>-----Original Message----- >From: Hart, Darren >Sent: Friday, June 01, 2012 2:17 PM >To: Bodke, Kishore K >Cc: jfabernathy; yocto@yoctoproject.org >Subject: Re: [yocto] meta-cedartrail - serial console > >On 06/01/2012 02:02 PM, Bodke, Kishore K wrote: >> >> >>> -----Original Message----- >>> From: Hart, Darren >>> Sent: Friday, June 01, 2012 11:12 AM >>> To: Bodke, Kishore K >>> Cc: jfabernathy; yocto@yoctoproject.org >>> Subject: Re: [yocto] meta-cedartrail - serial console >>> >>> On 06/01/2012 11:03 AM, Bodke, Kishore K wrote: >>>> >>>> >>>>> -----Original Message----- >>>>> From: Hart, Darren >>>>> Sent: Thursday, May 31, 2012 12:43 PM >>>>> To: jfabernathy >>>>> Cc: Bodke, Kishore K; yocto@yoctoproject.org >>>>> Subject: Re: [yocto] meta-cedartrail - serial console >>>>> >>>>> On 05/31/2012 12:32 PM, jfabernathy wrote: >>>>>> On 05/31/2012 02:18 PM, Bodke, Kishore K wrote: >>>>>>> >>>>>>>> -----Original Message----- >>>>>>>> From: yocto-boun...@yoctoproject.org [mailto:yocto- >>>>>>>> boun...@yoctoproject.org] On Behalf Of jfabernathy >>>>>>>> Sent: Thursday, May 31, 2012 9:12 AM >>>>>>>> To: yocto@yoctoproject.org >>>>>>>> Subject: [yocto] meta-cedartrail - serial console >>>>>>>> >>>>>>>> Using a DN2800MT (Marshalltown) Intel board, I'm testing the >>>>>>>> meta-cedartrail using edison branch and noticed an issues with the >>>>>>>> serial console. >>>>>>>> >>>>>>>> The cedartrail.conf in the machine directory has the following >>> statements: >>>>>>>> >>>>>>>> SYSLINUX_OPTS = "serial 0 115200" >>>>>>>> SERIAL_CONSOLE = "115200 ttyS0" >>>>>>>> APPEND += "console=ttyS0,115200 console=tty0" >>>>>>>> >>>>>>> I just saw that Edison branch has ttyS3 enabled. >>>>>>> >>>>>>> SYSLINUX_OPTS = "serial 3 115200" >>>>>>> SERIAL_CONSOLE = "115200 ttyS3" >>>>>>> APPEND += "console=ttyS3,115200 console=tty3" >>>>>>> >>>>>>> Are you looking into right branch? >>>>>>> >>>>>>> Thanks >>>>>>> -Kishore. >>>>>>> >>>>>> >>>>>> So how do you get changes in the cedartrail.conf file to take affect?? >>>>>> I edited the file and did the bitbake again, but nothing changed. I'm >>>>>> guessing I need a bitbake -c cleansstate "somthing" But I don't know >>>>>> what to put there to make rebuild with ttyS0. >>>>>> >>>>> >>>>> Ah yes, this rebuild is a bit frustrating. I believe it is the >>>>> task_core* tasks you need to rebuild. bitbake -u depexp -g >>>>> core-image-base (whatever your image is) will allow you to view which >>>>> task_ tasks it is building, try cleansstate'ing those and rebuilding the >>>>> image. >>>> >>>> I had to remove the above 3 lines from cedartrail.conf and >>>> SERIAL_CONSOLE ?= "115200 ttyS0" line from conf/machine/include/ia32- >>> base.inc >>>> rebuild the image. >>>> It is disabled now. >>> >>> Did you try with SERIAL_CONSOLE="" in cedartrail.conf ? >> >> Yes. I tried this. It is disabled. >> > >Meaning you do not have to modify ia32-base.inc?
I removed the SERIAL_CONSOLE ?= "115200 ttyS0" from ia32-base.inc too. > >> I again added back in the grub.cfg, serial console hangs. > >Added what back in grub.cfg? I added back console=ttyS0,115200 console=tty0 to the grub.cfg file and rebooted to see if I can get the serial console back, but after below boot messages the serial console hangs. Freeing unused kernel memory: 496k freed udev[77]: starting version 164 EXT3-fs: barriers not enabled kjournald starting. Commit interval 5 seconds EXT3-fs (loop0): using internal journal EXT3-fs (loop0): recovery complete EXT3-fs (loop0): mounted filesystem with ordered data mode udev[487]: starting version 164 NET: Registered protocol family 10 ADDRCONF(NETDEV_UP): eth0: link is not ready ip_tables: (C) 2000-2006 Netfilter Core Team nf_conntrack version 0.5.0 (16384 buckets, 65536 max) > >I thought you were disabling the serial port... I wanted to enable and disable the serial console through grub.cfg file. Thanks Kishore. > >Where does the serial console hang? In grub? During boot? At the login >prompt? > > > >-- >Darren Hart >Intel Open Source Technology Center >Yocto Project - Linux Kernel _______________________________________________ yocto mailing list yocto@yoctoproject.org https://lists.yoctoproject.org/listinfo/yocto