Hi Loc,
I am able to boot the kernel with the ramdisk based on the
information provided in the document. But if possible I would like to
add another section to allow the user to first load the ramdisk into
RAM boot the kernel with it and once everything is working fine then
flash the ramdisk. I followed these steps to do it:
1. Load the ramdisk into RAM @ location 0x85000000 using the command,
tftpboot 0x85000000 ramdisk.gz
2. Provide this information in the bootargs by adding,
root=/dev/ram rw initrd=0x85000000,0x$(filesize)
3. Now kernel will boot from the ramdisk loaded at RAM location
0x85000000 and if everything is fine then the ramdisk can be flashed.
But my final setup is to load ramdisk using tftp and also the kernel
using tftp. Right now I am facing some issues with that. I am working
on it and hopefully will be able to get it working soon.
One question, Do I need to enable any feature in the kernel to get the
root mounted on /dev/ramx? I think with both kernel and ramdisk loaded
from tftp it is booting fine but kernel panics while mounting FS
giving this message,
yaffs: dev is 1048576 name is
"ram0"
yaffs: Attempting MTD mount on 1.0, "ram0"
yaffs: dev is 1048576 name is "ram0"
yaffs: Attempting MTD mount on 1.0, "ram0"
Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(1,0)
Thanks and Regards,
Meher
On 12/13/06, Truong, Loc <[EMAIL PROTECTED]> wrote:
You are welcome. Please let us know any comments so we can make the document
more useful.
Best regards,
Loc
________________________________
From: meher baba [mailto:[EMAIL PROTECTED]
Sent: Wednesday, December 13, 2006 2:37 PM
To: Truong, Loc
Cc: davinci-linux-open-source@linux.davincidsp.com
Subject: Re: Using initrd
Loc,
Thanks for the information. This definetly should get me going.
Regards,
Meher
On 12/13/06, Truong, Loc < [EMAIL PROTECTED]> wrote:
Please check out a new app note SPRAAH2 at www.ti.com that talks about
flashing initrd to NOR to build a stand alone system as an http server.
Regards,
Loc
------------------------------
Message: 3
Date: Wed, 13 Dec 2006 10:59:33 -0600
From: "meher baba" <[EMAIL PROTECTED]>
Subject: Using initrd
To: davinci-linux-open-source@linux.davincidsp.com
Message-ID:
<[EMAIL PROTECTED]>
Content-Type: text/plain; charset="iso-8859-1"
Hi,
I am new to Linux and I want to use the initrd feature of the
kernel to
load the basic file system. Can some one point to me on how to make a
initrd
image and how to load it using U-boot?
Thanks and Best Regards,
Meher
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Message: 4
Date: Wed, 13 Dec 2006 17:08:33 +0000
From: Andrew Armstrong <[EMAIL PROTECTED] >
Subject: Re: Using initrd
To: meher baba <[EMAIL PROTECTED]>
Cc: davinci-linux-open-source@linux.davincidsp.com
Message-ID: <[EMAIL PROTECTED]>
Content-Type: text/plain
Guys,
I would like to tag something alond to this request, I myself am in the
position of having a working self-contained NAND setup (boot, kernel and
filesys) and a step-by-step procedure, however, am having difficulty
doing the same in NOR.
I have the UBOOT and Kernel running as it should, but does anyone know
the best way to get a read-only file system mounted from the remaining
NOR space? Ideally (for production) this would be written to flash at
the same time as the Kernel. I am also considering mounting the file
system directly from the NOR if this is possible.
Any linux brainboxes with any answers? ;)
Regards,
Andrew
On Wed, 2006-12-13 at 10:59 -0600, meher baba wrote:
> Hi,
> I am new to Linux and I want to use the initrd feature of the
> kernel to load the basic file system. Can some one point to me on how
> to make a initrd image and how to load it using U-boot?
>
> Thanks and Best Regards,
> Meher
> _______________________________________________
> Davinci-linux-open-source mailing list
> Davinci-linux-open-source@linux.davincidsp.com
> http://linux.davincidsp.com/mailman/listinfo/davinci-linux-open-source
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Regards,
Meher
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