Pfthb

Facing issue while configuring iSCSI devices, getting this error:

IOError: [Errno 1] Operation not permitted: '/sys/kernel/config/target/core/iblock_1/sbd/udev_path'

Looks like some kind of kernel hardening error. I cannot fix it with many suggestions I found. And I am of course doing it as a root.

xxxxxx:/tmp # targetcli

targetcli shell version 2.1.fb43
Copyright 2011-2013 by Datera, Inc and others.
For help on commands, type 'help'.

/backstores/fileio> cd ..

/backstores> cd block

/backstores/block> ls

o- block ...................................................................................................... [Storage Objects: 0]

/backstores/block> create sbd /dev/cluster/sbd

Traceback (most recent call last):


 File "/usr/bin/targetcli", line 121, in <module>
 main()
 File "/usr/bin/targetcli", line 111, in main
 shell.run_interactive()
 File "/usr/lib/python2.7/site-packages/configshell_fb/shell.py", line 894, in run_interactive
 self._cli_loop()
 File "/usr/lib/python2.7/site-packages/configshell_fb/shell.py", line 723, in _cli_loop
 self.run_cmdline(cmdline)
 File "/usr/lib/python2.7/site-packages/configshell_fb/shell.py", line 837, in run_cmdline
 self._execute_command(path, command, pparams, kparams)
 File "/usr/lib/python2.7/site-packages/configshell_fb/shell.py", line 812, in _execute_command
 result = target.execute_command(command, pparams, kparams)
 File "/usr/lib/python2.7/site-packages/configshell_fb/node.py", line 1406, in execute_command
 return method(*pparams, **kparams)
 File "/usr/lib/python2.7/site-packages/targetcli/ui_backstore.py", line 409, in ui_command_create
 so = BlockStorageObject(name, dev, readonly=readonly, wwn=wwn)
 File "/usr/lib/python2.7/site-packages/rtslib_fb/tcm.py", line 670, in __init__
 self._configure(dev, wwn, readonly)
 File "/usr/lib/python2.7/site-packages/rtslib_fb/tcm.py", line 684, in _configure
 self._set_udev_path(dev)
 File "/usr/lib/python2.7/site-packages/rtslib_fb/tcm.py", line 138, in _set_udev_path
 fwrite(path, "%s" % udev_path)
 File "/usr/lib/python2.7/site-packages/rtslib_fb/utils.py", line 72, in fwrite
 with open(path, 'w') as file_fd:
 IOError: [Errno 1] Operation not permitted: '/sys/kernel/config/target/core/iblock_1/sbd/udev_path'

Regards,
Vera