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Re: Root filesystem overlay. Symbolic links.: msg#00022

t2.devel

Subject: Re: Root filesystem overlay. Symbolic links.

Hi,

On 14.04.2008, at 15:20, Marian Aldenhövel wrote:

My custom T2-built target now boots a kernel in QEMU (and on the real device
as well, but I'm playing with the emulator for now), loads an initramfs -
which is all it ever will get - and then goes haywire with loads of messages,
most propably from processes started via minit.

I have statically compiled a "hello world" program and put that as / init onto
my root-fs and it runs that fine. So there is hope. I mean, any hello world
is a major achievement, right?

Hooray!

Yes, congratulations!

Next it has been suggested to me to boot right into a shell as / init. To use
that to look around the system from the inside and find out what it's missing
instead of scrolling down an endless list of init-booboos.

I tried to achieve that via the root filesystem overlay by instructing it
to create a symlink to /bin/bash.

I created a file $target/rootfs/init with a single line:

#!ln -s ./bin/bash

As suggested by the handbook I stole that from another target.

Unfortunately ./scripts/Build-Target just copies that file as-is to
$build/TOOLCHAIN/rootfs instead of creating a symlink in the target.

What am I doing wrong this time?

Syntax-wise the line should work, do you get any diagnostic scrolling
by whiel the Build-Target is processing the overlay?

For a test you can also pass init=/bin/bash via the "kernel arguments".

--
René Rebe - ExactCODE GmbH - Europe, Germany, Berlin
Geschäftsführer: Susanne Klaus, René Rebe
Sitz: Berlin, Amtsgericht Charlottenburg HRB 105 123 B
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http://exactcode.de | http://t2-project.org | http://rene.rebe.name

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