dd后换盘，从镜像盘启动系统的一种简便方法

amin_cu

本文链接：http://user.qzone.qq.com/77923488/blog/1210217041

dd后换盘，从镜像盘启动系统的一种简便方法2-1 标题：dd后换盘，从镜像盘启动系统的一种简便方法 作者；小民 背景： 有2块光纤硬盘，分别是系统盘c1t1d1和镜像盘c2t2d2； 计划用dd工具给系统盘作镜像，把镜像盘和系统盘交换槽位，从镜像盘启动系统。 网上有关光纤硬盘的资料操作步骤过于繁复，很容易出错，笔者至今还未试验成功。 笔者另辟蹊径，只需修改镜像盘里/dev/dsk/c1t1d1和/dev/rdsk/c1t1d1相关的链接即可，未知有什么负面影响，请达人指教。 以下是笔者的具体操作步骤。 Last login: Wed May  7 10:28:51 2008 from 192.168.176.136 Sun Microsystems Inc.   SunOS 5.10      Generic January 2005 $ su 口令: # uname -a SunOS No12webser 5.10 Generic_127111-09 sun4u sparc SUNW,Sun-Fire-880 # # format Searching for disks...done AVAILABLE DISK SELECTIONS:        0. c1t1d1 <SUN72G cyl 14087 alt 2 hd 24 sec 424>          /pci@8,600000/SUNW,qlc@2/fp@0,0/ssd@w500000e010373291,0        1. c2t2d2 <SUN72G cyl 14087 alt 2 hd 24 sec 424>          /pci@8,600000/SUNW,qlc@2/fp@0,0/ssd@w500000e01036d021,0 Specify disk (enter its number): ^C # # dd if=/dev/rdsk/c1t1d1s2 of=/dev/rdsk/c2t2d2s2 bs=8192k # # mkdir  /mnt/c2t2d2 # mount /dev/dsk/c2t2d2s0  /mnt/c2t2d2/ # ls -l  /dev/dsk/c2t2* lrwxrwxrwx   1 root     root          70  4月  7日 16:57 /dev/dsk/c2t2d2s0 ->../../devices/pci@8,600000/SUNW,qlc@2/fp@0,0/ssd@w500000e01036d021,0:a lrwxrwxrwx   1 root     root          70  4月  7日 16:57 /dev/dsk/c2t2d2s1 ->../../devices/pci@8,600000/SUNW,qlc@2/fp@0,0/ssd@w500000e01036d021,0:b lrwxrwxrwx   1 root     root          70  4月  7日 16:57 /dev/dsk/c2t2d2s2 ->../../devices/pci@8,600000/SUNW,qlc@2/fp@0,0/ssd@w500000e01036d021,0:c lrwxrwxrwx   1 root     root          70  4月  7日 16:57 /dev/dsk/c2t2d2s3 ->../../devices/pci@8,600000/SUNW,qlc@2/fp@0,0/ssd@w500000e01036d021,0:d lrwxrwxrwx   1 root     root          70  4月  7日 16:57 /dev/dsk/c2t2d2s4 ->../../devices/pci@8,600000/SUNW,qlc@2/fp@0,0/ssd@w500000e01036d021,0:e lrwxrwxrwx   1 root     root          70  4月  7日 16:57 /dev/dsk/c2t2d2s5 ->../../devices/pci@8,600000/SUNW,qlc@2/fp@0,0/ssd@w500000e01036d021,0:f lrwxrwxrwx   1 root     root          70  4月  7日 16:57 /dev/dsk/c2t2d2s6 ->../../devices/pci@8,600000/SUNW,qlc@2/fp@0,0/ssd@w500000e01036d021,0:g lrwxrwxrwx   1 root     root          70  4月  7日 16:57 /dev/dsk/c2t2d2s7 ->../../devices/pci@8,600000/SUNW,qlc@2/fp@0,0/ssd@w500000e01036d021,0:h # # ls -l  /mnt/c2t2d2/dev/dsk/c2t2* lrwxrwxrwx   1 root     root          70  4月  7日 16:57 /mnt/c2t2d2/dev/dsk/c2t2d2s0 ->../../devices/pci@8,600000/SUNW,qlc@2/fp@0,0/ssd@w500000e01036d021,0:a lrwxrwxrwx   1 root     root          70  4月  7日 16:57 /mnt/c2t2d2/dev/dsk/c2t2d2s1 ->../../devices/pci@8,600000/SUNW,qlc@2/fp@0,0/ssd@w500000e01036d021,0:b lrwxrwxrwx   1 root     root          70  4月  7日 16:57 /mnt/c2t2d2/dev/dsk/c2t2d2s2 ->../../devices/pci@8,600000/SUNW,qlc@2/fp@0,0/ssd@w500000e01036d021,0:c lrwxrwxrwx   1 root     root          70  4月  7日 16:57 /mnt/c2t2d2/dev/dsk/c2t2d2s3 ->../../devices/pci@8,600000/SUNW,qlc@2/fp@0,0/ssd@w500000e01036d021,0:d lrwxrwxrwx   1 root     root          70  4月  7日 16:57 /mnt/c2t2d2/dev/dsk/c2t2d2s4 ->../../devices/pci@8,600000/SUNW,qlc@2/fp@0,0/ssd@w500000e01036d021,0:e lrwxrwxrwx   1 root     root          70  4月  7日 16:57 /mnt/c2t2d2/dev/dsk/c2t2d2s5 ->../../devices/pci@8,600000/SUNW,qlc@2/fp@0,0/ssd@w500000e01036d021,0:f lrwxrwxrwx   1 root     root          70  4月  7日 16:57 /mnt/c2t2d2/dev/dsk/c2t2d2s6 ->../../devices/pci@8,600000/SUNW,qlc@2/fp@0,0/ssd@w500000e01036d021,0:g lrwxrwxrwx   1 root     root          70  4月  7日 16:57 /mnt/c2t2d2/dev/dsk/c2t2d2s7 ->../../devices/pci@8,600000/SUNW,qlc@2/fp@0,0/ssd@w500000e01036d021,0:h #

本文链接：http://user.qzone.qq.com/77923488/blog/1210217099

dd后换盘，从镜像盘启动系统的一种简便方法2-2 # # ls -l  /dev/dsk/c1t1* lrwxrwxrwx   1 root     root          70 2007   9月  7 /dev/dsk/c1t1d1s0 ->../../devices/pci@8,600000/SUNW,qlc@2/fp@0,0/ssd@w500000e010373291,0:a lrwxrwxrwx   1 root     root          70 2007   9月  7 /dev/dsk/c1t1d1s1 ->../../devices/pci@8,600000/SUNW,qlc@2/fp@0,0/ssd@w500000e010373291,0:b lrwxrwxrwx   1 root     root          70 2007   9月  7 /dev/dsk/c1t1d1s2 ->../../devices/pci@8,600000/SUNW,qlc@2/fp@0,0/ssd@w500000e010373291,0:c lrwxrwxrwx   1 root     root          70 2007   9月  7 /dev/dsk/c1t1d1s3 ->../../devices/pci@8,600000/SUNW,qlc@2/fp@0,0/ssd@w500000e010373291,0:d lrwxrwxrwx   1 root     root          70 2007   9月  7 /dev/dsk/c1t1d1s4 ->../../devices/pci@8,600000/SUNW,qlc@2/fp@0,0/ssd@w500000e010373291,0:e lrwxrwxrwx   1 root     root          70 2007   9月  7 /dev/dsk/c1t1d1s5 ->../../devices/pci@8,600000/SUNW,qlc@2/fp@0,0/ssd@w500000e010373291,0:f lrwxrwxrwx   1 root     root          70 2007   9月  7 /dev/dsk/c1t1d1s6 ->../../devices/pci@8,600000/SUNW,qlc@2/fp@0,0/ssd@w500000e010373291,0:g lrwxrwxrwx   1 root     root          70 2007   9月  7 /dev/dsk/c1t1d1s7 ->../../devices/pci@8,600000/SUNW,qlc@2/fp@0,0/ssd@w500000e010373291,0:h # # ls -l  /mnt/c2t2d2/dev/dsk/c1t1* lrwxrwxrwx   1 root     root          70 2007   9月  7 /mnt/c2t2d2/dev/dsk/c1t1d1s0 ->../../devices/pci@8,600000/SUNW,qlc@2/fp@0,0/ssd@w500000e010373291,0:a lrwxrwxrwx   1 root     root          70 2007   9月  7 /mnt/c2t2d2/dev/dsk/c1t1d1s1 ->../../devices/pci@8,600000/SUNW,qlc@2/fp@0,0/ssd@w500000e010373291,0:b lrwxrwxrwx   1 root     root          70 2007   9月  7 /mnt/c2t2d2/dev/dsk/c1t1d1s2 ->../../devices/pci@8,600000/SUNW,qlc@2/fp@0,0/ssd@w500000e010373291,0:c lrwxrwxrwx   1 root     root          70 2007   9月  7 /mnt/c2t2d2/dev/dsk/c1t1d1s3 ->../../devices/pci@8,600000/SUNW,qlc@2/fp@0,0/ssd@w500000e010373291,0:d lrwxrwxrwx   1 root     root          70 2007   9月  7 /mnt/c2t2d2/dev/dsk/c1t1d1s4 ->../../devices/pci@8,600000/SUNW,qlc@2/fp@0,0/ssd@w500000e010373291,0:e lrwxrwxrwx   1 root     root          70 2007   9月  7 /mnt/c2t2d2/dev/dsk/c1t1d1s5 ->../../devices/pci@8,600000/SUNW,qlc@2/fp@0,0/ssd@w500000e010373291,0:f lrwxrwxrwx   1 root     root          70 2007   9月  7 /mnt/c2t2d2/dev/dsk/c1t1d1s6 ->../../devices/pci@8,600000/SUNW,qlc@2/fp@0,0/ssd@w500000e010373291,0:g lrwxrwxrwx   1 root     root          70 2007   9月  7 /mnt/c2t2d2/dev/dsk/c1t1d1s7 ->../../devices/pci@8,600000/SUNW,qlc@2/fp@0,0/ssd@w500000e010373291,0:h # # rm -rf /mnt/c2t2d2/dev/dsk/c2t2* # ls -l  /mnt/c2t2d2/dev/dsk/c2t2* /mnt/c2t2d2/dev/dsk/c2t2*: 无此文件或目录 # rm -rf /mnt/c2t2d2/dev/dsk/c1t1* # ls -l  /mnt/c2t2d2/dev/dsk/c1t1* /mnt/c2t2d2/dev/dsk/c1t1*: 无此文件或目录 # # ln -s../../devices/pci@8,600000/SUNW,qlc@2/fp@0,0/ssd@w500000e01036d021,0:a/mnt/c2t2d2/dev/dsk/c1t1d1s0 # ln -s../../devices/pci@8,600000/SUNW,qlc@2/fp@0,0/ssd@w500000e01036d021,0:b/mnt/c2t2d2/dev/dsk/c1t1d1s1 # ln -s../../devices/pci@8,600000/SUNW,qlc@2/fp@0,0/ssd@w500000e01036d021,0:c/mnt/c2t2d2/dev/dsk/c1t1d1s2 # ln -s../../devices/pci@8,600000/SUNW,qlc@2/fp@0,0/ssd@w500000e01036d021,0:d/mnt/c2t2d2/dev/dsk/c1t1d1s3 # ln -s../../devices/pci@8,600000/SUNW,qlc@2/fp@0,0/ssd@w500000e01036d021,0:e/mnt/c2t2d2/dev/dsk/c1t1d1s4 # ln -s../../devices/pci@8,600000/SUNW,qlc@2/fp@0,0/ssd@w500000e01036d021,0:f/mnt/c2t2d2/dev/dsk/c1t1d1s5 # ln -s../../devices/pci@8,600000/SUNW,qlc@2/fp@0,0/ssd@w500000e01036d021,0:g/mnt/c2t2d2/dev/dsk/c1t1d1s6 # ln -s../../devices/pci@8,600000/SUNW,qlc@2/fp@0,0/ssd@w500000e01036d021,0:h/mnt/c2t2d2/dev/dsk/c1t1d1s7 # # ls -l  /mnt/c2t2d2/dev/dsk/c1t1* lrwxrwxrwx   1 root     root          70  5月  7日 11:06 /mnt/c2t2d2/dev/dsk/c1t1d1s0 ->../../devices/pci@8,600000/SUNW,qlc@2/fp@0,0/ssd@w500000e01036d021,0:a lrwxrwxrwx   1 root     root          70  5月  7日 11:07 /mnt/c2t2d2/dev/dsk/c1t1d1s1 ->../../devices/pci@8,600000/SUNW,qlc@2/fp@0,0/ssd@w500000e01036d021,0:b lrwxrwxrwx   1 root     root          70  5月  7日 11:07 /mnt/c2t2d2/dev/dsk/c1t1d1s2 ->../../devices/pci@8,600000/SUNW,qlc@2/fp@0,0/ssd@w500000e01036d021,0:c lrwxrwxrwx   1 root     root          70  5月  7日 11:08 /mnt/c2t2d2/dev/dsk/c1t1d1s3 ->../../devices/pci@8,600000/SUNW,qlc@2/fp@0,0/ssd@w500000e01036d021,0:d lrwxrwxrwx   1 root     root          70  5月  7日 11:08 /mnt/c2t2d2/dev/dsk/c1t1d1s4 ->../../devices/pci@8,600000/SUNW,qlc@2/fp@0,0/ssd@w500000e01036d021,0:e lrwxrwxrwx   1 root     root          70  5月  7日 11:08 /mnt/c2t2d2/dev/dsk/c1t1d1s5 ->../../devices/pci@8,600000/SUNW,qlc@2/fp@0,0/ssd@w500000e01036d021,0:f lrwxrwxrwx   1 root     root          70  5月  7日 11:08 /mnt/c2t2d2/dev/dsk/c1t1d1s6 ->../../devices/pci@8,600000/SUNW,qlc@2/fp@0,0/ssd@w500000e01036d021,0:g lrwxrwxrwx   1 root     root          70  5月  7日 11:08 /mnt/c2t2d2/dev/dsk/c1t1d1s7 ->../../devices/pci@8,600000/SUNW,qlc@2/fp@0,0/ssd@w500000e01036d021,0:h # # rm -rf /mnt/c2t2d2/dev/rdsk/c2t2d2s? # rm -rf /mnt/c2t2d2/dev/rdsk/c1t1d1s? # ls -l /mnt/c2t2d2/dev/rdsk/c2t2d2s? dev/rdsk/c2t2d2s?: 无此文件或目录 # ls -l /mnt/c2t2d2/dev/rdsk/c1t1d1s? /mnt/c2t2d2/dev/rdsk/c1t1d1s?: 无此文件或目录 # # ln -s../../devices/pci@8,600000/SUNW,qlc@2/fp@0,0/ssd@w500000e01036d021,0:a,raw/mnt/c2t2d2/dev/rdsk/c1t1d1s0 # ln -s../../devices/pci@8,600000/SUNW,qlc@2/fp@0,0/ssd@w500000e01036d021,0:b,raw/mnt/c2t2d2/dev/rdsk/c1t1d1s1 # ln -s../../devices/pci@8,600000/SUNW,qlc@2/fp@0,0/ssd@w500000e01036d021,0:c,raw/mnt/c2t2d2/dev/rdsk/c1t1d1s2 # ln -s../../devices/pci@8,600000/SUNW,qlc@2/fp@0,0/ssd@w500000e01036d021,0:d,raw/mnt/c2t2d2/dev/rdsk/c1t1d1s3 # ln -s../../devices/pci@8,600000/SUNW,qlc@2/fp@0,0/ssd@w500000e01036d021,0:e,raw/mnt/c2t2d2/dev/rdsk/c1t1d1s4 # ln -s../../devices/pci@8,600000/SUNW,qlc@2/fp@0,0/ssd@w500000e01036d021,0:f,raw/mnt/c2t2d2/dev/rdsk/c1t1d1s5 # ln -s../../devices/pci@8,600000/SUNW,qlc@2/fp@0,0/ssd@w500000e01036d021,0:g,raw/mnt/c2t2d2/dev/rdsk/c1t1d1s6 # ln -s../../devices/pci@8,600000/SUNW,qlc@2/fp@0,0/ssd@w500000e01036d021,0:h,raw/mnt/c2t2d2/dev/rdsk/c1t1d1s7 # # ls -l /mnt/c2t2d2/dev/rdsk/c1t1d1s? lrwxrwxrwx   1 root     root          74  5月  8日 09:15 /mnt/c2t2d2/dev/rdsk/c1t1d1s0 ->../../devices/pci@8,600000/SUNW,qlc@2/fp@0,0/ssd@w500000e01036d021,0:a,raw lrwxrwxrwx   1 root     root          74  5月  8日 09:15 /mnt/c2t2d2/dev/rdsk/c1t1d1s1 ->../../devices/pci@8,600000/SUNW,qlc@2/fp@0,0/ssd@w500000e01036d021,0:b,raw lrwxrwxrwx   1 root     root          74  5月  8日 09:15 /mnt/c2t2d2/dev/rdsk/c1t1d1s2 ->../../devices/pci@8,600000/SUNW,qlc@2/fp@0,0/ssd@w500000e01036d021,0:c,raw lrwxrwxrwx   1 root     root          74  5月  8日 09:15 /mnt/c2t2d2/dev/rdsk/c1t1d1s3 ->../../devices/pci@8,600000/SUNW,qlc@2/fp@0,0/ssd@w500000e01036d021,0:d,raw lrwxrwxrwx   1 root     root          74  5月  8日 09:15 /mnt/c2t2d2/dev/rdsk/c1t1d1s4 ->../../devices/pci@8,600000/SUNW,qlc@2/fp@0,0/ssd@w500000e01036d021,0:e,raw lrwxrwxrwx   1 root     root          74  5月  8日 09:15 /mnt/c2t2d2/dev/rdsk/c1t1d1s5 ->../../devices/pci@8,600000/SUNW,qlc@2/fp@0,0/ssd@w500000e01036d021,0:f,raw lrwxrwxrwx   1 root     root          74  5月  8日 09:15 /mnt/c2t2d2/dev/rdsk/c1t1d1s6 ->../../devices/pci@8,600000/SUNW,qlc@2/fp@0,0/ssd@w500000e01036d021,0:g,raw lrwxrwxrwx   1 root     root          74  5月  8日 09:15 /mnt/c2t2d2/dev/rdsk/c1t1d1s7 ->../../devices/pci@8,600000/SUNW,qlc@2/fp@0,0/ssd@w500000e01036d021,0:h,raw # # umount /mnt/c2t2d2/ # sync;sync;sync # init 5# # 挂起 拔除c2t2d2和c1t1d1硬盘交换插槽； 加电启动机器，看到登录界面。

[ 本帖最后由 amin 于 2008-5-9 10:22 编辑 ]

race

手工操作地方太多 容易搞乱，本版精华区有，你怎么不去参考？

dogg

明白你的意思，但是修改链接太麻烦了

不知道直接将两个链接名称c1t1dt和c2t2d2互换是不是简单一些?

amin_cu

原帖由 dogg 于 2008-5-9 14:27 发表
明白你的意思，但是修改链接太麻烦了

不知道直接将两个链接名称c1t1dt和c2t2d2互换是不是简单一些?

能否告知直接将两个链接名称c1t1dt和c2t2d2互换的操作命令？

dogg

当然一步是做不到了
你的想法是改链接，要写大量的硬盘物理地址
我说的是改名称mv c1t1d1s0 c2t2t2s0,类似这样的
应该也是一样的

amin_cu

原帖由 dogg 于 2008-5-9 15:35 发表
当然一步是做不到了
你的想法是改链接，要写大量的硬盘物理地址
我说的是改名称mv c1t1d1s0 c2t2t2s0,类似这样的
应该也是一样的

用mv也一样涉及到16次操作，免不了的。
我再次浏览了一次精华贴，发现还是我的方法简单有效。

关键是解决了dd后的镜像光纤硬盘＋插到原系统盘位置＋启动系统的问题。

很平凡的Man

头有点晕

junfer

为什么要换插槽呢，直接从镜像盘启动不就行了？

很平凡的Man

楼上正解，不需要换槽，我们可以 使用
#devaliase disk2 /PCIXXXXXX/SCSIXXXXXXXXXXX
然后boot disk2
我想问一下各位dd的时候引导块已经安装好了没 ？
需要重新
installblk  /usr/platform/`uname -i`/lib/fs/ufs/bootblk  /dev/dsk/c0t2d0s0
不阿？

dogg

你试过把根盘拨出来，直接从镜像盘启动吗？

那样你的链接还能找到吗？