死机处日志如下:
imac osinstalleupd[585]:target is not convertible tu apfs:你无法安装到此宗卷,因为它无法转换为APPLE 文件系统。
imac osishelperd[602]:failed to prep /volumes/os x bade system 1 for brtool
imac opendirectoryd[186]:[default] failed to open file <private>[2:no such file or directory]