From: Gary Thomas <gary@mlbassoc.com>
To: yocto@yoctoproject.org
Subject: Re: Kernel does not emit any boot-up messages
Date: Wed, 29 Aug 2012 05:13:05 -0600 [thread overview]
Message-ID: <503DF941.40509@mlbassoc.com> (raw)
In-Reply-To: <CA+69FtDmQvB_ex4guS12Xrf0oXhQj-7A4tZ7-PWof4YWWCcRyA@mail.gmail.com>
On 2012-08-29 05:04, Hartmut Behrens wrote:
> Hi All,
>
> A newbie question:
>
> After creating a new bsp for an Overo using the yocto-bsp script and modifying some kernel config's using menuconfig, I successfully created and loaded the image
> (core-image-minimal) onto an SD card and booted it.
>
> However, I do not see the kernel emitting any boot messages. Am I forgetting to include some recipes?
>
>
> OMAP36XX/37XX-GP ES2.1, CPU-OPP2, L3-165MHz, Max CPU Clock 1 Ghz
> OMAP3 Beagle board + LPDDR/NAND
> I2C: ready
> DRAM: 512 MiB
> NAND: 512 MiB
> MMC: OMAP SD/MMC: 0
> *** Warning - bad CRC, using default environment
>
> In: serial
> Out: serial
> Err: serial
> Beagle Rev Ax/Bx
> No EEPROM on expansion board
> Die ID #36be00029ff80000016071640201b009
> Hit any key to stop autoboot: 0
> SD/MMC found on device 0
> reading uEnv.txt
>
> ** Unable to read "uEnv.txt" from mmc 0:1 **
> reading uImage
>
> 3356520 bytes read
> Booting from mmc ...
> ## Booting kernel from Legacy Image at 82000000 ...
> Image Name: Linux-3.2.18-rt16-yocto-preempt-
> Image Type: ARM Linux Kernel Image (uncompressed)
> Data Size: 3356456 Bytes = 3.2 MiB
> Load Address: 80008000
> Entry Point: 80008000
> Verifying Checksum ... OK
> Loading Kernel Image ... OK
> OK
>
> Starting kernel ...
>
> Uncompressing Linux... done, booting the kernel.
>
> Yocto (Built by Poky 7.0) 1.2+snapshot-20120828
> ttyO2
>
> overo login: root
> root@overo:~# uname -a
> Linux overo 3.2.18-rt16-yocto-preempt-rt #4 PREEMPT RT Tue Aug 28 22:36:26 SAST 2012 armv7l GNU/Linux
Make sure your [U-Boot] bootargs contain 'console=ttyO2,115200'
--
------------------------------------------------------------
Gary Thomas | Consulting for the
MLB Associates | Embedded world
------------------------------------------------------------
next prev parent reply other threads:[~2012-08-29 11:13 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-08-29 11:04 Kernel does not emit any boot-up messages Hartmut Behrens
2012-08-29 11:13 ` Gary Thomas [this message]
2012-08-29 14:21 ` Khem Raj
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