SUN 60的问题

[weixin_38066102]

一台SUN60 的机器，开机后重复出现
network link setup failed.   
please check cable and try again.   
timeout waiting for ARP/RARP packet.


在OK下BOOT CDROM重复出现如下错误：
WARNING: Device sd0 failed to power up.
WARNING: Please see your system administrator or reboot.

WARNING:/pci@If,4000/SCSI@3/sd@6,0(sd6).
Error for Command:read(10)        Error level:Retryable
Requested Bloock:68304            Error Block:68304
vendor:TOSHIBA                    Serial Number:12/20/00
sense key:Media Error
ASC:0x57 (unable to recover TOC),ASCQ:0x0,FRU:0x0


小弟菜鸟一个，求各位大哥大姐们指点！