 200GB and there is about 371 snapshots in it. ls | grep [.]vmdk | wc 372 372 14513 I ...
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499 views

How to convert Virtualbox VM into KVM VM, with latest snapshot included?

I have been trying to change my existing Virtualbox VMs (.vdi) into .qcow2 format and run it on KVM. I have successfully done the conversion (.vdi > .qcow2) but, the converted VM is not in the same ...
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1answer
110 views

Taking a snapshot of a demo environment

I am using a 27" Late 2015 iMac. I have a set of applications and websites that I use as part of a demo. Currently, I have to manually load everything at the beginning of the demo and make a set of ...
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1answer
3k views

For automating a full backup of a VM, is exporting as an appliance better than cloning the VM?

I recently had a mishap on my VM, where for somereason the settings of my BridgeNetwork got changed randomly. I had to spend quite a bit of time to figure out the root cause. Rightnow, I manually copy ...
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1answer
1k views

Hyper-V snapshot/checkpoint behavior with physical hard disk

What is the behavior of the snapshot/checkpoint feature in Hyper-V when there are physical hard disks attached to the virtual machine? I have a virtual machine with four physical disks passed through ...
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3answers
702 views

Test if btrfs subvolume exists

I have a problem in a bash procedure, which should port my old rsync disk backup (and archive) to my future btrfs snapshot backup. I want to use the line: # btrfs subvolume snapshot /targetdir/@...
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1answer
2k views

How to access a ZFS zvol SNAPSHOT block device?

I have an Ubuntu 16.04 box running ZFS. I'm using the zfs-auto-snapshot script to create regular snapshots. Included in my ZFS setup is a ZVOL block device. I want to access (read-only) a ...
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1answer
340 views

Terminal fails to show the local snapshots on my computer

I typed sudo tmutil listlocalsnapshots / in terminal and entered the password. However, nothing happened. I suppose terminal to return all local snapshots on my computer, but it only returns xxxs-...
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1answer
251 views

VirtualBox vdi not growing over 32 GB, NS_ERROR_CALL_FAILED when trying to delete snapshot

I am running VirtualBox 5.2.0 on Ubuntu 16.04 64-bit. The quest system is Win 10 64-bit. At some point guest went jammed because vdi disk of dynamic size 100GB refused to grow over 32GB. I have ...
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2answers
874 views

Can I export appliance with all the snapshots in VirtualBox (Version 5.1.28)?

I use Oracle VM VirtualBox Version 5.1.28 r117968 (Qt5.6.2) . I have two virtual machines (Windows 7 64bit and Ubuntu 14.04.5 LTS) with 8 snapshots in Windows and 6 snapshots in Ubuntu. I want to have ...
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1answer
391 views

Is there a ZFS-aware diff?

I often make snapshots of a ZFS volume (containing AOSP) make some changes (often extracting ZIP files over then top, or running scripts) and then run diff to see what has changed. This is really ...
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385 views

VMWare warns about consolidation after cancelling snapshot creation

I'm using VMWare vSphere client on Windows 10 to connect to my company DC (OVH). I wanted to create a snapshot of a VM (Debian) before updating the packages. So I tried to create a snapshot of a ...
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1answer
416 views

How much data is transferred in case of zfs send with incremental snapshots?

My scenario is two servers in a hot-standby setup using ZFS to host VMs and using ZFS incremental snapshots for replication of changes to the VMs from one server to the other using something like zrep ...
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1answer
281 views

Btrfs automatically bitrot correction with snapshots?

I want to set up a notebook (debian) with 1 SSD and 1 HDD each with Luks and Btrfs on it. Because the SSD and the HDD doesn't have the same speed, i don't want to use Btrfs' Raid-1 on it, but i also ...
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1answer
202 views

Chrome extension to save all downloaded media for the current page

I know of winhttrack but it doesn't go well with javascript. Is there a Google extension that will save all the ressources that have been downloaded since you're visiting a site in a tab ? (all the ...
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1answer
892 views

How do I set up a bootable incremental ZFS-on-root backup on a seperate drive?

I installed antergos Linux with ZFS-on-root. The system is up and running and I’m glad because that alone is a success for me. Now apparently ZFS is mainly for NAS, RAID, Server configs etc. (and I ...
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1answer
434 views

How to setup a Ubuntu server 16.04 host machine, for running several virtual machines

i need some help with setting up my host machine for running virtual servers on ubuntu server. I have a server with 4x2TB SAS which are in raid6 using raid adapter (dell perc h730p). The idea is to ...
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1answer
1k views

How do I revert to latest external snapshot in KVM?

I have created an external snapshot with KVM using virsh snapshot-create-as domain --name snap1 --disk-only Then, I started the domain with “virsh start domain”. I know that reverting to external ...
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276 views

Does ZFS support something like “nodatacow” of BTRFS?

This is a follow up to a former question about BTRFS and in the end I want to have a file system supporting at least the manual creation of snapshots for backup and test purposes. The data I'm hosting ...
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1answer
1k views

How to get NTFS like snapshot behaviour in BTRFS?

I would like to use BTRFS to host VMs in VirtualBox to be able to use Snapshots without LVM or such. In theory I don't need CoW behaviour all the time because of performance reasons and using ...
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0answers
62 views

VM very slow after snapshot recover

We have here a Citrix XenCenter with few Virtualized machines. So last week we had to recover a VM from an old snapshot (the current one got lost because of a miss configuration in file permissions). ...
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2answers
18k views

Export a VM with the snapshots?

I have a machine with snapshots at different key points in the configuration. Now I need to back up this VM, with its snapshots, to another machine. I tried the "Export" function, but the .ova file ...
2
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1answer
13k views

Taking a VmWare Player snapshot

Just wondering, can you take a snapshot from a free VMWare Player Virtual Machine (VM)? Or is it just for the commercial versions
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1answer
206 views

Why does the default UI menu bar for “Machine->Save State” is unchecked in VirtualBox?

You get to the option of changing the VM's menu bar (aka File menu) UI by right clicking on a VM -> Settings... -> User Interface Is there any special reason for that? Is there a reason not to save ...
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2answers
399 views

Is quiescing a VM during a backup necessary for a consistent snapshot of the filesystem?

Do I need to 'quiesce' a running VM to get a consistent snapshot of the disk at a point in time? I do not care if there are unwritten buffers or if a running application is consistent with the disk. ...
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0answers
35 views

How can you minimise the time to copy development Hyper-V VM's?

How can you minimise the time to copy development Hyper-V VM's? I have a number of Hyper-V VM's which I want to regularly move between two machines ... one in work, the other at home I can shut down ...
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2answers
1k views

Using MySQL and LxD over Btrfs

I have a Ubuntu 16.04 workstation, with an ext4 filesystem. When playing with LxD, I would like to have a lightening-fast snapshoting ability (since my images would usually be big). This ability, in ...
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1answer
68 views

Deleted AutoProtect snapshots and can't boot VM's

I've had 3 VM's running AutoProtect fine for several months but decided it was pointless and wanted to disable it. I also simultaneously wanted to enable Persistent Independent disk access. I wasn't ...