From: Shaun Savage <savages@savages.net>
To: Pavel Machek <pavel@ucw.cz>
Cc: linux-kernel@vger.kernel.org
Subject: Re: CBD Compressed Block Device, New embedded block device
Date: Sun, 22 Jan 2006 18:26:51 -0800 [thread overview]
Message-ID: <43D43EEB.3080209@savages.net> (raw)
In-Reply-To: <20060122082620.GC1543@elf.ucw.cz>
Hi
Compression is just one feature. Each partition is wrapped in a package
that has a header. even the kernel and boot loader are wrapped in the
package. Each package can be hashed and signed. There is a patch for
GRUB that boots CBD. GRUB patch does 3 things, boot the kernel, find
the latest version of each package, verify hash and signature. This
allow for in robust field update of packages.
shaun
Pavel Machek wrote:
>On Ne 22-01-06 00:46:52, Shaun Savage wrote:
>
>
>>HI
>>
>>Here is a patch for 2.6.14.5 of CBD
>>CBD is a compressed block device that is designed to shrink the file
>>system size to 1/3 the original size. CBD is a block device on a file
>>system so, it also allows for in-field upgrade of file system. If
>>necessary is also allows for secure booting, with a GRUB patch.
>>
>>
>
>What does compression have to do with secure booting?
>
>
>
>
next prev parent reply other threads:[~2006-01-22 13:20 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-01-22 8:46 CBD Compressed Block Device, New embedded block device Shaun Savage
2006-01-21 19:53 ` Arjan van de Ven
2006-01-21 21:09 ` Randy.Dunlap
2006-01-21 22:05 ` Alexey Dobriyan
2006-01-21 22:22 ` Matt Mackall
2006-01-22 8:26 ` Pavel Machek
2006-01-23 2:26 ` Shaun Savage [this message]
2006-01-22 15:50 ` Phillip Susi
2006-01-22 18:26 ` Jan Engelhardt
2006-01-23 11:34 ` Shaun Savage
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