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 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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326 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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615 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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253 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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477 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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25 views

Are there LVM utilities that come in Ubuntu?

I installed Ubuntu in LVM partitioning but and I'm trying to follow this wiki and Whe I try to do pvcreate it gives me this : sudo pvcreate /dev/sda1 /run/lvm/lvmetad.socket: connect failed: No ...
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108 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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132 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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102 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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477 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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53 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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443 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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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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19 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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25 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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56 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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47 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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144 views

Backup lvm thin pool metadata

Usually, if you want to backup a volume, you create a snapshot and then dd it to some location, but it doesn't work with pool metadata: # lvcreate -s "vg_oktestdb1/pool_tmeta" --name metasnap -l ...
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Ubuntu (guest) freezes after a snapshot

My host OS is windows 7 and i have ubuntu 14.10 as a guest on my virtual box(v4.3.26). I took a snapshot of ubuntu before I began an installation, ever since then, when I save machine state and ...
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virtualbox : delete first snapshots and keep their childrens

I've some VM in virtualbox, and for one virtual machine (VM) I've got many snapshots, which take a lot of place. The snapshots all have only one parent, they are all the son of the preceding snapshot. ...