Hob - proper way to select machine and customer layers
So I thought I'd give hob a test. Basically, I wanted to do what I could already do with the command line.
Normally, after I set the environment variables, I edit the local.conf to change my machine type and parallel processing options. Then I point the download directory to a centralized one on my system, and add some License statements and some CORE-IMAGE-EXTRA-INSTALL statements for extra packages. Then I edit the bblayer.conf to had the path to my layer and the meta-intel layers.
To use Hob, I set my environment variable and the just ran hob. It was very slow going through the first 63 packages. I think this is because parallel options had not been set and the packages were all being downloaded again. But after I got to the UI of hob, I got errors adding my layers to get to the meta-intel layers I wanted. So I started over and edited local.conf and bblayer.conf prior to launching hob. Now I could see my machine from meta-intel, but I could not add my layer in. Parsing errors.
Before I report an error, I wanted to see if I have the hob startup process right. The issues is around the right way to add meta-intel/meta-cedartrail and my personal layer in my home directory.
Any advice?
JIm A
Quoted 4 lines · jfabernathy
So I thought I'd give hob a test. Basically, I wanted to do what I could already do with the command line.
Normally, after I set the environment variables, I edit the local.conf to change my machine type and parallel processing options. Then I point the download directory to a centralized one on my system, and add some License statements and some CORE-IMAGE-EXTRA-INSTALL statements for extra packages. Then I edit the bblayer.conf to had the path to my layer and the meta-intel layers.
Quoted 8 lines
To use Hob, I set my environment variable and the just ran hob. It was very slow going through the first 63 packages. I think this is because parallel options had not been set and the packages were all being downloaded again. But after I got to the UI of hob, I got errors adding my layers to get to the meta-intel layers I wanted. So I started over and edited local.conf and bblayer.conf prior to launching hob. Now I could see my machine from meta-intel, but I could not add my layer in. Parsing errors.
Before I report an error, I wanted to see if I have the hob startup process right. The issues is around the right way to add meta-intel/meta-cedartrail and my personal layer in my home directory.
Any advice?
JIm A
My experimenting tells me that currently Hob (denzil) only work with new added layers that are in the poky directory and not in your home directory. This is a different requirement than normal command line usage of bitbake.
Jim A
Quoted 5 lines · On Thursday 21 June 2012 14:39:30 jfabernathy wrote:
Quoted 4 lines · jfabernathy
To use Hob, I set my environment variable and the just ran hob. It was very slow going through the first 63 packages. I think this is because parallel options had not been set and the packages were all being downloaded again.
You're referring to the initial pseudo build here I presume?
Quoted 5 lines
Quoted 5 lines
But after I got to the UI of hob, I got
errors adding my layers to get to the meta-intel layers I wanted. So I started over and edited local.conf and bblayer.conf prior to launching hob. Now I could see my machine from meta-intel, but I could not add my layer in. Parsing errors.
By parsing errors it would help if you were more specific. Do you mean the following?
ERROR: Unable to parse /home/paul/poky/meta-intel/meta- cedartrail/conf/layer.conf: Failure expanding variable BBPATH, expression was ${BBPATH}:/home/paul/poky/meta-intel which triggered exception Exception:
variable BBPATH references itself!
Quoted 4 lines
Quoted 4 lines
Before I report an error, I wanted to see if I have the hob startup process right. The issues is around the right way to add meta-intel/meta-cedartrail and my personal layer in my home directory.
Quoted 8 lines
Quoted 3 lines
Any advice?
JIm A
My experimenting tells me that currently Hob (denzil) only work with new added layers that are in the poky directory and not in your home directory. This is a different requirement than normal command line usage of bitbake.
Assuming the error you're seeing is the one above, I don't think that's the problem - the problem AFAICT is that the order of the layers hob is using is not the same as the order in which it displays them, and the order it uses is not compatible with the old method of setting BBPATH which meta-intel and its sub-layers use, which is 'BBPATH := "${BBPATH} /extra/path/to/add"' - if BBPATH is not already set as it would not be if this is the first layer in the list, then it is unable to expand BBPATH and you get this failure. You can reproduce this outside of hob just by reordering the entries in bblayers.conf.
So there are a few issues highlighted here:
1) Hob is re-ordering the layer list and it definitely shouldn't be. I've filed bug #2649 to get this fixed.
2) We really ought to go through and fix the BBPATH setting for all layers to not use the old method of appending to it.
3) It may be useful for people to be able to change the order of layers in the layer list within hob, particularly for situations where class/conf files are overlayed (which is to be avoided, but does occur).
Cheers,
Paul
Signature · 2 lines
Paul Eggleton Intel Open Source Technology Centre
Quoted 7 lines · Paul Eggleton
Quoted 5 lines · On Thursday 21 June 2012 14:39:30 jfabernathy wrote:
Quoted 4 lines · jfabernathy
To use Hob, I set my environment variable and the just ran hob. It was very slow going through the first 63 packages. I think this is because parallel options had not been set and the packages were all being downloaded again.
You're referring to the initial pseudo build here I presume?
Yes.
Quoted 5 lines
Quoted 5 lines
Quoted 5 lines
But after I got to the UI of hob, I got
errors adding my layers to get to the meta-intel layers I wanted. So I started over and edited local.conf and bblayer.conf prior to launching hob. Now I could see my machine from meta-intel, but I could not add my layer in. Parsing errors.
Quoted 7 lines
By parsing errors it would help if you were more specific. Do you mean the following?
ERROR: Unable to parse
/home/paul/poky/meta-intel/meta-cedartrail/conf/layer.conf: Failure expanding variable BBPATH, expression was ${BBPATH}:/home/paul/poky/meta-intel which triggered exception Exception:
variable BBPATH references itself!
ERROR: Unable to parse /home/jim/poky/meta-hob/conf/layer.conf:
Failure expanding variable BBPATH, expression was $(BBPATH):/home/jim/meta-jfa:/home/jim/poky/meta which triggered exception Exception: variable BBPATH references itself!
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Quoted 7 lines
Before I report an error, I wanted to see if I have the hob startup process right. The issues is around the right way to add meta-intel/meta-cedartrail and my personal layer in my home directory.
Any advice?
JIm A
My experimenting tells me that currently Hob (denzil) only work with new added layers that are in the poky directory and not in your home directory. This is a different requirement than normal command line usage of bitbake.
Assuming the error you're seeing is the one above, I don't think that's the problem - the problem AFAICT is that the order of the layers hob is using is not the same as the order in which it displays them, and the order it uses is not compatible with the old method of setting BBPATH which meta-intel and its sub-layers use, which is 'BBPATH := "${BBPATH} /extra/path/to/add"' - if BBPATH is not already set as it would not be if this is the first layer in the list, then it is unable to expand BBPATH and you get this failure. You can reproduce this outside of hob just by reordering the entries in bblayers.conf.
So there are a few issues highlighted here:
1) Hob is re-ordering the layer list and it definitely shouldn't be. I've filed bug #2649 to get this fixed.
2) We really ought to go through and fix the BBPATH setting for all layers to not use the old method of appending to it.
Quoted 7 lines
3) It may be useful for people to be able to change the order of layers in the layer list within hob, particularly for situations where class/conf files are overlayed (which is to be avoided, but does occur).
Cheers,
Paul
Seems that you understand the problem :-)
Jim A