[linux-lvm] [Fwd: Mistake(s) on install of EXP300...]
Heinz J . Mauelshagen
mauelshagen at sistina.com
Tue Dec 11 04:52:02 UTC 2001
Scott,
saving your /etc/lvmtab* you can reactivate your VG in case something else
might go wrong by restoring it and "vgchange -ay".
Writing a partition table to /dev/sdb overwrote the PV part of LVMs metadata
on that disk.
Give vgcfgrestore a try on /dev/sdb.
Please don't forget to bakup /etc/lvmconf/ regularly.
Regards,
Heinz -- The LVM Guy --
On Mon, Dec 10, 2001 at 03:53:01PM -0600, Scott P wrote:
> Hi...
>
> I did not recieve a response, just wanted to know if somoeone could verify
> that I can use vgcfgrestore and recover my VGDA?
>
> Please help, if possible. I am working on a Production machine. Therefore,
> I cannot test. I have little margin for errors.
>
> LVM Ver & driver/patch:
> 0.9.1_beta7
> /boot/vmlinuz-2.2.19-lvm0.9
> lvm-0.9.1_beta7-2.2.19.patch
>
>
> Thanks!
>
> -Scott
>
>
> Scott P wrote:
>
> > Hi list,
> >
> > This is what I've done so far ( I apologize for the large amount of
> > lines/info!):
> >
> > [root at ptb3 /root]# pvcreate -v /dev/sdb
> > pvcreate -- locking logical volume manager
> > pvcreate -- checking physical volume name "/dev/sdb"
> > pvcreate -- getting physical volume size
> > pvcreate -- checking partition type
> > pvcreate -- creating new physical volume
> > pvcreate -- setting up physical volume for /dev/sdb with 860231680
> > sectors
> > pvcreate -- writing physical volume data to disk "/dev/sdb"
> > pvcreate -- physical volume "/dev/sdb" successfully created
> > pvcreate -- unlocking logical volume manager
> >
> > [root at ptb3 /root]# pvscan
> > pvscan -- reading all physical volumes (this may take a while...)
> > pvscan -- inactive PV "/dev/sdb" is in no VG [410.19 GB]
> > pvscan -- ACTIVE PV "/dev/sdc1" of VG "exp300_2" [440.69 GB / 0 free]
> > pvscan -- ACTIVE PV "/dev/sdd1" of VG "exp300_2" [440.69 GB / 0 free]
> > pvscan -- total: 3 [1.26 TB] / in use: 2 [881.43 GB] / in no VG: 1
> > [410.19 GB]
> >
> > [root at ptb3 /root]# dmesg | less
> > [root at ptb3 /root]# vgscan
> > vgscan -- reading all physical volumes (this may take a while...)
> > vgscan -- found active volume group "exp300_2"
> > vgscan -- "/etc/lvmtab" and "/etc/lvmtab.d" successfully created
> > vgscan -- WARNING: This program does not do a VGDA backup of your volume
> > group
> >
> > [root at ptb3 /root]# lvscan
> > lvscan -- ACTIVE "/dev/exp300_2/exp300_lv2" [881.38 GB]
> > lvscan -- 1 logical volumes with 881.38 GB total in 1 volume group
> > lvscan -- 1 active logical volumes
> >
> > [root at ptb3 /root]# vgextend -A y exp300_2 /dev/sdb
> > vgextend -- INFO: maximum logical volume size is 1 Terabyte
> > vgextend -- doing automatic backup of volume group "exp300_2"
> > vgextend -- volume group "exp300_2" successfully extended
> >
> > [root at ptb3 /root]# lvextend -L +440.7 /dev/exp300_2/exp300_lv2 /dev/sdb
> > lvextend -- rounding size to physical extent boundary
> > lvextend -- extending logical volume "/dev/exp300_2/exp300_lv2" to
> > 881.81 GB
> > lvextend -- doing automatic backup of volume group "exp300_2"
> > lvextend -- logical volume "/dev/exp300_2/exp300_lv2" successfully
> > extended
> >
> > Then, not thinking at all, I went back and ran fdisk, since I forgot
> > to run fdisk, it was 2:00 a.m. in the morning!!!
> >
> > root at ptb3 rc3.d]# fdisk /dev/sdb
> >
> > The number of cylinders for this disk is set to 53757.
> > There is nothing wrong with that, but this is larger than 1024,
> > and could in certain setups cause problems with:
> > 1) software that runs at boot time (e.g., LILO)
> > 2) booting and partitioning software from other OSs
> > (e.g., DOS FDISK, OS/2 FDISK)
> >
> > Command (m for help): p
> >
> > Disk /dev/sdb: 254 heads, 63 sectors, 53757 cylinders
> > Units = cylinders of 16002 * 512 bytes
> >
> > Device Boot Start End Blocks Id System
> >
> > Command (m for help): m
> > Command action
> > a toggle a bootable flag
> > b edit bsd disklabel
> > c toggle the dos compatibility flag
> > d delete a partition
> > l list known partition types
> > m print this menu
> > n add a new partition
> > o create a new empty DOS partition table
> > p print the partition table
> > q quit without saving changes
> > s create a new empty Sun disklabel
> > t change a partition's system id
> > u change display/entry units
> > v verify the partition table
> > w write table to disk and exit
> > x extra functionality (experts only)
> >
> > Command (m for help): n
> > Command action
> > e extended
> > p primary partition (1-4)
> > p
> > Partition number (1-4): 1
> > First cylinder (1-53757, default 1):
> > Using default value 1
> > Last cylinder or +size or +sizeM or +sizeK (1-53757, default 53757):
> > Using default value 53757
> >
> > Command (m for help): p
> >
> > Disk /dev/sdb: 254 heads, 63 sectors, 53757 cylinders
> > Units = cylinders of 16002 * 512 bytes
> >
> > Device Boot Start End Blocks Id System
> > /dev/sdb1 1 53757 430109725+ 83 Linux
> >
> > Command (m for help): l
> >
> > 0 Empty 17 Hidden HPFS/NTF 5c Priam Edisk a6 OpenBSD
> > 1 FAT12 18 AST Windows swa 61 SpeedStor a7 NeXTSTEP
> >
> > 2 XENIX root 1b Hidden Win95 FA 63 GNU HURD or Sys b7 BSDI fs
> > 3 XENIX usr 1c Hidden Win95 FA 64 Novell Netware b8 BSDI
> > swap
> > 4 FAT16 <32M 1e Hidden Win95 FA 65 Novell Netware c1
> > DRDOS/sec (FAT-
> > 5 Extended 24 NEC DOS 70 DiskSecure Mult c4
> > DRDOS/sec (FAT-
> > 6 FAT16 3c PartitionMagic 75 PC/IX c6
> > DRDOS/sec (FAT-
> > 7 HPFS/NTFS 40 Venix 80286 80 Old Minix c7 Syrinx
> > 8 AIX 41 PPC PReP Boot 81 Minix / old Lin db CP/M /
> > CTOS / .
> > 9 AIX bootable 42 SFS 82 Linux swap e1 DOS
> > access
> > a OS/2 Boot Manag 4d QNX4.x 83 Linux e3 DOS R/O
> > b Win95 FAT32 4e QNX4.x 2nd part 84 OS/2 hidden C: e4
> > SpeedStor
> > c Win95 FAT32 (LB 4f QNX4.x 3rd part 85 Linux extended eb BeOS fs
> > e Win95 FAT16 (LB 50 OnTrack DM 86 NTFS volume set f1
> > SpeedStor
> > f Win95 Ext'd (LB 51 OnTrack DM6 Aux 87 NTFS volume set f4
> > SpeedStor
> > 10 OPUS 52 CP/M 93 Amoeba f2 DOS
> > secondary
> > 11 Hidden FAT12 53 OnTrack DM6 Aux 94 Amoeba BBT fd Linux
> > raid auto
> > 12 Compaq diagnost 54 OnTrackDM6 a0 IBM Thinkpad hi fe LANstep
> > 14 Hidden FAT16 <3 55 EZ-Drive a5 BSD/386 ff BBT
> > 16 Hidden FAT16 56 Golden Bow
> >
> > Command (m for help): m
> > Command action
> > a toggle a bootable flag
> > b edit bsd disklabel
> > c toggle the dos compatibility flag
> > d delete a partition
> > l list known partition types
> > m print this menu
> > n add a new partition
> > o create a new empty DOS partition table
> > p print the partition table
> > q quit without saving changes
> > s create a new empty Sun disklabel
> > t change a partition's system id
> > u change display/entry units
> > v verify the partition table
> > w write table to disk and exit
> > x extra functionality (experts only)
> >
> > Command (m for help): t
> > Partition number (1-4): 1
> > Hex code (type L to list codes): l
> >
> > 0 Empty 17 Hidden HPFS/NTF 5c Priam Edisk a6 OpenBSD
> > 1 FAT12 18 AST Windows swa 61 SpeedStor a7 NeXTSTEP
> >
> > 2 XENIX root 1b Hidden Win95 FA 63 GNU HURD or Sys b7 BSDI fs
> > 3 XENIX usr 1c Hidden Win95 FA 64 Novell Netware b8 BSDI
> > swap
> > 4 FAT16 <32M 1e Hidden Win95 FA 65 Novell Netware c1
> > DRDOS/sec (FAT-
> > 5 Extended 24 NEC DOS 70 DiskSecure Mult c4
> > DRDOS/sec (FAT-
> > 6 FAT16 3c PartitionMagic 75 PC/IX c6
> > DRDOS/sec (FAT-
> > 7 HPFS/NTFS 40 Venix 80286 80 Old Minix c7 Syrinx
> > 8 AIX 41 PPC PReP Boot 81 Minix / old Lin db CP/M /
> > CTOS / .
> > 9 AIX bootable 42 SFS 82 Linux swap e1 DOS
> > access
> > a OS/2 Boot Manag 4d QNX4.x 83 Linux e3 DOS R/O
> > b Win95 FAT32 4e QNX4.x 2nd part 84 OS/2 hidden C: e4
> > SpeedStor
> > c Win95 FAT32 (LB 4f QNX4.x 3rd part 85 Linux extended eb BeOS fs
> > e Win95 FAT16 (LB 50 OnTrack DM 86 NTFS volume set f1
> > SpeedStor
> > f Win95 Ext'd (LB 51 OnTrack DM6 Aux 87 NTFS volume set f4
> > SpeedStor
> > 10 OPUS 52 CP/M 93 Amoeba f2 DOS
> > secondary
> > 11 Hidden FAT12 53 OnTrack DM6 Aux 94 Amoeba BBT fd Linux
> > raid auto
> > 12 Compaq diagnost 54 OnTrackDM6 a0 IBM Thinkpad hi fe LANstep
> > 14 Hidden FAT16 <3 55 EZ-Drive a5 BSD/386 ff BBT
> > 16 Hidden FAT16 56 Golden Bow
> > Hex code (type L to list codes): 8e
> > Changed system type of partition 1 to 8e (Unknown)
> >
> > Command (m for help): p
> >
> > Disk /dev/sdb: 254 heads, 63 sectors, 53757 cylinders
> > Units = cylinders of 16002 * 512 bytes
> >
> > Device Boot Start End Blocks Id System
> > /dev/sdb1 1 53757 430109725+ 8e Unknown
> >
> > Command (m for help): m
> > Command action
> > a toggle a bootable flag
> > b edit bsd disklabel
> > c toggle the dos compatibility flag
> > d delete a partition
> > l list known partition types
> > m print this menu
> > n add a new partition
> > o create a new empty DOS partition table
> > p print the partition table
> > q quit without saving changes
> > s create a new empty Sun disklabel
> > t change a partition's system id
> > u change display/entry units
> > v verify the partition table
> > w write table to disk and exit
> > x extra functionality (experts only)
> >
> > Command (m for help): v
> > 62 unallocated sectors
> >
> > Command (m for help): w
> > The partition table has been altered!
> >
> > Calling ioctl() to re-read partition table.
> >
> > WARNING: If you have created or modified any DOS 6.x
> > partitions, please see the fdisk manual page for additional
> > information.
> > Syncing disks.
> >
> > So, now I have these errors when running most of the LVM cmds!!
> >
> > [root at ptb3 rc3.d]# vgscan
> > vgscan -- reading all physical volumes (this may take a while...)
> > vgscan -- found active volume group "exp300_2"
> > vgscan -- ERROR "pv_read_pe(): PV size invalid" can't get data of volume
> > group "exp300_2" from physical volume(s)
> > vgscan -- ERROR "pv_read_pe(): PV size invalid" creating "/etc/lvmtab"
> > and "/etc/lvmtab.d"
> >
> > [root at ptb3 rc3.d]# vgdisplay
> > vgdisplay -- ERROR: VGDA in kernel and lvmtab are NOT consistent; please
> > run vgscan
> >
> > [root at ptb3 rc3.d]# pvscan
> > pvscan -- reading all physical volumes (this may take a while...)
> > pvscan -- ACTIVE PV "/dev/sdb" is associated to an unknown VG (run
> > vgscan)
> > pvscan -- ACTIVE PV "/dev/sdc1" is associated to an unknown VG (run
> > vgscan)
> > pvscan -- ACTIVE PV "/dev/sdd1" is associated to an unknown VG (run
> > vgscan)
> > pvscan -- total: 3 [889.43 GB] / in use: 3 [889.43 GB] / in no VG: 0 [0]
> >
> > [root at ptb3 rc3.d]# lvscan
> > lvscan -- ERROR: VGDA in kernel and lvmtab are NOT consistent; please
> > run vgscan
> >
> > Hence, chaos ensues on this machine....
> >
> > Please let me know if "vgcfgrestore" will work for me.
> > Or do I try to remove the partition from fdisk? I really don't think
> > that will help though!
> > I think the damage is done from the partition write to the EXP300 disk
> > array.
> >
> > Also, if I reboot, will there be a disaster?(For fdisk...)
> > This is a production machine.
> >
> > Please help me if you can...
> >
> > TIA!
> >
> > -Scott
>
>
> _______________________________________________
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> linux-lvm at sistina.com
> http://lists.sistina.com/mailman/listinfo/linux-lvm
> read the LVM HOW-TO at http://www.sistina.com/lvm/Pages/howto.html
*** Software bugs are stupid.
Nevertheless it needs not so stupid people to solve them ***
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
Heinz Mauelshagen Sistina Software Inc.
Senior Consultant/Developer Am Sonnenhang 11
56242 Marienrachdorf
Germany
Mauelshagen at Sistina.com +49 2626 141200
FAX 924446
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