各位，帮忙看下是什么问题导致系统不能启动

szleo

Sun Fire 480R, No Keyboard
Copyright 1998-2004 Sun Microsystems, Inc.  All rights reserved.
OpenBoot 4.13.0, 8192 MB memory installed, Serial #60495085.
Ethernet address 0:3:ba:9b:14:ed, Host ID: 839b14ed.





Boot device: /pci@9,600000/SUNW,qlc@2/fp@0,0/disk@w21000004cfffdb4e,0:b  File an
d args:
SunOS Release 5.8 Version Generic_108528-13 64-bit
Copyright 1983-2001 Sun Microsystems, Inc.  All rights reserved.
WARNING: forceload of misc/md_trans failed
WARNING: forceload of misc/md_raid failed
WARNING: forceload of misc/md_hotspares failed
WARNING: forceload of misc/md_sp failed
/sbin/rcS: /dev/null: cannot create
/sbin/rcS: /dev/null: cannot create
/sbin/rcS: /dev/null: cannot create
/sbin/rcS: /dev/null: cannot create
ifconfig: plumb: none: Bad file number
/sbin/rcS: /dev/null: cannot create
/sbin/rcS: /dev/null: cannot create
/sbin/rcS: /etc/dhcp.: cannot open
/sbin/rcS: /dev/null: cannot create
moving addresses from failed IPv4 interfaces: none (couldn't move, no alternativ
e interface).
Hostname: unknown
/sbin/rcS: /usr/bin/loadkeys: not found
/sbin/rcS: /dev/null: cannot create
/etc/rcS.d/S35lvm.init: rm: not found
/sbin/swapadd: expr: not found

WARNING - /usr/sbin/fsck not found.  Most likely the
mount of /usr failed or the /usr filesystem is badly
damaged.  The system is being halted.  Either reinstall
the system or boot with the -b option in an attempt
to recover.

syncing file systems... done
Program terminated

hjp1973

/usr 文件系统损坏,需要从磁带恢复

chenpp

可能硬盘有问题吧

风之幻想

试着看看能不能进单用户状态.看能不能fsck看一下情况如何.

maping

[quote]原帖由 "风之幻想"]试着看看能不能进单用户状态.看能不能fsck看一下情况如何.[/quote 发表：

我也是这个意见。
  
等待楼主的结果！