配置iSCSI设备时遇到的问题，出现此错误：
IOError: [Errno 1] Operation not permitted: '/sys/kernel/config/target/core/iblock_1/sbd/udev_path'
看起来像某种内核强化错误。我找不到很多建议来解决它。我当然是作为一个根。
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'
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