[linux-lvm] kernel reports vg twice

[linux-lvm] kernel reports vg twice

[Wichert Akkerman]

Since I got exactly no response to this I'll report it with a
different subject.

LVM still does not work for me on one of my machines work:

cloud:/dev/discs/disc1# vgscan
vgscan -- reading all physical volumes (this may take a while...)
vgscan -- found active volume group "vg_user"
vgscan -- "/etc/lvmtab" and "/etc/lvmtab.d" successfully created
vgscan -- WARNING: This program does not do a VGDA backup of your volume group

cloud:/dev/discs/disc1# vgchange -a y
vgchange -- ERROR: VGDA in kernel and lvmtab are NOT consistent; please run vgscan

I did a bit of looking around and it seems the confusement is in the
kernel: when lvm_check_kernel_lvmtab_consistency() compares the kernel
and the lvmtab entries the list from the kernel mentions the vg_user
volume group twice, while the lvmtab only mentions it once. This
results in an immediate abort and as a result I can't do anything
with the LVM tools.

Wichert.

-- 
  _________________________________________________________________
 /       Nothing is fool-proof to a sufficiently talented fool     \
| wichert@wiggy.net                   http://www.liacs.nl/~wichert/ |
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----- End forwarded message -----

-- 
  _________________________________________________________________
 /       Nothing is fool-proof to a sufficiently talented fool     \
| wichert@wiggy.net                   http://www.liacs.nl/~wichert/ |
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Re: [linux-lvm] kernel reports vg twice

[Heinz J . Mauelshagen]

Wichert,

which LVM version are you using? 1.0.1 rc4 is recommended.

Regards,
Heinz    -- The LVM Guy --

On Mon, Oct 08, 2001 at 04:00:13PM +0200, Wichert Akkerman wrote:
> 
> Since I got exactly no response to this I'll report it with a
> different subject.
> 
> LVM still does not work for me on one of my machines work:
> 
> cloud:/dev/discs/disc1# vgscan
> vgscan -- reading all physical volumes (this may take a while...)
> vgscan -- found active volume group "vg_user"
> vgscan -- "/etc/lvmtab" and "/etc/lvmtab.d" successfully created
> vgscan -- WARNING: This program does not do a VGDA backup of your volume group
> 
> cloud:/dev/discs/disc1# vgchange -a y
> vgchange -- ERROR: VGDA in kernel and lvmtab are NOT consistent; please run vgscan
> 
> I did a bit of looking around and it seems the confusement is in the
> kernel: when lvm_check_kernel_lvmtab_consistency() compares the kernel
> and the lvmtab entries the list from the kernel mentions the vg_user
> volume group twice, while the lvmtab only mentions it once. This
> results in an immediate abort and as a result I can't do anything
> with the LVM tools.
> 
> Wichert.
> 
> -- 
>   _________________________________________________________________
>  /       Nothing is fool-proof to a sufficiently talented fool     \
> | wichert@wiggy.net                   http://www.liacs.nl/~wichert/ |
> | 1024D/2FA3BC2D 576E 100B 518D 2F16 36B0  2805 3CB8 9250 2FA3 BC2D |
> 
> _______________________________________________
> linux-lvm mailing list
> linux-lvm@sistina.com
> http://lists.sistina.com/mailman/listinfo/linux-lvm
> read the LVM HOW-TO at http://www.sistina.com/lvm/Pages/howto.html
> 
> 
> ----- End forwarded message -----
> 
> -- 
>   _________________________________________________________________
>  /       Nothing is fool-proof to a sufficiently talented fool     \
> | wichert@wiggy.net                   http://www.liacs.nl/~wichert/ |
> | 1024D/2FA3BC2D 576E 100B 518D 2F16 36B0  2805 3CB8 9250 2FA3 BC2D |
> 
> _______________________________________________
> linux-lvm mailing list
> linux-lvm@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@Sistina.com                           +49 2626 141200
                                                       FAX 924446
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-

Re: [linux-lvm] kernel reports vg twice

[Wichert Akkerman]

Previously Heinz J . Mauelshagen wrote:
> which LVM version are you using? 1.0.1 rc4 is recommended.

kernel or userland? kernel is whatever is in 2.4.10-acRecent
currently, none of the released patches applied to 2.4.10 or
an ac variant and I couldn't easily find a fix for that.

userland is 1.0.1rc3

Wichert.

-- 
  _________________________________________________________________
 /       Nothing is fool-proof to a sufficiently talented fool     \
| wichert@wiggy.net                   http://www.liacs.nl/~wichert/ |
| 1024D/2FA3BC2D 576E 100B 518D 2F16 36B0  2805 3CB8 9250 2FA3 BC2D |

Re: [linux-lvm] kernel reports vg twice

[Andreas Dilger]

On Oct 08, 2001  16:00 +0200, Wichert Akkerman wrote:
> LVM still does not work for me on one of my machines work:
> 
> cloud:/dev/discs/disc1# vgscan
> vgscan -- reading all physical volumes (this may take a while...)
> vgscan -- found active volume group "vg_user"
> vgscan -- "/etc/lvmtab" and "/etc/lvmtab.d" successfully created
> vgscan -- WARNING: This program does not do a VGDA backup of your volume group
> 
> cloud:/dev/discs/disc1# vgchange -a y
> vgchange -- ERROR: VGDA in kernel and lvmtab are NOT consistent; please run vgscan
> 
> I did a bit of looking around and it seems the confusement is in the
> kernel: when lvm_check_kernel_lvmtab_consistency() compares the kernel
> and the lvmtab entries the list from the kernel mentions the vg_user
> volume group twice, while the lvmtab only mentions it once. This
> results in an immediate abort and as a result I can't do anything
> with the LVM tools.

I take it that this is after a reboot?

Does "vgscan -d -v" process vg_user twice, or does "vgchange -a y -v -d"
send vg_user to the kernel twice?  Don't know what else to say.

Cheers, Andreas
--
Andreas Dilger  \ "If a man ate a pound of pasta and a pound of antipasto,
                 \  would they cancel out, leaving him still hungry?"
http://www-mddsp.enel.ucalgary.ca/People/adilger/               -- Dogbert