I solved the problem by installing the latest image from beaglebone.org. 
Now I can load capes no problem.

Thanks anyway. 


On Sunday, January 1, 2017 at 2:16:58 AM UTC-5, Dean Gouramanis wrote:
>
> I am having a similar problem as described above. I am trying to load a 
> custom cape. 
>
> I am trying to load a copy of BB-BONE-LCD4.dts. Eventually I plan to 
> modify this overlay to include an LCD panel, but for now i've *cloned the 
> dts file*, changed the part number to DOPTOCAPE1, and renamed the file 
> DOPTOCAPE1.dts
>
> I placed the file in /src/arm directory, then ran install.sh
>
> I cheked that DOPTOCAPE1.dtbo is now in /lib/firmware
>
> Then I made the changes in my uEnv.txt file, and rebooted.
>
> Here is debug from the boot process:
>
> [    0.000000] Kernel command line: console=ttyO0,115200n8 
> capemgr.disable_partno=BB-BONELT-HDMI,BB-BONELT-HDMIN 
> capemgr.enable_partno=dev_OPTOCAPE 
> root=UUID=509a5094-05c2-4cf0-803d-945708cd72b5 ro rootfstype=ext4 rootwait 
> coherent_pool=1M quiet net.ifnames=0 
> [    0.610669] bone-capemgr bone_capemgr.9: Baseboard: 
> 'A335BNLT,000C,3914BBBK2717' 
> [    0.610691] bone-capemgr bone_capemgr.9: 
> compatible-baseboard=ti,beaglebone-black 
> [    0.610729] bone-capemgr bone_capemgr.9: Skipping disabled cape with 
> part# BB-BONELT-HDMI 
> [    0.610773] bone-capemgr bone_capemgr.9: Skipping disabled cape with 
> part# BB-BONELT-HDMIN 
> [    0.641898] bone-capemgr bone_capemgr.9: slot #0: No cape found 
> [    0.679000] bone-capemgr bone_capemgr.9: slot #1: No cape found 
> [    0.716114] bone-capemgr bone_capemgr.9: slot #2: No cape found 
> [    0.753223] bone-capemgr bone_capemgr.9: slot #3: No cape found 
> [    0.759455] bone-capemgr bone_capemgr.9: slot #4: specific override 
> [    0.759476] bone-capemgr bone_capemgr.9: bone: Using override eeprom 
> data at slot 4 
> [    0.759492] bone-capemgr bone_capemgr.9: slot #4: 
> 'Bone-LT-eMMC-2G,00A0,Texas Instrument,BB-BONE-EMMC-2G' 
> [    0.759565] bone-capemgr bone_capemgr.9: slot #5: specific override 
> [    0.759582] bone-capemgr bone_capemgr.9: bone: Using override eeprom 
> data at slot 5 
> [    0.759595] bone-capemgr bone_capemgr.9: slot #5: 
> 'Bone-Black-HDMI,00A0,Texas Instrument,BB-BONELT-HDMI' 
> [    0.759667] bone-capemgr bone_capemgr.9: slot #6: specific override 
> [    0.759683] bone-capemgr bone_capemgr.9: bone: Using override eeprom 
> data at slot 6 
> [    0.759696] bone-capemgr bone_capemgr.9: slot #6: 
> 'Bone-Black-HDMIN,00A0,Texas Instrument,BB-BONELT-HDMIN' 
> [    0.759755] bone-capemgr bone_capemgr.9: enabled_partno part_number 
> 'dev_OPTOCAPE', version 'N/A', prio '0' 
> [    0.759768] bone-capemgr bone_capemgr.9: slot #7: generic override 
> [    0.759779] bone-capemgr bone_capemgr.9: bone: Using override eeprom 
> data at slot 7 
> [    0.759792] bone-capemgr bone_capemgr.9: slot #7: 'Override Board 
> Name,00A0,Override Manuf,dev_OPTOCAPE' 
> [    0.759896] bone-capemgr bone_capemgr.9: Skipping loading of disabled 
> cape with part# BB-BONELT-HDMI 
> [    0.759908] bone-capemgr bone_capemgr.9: Skipping loading of disabled 
> cape with part# BB-BONELT-HDMIN 
> [    0.760092] bone-capemgr bone_capemgr.9: loader: before slot-4 
> BB-BONE-EMMC-2G:00A0 (prio 1) 
> [    0.760107] bone-capemgr bone_capemgr.9: loader: check slot-4 
> BB-BONE-EMMC-2G:00A0 (prio 1) 
> [    0.760134] bone-capemgr bone_capemgr.9: initialized OK. 
> [    0.762291] bone-capemgr bone_capemgr.9: loader: check slot-4 
> BB-BONE-EMMC-2G:00A0 (prio 1) 
> [    0.764081] bone-capemgr bone_capemgr.9: loader: before slot-7 
> dev_OPTOCAPE:00A0 (prio 0) 
> [    0.764094] bone-capemgr bone_capemgr.9: loader: check slot-7 
> dev_OPTOCAPE:00A0 (prio 0) 
> [    0.764109] bone-capemgr bone_capemgr.9: loader: after slot-7 
> dev_OPTOCAPE:00A0 (prio 0) 
> [    0.764124] bone-capemgr bone_capemgr.9: slot #7: Requesting part 
> number/version based 'dev_OPTOCAPE-00A0.dtbo 
> [    0.764139] bone-capemgr bone_capemgr.9: slot #7: Requesting firmware 
> 'dev_OPTOCAPE-00A0.dtbo' for board-name 'Override Board Name', version 
> '00A0' 
> [    1.239617] bone-capemgr bone_capemgr.9: failed to load firmware 
> 'dev_OPTOCAPE-00A0.dtbo' 
> [    1.248179] bone-capemgr bone_capemgr.9: loader: failed to load slot-7 
> dev_OPTOCAPE:00A0 (prio 0) 
> [    1.257645] bone-capemgr bone_capemgr.9: loader: check slot-4 
> BB-BONE-EMMC-2G:00A0 (prio 1) 
> [    1.257662] bone-capemgr bone_capemgr.9: loader: after slot-4 
> BB-BONE-EMMC-2G:00A0 (prio 1) 
> [    1.257685] bone-capemgr bone_capemgr.9: slot #4: Requesting firmware 
> 'cape-bone-2g-emmc1.dtbo' for board-name 'Bone-LT-eMMC-2G', version '00A0' 
> [    1.257702] bone-capemgr bone_capemgr.9: slot #4: dtbo 
> 'cape-bone-2g-emmc1.dtbo' loaded; converting to live tree 
> [    1.257911] bone-capemgr bone_capemgr.9: slot #4: #2 overlays 
> [    1.286653] bone-capemgr bone_capemgr.9: slot #4: Applied #2 overlays. 
> [    1.286678] bone-capemgr bone_capemgr.9: loader: done slot-4 
> BB-BONE-EMMC-2G:00A0 (prio 1) 
> (initramfs) :
>
>
> Then I repeated the process, loading "BB-BONE-LCD4-01" instead. I 
> rebooted, and this overlay loaded with no problems. 
>
>
> Then I tried loading manually with:
>
> echo BB-BONE-LCD4-01 >/sys/devices/bone_capemgr.9/slots
>
> This worked also. When I tried the same with my custom file, the shell 
> returned:
>
> sh: I/O error
>
>
> So it seems I am having a problem loading custom .dtbo files.
>
>
> My kernel info is:
>
> Linux beaglebone 3.8.13-xenomai-r81 #1 Fri Oct 14 16:24:43 UTC 2016 armv7l 
> GNU/Linux
>
> Do I need to upate my kernel?
>
>
>
>
> On Wednesday, October 14, 2015 at 11:06:10 PM UTC-4, [email protected] 
> wrote:
>>
>> I'm trying to sync up with the latest & greatest image-builder work by 
>> Robert Nelson.  So far so good, I have my debian jessie 4.1.10-ti-r21 BBB 
>> image built and flashed; I've converted my .dts *back* into an overlay for 
>> the 4.1 capemgr with the kernels.
>>
>> The cape EEPROM is properly flashed, but while capemgr detects it, it 
>> doesn't seem to be able to load the BB-SERIAL-00A0.dtbo located in 
>> /lib/firmware:
>>
>> [    3.588753] bone_capemgr bone_capemgr: Baseboard: 
>> 'A335BNLT,0A6A,xxxxBBBKxxxx'
>> [    3.588789] bone_capemgr bone_capemgr: 
>> compatible-baseboard=ti,beaglebone-black - #slots=4
>> [    3.632229] bone_capemgr bone_capemgr: slot #0: 'Serial Util 
>> Board,00A0,WinstonSmith,BB-SERIAL'
>> [    3.688184] bone_capemgr bone_capemgr: slot #1: No cape found
>> [    3.748178] bone_capemgr bone_capemgr: slot #2: No cape found
>> [    3.808177] bone_capemgr bone_capemgr: slot #3: No cape found
>> [    3.814213] bone_capemgr bone_capemgr: initialized OK.
>> ...
>> [    4.838440] bone_capemgr bone_capemgr: loader: failed to load slot-0 
>> BB-SERIAL:00A0 (prio 0)
>> [    9.857097] EXT4-fs (mmcblk0p2): mounted filesystem with ordered data 
>> mode. Opts: (null)
>>
>> Basically, the .dts simply enables UART1,2,4,5 and a DS1307 RTC.
>>
>> I know the .dts is ok as I can manually load the .dtbo with:
>>
>> echo 'BB-SERIAL' > /sys/devices/platform/bone_capemgr/slots
>>
>> But I can't get it to automatically load, I've tried the EEPROM 
>> detection, adding it to uEnv.txt and even /etc/default/capemgr (which used 
>> to be the only solution for 3.8).
>>
>> Back in the 3.8 days, there was an issue with the root filesystem not 
>> being mounted when the capemgr did it's detection ... is this still an 
>> issue (see last line of dmesg output above -- I did try adding rootwait to 
>> the kernel cmdline).  In 3.8, this was easily resolved by adding 
>> CAPE=BB-SERIAL to the /etc/default/capemgr (which doesn't seem to work now).
>>
>> Any ideas?
>>
>>
>> -W
>>
>>

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