Change Swap partition in Ubuntu

April 8, 2020

Create swap and turn it on
add swap entry to fstab
update grub sudo gedit /etc/default/grub
update sudo gedit /etc/initramfs-tools/conf.d/resume
you can get UUID with sudo blkid
if you just update the fstab and not the RESUME values, it'll not boot on the next restart, will give an error about resume device.

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# prepare your partitions
swapoff /dev/sda2
mkswap /dev/sda3
swapon /dev/sda3

# find swap uuid
sudo blkid | grep swap
# OR
sudo echo ls -l /dev/disk/by-uuid | grep sda3 |  cut -d' '  -f8 >> /etc/fstab

# edit swap entry in /etc/fstab
gksu gedit /etc/fstab

# edit the uuid line in /etc/initramfs-tools/conf.d/resume
gksu gedit /etc/initramfs-tools/conf.d/resume

# In terminal, execute this command
sudo update-initramfs -u

you can test your hibernation here, if it doesn't work:

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# check your /etc/default/grub file
gksu gedit /etc/default/grub

# Depending on your version : if a line looks like
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash resume=UUID=<old_swap_partition_uuid>"
# then modify it accordingly; otherwise that's all, you're done

# execute in terminal
sudo update-grub

Change Swap partition in Ubuntu

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