我刚刚开始使用yocto项目，并试图为x86架构构建一个映像，以便使用QEMU模拟器（在Ubuntu 16.04上运行）进行模拟。我在构建OS映像时遇到以下错误。
ERROR: core-image-sato-1.0-r0 do_rootfs: Error executing a python function in exec_python_func() autogenerated:
The stack trace of python calls that resulted in this exception/failure was:
File: 'exec_python_func() autogenerated', lineno: 2, function: <module>
0001:
*** 0002:do_rootfs(d)
0003:
File: '/home/rahul/poky/poky/meta/classes/image.bbclass', lineno: 258, function: do_rootfs
0254: progress_reporter.next_stage()
0255:
0256: # generate rootfs
0257: d.setVarFlag('REPRODUCIBLE_TIMESTAMP_ROOTFS', 'export', '1')
*** 0258: create_rootfs(d, progress_reporter=progress_reporter, logcatcher=logcatcher)
0259:
0260: progress_reporter.finish()
0261:}
0262:do_rootfs[dirs] = "${TOPDIR}"
File: '/home/rahul/poky/poky/meta/lib/oe/rootfs.py', lineno: 1010, function: create_rootfs
1006: env_bkp = os.environ.copy()
1007:
1008: img_type = d.getVar('IMAGE_PKGTYPE')
1009: if img_type == "rpm":
*** 1010: RpmRootfs(d, manifest_dir, progress_reporter, logcatcher).create()
1011: elif img_type == "ipk":
1012: OpkgRootfs(d, manifest_dir, progress_reporter, logcatcher).create()
1013: elif img_type == "deb":
1014: DpkgRootfs(d, manifest_dir, progress_reporter, logcatcher).create()
File: '/home/rahul/poky/poky/meta/lib/oe/rootfs.py', lineno: 201, function: create
0197: if self.progress_reporter:
0198: self.progress_reporter.next_stage()
0199:
0200: # call the package manager dependent create method
*** 0201: self._create()
0202:
0203: sysconfdir = self.image_rootfs + self.d.getVar('sysconfdir')
0204: bb.utils.mkdirhier(sysconfdir)
0205: with open(sysconfdir + "/version", "w+") as ver:
File: '/home/rahul/poky/poky/meta/lib/oe/rootfs.py', lineno: 450, function: _create
0446: rpm_pre_process_cmds = self.d.getVar('RPM_PREPROCESS_COMMANDS')
0447: rpm_post_process_cmds = self.d.getVar('RPM_POSTPROCESS_COMMANDS')
0448:
0449: # update PM index files
*** 0450: self.pm.write_index()
0451:
0452: execute_pre_post_process(self.d, rpm_pre_process_cmds)
0453:
0454: if self.progress_reporter:
File: '/home/rahul/poky/poky/meta/lib/oe/package_manager.py', lineno: 543, function: write_index
0539:
0540: def write_index(self):
0541: lockfilename = self.d.getVar('DEPLOY_DIR_RPM') + "/rpm.lock"
0542: lf = bb.utils.lockfile(lockfilename, False)
*** 0543: RpmIndexer(self.d, self.rpm_repo_dir).write_index()
0544: bb.utils.unlockfile(lf)
0545:
0546: def insert_feeds_uris(self, feed_uris, feed_base_paths, feed_archs):
0547: from urllib.parse import urlparse
File: '/home/rahul/poky/poky/meta/lib/oe/package_manager.py', lineno: 105, function: write_index
0101: else:
0102: signer = None
0103:
0104: createrepo_c = bb.utils.which(os.environ['PATH'], "createrepo_c")
*** 0105: result = create_index("%s --update -q %s" % (createrepo_c, self.deploy_dir))
0106: if result:
0107: bb.fatal(result)
0108:
0109: # Sign repomd
File: '/home/rahul/poky/poky/meta/lib/oe/package_manager.py', lineno: 21, function: create_index
0017:def create_index(arg):
0018: index_cmd = arg
0019:
0020: bb.note("Executing '%s' ..." % index_cmd)
*** 0021: result = subprocess.check_output(index_cmd, stderr=subprocess.STDOUT, shell=True).decode("utf-8")
0022: if result:
0023: bb.note(result)
0024:
0025:"""
File: '/usr/lib/python3.5/subprocess.py', lineno: 626, function: check_output
0622: # empty string. That is maintained here for backwards compatibility.
0623: kwargs['input'] = '' if kwargs.get('universal_newlines', False) else b''
0624:
0625: return run(*popenargs, stdout=PIPE, timeout=timeout, check=True,
*** 0626: **kwargs).stdout
0627:
0628:
0629:class CompletedProcess(object):
0630: """A process that has finished running.
File: '/usr/lib/python3.5/subprocess.py', lineno: 708, function: run
0704: raise
0705: retcode = process.poll()
0706: if check and retcode:
0707: raise CalledProcessError(retcode, process.args,
*** 0708: output=stdout, stderr=stderr)
0709: return CompletedProcess(process.args, retcode, stdout, stderr)
0710:
0711:
0712:def list2cmdline(seq):
Exception: subprocess.CalledProcessError: Command '/home/rahul/poky/poky/build/tmp/work/qemux86-poky-linux/core-image-sato/1.0-r0/recipe-sysroot-native/usr/bin/createrepo_c --update -q /home/rahul/poky/poky/build/tmp/work/qemux86-poky-linux/core-image-sato/1.0-r0/oe-rootfs-repo' returned non-zero exit status 1
Subprocess output:
Temporary repodata directory /home/rahul/poky/poky/build/tmp/work/qemux86-poky-linux/core-image-sato/1.0-r0/oe-rootfs-repo/.repodata/ already exists! (Another createrepo process is running?)
ERROR: core-image-sato-1.0-r0 do_rootfs: Function failed: do_rootfs
ERROR: Logfile of failure stored in: /home/rahul/poky/poky/build/tmp/work/qemux86-poky-linux/core-image-sato/1.0-r0/temp/log.do_rootfs.5019
ERROR: Task (/home/rahul/poky/poky/meta/recipes-sato/images/core-image-sato.bb:do_rootfs) failed with exit code '1'
生成进程的运行率高达90%，在此之后会出现此错误，从而终止进程。可能是什么问题？
最佳答案
当我的主机突然关闭时，我也遇到了同样的错误，但是在我用.repodata删除sudo rm -r build/tmp/work/qemux86-poky-linux/core-image-sato/1.0-r0/oe-rootfs-repo/.repodata/文件夹，然后重新构建之后，一切都正常。
关于c - yocto项目中的do_rootfs函数失败，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/50015694/