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HP-UX-11iv3-how-to-change-root-volume-group-name-vg00
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HP-UX 11.31 How to change root volume group name vg00
By Dusan Baljevic ([email protected])
a) Boot the server into LVM maintenance mode: > boot vmunix -lm b) Export root volume group: # vgexport -s -m /vg00.map /dev/vg00vgexport: Volume group "/dev/vg00" has been successfully removed. c) Create new directory and group file for the root volume group.Let's name it vgroot... # mknod /dev/vgroot # mknod /dev/vgroot/group c 64 0x010000 d) Import the map file from original vg00: # vgimport -N -s -m /vg00.map vgrootvgimport: Volume group "/dev/vgroot" has been successfully created.
Warning: A backup of this volume group may not exist on this machine.Please remember to take a backup using the vgcfgbackup command after activating the volume group.
Also, upon first activation of an imported bootable volume group, makesure to run lvlnboot(1M) command in recovery mode (-R option) to rsync the information on the disk. e) Activate the new root volume group: # vgchange -a y vgrootActivated volume group.Volume group "vgroot" has been successfully changed. f) Check the status and make changes in LVM accordingly: # lvlnboot -vBoot Definitions for Volume Group /dev/vgroot:Physical Volumes belonging in Root Volume Group: /dev/disk/disk11_p2 -- Boot DiskBoot: lvol1 on: /dev/disk/disk11_p2Root: ??? on: /dev/disk/disk11_p2Swap: ??? on: /dev/disk/disk11_p2Dump: ??? on: /dev/disk/disk11_p2, 0
# lvrmboot -r vgrootVolume Group configuration for /dev/vgroot has been saved in /etc/lvmconf/vgroot.conf # lvlnboot -b /dev/vgroot/lvol1Volume Group configuration for /dev/vgroot has been saved in /etc/lvmconf/vgroot.conf # lvlnboot -r /dev/vgroot/lvol3Volume Group configuration for /dev/vgroot has been saved in /etc/lvmconf/vgroot.conf # lvlnboot -s /dev/vgroot/lvol2Volume Group configuration for /dev/vgroot has been saved in /etc/lvmconf/vgroot.conf If dump was part of primary swap (not in my case), one would need to run this as well: # lvlnboot -d /dev/vgroot/lvol2 # lvlnboot -R /dev/vgrootVolume Group configuration for /dev/vgroot has been saved in /etc/lvmconf/vgroot.conf # lvlnboot -vBoot Definitions for Volume Group /dev/vgroot:Physical Volumes belonging in Root Volume Group: /dev/disk/disk11_p2 -- Boot DiskBoot: lvol1 on: /dev/disk/disk11_p2Root: lvol3 on: /dev/disk/disk11_p2Swap: lvol2 on: /dev/disk/disk11_p2No Dump Logical Volume configured # lvmadm -l--- Version 1.0 volume groups ---VG Name /dev/vgrootPV Name /dev/disk/disk11_p2 g) We need to ensure that file system file uses new volume group name.To get access to commands like vi(1M) or sed(1M): # mount /dev/vgroot/lvol7 /usr Just for fun, I did not use vi(1M) but sed(1M): # sed -e 's/vg00/vgroot/g' /etc/fstab >/etc/fstab.new
# diff /etc/fstab /etc/fstab.new3,10c3,10< /dev/vg00/lvol3 / vxfs delaylog 0 1< /dev/vg00/lvol1 /stand vxfs tranflush 0 1< /dev/vg00/lvol4 /home vxfs delaylog 0 2< /dev/vg00/lvol5 /opt vxfs delaylog 0 2< /dev/vg00/lvol6 /tmp vxfs delaylog 0 2< /dev/vg00/lvol7 /usr vxfs delaylog 0 2< /dev/vg00/lvol8 /var vxfs delaylog 0 2< /dev/vg00/lvol9 /var/tmp vxfs delaylog 0 2---> /dev/vgroot/lvol3 / vxfs delaylog 0 1> /dev/vgroot/lvol1 /stand vxfs tranflush 0 1> /dev/vgroot/lvol4 /home vxfs delaylog 0 2> /dev/vgroot/lvol5 /opt vxfs delaylog 0 2> /dev/vgroot/lvol6 /tmp vxfs delaylog 0 2> /dev/vgroot/lvol7 /usr vxfs delaylog 0 2> /dev/vgroot/lvol8 /var vxfs delaylog 0 2> /dev/vgroot/lvol9 /var/tmp vxfs delaylog 0 2 # cp -p /etc/fstab.new /etc/fstab # mount -amount: /dev/vgroot/lvol7 is already mounted on /usr # bdfFilesystem kbytes used avail %used Mounted on/dev/vg00/lvol3 2097152 432552 1651696 21% //dev/vgroot/lvol7 12288000 3446528 8772480 28% /usr/dev/vgroot/lvol8 14336000 2396872 11845920 17% /var/dev/vgroot/lvol9 2097152 20501 1949796 1% /var/tmp/dev/vgroot/lvol6 1048576 20816 1019736 2% /tmp/dev/vgroot/lvol5 15368192 7992488 7318224 52% /opt/dev/vgroot/lvol4 524288 20848 499512 4% /home/dev/vgroot/lvol1 2097152 291696 1791408 14% /stand # setboot -vPrimary bootpath : 1/0/1/1/0/1/1.0x6.0x0 (/dev/rdisk/disk11)HA Alternate bootpath : 1/0/1/1/0/1/1.0x6.0x0 (/dev/rdisk/disk11)Alternate bootpath : 0/0/0/3/0.0x5.0x0 (/dev/rdisk/disk7)Autoboot is ON (enabled)TEST CURRENT DEFAULT---- ------- -------all partial partial SELFTESTS on on early_cpu on on late_cpu on on FASTBOOT on on Platform on on Full_memory on on Memory_init on on IO_HW off off Chipset on on
# swapinfo -tm Mb Mb Mb PCT START/ MbTYPE AVAIL USED FREE USED LIMIT RESERVE PRI NAMEdev 8192 0 8192 0% 0 - 1 64,0x000002reserve - 2 -2memory 19349 1679 17670 9%total 27541 1681 25860 6% - 0 - h) Reboot and enjoy using the server with new root volume group name: # /usr/sam/lbin/vginfo -vvgroot:available,read/write@:255:16:9:1:0:16:4329:69104:12224:764:4319:0:0:/dev/vgroot/lvol1@available/syncd@2048@128@1,/dev/vgroot/lvol2@available/syncd@8192@512@1,/dev/vgroot/lvol3@available/syncd@2048@128@1,/dev/vgroot/lvol4@available/syncd@512@32@1,/dev/vgroot/lvol5@available/syncd@15008@938@1,/dev/vgroot/lvol6@available/syncd@1024@64@1,/dev/vgroot/lvol7@available/syncd@12000@750@1,/dev/vgroot/lvol8@available/syncd@14000@875@1,/dev/vgroot/lvol9@available/syncd@2048@128@1:/dev/disk/disk11_p2@@available@4319@764::LVM
