[Gllug] still wondering about lvm

[Rich Walker]

Adrian McMenamin <adrian at mcmen.demon.co.uk> writes:

> I asked this when I recounted my tail of woe/incompetence on Sunday but
> nobody answered, so here I go again...
>
> adrian at dragoneye:~$ sudo pvscan
>   Incorrect metadata area header checksum
>   Incorrect metadata area header checksum
>   Incorrect metadata area header checksum
>   Incorrect metadata area header checksum
>   PV /dev/sda5   VG Ubuntu   lvm2 [186.07 GB / 0    free]
>   PV /dev/hda5   VG Ubuntu   lvm2 [76.45 GB / 460.00 MB free]
>   PV /dev/hda1               lvm2 [101.76 MB]
>   Total: 3 [262.62 GB] / in use: 2 [262.52 GB] / in no VG: 1 [101.76 MB]
>
>
> Firstly what does Incorrect metadata area header checksum mean and how
> can I fix it (google gives no simple/straight answers afaics and the STN
> is much better here :))

I was going to say:
pvscan checks all possible things for being pv's, and so will whinge
about non-pv's.
then I tried it and didn't get that error.

Can you do "pvscan -v -d" and send the result?

>
> and if /dev/hda5 is in the Ubuntu VG why doesn't df report it:
>
> adrian at dragoneye:~$ df
> Filesystem           1K-blocks      Used Available Use% Mounted on
> /dev/mapper/Ubuntu-root
>                      190527180   2392928 178456020   2% /
> tmpfs                   258160         0    258160   0% /dev/shm
> /dev/sda1               233335     27083    193804  13% /boot

Because you haven't allocated any of it to an LV?

do "sudo lvdisplay" to see the things that should turn up under
/dev/mapper.

cheers, Rich.

>
>
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