[yocto] can not build yocto on NFS mounted NAS

[Robert Berger]

Hi,

I tried to build to build bitbake core-image-minimal-dev on some nfs
mounted NAS.

Pseudo is not present but is required, building this first before the
main build
Parsing recipes: 100%
|###################################################################################################################################|
Time: 00:00:20
Parsing of 819 .bb files complete (0 cached, 819 parsed). 1126 targets,
47 skipped, 0 masked, 0 errors.

Build Configuration:
BB_VERSION        = "1.18.0"
BUILD_SYS         = "x86_64-linux"
NATIVELSBSTRING   = "Ubuntu-12.04"
TARGET_SYS        = "arm-poky-linux-gnueabi"
MACHINE           = "beagle-xm-ml"
DISTRO            = "poky"
DISTRO_VERSION    = "1.4.1"
TUNE_FEATURES     = "armv7a vfp neon"
TARGET_FPU        = "vfp-neon"
meta
meta-yocto
meta-yocto-bsp    =
"beagleboard_dylan-9.0.1_LOCAL:73f103bf9b2cdf985464dc53bf4f1cfd71d4531f"

It fails pretty soon with:

ERROR: Error executing a python function in
/yoctotmp/manual-build/poky/meta/recipes-devtools/quilt/quilt-native_0.60.bb:
CalledProcessError: Command 'cp -al
/yoctotmp/manual-build/poky/beagle-xm/tmp/work/x86_64-linux/quilt-native/0.60-r0/sysroot-destdir/yoctotmp/manual-build/poky/beagle-xm/tmp/sysroots/x86_64-linux/*
/yoctotmp/manual-build/poky/beagle-xm/tmp/work/x86_64-linux/quilt-native/0.60-r0/sstate-build-populate-sysroot/x86_64-linux'
returned non-zero
 exit status 1 with output cp: cannot create hard link
`/yoctotmp/manual-build/poky/beagle-xm/tmp/work/x86_64-linux/quilt-native/0.60-r0/sstate-build-populate-sysroot/x86
_64-linux/usr/share/quilt/compat/awk' to
`/yoctotmp/manual-build/poky/beagle-xm/tmp/work/x86_64-linux/quilt-native/0.60-r0/sysroot-destdir/yoctotmp/manual-build/poky/beag
le-xm/tmp/sysroots/x86_64-linux/usr/share/quilt/compat/awk': Unknown
error 524

A bit of further digging reveals that underneath
/yoctotmp/manual-build/poky/beagle-xm/tmp/work/x86_64-linux/quilt-native/0.60-r0/sysroot-destdir/yoctotmp/manual-build/poky/beagle-xm/tmp/sysroots/x86_64-linux/*
we have a symbolic link to
/yoctotmp/manual-build/poky/beagle-xm/tmp/work/x86_64-linux/quilt-native/0.60-r0/sysroot-destdir/yoctotmp/manual-build/poky/beagle-xm/tmp/sysroots/x86_64-linux/usr/share/quilt/compat/awk
-> /usr/bin/gawk

Since hard links can not be made between different file systems (local
ext4 and nfs) the cp -al fails.

Is it like this by design, or should I file a bug in bugzilla?

Previous experiments (only SSTATE and DL from NFS/NAS) seem to work and
I guess that's also your autobuilder cluster setup.

Regards,

Robert
...Under a government which imprisons any unjustly, the true place for a
just man is also a prison. -- Henry David Thoreau

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