[linux-lvm] vgcreate blackhole
Heinz J . Mauelshagen
mauelshagen at sistina.com
Tue Oct 9 09:45:51 UTC 2001
This should be fixed in CVS.
Please fetch the code form there and try (follow instructions at
www.sistina.com).
Regards,
Heinz -- The LVM Guy --
On Mon, Oct 08, 2001 at 08:10:03PM -0400, Uday Bhaskar Sarma Seetamraju wrote:
> % uname -a
> Linux linux1.localdomain 2.4.3-20mdk #1 Sun Apr 15 23:03:10 CEST 2001 i686 Unknown
> (Mandrake Distribution 8.0)
>
> % cat /proc/lvm/global
> LVM module version 0.9.1_beta2 (18/01/2001)
> <see rest of output below>
>
> % vgcreate --version
> vgcreate: unrecognized option `--version'
> Logical Volume Manager 0.9
> Heinz Mauelshagen, Sistina Software 13/11/2000 (IOP 10)
> ...
>
> Summary: VGCREATE finishes nicely (verbose output below).
> But a VGSCAN immediately after vgcreate , shows nothing changed.
>
> A little longer Summary of the problem:
> ======================================
> Have had LVM up for a little while now.
> Wanted to add LVM over RAID1 (ref: my previous email help).
> Created two devices md0 and md1 (see the raidtab below).
> Had the same identical problem with md0. After reading
> the linux-lvm list, I tried it with md1 only, butno difference.
> So, I am writing this email re: the md1 experience only.
>
> Note: All the lvm commands were run ONLY in linux-single-user mode.
> But some of the LVM volumes were mounted while running the
> cgvreate, pvcreate commands. From my prior experience
> and by the man pages, it doesn't matter, but then....
>
> DETAILS of the PROBLEM
> ======================
> Run the command
> % vgcreate -v MKP4 /dev/md1
> (See detailed output below).
>
> vgscan does not show MKP4. PVSCAN shows unknown volume. see listing below.
>
> After that any attempt to modify the LVM setup (eg: vgextend, pvcreate, etc...) give the following error. Ofcourse, pvscan and vgscan do not give errors.
>
> pvcreate -- ERROR: VGDA in kernel and lvmtab are NOT consistent; please run vgscan
>
> Rebooting does not help.
> Deleting the /etc/lvmtab and /etc/lvmtab.d didn't make any difference.
> I understand that the /etc/lvmconf directory is more of a backup.
> And that directory has a MKP4.conf in it! (I guess vgcreate
> does say that its doing so).
>
> To see if md0 and md1 are functionally ok, I did a pvcreate -ff
> to remove any links between the raid1 devices and any known or unknown
> VGs. Then I did a mke2fs /dev/md0 and /dev/md1 and mounted them and
> used them just fine as regular linux-e2fs file systems.
>
> The LVM came with the version Mandrake 8.0 distribution.
> I used the LV modules out of the 'box'.
> Just in case it makes a difference, I found this about the gcc that came
> with the 8.0 distribution of Mandrake (after having read some comments
> about using gcc versions > 2.95.2)
> % gcc --version
> 2.96
>
> Also, noted that /etc/rc.d/rc.sysinit loads up LVM before it
> loads up the raid module and devices. So, I moved the script lines
> to load up LVM AFTER raid. No difference at all. If any difference
> it should be if I had no problems with the vgcreate...
>
> ========================================
> % vgcreate -v MKP4 /dev/md1
> vgcreate -- checking volume group name
> vgcreate -- checking volume group directory existence
> vgcreate -- locking logical volume manager
> vgcreate -- checking volume group "MKP4" existence
> vgcreate -- counting all existing volume groups
> vgcreate -- reading all physical volume data from disks
> vgcreate -- checking if all given physical volumes in command line are new
> vgcreate -- checking physical volumes name "/dev/md1"
> vgcreate -- checking physical volume "/dev/md1"
> vgcreate -- getting size of physical volume "/dev/md1"
> vgcreate -- size of physical volume "/dev/md1" is 4194048 sectors
> vgcreate -- checking for new physical volume "/dev/md1"
> vgcreate -- checking for identical physical volumes on command line
> vgcreate -- 1 physical volume will be inserted into volume group "MKP4"
> vgcreate -- checking command line arguments
> vgcreate -- INFO: maximum of 256 physical volumes
> vgcreate -- INFO: maximum of 256 logical volumes
> vgcreate -- setting up volume data for creation
> vgcreate -- INFO: using default physical extent size 4 MB
> vgcreate -- INFO: maximum logical volume size is 255.99 Gigabyte
> vgcreate -- storing volume group data on disk(s)
> vgcreate -- removing any invalid special files of volume group "MKP4"
> vgcreate -- creating volume group directory /dev/MKP4
> vgcreate -- creating VGDA for volume group "MKP4" in kernel
> vgcreate -- inserting volume group "MKP4" into "/etc/lvmtab"
> vgcreate -- checking volume group name "MKP4"
> vgcreate -- checking volume group consistency of "MKP4"
> vgcreate -- checking existence of "/etc/lvmtab.d"
> vgcreate -- storing volume group data of "MKP4" in "/etc/lvmtab.d/MKP4.tmp"
> vgcreate -- storing physical volume data of "MKP4" in "/etc/lvmtab.d/MKP4.tmp"
> vgcreate -- storing logical volume data of volume group "MKP4" in "/etc/lvmtab.d/MKP4.tmp"
> vgcreate -- renaming "/etc/lvmtab.d/MKP4.tmp" to "/etc/lvmtab.d/MKP4"
> vgcreate -- doing automatic backup of volume group "MKP4"
> vgcreate -- checking volume group name "MKP4"
> vgcreate -- checking volume group consistency of "MKP4"
> vgcreate -- checking existence of "/etc/lvmconf"
> vgcreate -- storing volume group data of "MKP4" in "/etc/lvmconf/MKP4.conf.tmp"
> vgcreate -- storing physical volume data of "MKP4" in "/etc/lvmconf/MKP4.conf.tmp"
> vgcreate -- storing logical volume data of volume group "MKP4" in "/etc/lvmconf/MKP4.conf.tmp"
> vgcreate -- checking existence of "/etc/lvmconf/MKP4.conf.tmp"
> vgcreate -- checking existence of "/etc/lvmconf/MKP4.conf"
> vgcreate -- renaming "/etc/lvmconf/MKP4.conf.tmp" to "/etc/lvmconf/MKP4.conf"
> vgcreate -- unlocking logical volume manager
> vgcreate -- volume group "MKP4" successfully created and activated
>
>
> % pvscan
> pvscan -- reading all physical volumes (this may take a while...)
> pvscan -- inactive PV "/dev/md0" is in no VG [2 GB]
> pvscan -- ACTIVE PV "/dev/md1" is associated to an unknown VG (run vgscan)
> pvscan -- ACTIVE PV "/dev/hda7" of VG "migataa" [2 GB / 0 free]
> pvscan -- ACTIVE PV "/dev/hda8" of VG "migataa" [2 GB / 0 free]
> pvscan -- ACTIVE PV "/dev/hda10" of VG "maakompa.old" [2 GB / 0 free]
> pvscan -- ACTIVE PV "/dev/hda11" of VG "maakompa.old" [2 GB / 0 free]
> pvscan -- inactive PV "/dev/hda12" is in no VG [3.08 GB]
> pvscan -- inactive PV "/dev/hdc7" is in no VG [2.05 GB]
> pvscan -- ACTIVE PV "/dev/hdc8" of VG "NFS" [2.04 GB / 0 free]
> pvscan -- inactive PV "/dev/hdc10" is in no VG [2.05 GB]
> pvscan -- ACTIVE PV "/dev/hdc11" of VG "DBMS" [2.04 GB / 0 free]
> pvscan -- ACTIVE PV "/dev/hdc12" of VG "WEB" [2.04 GB / 0 free]
> pvscan -- ACTIVE PV "/dev/hdc14" of VG "AUDIO" [3 GB / 4 MB free]
> pvscan -- total: 13 [28.32 GB] / in use: 9 [19.15 GB] / in no VG: 4 [9.18 GB]
>
> % vgscan
> vgscan -- reading all physical volumes (this may take a while...)
> vgscan -- found active volume group "migataa"
> vgscan -- found active volume group "maakompa.old"
> vgscan -- found active volume group "NFS"
> vgscan -- found active volume group "DBMS"
> vgscan -- found active volume group "WEB"
> vgscan -- found active volume group "AUDIO"
> vgscan -- "/etc/lvmtab" and "/etc/lvmtab.d" successfully created
> vgscan -- WARNING: you may not have an actual VGDA backup of your volume groups
>
>
> =====================================
>
> lvmdiskscan -- reading all disks / partitions (this may take a while...)
> lvmdiskscan -- /dev/md0 [ 2 GB] free multiple device
> lvmdiskscan -- /dev/md1 [ 2 GB] free multiple device
> lvmdiskscan -- /dev/hda1 [ 3 GB] Primary LINUX native partition [0x83]
> lvmdiskscan -- /dev/hda2 [ 16.08 GB] DOS extended partition [0x5]
> lvmdiskscan -- /dev/hda5 [ 1023.72 MB] Extended LINUX swap partition [0x82]
> lvmdiskscan -- /dev/hda6 [ 2 GB] Extended [0xFD]
> lvmdiskscan -- /dev/hda7 [ 2 GB] Extended LVM partition [0x8E]
> lvmdiskscan -- /dev/hda8 [ 2 GB] Extended LVM partition [0x8E]
> lvmdiskscan -- /dev/hda9 [ 2 GB] Extended [0xFD]
> lvmdiskscan -- /dev/hda10 [ 2 GB] Extended LVM partition [0x8E]
> lvmdiskscan -- /dev/hda11 [ 2 GB] Extended LVM partition [0x8E]
> lvmdiskscan -- /dev/hda12 [ 3.08 GB] Extended LVM partition [0x8E]
> lvmdiskscan -- /dev/hdc1 [ 8 GB] Primary LVM partition [0x8E]
> lvmdiskscan -- /dev/hdc2 [ 20.63 GB] DOS extended partition [0x5]
> lvmdiskscan -- /dev/hdc5 [ 2.05 GB] Extended LINUX native partition [0x83]
> lvmdiskscan -- /dev/hdc6 [ 2 GB] Extended [0xFD]
> lvmdiskscan -- /dev/hdc7 [ 2.05 GB] Extended LVM partition [0x8E]
> lvmdiskscan -- /dev/hdc8 [ 2.05 GB] Extended LVM partition [0x8E]
> lvmdiskscan -- /dev/hdc9 [ 2 GB] Extended [0xFD]
> lvmdiskscan -- /dev/hdc10 [ 2.05 GB] Extended LVM partition [0x8E]
> lvmdiskscan -- /dev/hdc11 [ 2.05 GB] Extended LVM partition [0x8E]
> lvmdiskscan -- /dev/hdc12 [ 2.05 GB] Extended LVM partition [0x8E]
> lvmdiskscan -- /dev/hdc13 [ 1.24 GB] Extended LINUX swap partition [0x82]
> lvmdiskscan -- /dev/hdc14 [ 3.01 GB] Extended LVM partition [0x8E]
> lvmdiskscan -- 2 disks
> lvmdiskscan -- 0 whole disks
> lvmdiskscan -- 0 loop devices
> lvmdiskscan -- 2 multiple devices
> lvmdiskscan -- 0 network block devices
> lvmdiskscan -- 22 partitions
> lvmdiskscan -- 12 LVM physical volume partitions
>
> =======================================
>
> (Cut n pasted via Win98 telnet window).
> % cat /etc/lvmconf/MKP4.conf
> ´ MKP4™TSbïà]½°Ž³4ÆÈ*n0¾•6«næ!ì ÿPÑ<ƒieT9rIw
> AlvcgJKpcvjcKLiwzfUn0d2j8¼P@Ø!@È!@ üÿ¿Ø!@
> ¿@ä#@ì1@Ø!@”[@ŽÿwK+@Ðüÿ¿@Z@%‰T@Ø!@üG@Ø!@`Ó@,#@X$@V@T@@Z@7‰
> üÿ¿`Ó@”[@$@Ø!@
> ¿@°üÿ¿ÎÒ@ÀÀ7‰¼P@, @,ýÿ¿„Y@Èüÿ¿HM€€šHIä
</dev/md1MKP4linux1.localdoma
> in1002404658 ÿ? ÿ8¦mV8n8epwTZdxyRRHZw4n2t2c8u2uyiJKü00000000000
> 0000000000000000000000000000000000000000
> 0000000000000000000000000000000000000000
> 0000000000000000000000000000000000000000
> 0000000000000000000000000000000000000000
> 0000000000000000000000000000000000000000
> 0000000000000000000000000000000000000000
> 00000
>
> ======================================
>
> % cat /proc/lvm/global
> LVM module version 0.9.1_beta2 (18/01/2001)
>
> Total: 7 VGs 9 PVs 6 LVs (6 LVs open 6 times)
>
> Global: 95531 bytes malloced IOP version: 10 0:15:46 active
>
> VG: migataa [2 PV, 1 LV/1 open] PE Size: 4096 KB
> Usage [KB/PE]: 4186112 /1022 total 4186112 /1022 used 0 /0 free
> PVs: [AA] hda7 2093056 /511 2093056 /511 0 /0
> [AA] hda8 2093056 /511 2093056 /511 0 /0
> LV: [AWDL ] 1 4186112 /1022 1x open
>
> VG: maakompa.old [2 PV, 1 LV/1 open] PE Size: 4096 KB
> Usage [KB/PE]: 4186112 /1022 total 4186112 /1022 used 0 /0 free
> PVs: [AA] hda10 2093056 /511 2093056 /511 0 /0
> [AA] hda11 2093056 /511 2093056 /511 0 /0
> LV: [AWDL ] 1 4186112 /1022 1x open
>
> VG: NFS [1 PV, 1 LV/1 open] PE Size: 4096 KB
> Usage [KB/PE]: 2142208 /523 total 2142208 /523 used 0 /0 free
> PV: [AA] hdc8 2142208 /523 2142208 /523 0 /0
> LV: [AWDL ] 1 2142208 /523 1x open
>
> VG: DBMS [1 PV, 1 LV/1 open] PE Size: 4096 KB
> Usage [KB/PE]: 2142208 /523 total 2142208 /523 used 0 /0 free
> PV: [AA] hdc11 2142208 /523 2142208 /523 0 /0
> LV: [AWDL ] 1 2142208 /523 1x open
>
> VG: WEB [1 PV, 1 LV/1 open] PE Size: 4096 KB
> Usage [KB/PE]: 2142208 /523 total 2142208 /523 used 0 /0 free
> PV: [AA] hdc12 2142208 /523 2142208 /523 0 /0
> LV: [AWDL ] 1 2142208 /523 1x open
>
> VG: AUDIO [1 PV, 1 LV/1 open] PE Size: 4096 KB
> Usage [KB/PE]: 3149824 /769 total 3145728 /768 used 4096 /1 free
> PV: [AA] hdc14 3149824 /769 3145728 /768 4096 /1
> LV: [AWDL ] 1 3145728 /768 1x open
>
> VG: MKP4 [1 PV, 0 LV/0 open] PE Size: 4096 KB
> Usage [KB/PE]: 2093056 /511 total 0 /0 used 2093056 /511 free
> PV: [AA] md1 2093056 /511 0 /0 2093056 /511
> LVs: none
>
> =====================================
>
> % cat /proc/partitions
> major minor #blocks name rio rmerge rsect ruse wio wmerge wsect wuse running use aveq
>
> 9 0 2097024 md0 0 0 0 0 0 0 0 0 0 0 0
> 9 1 2097024 md1 0 0 0 0 0 0 0 0 0 0 0
> 58 0 4186112 lvma 0 0 0 0 0 0 0 0 0 0 0
> 58 1 4186112 lvmb 0 0 0 0 0 0 0 0 0 0 0
> 58 2 2142208 lvmc 0 0 0 0 0 0 0 0 0 0 0
> 58 3 2142208 lvmd 0 0 0 0 0 0 0 0 0 0 0
> 58 4 2142208 lvme 0 0 0 0 0 0 0 0 0 0 0
> 58 5 3145728 lvmf 0 0 0 0 0 0 0 0 0 0 0
> 3 0 20010312 hda 1390 3000 20768 15590 529 1540 15918 11310 0 15500 26900
> 3 1 3145432 hda1 733 1240 15778 6810 503 1417 15432 10780 0 6700 17590
> 3 2 1 hda2 9 0 18 160 0 0 0 0 0 160 160
> 3 5 1048288 hda5 2 0 16 10 0 0 0 0 0 10 10
> 3 6 2097112 hda6 5 0 34 430 1 0 8 0 0 430 430
> 3 7 2097112 hda7 101 875 2030 480 18 9 224 460 0 670 940
> 3 8 2097112 hda8 17 5 44 220 0 0 0 0 0 220 220
> 3 9 2097112 hda9 17 0 58 280 6 114 246 20 0 300 300
> 3 10 2097112 hda10 87 875 1924 640 0 0 0 0 0 640 640
> 3 11 2097112 hda11 21 5 70 250 1 0 8 50 0 300 300
> 3 12 3233632 hda12 11 0 22 200 0 0 0 0 0 200 200
> 22 0 30016224 hdc 971 3525 9346 4700 30 124 518 90 0 4730 4790
> 22 1 8388544 hdc1 9 0 18 30 0 0 0 0 0 30 30
> 22 2 1 hdc2 9 0 18 220 0 0 0 0 0 220 220
> 22 5 2146000 hdc5 39 0 300 320 19 10 232 30 0 330 350
> 22 6 2097112 hdc6 34 0 92 300 1 0 8 0 0 300 300
> 22 7 2146000 hdc7 11 0 22 160 0 0 0 0 0 160 160
> 22 8 2146000 hdc8 91 880 1960 370 1 0 8 10 0 380 380
> 22 9 2097112 hdc9 13 0 50 180 6 114 246 20 0 200 200
> 22 10 2146000 hdc10 11 0 22 140 0 0 0 0 0 140 140
> 22 11 2146000 hdc11 91 880 1960 300 1 0 8 10 0 310 310
> 22 12 2146000 hdc12 91 880 1960 270 1 0 8 10 0 280 280
> 22 13 1305328 hdc13 2 0 16 30 0 0 0 0 0 30 30
> 22 14 3154000 hdc14 91 885 1970 290 1 0 8 10 0 300 300
>
> =====================================
>
> % cat /etc/raidtab
> raiddev /dev/md0
> raid-level 1
> nr-raid-disks 2
> nr-spare-disks 0
> chunk-size 4
> persistent-superblock 1
> device /dev/hda6
> raid-disk 0
> device /dev/hdc6
> raid-disk 1
>
> raiddev /dev/md1
> raid-level 1
> nr-raid-disks 2
> nr-spare-disks 0
> chunk-size 4
> persistent-superblock 1
> device /dev/hda9
> raid-disk 0
> device /dev/hdc9
> raid-disk 1
>
>
> % cat /proc/mdstat
> Personalities : [raid1]
> read_ahead 1024 sectors
> md1 : active raid1 hdc9[1] hda9[0]
> 2097024 blocks [2/2] [UU]
>
> md0 : active raid1 hdc6[1] hda6[0]
> 2097024 blocks [2/2] [UU]
>
> unused devices: <none>
>
> =====================================
>
> % fdisk -l /dev/hda
> Disk /dev/hda: 16 heads, 63 sectors, 39703 cylinders
> Units = cylinders of 1008 * 512 bytes
>
> Device Boot Start End Blocks Id System
> /dev/hda1 * 1 6241 3145432+ 83 Linux
> /dev/hda2 6242 39703 16864848 5 Extended
> /dev/hda5 6242 8321 1048288+ 82 Linux swap
> /dev/hda6 8322 12482 2097112+ fd Linux raid autodetect
> /dev/hda7 12483 16643 2097112+ 8e Linux LVM
> /dev/hda8 16644 20804 2097112+ 8e Linux LVM
> /dev/hda9 20805 24965 2097112+ fd Linux raid autodetect
> /dev/hda10 24966 29126 2097112+ 8e Linux LVM
> /dev/hda11 29127 33287 2097112+ 8e Linux LVM
> /dev/hda12 33288 39703 3233632+ 8e Linux LVM
>
> =====================================
>
> % fdisk -l /dev/hdc
> Disk /dev/hdc: 16 heads, 63 sectors, 59556 cylinders
> Units = cylinders of 1008 * 512 bytes
>
> Device Boot Start End Blocks Id System
> /dev/hdc1 * 1 16644 8388544+ 8e Linux LVM
> /dev/hdc2 16645 59556 21627648 5 Extended
> /dev/hdc5 16645 20902 2146000+ 83 Linux
> /dev/hdc6 20903 25063 2097112+ fd Linux raid autodetect
> /dev/hdc7 25161 29418 2146000+ 8e Linux LVM
> /dev/hdc8 29419 33676 2146000+ 8e Linux LVM
> /dev/hdc9 33677 37837 2097112+ fd Linux raid autodetect
> /dev/hdc10 37935 42192 2146000+ 8e Linux LVM
> /dev/hdc11 42193 46450 2146000+ 8e Linux LVM
> /dev/hdc12 46451 50708 2146000+ 8e Linux LVM
> /dev/hdc13 50709 53298 1305328+ 82 Linux swap
> /dev/hdc14 53299 59556 3154000+ 8e Linux LVM
>
> =====================================
>
> [EoInfo]
>
>
>
> _______________________________________________
> linux-lvm mailing list
> 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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