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Re: blocks on floppy disk



Hello Stefan,

On Mon, 16 Oct 2000, stefan goeman wrote:

> Hello,
> 
> Normally, a floppy disk contains 1440 1k blocks. Well, this is what "they"
> always told me. 
> When I mount an msdos floppy and I do df -k, I see that the number of 
> blocks are 1423. I simple wonder where the other 17 are??

They are used for the file-system. The OS needs e.g.some information, on
where the different files are on the disk. On an MS-DOS formatted disk,
this information is written into the FAT, the file allocation table. This
logically takes up some space on the disk

> By the way, when I create an ext2 floppy, I only see 1412 1k blocks, 
> where are the other 28 blocks?

Same here, although it's AFAIK not a file allocation table, but the inode
table and the superblock backups.

Regards,
Daniel



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