Re: [poky] win create failing at mcopy #poky #raspberrypi

["Mike Jones" <proclivis@gmail.com>]

> On May 11, 2021, at 6:59 AM, Mike Jones via lists.yoctoproject.org <proclivis=gmail.com@lists.yoctoproject.org> wrote:
> 
> 
>>> On May 11, 2021, at 4:20 AM, Richard Purdie <richard.purdie@linuxfoundation.org> wrote:
>>> 
>>> On Mon, 2021-05-10 at 18:54 -0600, Mike Jones wrote:
>>> I have a little more info on this and a more specific question.
>>> 
>>> I copied the mtools code and hooked it into the layer so I could put in debug statements.
>>> 
>>> The problem occurs in charsetConv.c in the function cp_open, when it tries to do an iconv_open using
>>> “CP850”, which fails.
>>> 
>>> I ran “iconv —list” to see what it can convert, and CP850 is not listed.
>>> 
>>> To prove this is the problem, I hardcoded the iconv_open with “ASCII” and bit bake can go all the way
>>> through and “wic create” works properly.
>>> 
>>> So I ran iconv —version and saw it was “GNU libc 2.31” so I poked around those layers.
>>> 
>>> Best I can guess is this line from the mtools layer should tell the libc to provide CP850 via this line:
>>> 
>>> RDEPENDS_${PN}_libc-glibc = "glibc-gconv-ibm850”
>>> 
>>> Except that that is for runtime, and this is build time.
>>> 
>>> So I am not sure how glibc decides what converters are used. Is it just a set of defaults? Is there a layer
>>> somewhere defining them I could not find?
>>> 
>>> It seems that somewhere along the way, mtools changed its default to use 850, and it is not compatible
>>> anymore.
>>> 
>>> The solution is probably to tell glibc to provide CP850.
>>> 
>>> Does anyone know how to do that?
>> 
>> Which version of Yocto Project are you using? Are you using buildtools-tarball 
>> or uninative in your build?
> 
> I run poky/scripts/install-buildtools with no command line options.
> 
> It contains these defaults:
> 
> DEFAULT_INSTALL_DIR = os.path.join(os.path.split(scripts_path)[0],'buildtools')
> DEFAULT_BASE_URL = 'http://downloads.yoctoproject.org/releases/yocto'
> DEFAULT_RELEASE = 'yocto-3.2_M3'
> DEFAULT_INSTALLER_VERSION = '3.1+snapshot'
> DEFAULT_BUILDDATE = '20200923'
> 
> I see I can use command line options to use a different release if you have guidance on what to use.

After tweaking the script to change sha256 to sha256sum and removing one \s from the regular expression, I installed 3.2.3 and I will bitbake and see it it works.

I am guessing the script changes are due to an older version of poky, but poky is part of the openbmc project clone, not something we manually clone from a yocto repository.

If this works, I’ll have to address that issue on the openbmc listserv.

Mike

> 
> Mike
> 
>> 
>> I suspect you need a newer buildtools-tarball version which includes CP850.
>> 
>> Cheers,
>> 
>> Richard
>> 
> 
> 
>