At present, most of the hard disks on the computer adopt the MBR partitioning scheme. We have discussed MBR disks in detail. Now let's talk about GPT disks. GPT full name globally unique identifier partition table format (guid Partition Table) is derived from the disk partition architecture used by EFI (extensible firmware interface. Now let's explain it in the most straightforward language --
Comparison:An
In linux, we can convert a large-capacity disk to the GPT format. Because the GPT format disk is equivalent to the 4*16 bytes of the four partition tables originally reserved in the MBR disk, only the first 16 bytes are reserved. Others are similar to extended partitions, the real partition table is 512 bytes later, so there is no limit on four primary partitions for the
Most of the computers preloaded with WIN8 are in the new version of the UEFI firmware + GPT format disk, which has the advantage of enabling additional features such as safe booting, and support for more hard disk partitions and larger partition capacity. Here we describe how to create an OEM partition on a GPT hard drive in a Win8 system.
To create an OEM partition:
1. In the DiskPart command
In Linux we can convert a large-capacity disk into a GPT format first. Because the GPT-formatted disk is equivalent to the 4*16 byte of the original MBR disk that originally retained 4 partition table, only the first 16 bytes are left, others are similar to extended partitions, and the true partition table is after 512 bytes. So there are no four primary partitioning restrictions on
, similar to an extended partition, the realPartition Tablein the +bytes,GPTthe disk does not have a limit of four primary partitions. Butfdisknot supportedGPT, we can usepartedto theGPTdisk operations. Partedpowerful, available in both command-line and interactiveNote: parted can only partition empty disks that have not made any partitions.Enter parted at the prompt to enter interactive mode , If there are multiple disks, we need to run select sdx x as disk, to make disk selection Here's how:#
USB disk Boot installation RHEL5.8 prompt: Boot partition is located in a GPT partition scheme error prompt, English: "Your boot partition is on a disk using GPT partitioning scheme but this Machin E cannot boot using GPT, unable to continue the installation operation.
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Error reason: The hard drive format wa
Now the hard drive is getting bigger, and the original MBR partition, more than 2T hard drive will not be recognized, only use GPT way, but GPT if the original BIOS is unable to boot system, but if your motherboard support EFI, then you can use the Gpt+efi way, Support 3T large hard drive installation system.
Important, installation system may cause your compute
Win7 + Ubuntu 14.04.1 64 dual system installationBackground: My notebook before the system is window 7 + Ubuntu 14.04.1, with UEFI boot system. The installation process is first installed Win7, and then installs Ubuntu. It was a very harmonious match, but because when the Win7 was loaded, format the hard disk as GPT (globally Unique Identifier Partition table) partitioned table (with Diskgenius lattice in the PE system), and checked the MSR partition
I. The operating system startup principle on the UEFI motherboard draws a rough picture without any text descriptions.
Ii. Installation Practice record 2.1 physical environment Machine Type: desktop machine model: Lenovo thinkcenter m4350t machine features: pre-installed Windows 8, the motherboard supports UEFI and secure boot, hard disk 500 GB, using GPT partition. This motherboard is compatible with the legacy BIOS (legacy boot) boot and can be set
second hard disk is sdb2.
* Partitioning is not a physical function of a hard disk, but a software function.
* Mainstream partition mechanisms are divided into MBR and GPT.
MBR is the most widely used partition mechanism in PC architecture computers.4. MBR
4.1 MBR (Master Boot Record) is a traditional partitioning mechanism, which is applied to the vast majority of PC devices using BIOS Boot (Apple uses EFI ); many Server servers support BIOS and EFI
1, the number of partitions, GPT seems to be able to support unlimited partitions, but only 128 on window, and the GPT partition is not divided into primary partition, logical partition, it can be understood that all are primary partitions, it is equivalent to allow you a partition of a system, 128 systems. And this is the MBR can not do, MBR only have four systems, if you want more than four partitions, it
Tip:
Your Boot partition is on a disk using the GPT partitioning scheme but this machines cannot boot using GPT.
After xenserver is installed, You need to reinstall centos 5.x. When partitioning, the system reports the following prompt: GPT is not supported and cannot be partitioned. This is a successful experience. I found it online:
Use the shortcut key CTRL
MBR (Master Boot Record)1. Master boot record, traditional partitioning mechanism, applied to most PC devices using BIOS2. MBR supports 32-bit and 64-bit systems.3, MBR supports a limited number of partitions.4, MBR only support less than 2T of hard disk, more than 2T of hard disk will only use 2T space (there is a third-party solution).5, MBR is often used for personal PC disk partition.GPT (GUID Partition Table)1, the Globally unique identity partition table, is a relatively new partition mech
Nowadays, hard disks are very cheap and the capacity is N Large. Common dos partition tables cannot meet the needs of large hard disks.
Dos partition table:
1. Only a limited number of partitions are supported.
For historical reasons, only 64 K (4x16 k) is reserved for the primary partition, that is, 4 primary partitions; 384 k (24x16 k) is reserved for the logical partition ), that is, up to 23 logical partitions can be created.
2. Hard Disk Partitions larger than 2 TB are not supported
This i
In the Lenovo computer pre-installed WIN8 system, the disk format is GPT format, if we want to install the earlier WIN7 flagship system or XP system, in addition to changing the BIOS to start the way, but also need to change the disk format, then how to change the GPT format for MBR? There are many kinds of ways, You can use partition tools such as Diskgenius, or use the WIN7 system installation disk to ope
Https://wiki.archlinux.org/index.php/Unified_Extensible_Firmware_Interface#EFI_System_PartitionHttps://wiki.archlinux.org/index.php/Beginners ' _guide_ (English) #Grub_2Https://wiki.archlinux.org/index.php/Beginners%27_guide_ (English)Http://www.linuxsir.org/bbs/thread379335.html what to consider in a virtual machine test using the full Btrfs + GPT process [share]Https://wiki.archlinux.org/index.php/Unified_Extensible_Firmware_Interface#EFI_System_Par
When the USB flash drive is started and rhel5.8 is installed, the following error message is displayed: "your boot partition is on a disk using GPT partitioning scheme but this machine cannot boot using GPT", unable to continue the installation.
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Cause of error: the hard disk format was changed to GPT partition when vmwar
using the Windows original CD-ROM installation system, Microsoft Rules: Must "Uefi+gpt" or "LEGACY+MBR"! Although the previous said "Uefi+mbr" can still start the system normally, but recommended by Microsoft to install the method, Otherwise it will bring trouble! Microsoft does this limit must not be for nothing! at present, many computers are uefi and legacy coexistence, both can switch. "GPT" and "MBR" r
There are two ways to convert a disk in the form of a disk partition into a GPT partition form for the MBR (Master boot Record), the first from a command prompt that is brought from the system, and the second to use Third-party software, which describes two types of hair:
Important: Back up the data on your hard disk before you operate.
Command law:
Value Description
List volume displays a listing of basic and dynamic volumes on all disks.
Select
each partition. This MBR code is often referred to as the bootloader. because the MBR partition table has a maximum addressable storage space of only 2Tb (2 + x512 bytes). Therefore, in the case of large hard disks, the MBR partitioning method is gradually replaced by the GUID partition table. UEFI---GPT new UEFI, full name "Unified Extensible Firmware Interface" (Unified extensible Firmware Interface), is a standard that describes the type inte
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