@tom I guess you will have to install/flash complete ROM for cm12.1 on Nexus 5 and then reflash Ubuntu OTA12 or latest rc-proposed on it.

@apple-muncy : Here are the links:

http://news.tecmint.com/aethercast-arrives-on-the-nexus-5-oneplus-one-support-in-tow/
http://news.softpedia.com/news/wireless-display-support-is-coming-to-nexus-5-and-oneplus-one-ubuntu-phones-504915.shtml

I went by the statement "This build is based on the ubp-5.1 branch (android 5.1/cm12.1)" and tried Android5.1.

But I think I should have tried cm12.1: https://forums.ubports.com/topic/15/what-is-ubp-5-1-1

@tom : My understanding is that the ubport software updates don't change AOSP stuff, at least not on nexus 5. @mariogrip can you confirm this?

On reading some comments on g+ page and on web, it seems OTA 11 and also the recent rc builds are based on android 5.1.1 and not android 4.4.2. We may have to update/reflash the base android version (though I couldn’t find any positing which instructs on updating the software explicitly) for nexus 5. After updating to android 5.1.1, still I see the OTA 11 problems like broken web browser and incoming phone calls not working but overall behaviour is better than with android 4.4.2.

@apple-muncy
Not sure about that. Today I received r233 rc-proposed update and although device image part is 20160603 but Ubuntu image part is 20161005.
So probably Ubuntu image part matters!

On removing double entries for strace in default.xml and doing below:

repo init -u https://github.com/ubports/android -b 4.4.2
repo sync -j10 -f

I'm getting all sorts of errors saying repo not found:
fatal: repository 'https://github.com/aosp/platform/external/safe-iop/' not found
fatal: repository 'https://github.com/aosp/platform/external/libppp/' not found
fatal: repository 'https://github.com/aosp/platform/prebuilts/gcc/linux-x86/host/i686-linux-glibc2.7-4.6/' not found
fatal: repository 'https://github.com/aosp/device/generic/common/' not found
fatal: repository 'https://github.com/aosp/platform/system/security/' not found
fatal: repository 'https://github.com/aosp/platform/hardware/qcom/camera/' not found
fatal: repository 'https://github.com/aosp/device/generic/armv7-a-neon/' not found
fatal: repository 'https://github.com/aosp/platform/external/e2fsprogs/' not found
fatal: repository 'https://github.com/aosp/platform/external/webrtc/' not found
fatal: repository 'https://github.com/aosp/platform/build/' not found

Did you get these too? Can you list exact steps on what you did?

The 4.4.2 finding was from software version information on rc-build flashed on my phone.

@apple-muncy : You are right about -b udp-5.1. Looks like all the rc builds are from branch 4.4.2 for Hammerhead.

I should try below command:

repo init -u https://github.com/ubports/android -b 4.4.2

Will let you know how it goes.

@apple-muncy : I'm planning on trying master branch today. Will let you know how it goes. Did you try it yet?

@apple-muncy : I think "lunch" is part of code downloaded from repo. Executing build/envsetup.sh adds it to the path.

@apple-muncy I tried it again several times but no success. Looks like indeed those instructions have gone stale.

@mariogrip - can you help us out here?

I'm following ubports instructions:

mkdir phablet && cd phablet/
repo init -u https://github.com/ubports/android -b ubp-5.1

repo sync -j10

. build/envsetup.sh

I will try it again, may be I may have missed something. Thank you.

@apple.muncy , Thank you for your reply.

From the description, option 2 looks like a generic ARM32 build. Will it have required BSP for hammerhead/Nexus 5?

Hello,

I'm new to Ubuntu touch development. I am trying to build code for Nexus 5/Hammerhead.

The lunch command gives below options:

lunch

You're building on Linux

Lunch menu... pick a combo:

1. aosp_arm64-eng 14. cm_castor-userdebug 27. cm_i9500-userdebug 40. cm_sirius-userdebug 53. cm_trltexx-userdebug
2. aosp_arm-eng 15. cm_castor_windy-userdebug 28. cm_jactivelte-userdebug 41. cm_superior-userdebug 54. cm_v500-userdebug
3. aosp_mips64-eng 16. cm_dlx-userdebug 29. cm_jem-userdebug 42. cm_t6spr-userdebug 55. cm_ville-userdebug
4. aosp_mips-eng 17. cm_e975-userdebug 30. cm_ls980-userdebug 43. cm_t6vzw-userdebug 56. cm_xt907-userdebug
5. aosp_shamu-eng 18. cm_e980-userdebug 31. cm_lt03wifi-userdebug 44. cm_taoshan-userdebug 57. cm_xt925-userdebug
6. aosp_shamu-user 19. cm_evita-userdebug 32. cm_m7vzw-userdebug 45. cm_tate-userdebug 58. cm_xt926-userdebug
7. aosp_shamu-userdebug 20. cm_g620_a2-userdebug 33. cm_mb886-userdebug 46. cm_tf300t-userdebug 59. cm_z3c-userdebug
8. aosp_x86_64-eng 21. cm_grouper-userdebug 34. cm_obake-userdebug 47. cm_tf701t-userdebug 60. cm_z3dual-userdebug
9. aosp_x86-eng 22. cm_hltespr-userdebug 35. cm_picassowifi-userdebug 48. cm_tilapia-userdebug 61. cm_z3-userdebug
10. cm_amami-userdebug 23. cm_hltetmo-userdebug 36. cm_rendang-userdebug 49. cm_togari_gpe-userdebug
11. cm_bacon-eng 24. cm_hlte-userdebug 37. cm_s3ve3g-userdebug 50. cm_togari-userdebug
12. cm_bacon-user 25. cm_honami-userdebug 38. cm_scorpion-userdebug 51. cm_trltespr-userdebug
13. cm_bacon-userdebug 26. cm_i777-userdebug 39. cm_scorpion_windy-userdebug 52. cm_trltetmo-userdebug

Which one of these to choose? Is this correct way to build code for nexus 5?

I have used instructions from Wiki for ubports.

Regards,
Sagar