From: Frank Lassowski <flassowski@gmx.de>
To: u-boot@lists.denx.de
Subject: [U-Boot] uImage:multi or single file?
Date: Thu, 08 Dec 2011 10:22:58 +0100 [thread overview]
Message-ID: <4EE081F2.8020104@gmx.de> (raw)
Hi there,
short introduction of mine because I'm new here: mid 40, father and
husband, carpenter, using Linux since 15 years, weak skills on Uboot
because of two Marvell Sheevas running Debian.
I own an internet radio (running ucLinux, architecture blackfin) which is
not able to get the time from a NTP server, because it only uses one IP.
And this one does not respond on queries. I'm not amazed about that, the
server is in HongKong.
So I thought if it is possible to 'hack' the firmware of this device to
edit the ntp.conf
This firmware consist of 4 parts: header, 2 gzip archives and one uImage.
For this uImage 'mkimage -l' tells me the following:
Image Name: uClinux Kernel and ext2
Created: Thu Jun 18 04:42:13 2009
Image Type: Unknown Architecture Linux Kernel Image (gzip compressed)
Data Size: 2230245 Bytes = 2177.97 kB = 2.13 MB
Load Address: 0x00001000
Entry Point: 0x00001000
I can extract it by using extract_uimage.sh from here:
http://buffalo.nas-central.org/wiki/How_to_Extract_an_uImage
Now it seems I have an gzip image. Ok gunzipping it shows me something
with clear text in it.
Is there any chance to see the ext2 in this image by using a special
sequence of bytes?
Hoping for help or hints
best regards
Frank
reply other threads:[~2011-12-08 9:22 UTC|newest]
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