5

Otherwise stable Ubuntu machine have an issue since installing that is critical freezing without apparent reasons. There are high probabilities that the issue been caused by NVDIA videocard.

sudo blkid output:

/dev/sda2: UUID="0E5C95E45C95C73D" TYPE="ntfs" PARTUUID="1ef0523b-02"
/dev/sda5: UUID="16EA-1372" TYPE="vfat" PARTUUID="1ef0523b-05"
/dev/sda6: UUID="fe90c52c-c1b7-4845-971e-e7ed5cb45ac4" TYPE="ext4" PARTUUID="1ef0523b-06"

/etc/fstab:

# /etc/fstab: static file system information.
#
# Use 'blkid' to print the universally unique identifier for a
# device; this may be used with UUID= as a more robust way to name devices
# that works even if disks are added and removed. See fstab(5).
#
# <file system> <mount point>   <type>  <options>       <dump>  <pass>
# / was on /dev/sda6 during installation
UUID=fe90c52c-c1b7-4845-971e-e7ed5cb45ac4 /               ext4    errors=remount-ro 0       1
/swapfile                                 none            swap    sw              0       0
/dev/mapper/cryptswap1 none swap sw 0 0

/etc/crypttab:

cryptswap1 UUID=f09a516a-22c0-475c-b749-31ffed5c7bda /dev/urandom swap,offset=1024,cipher=aes-xts-plain64

ls -alh /swapfile:

-rw------- 1 root root 2.0G May  3 13:31 /swapfile
David Foerster
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parakovsky
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1 Answers1

2

There seems to be problems with 17.04 and encrypted swapfiles... and there are some workarounds...

Edit your /etc/crypttab like so:

gksudo gedit /etc/crypttab

Change this line:

cryptswap1 UUID=xxxx-xxxx-xxxx-xxxx /dev/urandom swap,offset=1024,cipher=aes-xts-plain64

To this:

cryptswap1 /swapfile /dev/urandom swap,offset=1024,cipher=aes-xts-plain64

Also make sure that your /etc/fstab contains this:

/swapfile               none  swap  sw  0  0
/dev/mapper/cryptswap1  none  swap  sw  0  0

References:

Ubuntu Desktop 17.04 64bit slow boot

https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1668535

https://bugs.launchpad.net/ubuntu/+source/ecryptfs-utils/+bug/1670336

heynnema
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