From: David Woodhouse <dwmw2@infradead.org>
To: ian.nelson@echostar.com
Cc: "mtd@infradead.org" <mtd@infradead.org>
Subject: Re: Possibly a FAQ or stupid question
Date: Tue, 05 Dec 2000 17:30:03 +0000 [thread overview]
Message-ID: <8883.976037403@redhat.com> (raw)
In-Reply-To: <3A2D24D4.FC82D90D@echostar.com>
ian.nelson@echostar.com said:
> Can I just dd to the flash? Assuming that my AMD flash works with CFI...
No. you have to use the MEMERASE ioctl first. The doc_loadbios program in
the utils directory of the CVS tree will do this for you. Ignore the name,
which I should probably change - it's not just for the DiskOnChip.
ian.nelson@echostar.com said:
> Right now my boot loader will boot strap a kernel out of flash and
> then I hacked the kernel to scan for my initrd in flash and it will
> decompress it and run, works like a champ but I need a way to put a
> new initrd in there now.
That works. As RAM is cheaper than flash, it makes a lot of sense to do
that, in the absence of a compressed writable flash filesystem.
> Is JFFS compressed?
Not yet. Soon. Watch this space.
> Can I set aside a few K at the end of flash for my boot loader and then a
> few hundred at the beginning for my kernel and use JFFS in the middle?
Yep. You can muck about with the partitioning all you like.
--
dwmw2
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next prev parent reply other threads:[~2000-12-05 17:36 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2000-12-05 17:24 Possibly a FAQ or stupid question Ian S. Nelson
2000-12-05 17:30 ` David Woodhouse [this message]
2000-12-05 18:42 ` Nicolas Pitre
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