Hello
I want to create an update mechanism for our embedded system. I chose swupdate because it is very well documented and seems flexible.
When trying to build swupdate-image it fails with several undefined references, just a few as example:
"""
/opt/thudPoky/build/tmp/work/corei7-64-poky-linux/swupdate/2018.11-r0/recipe-sysroot-native/usr/bin/x86_64-poky-linux/../../libexec/x86_64-poky-linux/gcc/x86_64-poky-linux/8.2.0/ld: bootloader/lib.a(uboot.o): in function `bootloader_env_set':
| uboot.c:(.text.bootloader_env_set+0x40): undefined reference to `fw_env_open'
| /opt/thudPoky/build/tmp/work/corei7-64-poky-linux/swupdate/2018.11-r0/recipe-sysroot-native/usr/bin/x86_64-poky-linux/../../libexec/x86_64-poky-linux/gcc/x86_64-poky-linux/8.2.0/ld: uboot.c:(.text.bootloader_env_set+0xf8): undefined reference to `fw_env_write'
| uboot.c:(.text.bootloader_env_set+0x40): undefined reference to `fw_env_open'
| /opt/thudPoky/build/tmp/work/corei7-64-poky-linux/swupdate/2018.11-r0/recipe-sysroot-native/usr/bin/x86_64-poky-linux/../../libexec/x86_64-poky-linux/gcc/x86_64-poky-linux/8.2.0/ld: uboot.c:(.text.bootloader_env_set+0xf8): undefined reference to `fw_env_write'
"""
I see lots of "uboot" in the trace, but to my understanding swupdate should also work with grub which I enabled using:
EFI_PROVIDER = "grub-efi" (First tried to use PREFERRED_PROVIDER_virtual/bootloader, but this doesn't work with EFI booting)
When I want to enable "uboot" this way, bitbake tells me there is no uboot.
I know there is also the option of writing my own init scripts but this would be just reinventing the wheel (given there is an swupdate available) and probably more error-prone than a grown update tool. Thus I would like to get swupdate to work.
Any ideas ?
Best regards
Moritz
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