pmbr

This article describes the C + + destruction of the MBR code, the source is only destructive, so that the system can not access. For reference purposes only. Please do not use illegal purposes. Source code from the Internet. The specific code is as follows: Copy Code code as follows: #include #include Shellcode wrote a few points to destroy the MBR and not enter the system. unsigned char scode[]= "\xb8\x12\x00" "\XCD\X10\XBD" "\X18\X7C\XB9"; DWORD writembr () { DWORD dwb

partition table, the logical block address is represented by a 32-bit binary number, thus representing a total of 2^32 (2 of the 32-square) logical block address. If a sector size is 512 bytes, the maximum partition capacity of the hard disk is only 2TB.The GPT disk partition structure can be easily represented (basic disks under Windows):GPT partition structureAs you can see, in the first data block of the GTP disk there is also a tag similar to the MBR (Master boot record), called

,maximum 2TB per partition。　　After the disk capacity exceeds 2TB, the start and end location of the partition cannot be represented, and the BIOS will not recognize the partition. The abbreviation for the Gpt:guid partition table (GUID Partition table), meaning "globally unique identity disk partition table", is the standard for the structural layout of the partitioned table of an entity hard disk. In the first data block of the GTP disk there is also a tag similar to the MBR (Master boot record

limits -> get Current SizenewVol="B"currentSize=`diskutil resizeVolume disk1s2 limits | grep "Current" | awk '{print $3$4}'`currentVol=`diskutil list disk1 |grep "disk1s2" | awk '{print $3}'`＃resizeVolume to Rest:diskutil resizeVolume disk1s2 R＃splitePartition:diskutil splitPartition disk1s2 2 JHFS+ $currentVol $currentSize JHFS+ $newVol R GPT partition: Using the diskutil list to view the disk partition status does not reflect the idle space, so you need to use another command to explain:

switched between the Linux and X86 platforms. Currently, VTOC Label cannot do this. LBA0 is a PMBR, which is basically useless in the EFI Label. It is only a legacy product of MBR, But it identifies the disk using the EFI Label.LBA1 is the GPT (Global Partition Table) Header, that is, the Header of the EFI Label. It records the location of the EFI Label, the location of the user region, and the location of the backup label.LBA2 to LBA33 are specific

connection mode. -lps:lpt from the parallel connection mode. -TCPM:TCP/IP Primary Connection mode. -TCPS:TCP/IP from connection mode. -USBM: Automatically enter USB main mode. -usbs: Automatically enter USB from mode. -JL: Logs multicast session diagnostics messages to files. -JS: Sets the maximum multicast value. -ja: Sets the name of the multicast session. -auto: Do not prompt for file names, use default values. -CHKIMG: Check the integrity of the image file. -PWD: Specifies the password. -sk

MBR from having only one partition table limit, GPT uses the last 33 LBA of the disk as another backupStructure:LBA 0:pmbr (512 bytes)For the traditional operating system default boot is MBR, so in order to ensure that the GPT can start only support MBR-only operating system, reserved 512 bytes as a protection MBR, its structure and MBR similar, where the 55AA is necessary, in the original partition table is now stored in the special flag partition,