Linux

Installation

https://medium.com/@yingshaoxo/become-a-master-of-ubuntu-system-installation-71fbabab7d6b

Recovery or Fix problem for a broken system

1. Go to recovery mode

2. Go to root shell

3. Repair the broken disk: fsck /dev/sbX

4. Reload for writing: mount -o remount,rw /

5. Reset grub:

   sudo su
   fdisk -l
   mkdir linux
   mount /dev/sdX /mnt/linux
   #update-grub
   grub-install --boot-directory=/mnt/linux /dev/sdX
   

Increase the memory

Check the current status:

sudo swapon --show

Create a swap type partition, then modify /etc/fstab as the following:

# Use 'blkid' to print the universally unique identifier for each device

# the system itself
UUID=514a9b60-d9b4-4108-bd7a-97c61b9aafc9 /               ext4    errors=remount-ro 0       1

# the swap partition
UUID=b9420599-3f79-45a9-ba1e-5b1c0f328ad2      none            swap      sw         0        0

# data disk
UUID=F86D2571D5F6048B /media/data               ntfs    errors=remount-ro,auto,exec,rw,user 0       0

fstab can also be used to mount a disk before getting into an OS