Questions tagged [bootsector]
The bootsector is located on bootable disks such as hard drives, CDs and floppy disks. It is loaded by the BIOS and in turn loads the operating system. It is frequently a target for viruses.
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When executing INT 10h on a bare metal, does each letter correspond to a 0-1 matrix?
If we call the INT 10h and set its parameters via assembly language, and then compile this code into a binary and write it into the boot sector of the floppy disk, we can output a string on the bare ...
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HDD freezes Windows 10 when reading
My external hard drive (MAXTOR M3) run into issues lately.
At first I thought the MFT or boot sector got damaged somehow. Because the drive didn't show up at all, not even in the disk management. The ...
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Why the location for Partition entry in MBR doesn't contain partition entry?
I'm learning file system recently. wikipedia says the partition table is located at 0x01BE, but when I check my USB drive(NTFS) by a binary tool, there are some words there "Press Ctrl + Alt + ...
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Ubuntu Error: failure reading sector 0x100800 from 'hd0'
My laptop freezed, so I restarted my system manually, and ended with the Grub terminal. I tried running the ls command in Grub terminal and got the result as
grub> ls
(hd0) (hd0, gpt2) (hd0,gpt) ...
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How can I calculate CHS from the LBA?
I'm writing a bootsector, and for it I want to access a particular logical block address on a floppy disk. I have all the parameters of the disk, such as total sectors, sectors per track, head count, ...
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Does '/boot/efi' locate in Memory as ROM
I learned from the book Computer Science: An Overview
that boot loader resides on Memory
In a general-purpose computer, a program called the boot loader is perma-
nently stored in the machine’s ROM. ...
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Is the boot sector really just the beginning of a drive?
First, I am assuming that drives and/or partitions have a linear address from start to finish. This must be the case, or else programs like dd would not be able to function as a copying mechanism.
Is ...
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How to boot a bootable .bin file from a CD/DVD?
I have written a bootable program in assembly and compiled it into a .bin file.
This is a Boot sector program which works well in Virtual box where I have to manually put the program in the offset ...
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What is causing this bcdboot error in Windows 10?
I was doing the instructions at https://apple.stackexchange.com/a/239203/7125
When after doing "bcdboot e:\windows /v /s e:" I get this error:
BFSVC Error: SetNamedSecurityInfo failed! Error code = ...
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From what location are the 1st computer instructions available on boot up?
From what location are the 1st computer instructions available on boot up?
A. ROM BIOS
B. CPU
C. boot.ini
D. CONFIG.SYS
E. None of the above
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Check size of Bootimage in El Torito ISO
I checked the Hex code to know the information about the boot catelog sector, boot catelog entry...
I have obtained information such as Start LBA and Sector count of first entry in boot catelog but ...
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How would I know if a hard drive was jeopardized by a power surge?
I have a hard drive, from which I have rebuilt the MBR and Boot Sector. I was able to recover the data. My client's computer and data were easily visible prior to a power surge in the home. She would ...
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HDD Stopped Responding
I have an external 500GB hard drive containing a WD Scorpio Black, used all as one partition, encrypted with BitLocker and runs very well.
This morning I connected it to my PC, it asked for BitLocker ...
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Boot Signature - BIOS
I understand that the BIOS is in ROM, and the manufacturer "typically" designs it to point to the first sector of the "active" storage device's first sector or CHS (0,0,1)*physical and CHS (0,0,0)*...
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How to overwrite 0 sector under Windows XP?
Is there any built in Windows XP command or other utility which will let me overwrite sector 0, so the OS will be non-bootable?
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