hello all!
My problem is that the MBR (the partition table more precisely) didn't seems to handle huges partitions...
so my question is how the computer store the localisation of these partitions...
Thanks
MBR with huge partitions
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Karig
RE:MBR with huge partitions
Huh? How huge are these partitions???
My understanding (e.g., see http://www.ata-atapi.com/hiwtab.htm) is that the size and location of each partition is stored TWICE in the partition table -- once in CHS format, and once in LBA format. If the partition is larger than 528MB, then the system would ignore the CHS format and use the LBA format. The LBA format stores the partition's size in SECTORS (not bytes), and a sector is 512 bytes long, so the partition table can indicate a partition size up to 512 * four gigabytes = TWO TERABYTES. If the partition is actually, say, four terabytes, then yes you have a problem
My understanding (e.g., see http://www.ata-atapi.com/hiwtab.htm) is that the size and location of each partition is stored TWICE in the partition table -- once in CHS format, and once in LBA format. If the partition is larger than 528MB, then the system would ignore the CHS format and use the LBA format. The LBA format stores the partition's size in SECTORS (not bytes), and a sector is 512 bytes long, so the partition table can indicate a partition size up to 512 * four gigabytes = TWO TERABYTES. If the partition is actually, say, four terabytes, then yes you have a problem