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pblm reading FAT in larger partitions

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Tria

Technical User
Oct 15, 2001
2
IN
hi

iam trying to read FAT16 for an undelete(dos) utility iam orking on.iam working in C and my program works fine for smaller partitions(sectors per FAT<128 ie.less than 64k) and for floppies but hangs when i try to read sectors using int86x for spft>128 ;i dunno why.i thought that sufficient memory wasn't being allocated and i rectified that.now i dunno what might be the pblm.
books suggested i try ioctl generic fns to read/write sectors (int21h,440dh) but i dunno how to get the head no.
i really don't know what the pblm is and would be glad if someone could help.
HELP!
 
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