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Re: [Qemu-discuss] Trouble getting ARM Linux kernel to boot

From: Ezequiel Garcia
Subject: Re: [Qemu-discuss] Trouble getting ARM Linux kernel to boot
Date: Fri, 21 Sep 2012 21:51:01 -0300

On Fri, Sep 21, 2012 at 7:03 PM, Steven Frank <address@hidden> wrote:
> On Sep 21, 2012, at 11:59 AM, Ezequiel Garcia <address@hidden> wrote:
>>> I am using a Mac OS X host to build the Linux 3.5 kernel for ARM, and 
>>> trying to boot it in QEMU 1.2.0.
>>> The kernel, to my surprise, built fine on my Mac using the 
>>> arm-none-eabi-gcc toolchain from MacPorts.  I'm using the 
>>> versatile_defconfig, since that turned up a lot when I was Googling how to 
>>> do this.
>>> Then I try to boot my kernel in QEMU using this command line:
>>>        arm-softmmu/qemu-system-arm -m 16 -M versatilepb -kernel 
>>> arch/arm/boot/zImage -serial stdio
>>> I don't have a rootfs yet -- I was hoping to just get as far as seeing the 
>>> kernel boot messages.
>>> It outputs this:
>>>        Uncompressing Linux... done, booting the kernel.
>>> Then hangs, with an empty white window.  Nothing further appears to happen.
>> I had the same problem just yesterday. Try with older kernel 2.6.32 /
>> 2.6.38 and let me know.
>> Also, what kernel config are you using?
> I'm using the versatile_defconfig to (hopefully) match up with QEMU's 
> "versatilepb" machine.
> I just tried 2.6.32 and 2.6.38.  Same results, although 2.6.32 outputs more 
> dots between "Uncompressing Linux" and "booting the kernel".  But both hang 
> at the blank white screen, just like 3.5 did.
> There is one other interesting difference.  When trying to boot 2.6.32, QEMU 
> remains responsive.  In other words, it responds to events like Cmd-Q to 
> quit.  With the later kernels, QEMU hangs completely and must be force-quit 
> (killed).
> Very curious.  Any thoughts?

It was working yesterday. Let me check my qemu / kernel version and
the parameters
I'm using....

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