-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 On 2014-02-06 08:28, jdd wrote:
Le 06/02/2014 01:16, Carlos E. R. a écrit :
No, every disk has one MBR. Even usb sticks. Whether installing grub in any of them works (boots)... that's different.
not exactly. As it's name implies, there can be only one *master* boot record. I guess the multiple disk systems was not imagined when the mbr was created :-)
The "master" word in there doesn't mean that. Every partition on the disk has just one boot sector. Mandatory. If you have 20 partitions on disk (primary and logical) you get 20 boot sectors. But there is one master boot record, outside all partitions, on the first sector of the disk. On the initial BIOS definition, the bios would load and run the code on that first sector of the dis, the MBR. Then the MBR loads and runs the boot sector on some other partition, the (primary) one marked as bootable). It is called "master" because of that. And every disk has one. (unless there is no partition table, of course, but that's a deviation from the standard :-) ) Of course, the code in the MBR may not exist. On some computers, you can choose from BIOS which disk to boot. In that case, you choose which MBR to load. - -- Cheers / Saludos, Carlos E. R. (from 13.1 x86_64 "Bottle" (Minas Tirith)) -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.22 (GNU/Linux) Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ iF4EAREIAAYFAlLzfDcACgkQja8UbcUWM1xcPwD/b73kPE4al0aAYNiP7YB3Na7x OaUdR6eqapD6D+isM+AA/jzgNWo4FpM8ubqrxqvG3AYTQzR/lkUIqyf0SAAQf1RF =g1yF -----END PGP SIGNATURE----- -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org