cobbler sync fails with error "[Errno 13] Permissio n denied: '/var/lib/tftpboot/aarch64/<file>' ".

Solution Verified - Updated -

Environment

  • Red Hat Satellite v 5.7
  • Red Hat Enterprise Linux v.6/v.7
  • cobbler

Issue

  • Cobbler sync fails with error,
[DefaultQuartzScheduler_Worker-2] ERROR com.redhat.rhn.taskomatic.task.CobblerSyncTask  - Runtim
eExceptionError trying to sync to cobbler: redstone.xmlrpc.XmlRpcFault: <type 'exceptions.IOError'>:[Errno 13] Permissio
n denied: '/var/lib/tftpboot/aarch64/grub.cfg'
  • OR fails with, 
copying: /var/lib/cobbler/loaders/bootaa64.efi -> /var/lib/tftpboot/.link_cache/0b9088ebb3f32aa9a248eb8770107dfcb233b564
copying: /var/lib/cobbler/loaders/bootaa64.efi -> /var/lib/tftpboot/aarch64/bootaa64.efi
Exception occured: <type 'exceptions.OSError'>
Exception value: [Errno 13] Permission denied: '/var/lib/tftpboot/aarch64/bootaa64.efi'
Exception Info:
  File "/usr/lib/python2.6/site-packages/cobbler/remote.py", line 95, in run
    rc = self._run(self)

Resolution

  • This is a known bug for package selinux-policy for Red Hat Enterprise Linux v.6/v.7, refer the public bugzilla links mentioned below for more information,
    Bug 1213540 - RHEL7
    Bug 1213539 - RHEL6

  • A "permanent workaround" for this issue is to add the selinux context definitions for the new directories by hand using semanage (provided by the policycoreutils-python rpm),

# semanage fcontext -a -t cobbler_var_lib_t "/var/lib/tftpboot/aarch64(/.*)?"
# semanage fcontext -a -t cobbler_var_lib_t "/var/lib/tftpboot/images2(/.*)?"
# restorecon -R -v /var/lib/tftpboot/
  • Once done execute,
 # cobbler sync

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