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Re: Adding a new hard drive to LVM



On Tue, 2005-06-07 at 19:35 +0100, Derek Scollon wrote:
> I'm running FC3 and currently have one 300GB SATA drive which looks like this.
> 
> Filesystem           1K-blocks      Used Available Use% Mounted on
> /dev/mapper/VolGroup00-LogVol00
>                      286285288 239994144  31748708  89% /
> /dev/sda1               101086     33733     62134  36% /boot
> none                    517796         0    517796   0% /dev/shm
> 
>  I've added a second drive today and am following the instructions here...
> 
> http://www.hants.lug.org.uk/cgi-bin/wiki.pl?action=browse&id=LinuxHints/LogicalVolumeManagement&oldid=LogicalVolumeManagement (section titled "Adding another disk")
> 
> ...to add this drive to the volume group. I've successfully got as far as step 5 and hit a problem, since trying to unmount that volume group tells me that / is in use. Trying step 6 warns me that running e2fsck on a mounted filesystem can cause severe damage, at which point I chicken out. Is it safe to skip to step 7 and run resize2fs without unmounting the filesystem first or should I be doing something different?

This may or may not work, but it's safe and it'll just refuse to do it
if it can't:

# ext2online /dev/VolGroup00/LogVol00

You don't need to unmount the partition; in fact it won't work if you
do.

This assumes you're using an ext2 or ext3 filesystem.

Paul.
-- 
Paul Howarth <paul city-fan org>


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