Which is better to reinstall the mbr, gptgpt partition or mbr: Disk partitioning, reinstall the syst

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If you are proficient in hard drives andoneWhen formatting and partitioning, you will definitely encounter the terms "MBR" and "GPT" when you dual boot the Mac and face the problem of having to switch from GPT to MBRoneThe point is particularly obvious, and you may want to know the difference between MBR and GPT, and useoneRelative to anotheroneWhat are the benefits of it? We will eliminate your doubts in this article.

Disk partitioning You may know that a hard disk can be divided into several Partition problem. The problem is, how does the operating system know the partition structure of the hard disk? This information must come from some places MBR (Master boot record) and GPT (Guid Partition table) play a role here althoughboth of themIn terms of architectureabsenceSame, butboth of themThey all play the same role in management and provide information for partitions in the hard drive.

Master boot record (MBR) MBR is managing hard drivesBisectionThe old standard for partitions and still widely used by many people, MBR is located at the beginning of a hard drive. It stores information about how to organize logical partitions in storage devices. In addition, MBR also contains executable code that can scan partitions of active operating systems and load operating system startup code/procedures.

For MBR disks, you can only have four primary partitions to create more partitions. You can set the fourth partition as an extended partition and create more sub partitions (or logical drives) within it. Since MBR uses 32-bit to record partitions, each partition can only have a maximum size of 2TB. A typical MBR disk layout is as follows:.

MBR has1Firstly, there can only be 4 partitions in the hard drive, with a size limit of 2TB for each partition. For hard drives with a large storage space of 100TBabsenceCan work well Secondly, MBR is the only way to save partition information1Location, if everIf it has been damaged (yes, it is easily damaged), the entire hard drive willabsenceReadability.

GUID Partition table (GPT) GPT is the latest standard for setting Disk partitioning. It uses global1The identifier (Guid) defines the partition and it is UEFI standard1Part of this means that GPT must be used on UEFI based systems (required for Windows 8 secure boot function).

Using GPT, even though most operating systems typically limit it to 128 partitions, it is theoretically possible to create unlimited partitions on a hard drivetakeMBR limits each partition to only 2TB in sizeabsenceSimilarly, each partition in GPT can accommodate a maximum length of 2 ^ 64 blocks (as it uses 64 bits), equivalent to 9.44ZB of 512 byte blocks (1 ZB is 1 billion megabytes).

In Microsoft Windows, the size limit is 256TB

From the GPT table aboveIn the diagram, it can be seen that the beginning of the hard drive has1Main GPTs, ending with1This is why GPT is more useful than MBR. GPT stores the backup head and Partition table at the end of the disk, so that when the primary table is damaged, it can recover it. It also performs CRC32 checksums to detect errors and damages in the head and Partition table.

You can also see the number of hard drives1Sector has1This hybrid setting of protected MBR allows BIOS based systems to boot from GPT disks using boot loaders stored in the code area of protected MBR. In addition, it can also protect GPT disks fromabsenceKnows about the damage of GPT's disk tools and operating system support

Intel Macs uses GPT by default, and you will not be able to install Mac OS X on MBR systems (without any adjustments or hacking). Mac OS X can run on MBR disks, but you will not be able to install most Linux on themThe x kernel supports GPT unless you are compiling your own kernel and have not added this feature, otherwise running your favorite distribution on GPT disk should be no problem.

Attention Required1The thing is, you willabsencehave toabsenceUsing Grub 2 as the boot program for Windows, only 64 bit versions of Windows starting from XP support booting from GPT disks. If you want to pre install a 64 bit Windows 8 laptop, it is likely to be using GPT.

For Windows 7 and earlier versions, the default configuration will be MBRabsenceThe GPT conclusion is that in most cases, MBR or GPT can only be used or converted to GPT if Windows needs to be installed on a Mac or a partition larger than 2TB is required.

Additionally, for newer models of computers using UEFI, it will only support GPT extension reading: ■ ＞＞ Win10 cannot be started, and the Master boot record (MBR) is damaged. Use this method to quickly repair ■ ＞＞absencetenData loss, converting MBR to GPT partition in Win10, the operation is as simple as this

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