5. 安装启动块及刷新启动盘WWN
根文件系统备份完成后，要进入单用户在启动盘的0号分区安装启动块，并刷新WWN
root@xz_netman # cd /etc
root@xz_netman # more vfstab
#device device mount FS fsck mount mount
#to mount to fsck point type pass at boot options
#
#/dev/dsk/c1d0s2 /dev/rdsk/c1d0s2 /usr ufs 1 yes -
fd - /dev/fd fd - no -
/proc - /proc proc - no -
/dev/dsk/c1t0d0s1 - - swap - no -
/dev/dsk/c1t0d0s0 /dev/rdsk/c1t0d0s0 / ufs 1 no
-
swap - /tmp tmpfs - yes -
root@xz_netman # more vfstab－INSTALL
#device device mount FS fsck mount mount
#to mount to fsck point type pass at boot options
#
#/dev/dsk/c1d0s2 /dev/rdsk/c1d0s2 /usr ufs 1 yes -
fd - /dev/fd fd - no -
/proc - /proc proc - no -
/dev/dsk/ c1t0d0s1 - - swap - no -
#/dev/dsk/c1t0d0s1 - - swap - no -
/dev/dsk/d10 /dev/rdsk/ c1t0d0s0 / ufs 1 no logging
swap - /tmp tmpfs - yes -
root@xz_netman # cp vfstab-I* vfstab //将现在的vfstab文件还原为镜像前的状态
root@xz_netman # more vfstab //确认还原成功
root@xz_netman # TERM=vt100;export TERM
root@xz_netman # vi system //将 rootdev:/pseudo/md@0:0,10,blk 项注释掉
注：因为从1号盘把系统备份到0号盘时，1号盘上的镜像还没有拆除，所以备份完成后，此时的0号盘上还是“镜像状态”，为了下面从0号盘单盘启动正常，必须把镜像彻底拆除。
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root@xz_netman # cd /mnt
root@xz_netman # rm restoresymtable
root@xz_netman # cd
root@xz_netman # umount /mnt
root@xz_netman # init 0
root@xz_netman #
INIT: New run level: 0
The system is coming down. Please wait.
System services are now being stopped.
stopping NetWorker daemons:
nsr_shutdown -a –q
打印服务已停止。
Mar 21 02:12:41 xz_netman syslogd: going down on signal 15
+4h43m30s Alarm 3 ON
The system is down.
syncing file systems... done
Program terminated
{0} ok boot cdrom -s
Boot device: /pci@8,700000/scsi@6/disk@6,0:f File and args: -s
SunOS Release 5.8 Version Generic_108528-22 64-bit
Copyright 1983-2003 Sun Microsystems, Inc. All rights reserved.
Configuring /dev and /devices
Using RPC Bootparams for network configuration information.
Skipping interface fcip0
SUNW,hme0 : No response from Ethernet network : Link down -- cable problem?
Skipping interface hme0
Skipping interface eri0
\
INIT: SINGLE USER MODE
# cd /usr/platform/sun4u/lib/fs/ufs
# installboot bootblk /dev/rdsk/c1t0d0s0 //安装启动块
# mount /dev/dsk/c1t0d0s0 /a
# drvconfig -r /a -p /a/etc/path_to_inst
# cd /devices
# find . -print | cpio -pduVm /a/devices
..............................
0 blocks
# disks -r /a
# devlinks -r /a
# luxadm set_boot_dev /dev/dsk/c1t0d0s0
Do you want to change boot-device to the new setting? (y/n) y
root@xz_netman # reboot - - -r //此处之所以要加-r 参数 是要系统重新识别一下这个0号盘，不然如果直接boot会有报错，具体信息见附件
syncing file systems... done
rebooting...
R
LOM event: +5h34m29s host reset
screen not found.
keyboard not found.
Keyboard not present. Using lom-console for input and output.
Sun Netra T4 (2 X UltraSPARC-III+) , No Keyboard
Copyright 1998-2002 Sun Microsystems, Inc. All rights reserved.
OpenBoot 4.5, 2048 MB memory installed, Serial #52968011.
Ethernet address 0:3:ba:28:3a:4b, Host ID: 83283a4b.
Rebooting with command: boot -r
Boot device: /pci@8,600000/SUNW,qlc@4/fp@0,0/disk@w21000014c33883a9,0:a File and args: -r
SunOS Release 5.8 Version Generic_108528-19 64-bit
Copyright 1983-2001 Sun Microsystems, Inc. All rights reserved.
Sourcing //.profile-EIS.....
root@xz_netman #
root@xz_netman # metastat //因为6号分区没有备份，所以metadb也就不存在
metastat: xz_netman: there are no existing databases
root@xz_netman #cd
root@xz_netman #mkdir
root@xz_netman #prtdiag –v
root@xz_netman #rm
root@xz_netman #su
root@xz_netman #df –k
注：以上是对备份的系统是否正常的检查，此时要求客户启动业务，查看应用是否正常，若应用正常，则可以确定本次系统dump成功，可以更换另一个盘，并重新镜像。
