Starting the yast Bootl Loader fails with an error message in a Ruby script.
Since i was not able to capture the error message from the screen I attach below the relevant lines from the y2log file. Basically it complains about missing tmpfs.

Instaling a new kernel from sources with make install works by calling dracut framework.



"2014-11-06 12:46:10 <3> lintosh.hlevca.com(6850) [Ruby] yast/wfm.rb:197 Client call failed with 'Unknown device tmpfs' and backtrace ["/usr/share/YaST2/lib/bootloader/device_mapping.rb:65:in `to_mountby_device'", "/usr/share/YaST2/modules/BootStorage.rb:219:in `block in InitDiskInfo'", "/usr/lib64/ruby/vendor_ruby/2.1.0/yast/builtins.rb:88:in `call'", "/usr/lib64/ruby/vendor_ruby/2.1.0/yast/builtins.rb:88:in `block in foreach'", "/usr/lib64/ruby/vendor_ruby/2.1.0/yast/builtins.rb:87:in `each'", "/usr/lib64/ruby/vendor_ruby/2.1.0/yast/builtins.rb:87:in `foreach'", "/usr/share/YaST2/modules/BootStorage.rb:217:in `InitDiskInfo'", "/usr/share/YaST2/include/bootloader/routines/lib_iface.rb:83:in `SetDiskInfo'", "/usr/share/YaST2/include/bootloader/routines/lib_iface.rb:133:in `InitializeLibrary'", "/usr/share/YaST2/modules/BootGRUB2.rb:50:in `Read'", "/usr/lib64/ruby/vendor_ruby/2.1.0/yast/fun_ref.rb:33:in `call'", "/usr/lib64/ruby/vendor_ruby/2.1.0/yast/fun_ref.rb:33:in `call'", "/usr/share/YaST2/include/bootloader/routines/switcher.rb:101:in `blRead'", "/usr/share/YaST2/modules/Bootloader.rb:195:in `Read'", "/usr/share/YaST2/include/bootloader/routines/dialogs.rb:56:in `ReadDialog'", "/usr/share/YaST2/include/bootloader/routines/wizards.rb:94:in `block in BootloaderSequence'", "/usr/lib64/ruby/vendor_ruby/2.1.0/yast/builtins.rb:541:in `call'", "/usr/lib64/ruby/vendor_ruby/2.1.0/yast/builtins.rb:541:in `eval'", "/usr/share/YaST2/modules/Sequencer.rb:268:in `WS_run'", "/usr/share/YaST2/modules/Sequencer.rb:340:in `Run'", "/usr/share/YaST2/include/bootloader/routines/wizards.rb:115:in `BootloaderSequence'", "/usr/share/YaST2/clients/bootloader.rb:117:in `GuiHandler'", "/usr/lib64/ruby/vendor_ruby/2.1.0/yast/fun_ref.rb:33:in `call'", "/usr/lib64/ruby/vendor_ruby/2.1.0/yast/fun_ref.rb:33:in `call'", "/usr/share/YaST2/modules/CommandLine.rb:1591:in `Run'", "/usr/share/YaST2/clients/bootloader.rb:105:in `main'", "/usr/share/YaST2/clients/bootloader.rb:192:in `<top (required)>'", "/usr/lib64/ruby/vendor_ruby/2.1.0/yast/wfm.rb:184:in `eval'", "/usr/lib64/ruby/vendor_ruby/2.1.0/yast/wfm.rb:184:in `run_client'"]
2014-11-06 12:46:10 <3> lintosh.hlevca.com(6850) [Ruby] yast/wfm.rb:202 Internal error. Please report a bug report with logs.
Details: Unknown device tmpfs
Caller:  /usr/share/YaST2/lib/bootloader/device_mapping.rb:65:in `to_mountby_device'
2014-11-06 12:46:10 <1> lintosh.hlevca.com(6850) [ui] YPushButton.cc(setFunctionKey):202 Guessing button role YOKButton for YPushButton "OK" at 0x7f42c0707440 from function key F10
2014-11-06 12:46:39 <3> lintosh.hlevca.com(6850) [ui] YUI.cc(~YUI):94 1 open dialogs left over
2014-11-06 12:46:39 <5> lintosh.hlevca.com(6850) [zypp] ZYppFactory.cc(sigsegvHandler):53 Error: signal 11"