On July 23, 2015 11:21:24 PM EDT, Andrei Borzenkov <arvidjaar@gmail.com> wrote:
В Thu, 23 Jul 2015 23:12:05 +0200 buhorojo <buhorojo.lcb@gmail.com> пишет:
* buhorojo <buhorojo.lcb@gmail.com> [07-23-15 15:48]: [...]
I pressed e. We now get: setparams openSUSE 12.3 [list of options such as load_video in a text box] Then, beneath the box, Minimum Emacs-like screen editing is supported. Ctrl X to boot. Ctrl-c for a command line
Anyone now how to proceed from here? Find the line beginning with "linux", go to the end of the line (may be wrapped) Add a space and init=/bin/bash
should be good to go. Hi We are concerned that this is easy to do. Is there any way we can
On 23/07/15 22:37, Patrick Shanahan wrote: prevent this?
It is possible to configure grub2 so that going into command line or editing menu entry requires a password.
Doesn't stop the boot CD/DVD/flash drive mechanism. A combination of a bios/uefi boot password and a hard drive ata drive password does work. The ata drive password keeps the drive from working except in the computer it is paired to. The bios/uefi boot password prevents the bios from activating the drive. I have seen that done in the real world, but encryption is much more common solution. Fyi: ata password capability is part of the ata spec so most drives should support it, but in many cases the manufacturer implements it poorly and the right software can remove it or determine what the password is Here's a post about hacking Seagate drives to determine the ata password: http://hackaday.com/2013/11/29/bypassing-seagate-ata-security-lock/ Here's the code: https://github.com/BlackLotus/seaget I gather you need a special cable to connect your PC's serial port (rs-232) to the drive's serial interface pins, then this code interrogates the drive and simply grabs a data buffer that has the password in plain text embedded. Greg
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