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1answer
112 views

How to detect if the FreeBSD disklabel is on the first sector of the disk?

I have attached a FreeBSD disk to my Linux machine. How to detect if the disklabel(aka bsdlabel) is on the first sector of the disk or the PC MBR is on the first sector of the disk and disklabel is ...
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1answer
50 views

Grub2 on wiped MBR

I'm trying to test grub2 on puppet in a VM and one of the tests is to make sure it'll still work on a wiped MBR. So I wipe the MBR with dd if=/dev/zero of=/dev/vda bs=512 count=1 Then I try to ...
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1answer
1k views

Copy MBR and boot partition to a smaller disk

I'm using a 32GB SD card for my raspberry pi. I have successfully transferred the operating system (Archlinux ARM) to a usb harddrive. Which means that I only need the boot partition on the SD card. ...
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1answer
17 views

If MBR is broken, how to fix on RAID + LUKS encryption?

Problem: After HDD failure in a Software-Raid Mirror Debian does not boot. Only black screen with blinking _ Debian Setup: Within the raid I have a complete system encryption with luks. I am not ...
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0answers
31 views

For what are disk signatures being used for by GNU/Linux (distributions) / grub?

I am talking about disk signatures in context of the MBR. The area from 441 to 445 bytes. For what does the GNU/Linux kernel, GNU/Linux distributions usually use disk signatures for? I only found ...
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0answers
19 views

The Case of the Conflicting Bootloaders

A server with a 2-disk RAID array (mirrored) is serviced by a 4-port 3Ware controller. Recently it became inaccessible after a restart. At the console it asked for the runlevel. Indeed, the /etc ...