Displaying 2 results from an estimated 2 matches for "sector0".
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2010 Dec 23
1
Report: Acer Travelmat stupid MBR check
...wants to boot from any media
(not even your harddisk) the exception is thrown.
Reason:
The Diskcryptor MBR starts with 0xeb(jmp). The original M$ mbr starts with
0x33(xor ax,ax).
Some bioses(like mine) try to detect if a drive has a MBR or if it is a
removable drive without MBR.
Very simple here:
Sector0,Position0==0x33 => MBR => normal partitioned harddisk.
Sector0,Position0==0xeb => Boot Sector assumed => emulate a hard disk(this
is what makes usb-sticks without mbr bootable as harddisks, and makes my
acer crash)
========================================================================...
2014 Jan 21
1
Cluster Size discrepancy between FAT32 and NTFS
...-volume HDD
> bootsector in place at desired sector 19595264
> recognized by windows as volume Z:
>
> TEST OF 4096 cluster size on NTFS
>
> wrote zeros to partition
> dd if=/dev/zero of=/dev/sda3
> still recognized by windows as unformatted volume Z:
> -partition table in sector0 which defines partition & location is unchanged by zeroing partition3 alone
>
> format using admin CMD prompt in W81 - "default" cluster size:
> FORMAT Z: /Q /FS:NTFS /A:4096 /V:NTFStest
> there is now a windows bootsector in place at 19595264 as a result of the formatting...