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 Post subject: Can the sector count in a FAT32 partition be odd number?
PostPosted: May 16th, 2024, 4:10 
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Joined: April 18th, 2014, 13:07
Posts: 7
Location: Canada
Hi,

I create a 256MB partition on hard disk. The format it to FAT32, with 4096 cluster size.

THen I check the Boot sector of the partition, and find the the following parameters:

Sector count: 530145
Reversed Area Size: 38
FAT Count: 2
FAT Size: 517
Sector per Cluster: 8

In such a case, (530145 - 38 - 517 * 2) is not a multiply of 8 sectors. Is that correct for a FAT32 partition?


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 Post subject: Re: Can the sector count in a FAT32 partition be odd number?
PostPosted: May 17th, 2024, 13:29 
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Joined: September 8th, 2009, 18:21
Posts: 15714
Location: Australia
NTFS also has an extra sector, at least for MBR partitions.

https://thestarman.pcministry.com/asm/mbr/NTFSBR.htm

"Total Sectors (in the Volume) will always be 1 sector less than the total number of sectors in the volume's partition table entry, because the NTFS "Backup Boot Sector" is not considered part of the NTFS Volume."

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