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Re: [RFT] Reed-Solomon
From: |
Phillip Susi |
Subject: |
Re: [RFT] Reed-Solomon |
Date: |
Tue, 28 Sep 2010 11:13:40 -0400 |
User-agent: |
Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.2.9) Gecko/20100915 Thunderbird/3.1.4 |
On 9/27/2010 7:34 PM, Lennart Sorensen wrote:
> FlexNet and similar like to write to track 0 sectors (outside partitioned
> space) to store license info. This clobbers part of grub potentially.
> So to make grub more tolerant of such misbehaviour, the idea suggested
> was to add error correction to grub so it can survive attacks on its code
> (and even potential disk errors).
Ahh, neat. Two sectors of ECC can fix one that is completely destroyed?
I was under the impression that you could only fix a few corrupted
bits, not an entire sector, but I suppose if you add enough ECC... I
take it that someone has already made sure that the misbehaved software
only uses a single sector?
- [RFT] Reed-Solomon, Vladimir 'φ-coder/phcoder' Serbinenko, 2010/09/25
- Re: [RFT] Reed-Solomon, Phillip Susi, 2010/09/27
- Re: [RFT] Reed-Solomon, Colin Watson, 2010/09/27
- Re: [RFT] Reed-Solomon, Phillip Susi, 2010/09/27
- Re: [RFT] Reed-Solomon, Lennart Sorensen, 2010/09/27
- Re: [RFT] Reed-Solomon,
Phillip Susi <=
- Re: [RFT] Reed-Solomon, Colin Watson, 2010/09/28
- Re: [RFT] Reed-Solomon, Vladimir 'φ-coder/phcoder' Serbinenko, 2010/09/28
- Re: [RFT] Reed-Solomon, Phillip Susi, 2010/09/28
- Re: [RFT] Reed-Solomon, Vladimir 'φ-coder/phcoder' Serbinenko, 2010/09/28
- Re: [RFT] Reed-Solomon, Manoel Rebelo Abraches, 2010/09/27