[linux-lvm] problem when creating a volumegroup on an external drive

[Ming Zhang]

On Sat, 2006-05-13 at 00:25 +0200, Joep Blom wrote:
> Klaus Strebel wrote:
> 
> >Hi Joep,
> >
> >well, what Patrick meant is, that your system (forget that USB drive in
> >this moment) already has a VG called VolGroup00 on your internal disk.
> >The modern FC distros use it as default (i think, i'm using SuSE ;-) ).
> >Before messing up more using fdisk, just provide us with the output of a
> >vgdisplay -a ;-) get an impression of the 'disaster' :-).
> >
> >Btw. the volume group your wanted to create has the name VG0, not
> >VolGroup00 ;-) ..
> >
> >Ciao
> >Klaus
> >
> >  
> >
> Klaus & Pattrick,
> I'm sorry I asked the wrong question (stupid me!). I interpreted the 
> output of vgcreate wrongly. Yes, Klaus, the VolGroup00 was automatically 
> created by FC when I did an upgrade.
> The correct question is that VG01 (the name I gave it) occupies 232.88 
> Gb although I had asked for 250 Gb. Where are the 17.2 GB and can I add 


when u buy the disk, vendor count it as 250GB or 250 * 1000 * 1000 *
1000 bytes.

when LVM count it, it is 250 * 1000 * 1000 * 1000 / 1024 / 1024/ 1024 =
232.83GB.

check online, many discussion about this 1024 and 1000 issue.


> them to VG01.
> When I look with fdisk it says that no information is available for 
> /dev/sda1 and "invalid flag 0x0000 of partition table 4 will be 
> corrected by w(rite)".
> I assume that all problems have arisen due to the fact that I did a 
> pvcreate on a disk which has a W95 FAT32 partition ( of 250 Gb).
> I assume the best way is to delete the partition completely and create a 
> new partition (with parted or fdisk?) or are there better methods? Do I 
> have to remove VG01 first?
> Please, be lenient to me for these basic questions.
> Joep
> 
> 
> _______________________________________________
> linux-lvm mailing list
> linux-lvm at redhat.com
> https://www.redhat.com/mailman/listinfo/linux-lvm
> read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/