Hi, makdumpfile doesn't support -F option on xen. The following patch support it. Signed-off-by: Akio Takebe <takebe_akio at jp.fujitsu.com> Best Regards, Akio Takebe --- makedumpfile/makedumpfile.c.orig 2007-11-14 20:34:36.000000000 +0900 +++ makedumpfile/makedumpfile.c 2008-01-28 13:50:34.000000000 +0900 @@ -5803,12 +5803,22 @@ handle_xen() if (!create_dump_bitmap_xen()) goto out; + if (info->flag_flatten) { + if (!write_start_flat_header()) + goto out; + } + if (!write_elf_header()) goto out; if (!write_elf_pages()) goto out; + if (info->flag_flatten) { + if (!write_end_flat_header()) + goto out; + } + if (!close_files_for_creating_dumpfile()) goto out;