Questions tagged [cryptswap]

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Increase size of randomly created encrypted swap

Ubuntu 18.04 is by default creating a random encrypted swap during each boot using dm-crypt/Swap encryption. For me, this is creating a 1gb swap but I cannot find where to increase the size of the ...
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1answer
21 views

No prompt for swap partition passphrase after upgrade

I have two encrypted partitions on my system (/etc/fstab contains following lines:) /dev/mapper/sda2_crypt / ext4 errors=remount-ro 0 1 /dev/mapper/sda3_crypt none ...
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0answers
35 views

shared swap problem with Ubuntu 16.04 and 18.04 dual boot

I installed Ubuntu 18.04 alongside an existing Ubuntu 16.04 installation where they share swap space. I read here that this is possible, however, when I boot up Ubuntu 16.04, I get Enter passphrase ...
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0answers
39 views

System files are mounted readonly

My computer wont boot on Ubunutu anymore. I'm asked to enter my passphrase for encrypted disk (cryptswap1), but whatever I enter I get stuck on "Started Hold until boot process finishes up". When I ...
0
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1answer
215 views

cryptswap on SSD

I recently invested in a SSD for my laptop, I bought the Samsung 500Gb 860 Evo, which I choose specifically because the sales blurb talks about improved Linux compatibility with regard to TRIM. I ...
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2answers
734 views

Swap errors in logs with encrypted home, 17.10 Artful Aardvark [closed]

I get this error 1 to 4 times per hour: Failed to start Cryptography Setup for cryptswap1. Unit systemd-cryptsetup@cryptswap1.service has failed. systemd-cryptse crypt_init() failed: Block device ...
10
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1answer
12k views

Warnings about cryptsetup on new Ubuntu 17.10 installation?

I have just downloaded and installed a fresh Ubuntu 17.10 server system. Upon running sudo apt update and sudo apt upgrade I happened to notice these two warnings: WARNING: Setting CRYPTSETUP in /...
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0answers
217 views
7
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2answers
5k views

swapon: stat of /dev/mapper/cryptswap1 failed: No such file or directory

I have an issue with creating encrypted swap. I follow these steps sudo swapoff -a Comment existing swap configuration in /etc/crypttab Comment existing swap configuration in /etc/fstab Re-format ...
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2answers
602 views

Freezing ubuntu 17.04 empty crypttab

I am experiencing random freezes in Ubuntu. I went through several fixes proposed (checking nvidia drivers, etc..) but no solution. I bumped into Ubuntu 17.04 Freezing Issue and tried to change the ...
0
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1answer
506 views

cryptswap1 messages after reseizing root partition

I resized my windows and Ubuntu partitions yesterday to make my Ubuntu partition bigger and all went well, until i rebooted to Ubuntu. I now receive a message upon boot saying: "Please enter ...
0
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1answer
64 views

Occasionally I lose write access to the OS partition and need to fsck it in recovery mode. Why is this happening?

Ubuntu 17.04, fully encypted hdd, home and swap (partition). The first time this happened was after cold reset. And happens occasionally ever since. Once every several days or so. I'm working as ...
4
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0answers
944 views

Swap partition not active

My swap partition is neither mounted nor active. My system does find/recognise the swap partition but that is it My fstab entries: # /etc/fstab: static file system information. # # Use 'blkid' to ...
1
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1answer
918 views

Ubuntu 16.04 System crash when out of RAM

After upgrading to Ubuntu 16.04 from 15.10. I experienced crashes (system not responding, requiring a power off) every time I was running out of physical memory (using up all the RAM).
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0answers
294 views

16.04 Swap partition wants password on startup after Gparted resize

Ubuntu new user here. Booted off the 16.04 USB stick last night and used GParted to resize the primary Ubuntu partition - made it larger using some unallocated space. Now I'm getting a prompt on ...
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2answers
2k views

Why enter passphrase for cryptswap?

After some moving of partitions, my Ubuntu Mate still boots, but strangely it asks for a passphrase for the cryptswap1 volume. I don’t enter anything and hit enter and it works. As I understand it, ...
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5answers
28k 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. ...