[OE-core] [PATCH] core-image-tiny-initramfs: initramfs recipes should not generate an actual image file

[Alejandro Hernandez]

Hey Wenzong,

If you are using an Intel NUC, there is a recipe in meta-intel which is 
called core-image-tiny (not initramfs), that one is exactly what you are 
asking for, it builds the core-image-tiny-initramfs and then 
automatically creates a WIC image, which would be something similar to 
manually building core-image-tiny-initramfs and then doing:

$ wic create core-image-tiny -e core-image-tiny-initramfs


Hope that helps!


Alejandro



On 11/27/2017 09:29 PM, wenzong fan wrote:
> Hi Alex,
>
> Do you have a case that generating an image with wic + tiny initramfs? 
> If so could you please show me that?
>
> I tried to create an image with below commands directly, I'm not sure 
> if this is a proper test case:
> $ wic create mkefidisk -e core-image-tiny-initramfs
>
> While I booting it with USB + Intel NUC, it hangs at finding rootfs.
>
> Thanks
> Wenzong
>
> On 09/16/2017 02:22 AM, Alejandro Hernandez wrote:
>> core-image-tiny-initramfs was used to generate a wic image, which was 
>> conceptually wrong
>> since initrafms recipes should only generate the boot artifacts that 
>> can later be used
>> by another recipe to generate an image using the tool of their choice.
>>
>> Signed-off-by: Alejandro Hernandez <alejandro.hernandez at linux.intel.com>
>> ---
>>   meta/recipes-core/images/core-image-tiny-initramfs.bb | 7 +++----
>>   1 file changed, 3 insertions(+), 4 deletions(-)
>>
>> diff --git a/meta/recipes-core/images/core-image-tiny-initramfs.bb 
>> b/meta/recipes-core/images/core-image-tiny-initramfs.bb
>> index 184727ddf7a..a8893d1e53e 100644
>> --- a/meta/recipes-core/images/core-image-tiny-initramfs.bb
>> +++ b/meta/recipes-core/images/core-image-tiny-initramfs.bb
>> @@ -1,10 +1,9 @@
>>   # Simple initramfs image artifact generation for tiny images.
>>   DESCRIPTION = "Tiny image capable of booting a device. The kernel 
>> includes \
>>   the Minimal RAM-based Initial Root Filesystem (initramfs), which 
>> finds the \
>> -first 'init' program more efficiently. core-image-tiny-initramfs 
>> doesn't \
>> +first 'init' program more efficiently. core-image-tiny-initramfs 
>> doesn't \
>>   actually generate an image but rather generates boot and rootfs 
>> artifacts \
>> -into a common location that can subsequently be picked up by 
>> external image \
>> -generation tools such as wic."
>> +that can subsequently be picked up by external image generation 
>> tools such as wic."
>>     PACKAGE_INSTALL = "initramfs-live-boot packagegroup-core-boot 
>> dropbear ${VIRTUAL-RUNTIME_base-utils} udev base-passwd 
>> ${ROOTFS_BOOTSTRAP_INSTALL}"
>>   @@ -17,7 +16,7 @@ IMAGE_LINGUAS = ""
>>   LICENSE = "MIT"
>>     # don't actually generate an image, just the artifacts needed for 
>> one
>> -IMAGE_FSTYPES = "${INITRAMFS_FSTYPES} wic"
>> +IMAGE_FSTYPES = "${INITRAMFS_FSTYPES}"
>>     inherit core-image
>>