Failed to build blobfs

[janemba cap]

Hello,

I am trying to build fuchsia but I got some error while running `fx build`. Below the log:

Build initiated at 20211122_093010

------ GIT QUICK INFO ------

$ git status

HEAD detached at e36bd8770a9

nothing to commit, working tree clean

$ git rev-parse JIRI_HEAD

e36bd8770a9bca4162c76c173b21e0af1c0738ba

------ CONTENTS OF args.gn ------

$ cat /mnt/disk/fuchsia/out/default/args.gn

import("//boards/x64.gni")

import("//products/workstation.gni")

build_info_board = "x64"

build_info_product = "workstation"

enable_rbe = false

is_debug = true

use_goma = false

base_package_labels += []

cache_package_labels += []

host_labels += []

universe_package_labels += []

------ RUNNING ninja ------

env -i TERM=alacritty PATH=/mnt/disk/fuchsia/prebuilt/third_party/python3/linux-x64/bin:/home/atoum/.opam/4.09.0/bin:/home/atoum/.opam/4.09.0/bin:/usr/lib64/go1.16.3/go/bin:/usr/local/bin:/usr/bin:/bin:/usr/games:/usr/lib/java/bin:/usr/lib/java/jre/bin:/usr/lib64/libexec/kf5:/usr/lib64/qt5/bin:/home/atoum/.local/bin:/usr/local/bin:/mnt/disk/fuchsia/.jiri_root/bin /mnt/disk/fuchsia/prebuilt/third_party/ninja/linux-x64/ninja -j 16 -C /mnt/disk/fuchsia/out/default

ninja: Entering directory `/mnt/disk/fuchsia/out/default'

[1/82] STAMP obj/build/images/zedboot/esp.stamp

[2/82] STAMP obj/build/images/zedboot/zedboot.stamp

[3/82] ACTION //build/images:zedboot-script(//build/toolchain/fuchsia:x64)

[4/82] STAMP obj/build/images/zedboot-script.stamp

[5/82] ACTION //build/images/fuchsia:netboot_image_assembler(//build/toolchain/fuchsia:x64)

FAILED: obj/build/images/fuchsia/netboot/netboot.zbi obj/build/images/fuchsia/netboot/gen/zbi.json obj/build/images/fuchsia/netboot/packages.json obj/build/images/fuchsia/netboot/images.json obj/build/images/fuchsia/netboot/netboot.vbmeta obj/build/images/fuchsia/netboot/base.far obj/build/images/fuchsia/netboot/data.blk obj/build/images/fuchsia/netboot/blob.blk obj/build/images/fuchsia/netboot/fvm.blk obj/build/images/fuchsia/netboot/fvm.sparse.blk obj/build/images/fuchsia/netboot/fvm.blob.sparse.blk obj/build/images/fuchsia/netboot/gen/blob.manifest obj/build/images/fuchsia/netboot/gen/blobs.json obj/build/images/fuchsia/netboot/gen/data/static_packages obj/build/images/fuchsia/netboot/gen/data/cache_packages obj/build/images/fuchsia/netboot/gen/system_image/meta/package obj/build/images/fuchsia/netboot/base_package_manifest.json obj/build/images/fuchsia/netboot/fvm.fastboot.blk

../../build/gn_run_binary.sh ../../prebuilt/third_party/clang/linux-x64/bin host_x64/ffx --env .ffx.env --config assembly_enabled=true assembly image --product obj/build/images/fuchsia/netboot_product_config.json --board obj/build/images/fuchsia/netboot_board_config.json --gendir obj/build/images/fuchsia/netboot/gen --outdir obj/build/images/fuchsia/netboot

BUG: An internal command error occurred.

Failed to build the blobfs

Caused by:

    Failed to generate blobfs with status: exit status: 255

[6/82] ACTION //build/images/fuchsia:fuchsia_image_assembler(//build/toolchain/fuchsia:x64)

FAILED: obj/build/images/fuchsia/fuchsia/fuchsia.zbi obj/build/images/fuchsia/fuchsia/gen/zbi.json obj/build/images/fuchsia/fuchsia/packages.json obj/build/images/fuchsia/fuchsia/images.json obj/build/images/fuchsia/fuchsia/fuchsia.vbmeta obj/build/images/fuchsia/fuchsia/base.far obj/build/images/fuchsia/fuchsia/data.blk obj/build/images/fuchsia/fuchsia/blob.blk obj/build/images/fuchsia/fuchsia/fvm.blk obj/build/images/fuchsia/fuchsia/fvm.sparse.blk obj/build/images/fuchsia/fuchsia/fvm.blob.sparse.blk obj/build/images/fuchsia/fuchsia/gen/blob.manifest obj/build/images/fuchsia/fuchsia/gen/blobs.json obj/build/images/fuchsia/fuchsia/gen/data/static_packages obj/build/images/fuchsia/fuchsia/gen/data/cache_packages obj/build/images/fuchsia/fuchsia/gen/system_image/meta/package obj/build/images/fuchsia/fuchsia/base_package_manifest.json obj/build/images/fuchsia/fuchsia/fvm.fastboot.blk

../../build/gn_run_binary.sh ../../prebuilt/third_party/clang/linux-x64/bin host_x64/ffx --env .ffx.env --config assembly_enabled=true assembly image --product obj/build/images/fuchsia/fuchsia_product_config.json --board obj/build/images/fuchsia/fuchsia_board_config.json --gendir obj/build/images/fuchsia/fuchsia/gen --outdir obj/build/images/fuchsia/fuchsia

BUG: An internal command error occurred.

Failed to build the blobfs

Caused by:

    Failed to generate blobfs with status: exit status: 255

[7/82] ACTION //build/images/fuchsia:fuchsia_prime_assembly_image_assembler(//build/toolchain/fuchsia:x64)

FAILED: obj/build/images/fuchsia/fuchsia_prime_assembly/fuchsia_prime_assembly.zbi obj/build/images/fuchsia/fuchsia_prime_assembly/gen/zbi.json obj/build/images/fuchsia/fuchsia_prime_assembly/packages.json obj/build/images/fuchsia/fuchsia_prime_assembly/images.json obj/build/images/fuchsia/fuchsia_prime_assembly/fuchsia_prime_assembly.vbmeta obj/build/images/fuchsia/fuchsia_prime_assembly/base.far obj/build/images/fuchsia/fuchsia_prime_assembly/data.blk obj/build/images/fuchsia/fuchsia_prime_assembly/blob.blk obj/build/images/fuchsia/fuchsia_prime_assembly/fvm.blk obj/build/images/fuchsia/fuchsia_prime_assembly/fvm.sparse.blk obj/build/images/fuchsia/fuchsia_prime_assembly/fvm.blob.sparse.blk obj/build/images/fuchsia/fuchsia_prime_assembly/gen/blob.manifest obj/build/images/fuchsia/fuchsia_prime_assembly/gen/blobs.json obj/build/images/fuchsia/fuchsia_prime_assembly/gen/data/static_packages obj/build/images/fuchsia/fuchsia_prime_assembly/gen/data/cache_packages obj/build/images/fuchsia/fuchsia_prime_assembly/gen/system_image/meta/package obj/build/images/fuchsia/fuchsia_prime_assembly/base_package_manifest.json obj/build/images/fuchsia/fuchsia_prime_assembly/fvm.fastboot.blk

../../build/gn_run_binary.sh ../../prebuilt/third_party/clang/linux-x64/bin host_x64/ffx --env .ffx.env --config assembly_enabled=true assembly image --product obj/build/images/fuchsia/fuchsia_prime_assembly_product_config.json --board obj/build/images/fuchsia/fuchsia_prime_assembly_board_config.json --gendir obj/build/images/fuchsia/fuchsia_prime_assembly/gen --outdir obj/build/images/fuchsia/fuchsia_prime_assembly

BUG: An internal command error occurred.

Failed to build the blobfs

Caused by:

    Failed to generate blobfs with status: exit status: 255

ninja: build stopped: subcommand failed.

[Amit Uttamchandani]

@Aidan Wolter @Aaron Wood looks to be an assembly issue.

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[Aidan Wolter]

This is indeed happening during Assembly.

The ffx assembly tool calls out to the blobfs tool, which is where this 255 exit status is coming from.

Unfortunately, there is no other stderr, otherwise, we would have printed it here.

It does not appear that the blobfs tool has changed recently.

I synced to HEAD and was not able to reproduce this error.

When I have seen this error in the past it was due to blobfs being unable to find a file to shove into the filesystem. Here is how this process works:

1. ffx assembly generates a blob.manifest indicating the location of every file to put in blobfs, relative to the blob.manifest itself.

2. ffx assembly exec's blobfs and passes the blob.manifest.

3. blobfs iterates over every blob, compresses it, and puts it into the blob.blk file.

It could be that the blob.manifest file is pointing to a file that does not exist, or the path is not correctly relative to the blob.manifest.

I would first try `fx clean && fx gen && fx build` to nuke the generated files and start fresh.

If that does not work, can you share your blob.manifest file?

- Aidan

[janemba cap]

Thank you idan, I run the `fx` combo and I could build fuchsia.

Thx

[Aidan Wolter]

I'm glad to hear it is working!

- Aidan