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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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 in LVM partitioning with a separate HOME partition in another HDD formatted in XFS ("/" in BTRFS), but I'm trying to follow ...
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2answers
81 views

How 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 ...
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155 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
58 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 new what this was) was installed. After the recommended reboot the system restarted without LibreOffice. ...
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1answer
90 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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2answers
341 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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20 views

Snapshot of big file

So I need to repair a VirtualBox. VirtualBox's snapshot function wont help me, as I need to repair the .vdi file on a lower level. So I want to make a snapshot of the actual state, and then modify ...
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1answer
161 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
30 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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163 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 ...
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26 views

How to rollback btrfs snapshot not at the top of the btrfs tree

(I may be using the wrong terms in this question, but I'm trying to use the terminology in the linked page.) The ubuntu wiki explains how to rollback a snapshot that is located at the top of the ...
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67 views

Physical Backup of Maria DB as a snapshot using LVM

I have a SQL database which I want to backup as a snapshot. I want to use LVM to do so, but I am not able to do it. Also my database is not stored in a LVM partition but its located in my /dev/sda2 ...
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52 views

Recover vbox snapshot of recovered ubuntu vmdk

So I have a base image for a linux vmdk I snapshotted as I went along. Now when I was going through and deleting things to free up some disk space I accidentally deleted that original vmdk, thinking ...
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2answers
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Setting up LVM Snapshot as a backup/restore point in ubuntu

since I could not find how to post this as a blog/post/tutorial in AskUbuntu.. I decided on posting it here, were it is best exposed anyhow ... Setting up LVM Snapshot as a backup/restore point in ...
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2answers
660 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 ...
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28 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. ...
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1answer
120 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 ...
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2answers
256 views

Btrfs snapshot marked as deleted

I am using Btrfs v3.12 and each time I delete a snapshot it is not deleted, marked as "DELETED" but the global size of the volume doesn't change. I have never seen that in older version of BTRFS. ...
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2answers
170 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 ...
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1answer
296 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. ...
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1answer
104 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 ...
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2answers
268 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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1answer
459 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 ...
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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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3answers
2k views

Is it possible to take a snapshot of / (or other) filesystem, like in VirtualBox?

Taking snapshot of root partition will make possible to roll back to previous state. This is very helpful when something went wrong and/or data loss occurs. This feature can be seen in VirtualBox HDD ...
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1answer
428 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
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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 ...
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1answer
487 views

Can I Recover The Files in the Directory /usr from a btrfs Snapshot?

Some time ago, I moved the folder /usr to its own partition. Before this it had lived in the / partition which has a btrfs filesystem. Accidentally, I formatted my /usr partition from my Windows XP ...
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469 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 ...
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1answer
2k views

virsh snapshot-create-as gives “unable to execute QEMU command `transaction`”

I have an Ubuntu 12.04 Server that hosts several virtual machines. I want to make backups of these VM's using the snapshot mechanism. The purpose of these snapshots is to have a backup on an external ...
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1answer
69 views

Manage Snapshots

So Ubuntu supports LVM. This in turn supports creating and restoring snapshots of the hard drive. Coming from Windows, this is a highly useful feature for restoring the system to a previous point (In ...
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1answer
503 views

rsync creating target directory with old date

I have a script that automates backups - hourly snapshots of my xubuntu 12.04LTS workstation. It creates a directory named according to the date and time, ie: 20140316-1033, representing 10:33 this ...
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1answer
432 views

snapshot of certain user home directory every 12 hours

I have a build server that builds our comnay product in a continuous build method. the build user is called build (surprise ,surprise, i know :-) ) and most of the data that it uses is simply taken ...
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1answer
947 views

Does “snapshot” command exist like in Linux Redhat? [duplicate]

I used to use "snapshot" command to capture screen shots in the Linux Redhat environment. Is there the same or similar command with ubuntu 12.04 LTS?
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1answer
888 views

how to take Automatic screenshots in ubuntu 12.04 every 2 minutes [duplicate]

I am Ubuntu 12.04 user and I want my machine take automatic screenshots of my work every 2 minutes. So which Software you prefer. Please suggest me.
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3answers
2k views

Going back to a previous Ubuntu state

15 years ago GoBack came out which let Windows users revert changes and restore a computer to a previous state. It did this by imposing a journaling system underneath the OS - at the block level, not ...
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22 views

System image to be loaded to QEMU [duplicate]

Is there any way to take a snapshot of my current system and load it on another computer to QEMU?
2
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1answer
313 views

How to rollback an LVM2 snapshot

What's the equivalent of creating a snapshot and reverting to it later on in ZFS (which is automated and usually hassle-free) in LVM2? I've looked at the progress of this LVM2 feature a while ago and ...
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15 views

How to take snapshot of the Dash or an Indicator menu? [duplicate]

Possible Duplicate: How to take a screenshot of a whole desktop with app menu selection? When we want to take a snapshot of the screen we just press PrintScreen. But this doesn't work in ...
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1answer
9k views

Haw can I take snapshots from a live stream in command line?

I have a security camera and I would like to take snapshots each 5-10 minutes using cron jobs, but I could fined any command line tools, I tried the following: avconv -i rtsp://ip:554/h264_2 -r 1 ...