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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.

Snapshots are special files that stores information of a whole system. Users can later restore their computer to an earlier state using a snapshot that they created.

115 questions
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Setting up LVM Snapshot as a backup/restore point in ubuntu

Setting up LVM Snapshot as a backup/restore point in ubuntu. Why? Well, as I see it, with all the great usefulness of Linux, its biggest drawback is with its mixed up way of installing apps. All the dlls go to one directory. All the configuration…
rub
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3 answers

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 documentation: Question: But considering I'm really new…
Ced
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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: How to make a btrfs…
dani
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9
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3 answers

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 clipboard so that I can paste it quickly to my…
Nam G VU
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9
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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 and the persistence option in live CD. Unlike…
totti
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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
Adriaan
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7
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1 answer

Is it safe to delete /var/lib/snapd/snapshots?

I had to reinstall Spotify because of an issue, which is now resolved but something else came up. I was notified that my root partition was filling up and I realised that in /var/lib/snapd/snapshots, there is a file called…
Jasper Nygaard
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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 a snapshot as created by Timeshift (which I have…
user47206
6
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4 answers

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 requirements for snapshots?
saeed
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Ubuntu 20.04 thinks it's out of free space, but it isn't

I started to get "not enough free space" errors when trying to copy files, and at some point I had trouble booting and did a ZFS rollback. I still get space errors despite (according to df and du below) <60% drive space being used. The answer below…
Thomas
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4 answers

How can I automatically create a Btrfs Snapshot before updating my system?

I've installed Ubuntu 20.04 on a Btrfs root-partition for its snapshot functionality. To keep it as simple as possible, I would like to integrate the creation of a Btrfs snapshot into my upgrade-alias command, which currently looks like this: sudo…
Prototype700
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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 don't want to give them the password I currently…
user364819
5
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1 answer

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 snapshots from the system. # sudo lvremove…
user2622247
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5
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1 answer

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 device. I am currently trying to simply create…
S.L. Barth is on codidact.com
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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 the file level - and letting you roll back…
Daniel
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