Questions about encryption such as home folder encryption, partition encryption and file encryption.

learn more… | top users | synonyms (1)

0
votes
0answers
88 views

Remove encryption of Ubuntu partition

I installed Ubuntu 14.04 a few months back. While installing, I had enabled the option of disk encryption, because of which I have been able to login to my system only after entering a passphrase in ...
0
votes
0answers
21 views

recovery of files from the home folder to delete the kernel by accident

I'm starting to use linux and decided to use ubuntu 14.10 mate! one of them was that of an innocent I ended up deleting my kernel system in order to increase the space in the folder/boot ja that my ...
0
votes
1answer
416 views

How do I DISABLE home directory encryption during Ubuntu 12.04 installation?

When attempting to install Ubuntu 12.04 from a CD, there is an option displayed for "Encrypt my home folder". The option is checked (enabled) by default, but it is grayed out, so it is impossible to ...
2
votes
1answer
2k views

Dual Boot Ubuntu full disk encrypted but Windows untouched

I have been dual booting Ubuntu and Windows 7 for a while now. In the past, I have used the "encrypt home folder" option to add (some) security to my installation (ie. now no one can easily steal my ...
1
vote
0answers
45 views

Ubuntu Studio 14.04.2 LTS AMD64 boot issue

Fresh install, no dual boot, 2TB brand new HDD, 4GB RAM, brand new Toshiba Satellite NB15T, LUKS encrypted drive, encrypted home folder as well, MD5 checksum's verified, default installation (and ...
0
votes
0answers
66 views

Problem with Ubuntu 15.04 Install switched encripted areas of of my main disk

During install the only area of my disk I requested encrypted was my home folder. What actually happened was home folder is not encrypted and the rest of the disk is encrypted by a blank password. ...
1
vote
0answers
30 views

Issues installing updates with disk encryption

I am quite new to linux and have just installed Kubuntu 15.04. I have been trying to install available update packages using the MUON Update Manager, however when the progress bar gets to about 25% ...
1
vote
2answers
720 views

Ubuntu 14.04.1 encrypt home directory

I am trying to encrypt the home directory of a user. I have found this guide on howtogeek. I have then tested the guide on a virtual machine with a fresh install of Ubuntu 14.04.1 (which had all the ...
2
votes
0answers
44 views

New Ubuntu 14.04 installation with full disk encryption prompts for passphrase in console

My previous Ubuntu 14.04 installation launched to a graphical screen with the Ubuntu logo and a text prompt under it for passphrase insertion. I did a distro upgrade, which broke my installation, so I ...
0
votes
0answers
234 views

LUKS encryption over ecryptfs

My /home partition under Ubuntu is default encrypted (ecryptfs), but now the system isn't mounting it. Even worse, I don't even find the folder after encrypting for a second time with LUKS. This is ...
0
votes
0answers
58 views

Plymouth script with LUKS Encryption

ive been hacking round with Plymouth themes on my Ubuntu 12.04 install and have noticed some strange behavior that I can't seem to explain (or solve) Note. I have two drives - both are encrypted with ...
0
votes
0answers
72 views

How to encrypt dual-booted Xubuntu?

I'm running a dual-booted Windows and Xubuntu system. I need full partition encryption, but only on the Xubuntu side. Is it possible to set it up without loosing any data? Which method is the safest ...
7
votes
2answers
595 views

How to install Ubuntu with both disk encryption AND SSD caching

I'm using Ubuntu in a corporate environment, and our security policy states that we have to use full disk encryption. I've also got a laptop with a 32GB mSATA SSD and 750GB of spinning rust. My ...
2
votes
1answer
403 views

What's the best practice for backing up encrypted Ubuntu home dir?

After installing Ubuntu 12.04 and electing to encrypt my entire home directory, I am now wondering what the best way would be to back up the data here. I backed up the rest of my file system with ...
0
votes
0answers
85 views

Lubuntu Persistent LiveCD with Encrypted Home

I've done a lot of searching on this topic but have yet to find a definitive solution/answer that is easy to follow. I have a 256GB USB3.0 stick, which has two partitions (small FAT32 partition with ...
2
votes
0answers
21 views

Failing to ask for crypt password on boot forces emergancy boot

I'm running Vivid on HP Pavilion 15. The Problem? When I boot the system, I get the purple screen that checks the disk. If I skip or wait till the end, I am pushed into emergency boot. (it should ...
1
vote
1answer
324 views

Unable to ssh remote unlock encrypted ubuntu server 15.04 using dropbear/initramfs

So I'm trying to set up a brand new Ubuntu 15.04 headless server with full disk encryption and remote unlock capabilities. I've done this successfully on a raspberry pi running Raspbian-Wheezy, and ...
66
votes
6answers
29k views

How to stop using built-in home directory encryption?

I have a new Ubuntu 10.04 installation with encrypted home directory (using the built-in encryption offered by Ubuntu installer). What's the easiest way to stop using encryption? (I.e., to decrypt ...
0
votes
0answers
14 views

How to use encrypted windows partition in ubuntu 15?

I've installed Ubuntu over windows 8 and I cannot access a partition that was previously encrypted in windows 8. I don't have access to windows 8 anymore since I've not installed Ubuntu alongside it. ...
1
vote
0answers
250 views

Being dropped to emergency mode after upgrading to 15.04 with encrypted hard drive

I had installed ubuntu 14.10 with encrypted lvm and uefi mode on my hard drive. There are two hard drives which are encrypted. The first contains the root file system and the second contains a sharing ...
11
votes
2answers
11k views

How do I mount an encrypted /home directory on another Ubuntu machine?

I've done something a bit, well, strange. I installed Ubuntu 12.04 directly onto a USB thumb stick, encrypting the /home directory as given the option during the install. The filesystem is btrfs, I ...
0
votes
0answers
10 views

No encryption options in Disks

When I start Disks (former Disk Utility), I can see my USB pen drive in the list of devices. However, regardless of whether it's mounted or unmounted, if I go ahead with the formatting I don't get ...
0
votes
0answers
13 views

cryptswap1 on top of Encrypted LVM

"Encrypt the new Ubuntu installation for security" appears to encrypt my /dev/sda3 device as sda3_crypt, with LVM volumes for root and swap. After installation, /etc/crypttab has entries for ...
0
votes
1answer
50 views

Encrypted swap partition not available

How should I correctly set up my encrypted swap partition? How can I ensure that the setup persists? I'm running 14.04 using encrypted home folder. I noticed that occasionally my machine would ...
1
vote
1answer
905 views

Install Ubuntu 15.04 with full disk encryption, but without swap partition

I have a laptop with 16GB of RAM, but SSD is only 64GB. I need to install Ubuntu 15.04 with both standard options - "Encrypt the new Ubuntu installation for security" and "Use LVM with the new Ubuntu ...
0
votes
0answers
42 views

Ubuntu fresh Luks/LVM Install “Operative System not Found”

I have a Dell Inspiron 7720 with two hdd, 1st: 1Tb and 2nd: 300Gb. The first hdd have Windows 8.1 Pro and i'm trying to install Ubuntu 14.04 LTS in the second. I made a fresh and clean install of ...
3
votes
2answers
3k views

Ubuntu 12.04 Keyring broken "signature not found in user keyring perhaps try the

So, for some reason i cant suddenly log into my main account, so i did alt+ctrl+f1 and saw the message "signature not found in user keyring perhaps try the interactive 'ecryptfs-mount-private'" I can ...
2
votes
0answers
124 views

After upgrade to 15.04 system does not boot from encrypted disk

The system was installed with LVM encryption, so it used to ask for a passphrase before booting. Now, the boot process fails with the following: Gave up waiting for root device. Common problems: - ...
1
vote
1answer
259 views

System freeze while starting a Vagrant box via VirtualBox on Ubuntu 15.04

I'm starting a virtual machine with: vagrant up The provider is VirtualBox. After few seconds the system freezes and I can't do anything. Only a hard reset is possible. Unfortunately I can't see ...
0
votes
0answers
37 views

Encrypted DVDs Do Not Autoplay

I have installed Ubuntu Mate 15.04. When I insert an audio CD or a non-commercial DVD into the drive a window will appear asking me what I want to do. I know how to change the settings to cause the ...
2
votes
2answers
107 views

Optimal Ubuntu setup for taking advantage of Clonezilla?

I'm having a problem regarding the cloning of my disk; Clonezilla requires as much free space as the size of my original drive. So, I decided to re-install Ubuntu manually following the instructions ...
3
votes
1answer
70 views

What's a good way of protecting password on a plain text executable script?

I am managing a few dedicated game servers on a Ubuntu server 14.04 machine. These games are downloaded and updated by the SteamCMD tool, which for some games, requires login from the command line ...
0
votes
1answer
169 views

Encrypted Ubuntu installation won't boot

I just did a fresh install of 14.04 LTS, choosing the encrypted option. Everything seemed to go fine, and at the end it told me it needed to reboot to complete the installation. When I clicked OK, ...
0
votes
0answers
84 views

Stuck on “Loading initial ramdisk” after live cd change on root filesystem

I am running Ubuntu 14.04 LTS Server with the newest Updates in a Virtualbox VM. It has EFI boot on a 512 MB Partition, /boot on a 300 MB ext4 partition and / on a luks encrypted 7GB ext4 ...
1
vote
1answer
38 views

partition not recognized drive wont mount

I have a wicked virus on my windows drive that can't be located for some reason. Virus scans always lock up the PC which always ends in a crash. I installed Ubuntu on my external drive to operate the ...
9
votes
4answers
22k views

How to change the password of an encrypted LVM system (done with the alternate Installation)?

I installed Ubuntu 11.10 with the alternate CD and encrypted the whole system (except boot) with the encrypted LVM. Everything works great as before, but I would like to change the password of the ...
0
votes
0answers
166 views

Ubuntu server 14.04.02 unresponsive with most of the commands (Ping, etc…) after apt-get dist-upgrade

[EDIT] Seems solved, problem with name resolution suddenly disappeared [/EDIT] I have a Ubuntu Server 14.04.02 on a private server with generic kernel installed, that I can still SSH into. Welcome ...
2
votes
0answers
62 views

Recover deleted full disk encryption partition

What I have: I have Xubuntu 14.04 installed on 500 GB HDD. The HDD consists of: Some small partition that seems to be for some EFI stuff a partition that holds /boot some free space at the end of ...
1
vote
1answer
32 views

plain text can be enctypted like password in vi editor? [duplicate]

Can anyone tell me, How to plain text can be enctypted like password (********) in vi editor or using vi editor or any other method ?
1
vote
0answers
81 views

default ubuntustudio 15.04 install crypto passphrase works fine except for swap

I did a fresh install of ubuntustudio 15.04 (64b), with activated encryption. I sometime get a request to provide a passphrase for ubuntu--studio--vg-swap_1, for example if I execute sudo service ...
1
vote
2answers
46 views

Mistakenly encrypted partition while installing Ubuntu

My friend has tried to install Ubuntu on her USB (with live-usb) and used LMV encryption for the USB. Right now, it is not possible to load Windows normally. It seems she mistakenly encrypt her ...
4
votes
4answers
5k views

Swap partition not recognized (The disk drive with UUID=… is not ready yet or not present)

I think I had an encrypted swap partition, because I chose to encrypt my home directory during the installation. I believe that's what the line with /dev/mapper/cryptswap1 ... in my /etc/fstab is all ...
16
votes
5answers
12k views

Swap not working on clean 14.04 install using encrypted home

Update 3: I decided to reinstall the system from scratch to remove any old cruft lying around since I had been experiencing some other issues after the upgrade aswell. Howver, this issue persisted. ...
3
votes
1answer
131 views

Can't access my encrypted home folder

My problem is the following: I decided to do an apt-get dist-upgrade. At first it said that it had to remove a lot of programs, which seemed a little suspicious, but I trusted the upgrade system. I ...
1
vote
2answers
100 views

The safest way to backup GPG and SSH keys

I have, in Ubuntu 14.10, generated a public and private GPG and SSH key set, but I am now needing to do a fresh install and don't want to lose them but don't just want to put them as text files on a ...
1
vote
1answer
61 views

How to migrate ubuntu to an ssd when /home is encrypted with ecryptfs?

I discovered this topic 'How to migrate an encrypted LVM install to a new disk' which was useful for creating lvm volumes on my new SSD. Nevertheless, my original Ubuntu 14.04 has just a /home ...
1
vote
1answer
42 views

12.04 to 13.10 Can it remove encryption?

I installed Ubuntu 12.04 on my primary computer, and I absentmindedly selected "encypt home directory" I read a few methods to de-encrypt it, but they didn't work so well (And seemed overly ...
1
vote
0answers
22 views

ecryptfs-recover-private doesn't accept my login passphrase [duplicate]

Ubuntu Live DVD (14.04 or 14.10) $ sudo ecryptfs-recover-private INFO: Searching for encrypted private directories (this might take a while)... INFO: Found ...
22
votes
6answers
9k views

Is there a tool that can add a password to a PDF file?

I've found lots of info on decrypting PDF files, but none on encrypting them. What tool can do this for me? Edit: There are two good answers below, but in my specific case the PDF was a scan, not a ...
1
vote
0answers
59 views

Getting an “Enter Passphrase” box at boot

I have upgraded from 14.10 to 15.04 today. On 14.10, I did have my home folder encrypted. I have never had to enter a passphrase before (except the initial setting of it). Right after upgrading to ...