Linux Basics (ii)

1. Please answer, 32-and 64-bit what is the difference? When to install 32-bit, and when to install 64-bit operating system? How do I see whether the system is 32-bit or 64-bit?
32-bit or 64-bit refers to the CPU's ability to process data once,the64bit CPU has greater addressing capacity, supports up to 16GB of memory, and 32bit only supports 4G memory. 64 bits should be installed when memory is greater than 4G, otherwise it will be more suitable for 32 bits. Using Commands getconf Long_bit, return 32 is 32 bits, return 64 is 64 bit.


2. What is the role of the swap partition? How do I determine the size of a swap partition?
swap partitions are similar to virtual memory under windows and are used to store data in memory on a virtual piece of space on a hard disk. The swap partition size is typically set to twice times the memory capacity, but the maximum should not exceed 8G.


3. Amin in the tutorial, teach you how to divide the universal partition?
The /boot partition 100M,SWAP partition is twice times the memory capacity and the remaining capacity is allocated to the/root directory.


4. After the system is installed, try the cloning of the VMware virtual machine.


5. Check the information to understand the concept of grub, a brief description.
GNU Grub (GRand Unified bootloader abbreviated as "GRUB") is aGNUthe number of projectsOperating SystemStart the program. Grub is the implementation of the multi-boot specification, which allows the user toComputerwithin the same time with multipleOperating System, and select the operating system you want to run when the computer starts. Grub can be used to selectOperating Systemdifferent on the partitionKernel, which can also be used toKernelPass the startup parameters.


6. How much do you know about time zones? What time zone are we using in China?
time zone is the same time definition used for the region on Earth. In China we use the East 8 area.

Linux Basics (ii)