[CentOS] LVM Input/output error

On Mon, 10 Jul 2006 11:13:42 -0400 William L. Maltby <BillsCentOS at triad.rr.com> wrote:

> > I am quite sure that this is an 'sfdisk' issue unrelated to the
> > problem I needed to solve.  But I would like to be careful before
> > I declare [RESOLVED].
>
> My workstation, in use for over a year now, shows the same warning
> message (start=63...) as your transcript. Further, having used sfdisk
> for a *long* time for some fairly rigorous applications, I have complete
> confidence in it. Reread the man sections on the "+" and "-" suffix and
> you get your first clue. The run sfdisk again and add "-uS" and I think
> you will be OK with it.

[snip]

> > Perhaps I will try sfdisk with a different machine to see if
> > there is a difference.
>
> I don't think you'll see any difference if the config is similar. I've
> attached my transcript below.
>

Indeed your example (below) confirms that this is an sfdisk 
issue, unrelated to my LVM problem which I now consider resolved.

Well, this is what I call 2 (or 3) at the price of one.
Thanks for the extra education!

 	Itay


> =============================================================
> [root at wlmlfs08 ~]# sfdisk -l
>
> Disk /dev/hda: 12161 cylinders, 255 heads, 63 sectors/track
> Units = cylinders of 8225280 bytes, blocks of 1024 bytes, counting from 0
>
>    Device Boot Start     End   #cyls    #blocks   Id  System
> /dev/hda1   *      0+     12      13-    104391   83  Linux
> /dev/hda2         13    2445    2433   19543072+  8e  Linux LVM
> /dev/hda3       2446    4876    2431   19527007+  8e  Linux LVM
> /dev/hda4          0       -       0          0    0  Empty
> Warning: start=63 - this looks like a partition rather than
> the entire disk. Using fdisk on it is probably meaningless.
> [Use the --force option if you really want this]
>
> [root at wlmlfs08 ~]# sfdisk -l -uS
>
> Disk /dev/hda: 12161 cylinders, 255 heads, 63 sectors/track
> Units = sectors of 512 bytes, counting from 0
>
>    Device Boot    Start       End   #sectors  Id  System
> /dev/hda1   *        63    208844     208782  83  Linux
> /dev/hda2        208845  39294989   39086145  8e  Linux LVM
> /dev/hda3      39294990  78349004   39054015  8e  Linux LVM
> /dev/hda4             0         -          0   0  Empty
> Warning: start=63 - this looks like a partition rather than
> the entire disk. Using fdisk on it is probably meaningless.
> [Use the --force option if you really want this]
> [root at wlmlfs08 ~]#
> 
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