Monday, May 1, 2017

A job is running for dev-mapper-cryptswap1.device

If you notice that booting Ubuntu takes a long time and you see the following error message on the booting screen after pressing 'ESC',
A job is running for dev-mapper-cryptswap1.device (50s / 1m30s)

This is caused by the system looking for an encrypted swap partition, however most likely you have not created one. Which is normal, now when a lot of RAM is available, and a swap partition is not necessary. This is all due to a misconfiguration entry in the fstab, which tells the system to try and mount the said (non existing) partition.


The solution is to remove or comment out the "cryptswap" entries from /etc/fstab and /etc/crypttab.

This can be done easily by editing the above mentioned files as commenting out the lines that say cryptswap by placing a "#" in front of the matching lines.
sudo nano /etc/fstab
sudo nano /etc/crypttab
The result is shown below in the image, where the lines referring to the cryptswap partition are already commented out.

Reminder: 'CTRL + O' saves the file, 'CTRL + X' exits the nano text editor.

Both fstab and crypttab have an entry for cryptswap1, shown as already commented out

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