dd启动时提示

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在系统下执行
dd if=/ dev/ rdsk/ c0t2d0s2 of=/ dev/ rdsk/ c0t3d0s2 bs=1024k count=1

用c0t3d0启动提示如下:
Rebooting with command: boot disk3                                    
Boot device: /pci@1f,4000/scsi@3/disk@3,0  File and args:
Boot load failed.
The file just loaded does not appear to be executable.



解决办法:
boot cdrom -s

# fsck /dev/rdsk/c0t3d0s0
** /dev/rdsk/c0t3d0s0
BAD SUPER BLOCK: BAD VALUES IN SUPER BLOCK
USE AN ALTERNATE SUPER-BLOCK TO SUPPLY NEEDED INFORMATION;
eg. fsck [-F ufs] -o b=# [special ...]
where # is the alternate super block. SEE fsck_ufs(1M).

#fsck -y -F ufs -o b=32 /dev/rdsk/c0t3d0s0



# mount /dev/dsk/c0t0d0s0 /a
    # cp /platform/`uname -m`/ufsboot /a/platform/`uname -m`/
    # umount /a
    # reboot

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