[linux-lvm] Volume group not found on restart

Murthy Kambhampaty Murthy.Kambhampaty at goeci.com
Tue May 14 13:15:02 UTC 2002


Indeed, yes. Output with -d option attached:

# /sbin/vgchange -a y -d
<1> lvm_get_iop_version -- CALLED
<22> lvm_check_special -- CALLED
<22> lvm_check_special -- LEAVING
<1> lvm_get_iop_version -- AFTER ioctl ret: 0
<1> lvm_get_iop_version -- LEAVING with ret: 10
<1> lvm_lock -- CALLED
<22> lvm_check_special -- CALLED
<22> lvm_check_special -- LEAVING
<1> lvm_lock -- LEAVING with ret: 0
<1> lvm_tab_vg_check_exist_all_vg -- CALLED
<22> lvm_tab_read -- CALLED
<22> lvm_tab_read -- LEAVING with ret: 0  data: 804D460  size: 1
<1> lvm_tab_vg_check_exist_all_vg -- LEAVING with ret: 0
vgchange -- no volume groups found

<1> lvm_unlock -- CALLED
<1> lvm_unlock -- LEAVING with ret: 0

This is what let me to check the VGDA backups in /etc/lvmconf, and the
output from "/sbin/vgcfgrestore -t -d -n db_vol  -ll" is reported in my
original message (see copy below).

Thanks for the help,
	Murthy

> -----Original Message-----
> From: John Moser [mailto:jmoser at erc.wisc.edu]
> Sent: Tuesday, May 14, 2002 14:10
> To: Murthy Kambhampaty
> Cc: 'linux-lvm at sistina.com'
> Subject: Re: [linux-lvm] Volume group not found on restart
> 
> 
> Just a quick glance over your problem (I'm not too familiar 
> with the rest
> of your problem).  But the most common reason for that 
> particular error
> (not a valid block device), is because the volume group isn't active.
> Have you tried:
> 
> vgchange -a y
> 
> first, and then try to mount your filesystem?
> 
> -John
> 
> 
> On Tue, 14 May 2002, Murthy Kambhampaty wrote:
> 
> > I have an unexpected error reading an LV:
> >
> > # mount -a
> > mount: /dev/db_vol/db_dir is not a valid block device
> >
> > I'd like help recovering the data on the partition. 
> Information about the
> > circumstance under which I first got the error, and some 
> addtional info are
> > attached below. The system is a RH7.2 system installed with 
> the XFS1.0.2a
> > installer and updated to the XFS CVS kernel from April 4. 
> (LVM version in
> > kernel with LVM tools from lvm-tools-1.0.1rc4-2 rpm).
> >
> > Thanks for the help,
> > 	Murthy
> >
> > Addtional information follows:
> >
> > I have a VG called "db_vol" and an LV within called 
> "db_dir" on a hardware
> > RAID-5 volume hanging off a Mylex Acceleraid 352 raid 
> controller (linux
> > DAC960 driver). This volume has been up and functional, with an XFS
> > filesystem for a while (the last VGDA backup is from March 
> 21). Yesterday, I
> > added a new RAID set and did a test on the new volume 
> (defined a single
> > (linux native) primaly partition and XFS filesystem on the 
> partition then
> > mounted the partition to /mnt/tempmnt) with "time dd=/dev/zero
> > of=/mnt/tempmnt/mungie.txt bs=512k count=10000". This led 
> to my system
> > slowing down and at logout I got an error message saying 
> init was spawning
> > ttys too fast. I power-cycled my machine after a short 
> wait, with gritted
> > teeth, and on the XFS check message, I chose "yes" to 
> recheck the integrity
> > of the XFS filesystems. The unexpected error message has 
> been produced since
> > then.
> >
> > vgdisplay output for the volume is:
> >
> > # /sbin/vgdisplay -d db_vol
> > <1> lvm_check_kernel_lvmtab_consistency -- CALLED
> > <22> vg_check_active_all_vg -- CALLED
> > <333> vg_status_get_count -- CALLED
> > <333> vg_status_get_count -- LEAVING with ret: 0
> > <22> vg_check_active_all_vg -- LEAVING with ret: -331  ptr: (null)
> > <22> lvm_tab_vg_check_exist_all_vg -- CALLED
> > <333> lvm_tab_read -- CALLED
> > <333> lvm_tab_read -- LEAVING with ret: 0  data: 804B4A0  size: 1
> > <22> lvm_tab_vg_check_exist_all_vg -- LEAVING with ret: 0
> > <1> lvm_check_kernel_lvmtab_consistency -- LEAVING with ret: 1
> > <1> lvm_get_iop_version -- CALLED
> > <22> lvm_check_special -- CALLED
> > <22> lvm_check_special -- LEAVING
> > <1> lvm_get_iop_version -- AFTER ioctl ret: 0
> > <1> lvm_get_iop_version -- LEAVING with ret: 10
> > <1> vg_check_name -- CALLED with VG: db_vol
> > <22> lvm_check_chars -- CALLED with name: "db_vol"
> > <22> lvm_check_chars -- LEAVING with ret: 0
> > <1> vg_check_name -- LEAVING with ret: 0
> > <1> lvm_tab_vg_check_exist -- CALLED with vg_name: "db_vol"
> > <22> vg_check_name -- CALLED with VG: db_vol
> > <333> lvm_check_chars -- CALLED with name: "db_vol"
> > <333> lvm_check_chars -- LEAVING with ret: 0
> > <22> vg_check_name -- LEAVING with ret: 0
> > <22> lvm_tab_read -- CALLED
> > <22> lvm_tab_read -- LEAVING with ret: 0  data: 804B4A0  size: 1
> > <1> lvm_tab_vg_check_exist -- LEAVING with ret: 0
> > vgdisplay -- volume group "db_vol" not found
> >
> >
> > When I check the db_vol.conf file in /etc/lvmconf, I get  
> "vgcfgrestore --
> > ERROR: different structure size stored in 
> "/etc/lvmconf/db_vol.conf" than
> > expected in file vg_cfgrestore.c [line 120]" (full command 
> output below).
> >
> > /sbin/vgcfgrestore -t -d -n db_vol  -ll
> > <1> vg_check_name -- CALLED with VG: db_vol
> > <22> lvm_check_chars -- CALLED with name: "db_vol"
> > <22> lvm_check_chars -- LEAVING with ret: 0
> > <1> vg_check_name -- LEAVING with ret: 0
> > <1> lvm_get_iop_version -- CALLED
> > <22> lvm_check_special -- CALLED
> > <22> lvm_check_special -- LEAVING
> > <1> lvm_get_iop_version -- AFTER ioctl ret: 0
> > <1> lvm_get_iop_version -- LEAVING with ret: 10
> > <1> lvm_lock -- CALLED
> > <22> lvm_check_special -- CALLED
> > <22> lvm_check_special -- LEAVING
> > <1> lvm_lock -- LEAVING with ret: 0
> > <1> lvm_dont_interrupt -- CALLED
> > <1> lvm_dont_interrupt -- LEAVING
> > <1> vg_cfgrestore -- CALLED
> > <22> vg_check_name -- CALLED with VG: db_vol
> > <333> lvm_check_chars -- CALLED with name: "db_vol"
> > <333> lvm_check_chars -- LEAVING with ret: 0
> > <22> vg_check_name -- LEAVING with ret: 0
> > vgcfgrestore -- ERROR: different structure size stored in
> > "/etc/lvmconf/db_vol.conf" than expected in file 
> vg_cfgrestore.c [line 120]
> > <1> vg_cfgrestore -- LEAVING with ret: -328
> > <1> lvm_error -- CALLED with: -328
> > <1> lvm_error -- LEAVING with: "vg_cfgrestore(): read"
> > vgcfgrestore -- ERROR "vg_cfgrestore(): read" restoring volume group
> > "db_vol"
> >
> > <1> lvm_unlock -- CALLED
> > <1> lvm_unlock -- LEAVING with ret: 0
> >
> >
> >
> > _______________________________________________
> > 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
> >
> 




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