[OE-core] [PATCH 1/1] image.bbclass: default USE_DEVFS to '1'

[Andrea Adami]

On Mon, Dec 9, 2013 at 12:52 PM, Otavio Salvador
<otavio at ossystems.com.br> wrote:
> Hello,
>
> I agree with the commit but ...
>
> On Mon, Dec 9, 2013 at 1:17 AM,  <Qi.Chen at windriver.com> wrote:
>> From: Chen Qi <Qi.Chen at windriver.com>
>>
>> Default USE_DEVFS to "1" so that the `makedevs' command is not run
>> at rootfs time by default. There are mainly two reasons to do so.
>> 1. This will fix a build failure with initramfs-kexecboot-klibc-image.
>
> Can you elaborate this error? is it something we can/should fix?
>
>> 2. Most of our images use a filesystem over /dev. Most of the time, it's
>>    just devtmpfs. So we actually are using a filesystem over /dev.
>>
>> Signed-off-by: Chen Qi <Qi.Chen at windriver.com>
>> ---
>>  meta/classes/image.bbclass |    2 +-
>>  1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/meta/classes/image.bbclass b/meta/classes/image.bbclass
>> index cc65e35..b8bd462 100644
>> --- a/meta/classes/image.bbclass
>> +++ b/meta/classes/image.bbclass
>> @@ -77,7 +77,7 @@ PACKAGE_INSTALL_ATTEMPTONLY ?= "${FEATURE_INSTALL_OPTIONAL}"
>>  # Images are generally built explicitly, do not need to be part of world.
>>  EXCLUDE_FROM_WORLD = "1"
>>
>> -USE_DEVFS ?= "0"
>> +USE_DEVFS ?= "1"
>>
>>  PID = "${@os.getpid()}"
>>
>> --
>> 1.7.9.5
>>
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>
>
>
> --
> Otavio Salvador                             O.S. Systems
> http://www.ossystems.com.br        http://code.ossystems.com.br
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The underlying issue here is the extra pass of makedevs  " makedevs:
No entry for root in search list "

At first I could not understand why that was *not* happening on my
builds then I realized we set
IMAGE_DEVICE_TABLES = "" in our machine.conf because we use devtmpfs
for all images.

qemux86 does instead inherit the default setting of image.bbclass so
it uses "files/device_table-minimal.txt"


Cheers

Andrea