rootfs generation failed : permission denied in do_rootfs

Start with the do_rootfs call in image.bbclass and follow the traceback through oe/rootfs.py and oe/package_manager.py to the subprocess PermissionError. Reproduce the clean project generation described in the issue and identify which executable or path fails. Done means the zcu104_dpu rootfs task completes successfully without the permission-denied error.

Hello,

I am trying to create the petalinux project in zcu104_dpu,

make -C petalinux all XSA_DIR=/hdd-raid0/home_server/mathieu/Documents/Xilinx/vitis/Vitis_Embedded_Platform_Source/Xilinx_Official_Platforms/zcu104_dpu/vivado/ PLATFORM=zcu104_dpu

The process is almost done :

NOTE: Tasks Summary: Attempted 8618 tasks of which 8617 didn't need to be rerun and 1 failed.

this task is the rootfs generation :

Xilinx/Petalinux/2019.2/components/yocto/source/aarch64/layers/core/meta/classes/image.bbclass', lineno: 245, function: do_rootfs
*** 0245: create_rootfs(d, progress_reporter=progress_reporter, logcatcher=logcatcher)

Xilinx/Petalinux/2019.2/components/yocto/source/aarch64/layers/core/meta/lib/oe/rootfs.py', lineno: 965, function: create_rootfs
dpkgRootfs(d, manifest_dir, progress_reporter, logcatcher).create()

Xilinx/Petalinux/2019.2/components/yocto/source/aarch64/layers/core/meta/lib/oe/rootfs.py', lineno: 210, function: create
self.pm.run_intercepts()

Xilinx/Petalinux/2019.2/components/yocto/source/aarch64/layers/core/meta/lib/oe/package_manager.py', lineno: 443, function: run_intercepts
output = subprocess.check_output(script_full, stderr=subprocess.STDOUT)

Xilinx/Petalinux/2019.2/components/yocto/source/aarch64/buildtools/sysroots/x86_64-petalinux-linux/usr/lib/python3.5/subprocess.py', lineno: 316, function: check_output
0315: return run(*popenargs, stdout=PIPE, timeout=timeout, check=True,
*** 0316: **kwargs).stdout

Xilinx/Petalinux/2019.2/components/yocto/source/aarch64/buildtools/sysroots/x86_64-petalinux-linux/usr/lib/python3.5/subprocess.py', lineno: 383, function: run
*** 0383: with Popen(*popenargs, **kwargs) as process:

Xilinx/Petalinux/2019.2/components/yocto/source/aarch64/buildtools/sysroots/x86_64-petalinux-linux/usr/lib/python3.5/subprocess.py', lineno: 1296, function: _execute_child
*** 1296: raise child_exception_type(errno_num, err_msg)

the sample code is below :

`

if issubclass(child_exception_type, OSError) and hex_errno: 
                errno_num = int(hex_errno, 16)
                child_exec_never_called = (err_msg == "noexec")
                if child_exec_never_called:
                    err_msg = ""
                if errno_num != 0:
                    err_msg = os.strerror(errno_num)
                    if errno_num == errno.ENOENT:
                        if child_exec_never_called:
                            # The error must be from chdir(cwd).
                            err_msg += ': ' + repr(cwd) + 'ERROR 1'
                        else:
                            err_msg += ': ' + repr(orig_executable)
                            + 'ERROR 2'
                raise child_exception_type(errno_num, err_msg)
            raise child_exception_type(err_msg)

`

I tried to find which file/directory hasn't the right permission or doesn't exist, however I didn't find the information since the error message contain only :

Exception: PermissionError: [Errno 13] Permission denied

I tried to clean the project and restart the generation but I obtain the same error.

Do you have any suggestions ?

Thank you