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Questions tagged [snapshot]

Snapshots allow users to create images of a specified filesystem. Use this tag if you have problems or questions about creating Snapshots in Ubuntu.

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73 views

Full ZFS Snapshot on Ubuntu 19.10

I have my default ZFS installation from a clean install of Ubuntu 19.10 and I want a full snapshot of the entire system. NAME USED AVAIL REFER ...
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24 views

How make snapshot of dedicated server?

What software or utility can help make a snapshot of a production Ubuntu system with all utilities and parameters? I would like to be able to simply restore this image with all data and statements, ...
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0answers
21 views

ZFS Snapshot size exceed actual data Size

I have an issue with the ZFS snapshots I'm trying to keep only last 7 days of the snapshots but still, snapshot-size exceeds original data size Do you have any idea? [root@rds1 ~]# zfs list -o ...
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2answers
4k views

What's the difference between Rsync & BTRFS Snapshots

Context: I was thinking about making snapshot for safety reasons, so I downloaded Timeshift but once installed, I have to make a choice between Rsync and BTRFS Snapshots I already read the ...
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1answer
135 views

Continues free snapshot backup manager for ubuntu?

Is there a easy-to-use full-system snapshot manager for ubuntu? Use-case: After a complete system breakdown (e.g. rm -rf /bin) the ability to restore the previous system state. I tried to use rsync, ...
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17 views

Ubuntu libvirt VMs: can I import a snapshot of VM1 onto VM2

I have three VMs running on an UBUNTU SERVER 16.04.5 LTS host OS. The three Guest OS's are all UBUNTU 16.04.5 too. Were using Virtmanager/KVM/libvirt combination to manager the VMs. We will shortly ...
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1answer
69 views

Automatically recover previous state after reboot

I need to install Ubuntu on a system and also need that that system automatically recovers to a default state previously configured. Can you recommend a software that can do that? I can use a live ...
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1answer
286 views

LXD ZFS snapshot creation slows down as number of snapshots increases

Ubuntu 18.04 LTS - LXD Ubuntu launch using loopback ZFS (about 400MB) # lxc launch ubuntu:16.04 test -s ianzfspool (I have one other idle multi-GB container using the same ianzfspool.) I have lots ...
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1answer
2k views

What are the main differences between a system snapshots (Timeshift) and partition images (saved as iso)?

Following comments under this answer of mine I became interested in the question whether the best option for me in order to back-up a system is a partition back-up as described at the linked answer or ...
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7answers
3k views

Take screenshots in background silently for archive purposes

During my work, I often try out tools of different complexity and develop usage and integration scenarios. I use Ubuntu 18.04 LTS. Sometimes if things get really complicated, I am not always sure ...
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1answer
260 views

Timeshift 18.9.1 - Cant add Comments to btrfs snapshots

I often use timeshift snapshots with btrfs (and also snapper on servers). Bot have a comments field for each snapshot. With snapper, i can add a comment as a command-line option. Timeshift also adds ...
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1answer
75 views

hashsum is not available- unable to get source of package [closed]

I want to get the source of package wirehshark for year 2009. I am doing that by editing source.list according to Debian snapshot information. After doing sudo apt-get update. I tried: sudo apt-get ...
2
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1answer
360 views

How to repair a broken apt-btrfs-snapshot in kubuntu 18.04?

After installing Kubuntu 18.04 on a Thinkpad W520 on btrfs over LUKS I came to the activation of the automatic APT snapshots. Here it shows up that any call of apt-btrfs-snapshot crashes, complaining ...
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1answer
43 views

take snaps when entered wrong password

hi a i am using ubuntu 16.04 LTS if anybody can help me with this, i want my webcam to take snaps of the person who is trying to enter my computer.it would be best if someone try to explain it in ...
0
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1answer
361 views

qemu/kvm snapshot with non-usb device

I have a fully-working QEMU virtual machine (ubutu host, XP guest). I cannot save the machine state into a snapshot because I have a PCIe card attached to the VM. The error message says «Requested ...
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0answers
91 views

Screencloud stopped working properly on multiple screens

I have been using Screencloud for years as the main screenshot and snapping tool on Ubuntu. It has worked fine until I have update to Ubuntu 17.10. Now, it started "switch desktops" when I try to ...
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3answers
920 views

Why the @ in Btrfs subvolume names?

Fairly short question. Is there any technical reason for having an @ in the name of a subvolume of a Btrfs? What's its function, benefit or cause of problems? What is the best practice? Examples: ...
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1answer
74 views

Super slow mksquashfs involving Wine?

My Ubuntu install is on SSD drive ext4 format with LVM. I'm making a 'backup' by: Creating a snapshot, then using mksquashfs to copy the snapshot to an external drive. The problem is after a short ...
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0answers
311 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
53 views

How to set Unity directly delete files on sda without possibility of recycling [duplicate]

I need to delete two Oracle VirtualBox snapshots from /dev/sda because it is running out of space. Unfortunately there is even not enough space to remove them by VirtualBox Manager. It seems to me it ...
3
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1answer
373 views

What User Space tools support Btrfs functionality (e.g. clone instead of copy)

I've recently been starting to work with Btrfs on Ubuntu, and have it setup as my root filesystem, as well as home filesystem. I have it configured the way apt-btrfs-tools expects, and that is working ...
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0answers
742 views

Snapshot for Ubuntu 16.04 LTS

I would like to receive recommendations on the most ideal package that can create "restore points" snapshots for Ubuntu 16.04 LTS Server. Was trying systembackbut it is not being maintained any more. ...
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0answers
59 views

Space Efficient Media Backup

I have 6.8TB of Media I would like to backup. I have an extra external hard drive 7.3TB. Is there a way to make a space efficient incremental backup? I will be adding media and would like to be able ...
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0answers
85 views

snapshot system for physical machine with device-mapper overlay

I'm trying to create a snapshot system on my physical development machine comparable to virtual machine snapshots. I do lots of experimental stuff that I might have to revert afterwards, but I cannot ...
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2answers
3k views

How to let non root user take ZFS snapshot?

I am trying to let a non root user create zfs snapshots. I've created a permission set and given the appropriate user the privileges defined in it: root@computer:~# zfs allow homepool/myuser ---- ...
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1answer
370 views

Snap2html for Ubuntu?

There is a wonderful program created by rlvision.com called snap2html. It creates a very intuitive and visual snapshot of all the files and directories in a certain directory. I'm desperately looking ...
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1answer
1k views

How do I find out how full an lvm snapshot really is?

Background info: I have an unstable system and for a long time have not been able to pinpoint the problem. I have now done a clean install and am adding packages one by one leaving ample time in ...
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3answers
4k views

Shutter snapshot tool to copy image to clipboard

I'm a new Ubuntu Desktop user and looking for snapshot tool to use as alternative to Greenshot in Windows. I found Shutter is the one. Though I want to copy the image in Shutter built-in editor to ...
6
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2answers
17k views

Making a snapshot of ubuntu?

I installed ubuntu without LVM. Is it still possible to make a snapshot of it? If so how can I do it? Keep in mind I never made a linux snapshot before. Ubuntu 16.04 LTS, Kernel 4.5
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1answer
1k views

Is there a way to restore a Linux system to a previous state Using BTRFS? as in Windows restore points

Windows restore points... How to have the same functionality in Ubuntu ? With existing tools like Deja-Dup I have tried to set up snapshots and got trouble following the instructions. Is there a ...
2
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1answer
412 views

How to use snapshots with BTRFS in Ubuntu along with a separate HOME partition

My goal is to make snapshots while upgrading software. I installed Ubuntu primary partitions and Using MBR with Legacy BIOS with a separate HOME partition in another HDD formatted in XFS and root in *"...
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2answers
202 views

Can someone determine my previous sudo password was if they have access to my machine and my new one?

I have found a bug and the developers to whom I reported this bug to want me to send them the VM with the bug. They want me to send them the password and the VM in its current state (a snapshot). I ...
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1answer
237 views

LibreOffice removed (&uninstallable) after Ubuntu 14.04.4 snapshot update

After having accepted the newest updates for Ubuntu 14.04 LTS a "snapshot" (didn't know what this was) was installed. After the recommended reboot the system restarted without LibreOffice. Re-...
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1answer
1k views

Foxit Reader | Unable to find snapshot tool

I just discovered that the awesome Foxit Reader is available for Ubuntu :D. I also discovered that the very handy snapshot tool is NOT in the Ubuntu version :(. ALthough the manual refers to the tool ...
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2answers
126 views

Keeping track of filesystem changes

I am looking for a way to find changes made to filesystem on Ubuntu. Like so: make some kind of a snapshot i.e. scan given folder (files, subfolders), save files names and sizes. install whatever, ...
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1answer
1k views

Boot to Btrfs snapshot in Ubuntu

OpenSuse recently implemented an GRUB entry that allows you to boot directly into a previous Btrfs snapshot of your root. Is there any way of bringing it to my Ubuntu installation? Such feature would ...
1
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1answer
412 views

How to take snapshots with LVM?

This time when I installed Ubuntu off my LiveUSB I ticked the option to also install LVM for easier snapshot taking and partition resizing. But now even after looking in the LVM man page, I am still ...
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0answers
92 views

fast/easy file system snapshot

I am working in a lot of team projects and usually team members come to my computer in an attempt to help and they ruin my workspace. My workspace for a project spans folders in different locations. ...
1
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1answer
180 views

btrfs - Need help understanding it correctly

After spending hours and hours i cannot manage to understand btrfs enough to use it the way i want. In the end my goal is simple: Having a clean fail-proof solution for os upgrades. So i've exactly 3 ...
2
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2answers
462 views

How to make a custom snapshot of non-system related stuff and be able to restore without reboot?

I've looked through the past threads but couldn't find anything. I'm looking for the tool or solution that makes a snapshot of a system state (it doesn't have to be everything, but I could specify ...
3
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1answer
2k views

Unable to mount secondary BTRFS filesystem to specific subvolume

So I'm trying to wrap my head around BTRFS and set up my fileserver using BTRFS filesystems. Here is my setup: /dev/sda1 : BTRFS filesystem, contains @, @home subvolumes mounted to / and /home. /dev/...
2
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2answers
2k views

How much space is required for snapshots in ZFS?

How much space do snapshots use in ZFS? I created a pool and want to create a volume. I don't know how much space snapshots will occupy. Is there any way or formula exist to compute space ...
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2answers
2k views

How to recursive delete btrfs snapshot?

How can I delete a snapshot that contain in itself other snapshots? The normal sudo btrfs subvolume delete will give a error.
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1answer
1k views

Is it a good idea to restore a btrfs snapshot with rsync?

Is it safe to use rsync to restore a btrfs snapshot? Just to give a example rsync -ax /home/snapshot/my_user_folder /home/my_user_folder where /home is my home folder and /home/snapshot is my ...
0
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1answer
232 views

kernel.yama.protected_nonaccess_hardlinks is an unknown key

I want to clear the snapshots of Cassandra using : nodetool -h localhost -p 7199 clearsnapshot but it gives me an exception : Exception in thread "main" FSWriteError in /var/lib/cassandra/data/...
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0answers
99 views

How make LVM Snapshots to back in time, in case of bad or non working instalation

I have LVM in my ubuntu installation and i want to know how I can make a snapshot of the whole system, if possible, for example if I install a experimental software and i don't like it, go back in ...
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2answers
2k views

LVM: unable to create snapshot due to failed merge of prior snapshot

I inadvertently created a situation where I deleted an LVM snapshot that was pending a merge (yes - bonehead move). Now I can neither finish the merge nor create a new snapshot on the original logical ...
2
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1answer
606 views

Ho to make btrfs snapshot in Ubuntu 14.10?

I have installed Ubuntu 14.10 with the / partition as btrfs, I want to make a snapshot of the subvolume /home occasionally. How to I proceed?
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1answer
13k views

Proper way to remove an active / inactive LVM snapshot

I have created a sample ruby script file for removing extra LVM snapshots from the system. For removing LVM snapshot, we are using lvremove command. This command is working fine and we can remove ...
2
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2answers
2k views

BTRFS cannot delete snapshot - operation not permited

I cannot delete a the btrfs subvolume "2014-07-28" which is a snapshot of the "@" created by the kubuntu installer to serve as the kubuntu root. teneighty@teneighty-MS-7924:/$ sudo mount -o subvolid=...