高手请帮忙!!!

[weixin_38051062]

我昨天给系统装几个软件包,装到1/3时光驱坏了,重起后发现linux进不去了.只好用光盘重新安装.装到一半时出现警告,然后就自己退出来了.
   在重新启动时启动菜单没了,屏幕上显示:
  GRUB Nersion 0.92(693K lower/129984k upper menory [Minimal BASH-like line editing is supported. For the first word Tablist possible command completions. Anywhere else Tab list the possible completion of a device/filename]
grub>;_
我一按Tab键,出现:
Possible command are bckground blocklist boot border chainloader cmp color configfile debug displaym displaymen display embed find foreground fstest geometry halt help hide impsprobe initrd md5crypt module nounzip pager partnew parttype password pause savedefault serial setkey setup shade splashimage terminal testload testve unhide uppermen vbeprobe viewport
我后来试着用启动盘再引导时出现:
kernel panic: No init found
                     Try passing initption to kernel
现在我连dos也进不去,求各位高手大大教点高招