Install Ubuntu using a USB flash drive under Ubuntu

make USB drive Boot 1. Installing the USB drive Maker tool

sudo apt-get install UNetbootin

Use sudo df -lcommand to view the USB drive letter, this is assumed to be/DEV/SDB12. Format the USB drive

• sudo umount /dev/sdb1uninstalling a USB flash drive using commands

• sudo mkfs.vfat /dev/sdb1format the USB flash drive in FAT32 format using the command

3. Use UNetbootin to make USB drive boot, such as

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4. Set the USB drive to boot

Restart your computer to enter the BIOS settings USB drive

Install UBUNTU1. After booting the USB stick, select Install UBUNTU2. Select language

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3. Preparing to install Ubuntu

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4. Select the installation type

Select other options to partition yourself
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5. Manual Partitioning

• /swap swap partition, generally as large as your memory, swap partition, logical partition (swap partition when the physical memory of the system is not enough, the hard disk space to release a portion of the space for the current running program to use. The freed space may come from programs that have not been manipulated for a long time, and the freed space is temporarily saved to the swap partition until those programs are run and the saved data is restored to memory from the swap partition. ）

• /root partition, the general choice of 15G, Ext4 file system, logical partition, if the first five except the introduction of the partition is not independent division of other partitions, it is attributed to this partition,

• /boot partition, 150M is good (can also be larger to avoid unnecessary trouble) Ext4 file system. This partition of the primary partition contains the kernel of the operating system and the files to be used in the process of booting the system.

• /usr partition, 100 g (see PC HDD), EXT4 file system, logical partition, this partition is the system and user software installation location, partition size look personal situation, recommended not too small

• /home partition, the remaining space is divided into this partition, EXT4 file system, logical partition, user folder

The following partitions can be divided into

• /var/log partition 1G Ext4, logical partition, System log partition

• /tmp partition 5G EXT4, logical partition, temporary file partition

• /OPT partition 1G Ext4, logical partition, add-on storage place

• /bin partition Ext4, logical partitioning, rarely partitioned partitions, storing standard system utilities.
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6. Set user name and password clean up after installation is complete

Delete LibreOffice

sudo apt-get remove Libreoffice-common

Delete Amazon

sudo apt-get remove Unity-webapps-common

Remove the basic unused self-brought software

sudo apt-get remove Thunderbird totem Rhythmbox empathy Brasero simple-scan gnome-mahjongg aisleriot gnome-mines Cheese TR Ansmission-common Gnome-orca Webbrowser-app Gnome-sudoku landscape-client-ui-install

sudo apt-get remove onboard deja-dup

Disabling guest users requires a restart

sudo sh-c ' printf ' [seatdefaults]\nallow-guest=false\n ' >/usr/share/lightdm/lightdm.conf.d/50-no-guest.conf '

Re-enable guest users, need to restart

sudo rm/usr/share/lightdm/lightdm.conf.d/50-no-guest.conf

Some handy shortcut keys

• CTRL + H: Show hidden files

• SUPER + W: Small window shows all Programs

• CTRL + SUPER + D: Show Desktop

• CTRL + ALT + T: Open terminal

Install Ubuntu using a USB flash drive under Ubuntu