[linux-lvm] Is my xen hosting tech support misleading me?
Tim Post
echo at echoreply.us
Tue Feb 3 08:32:27 UTC 2009
Sorry to top post, but of course make sure the appropriate modules are
loaded on boot (again, emphasis on not needing them to pivot_root)
unless you have a VERY cooperative provider.
Cheers,
--Tim
On Tue, 2009-02-03 at 15:34 +0800, Tim Post wrote:
> On Tue, 2009-02-03 at 09:02 +0200, Shachar Or wrote:
> > Hello.
> >
> > Attached is a question I've asked my xen hosting provider's technical
> > support and the answer they've supplied.
> >
> > Sam sais "There is no LVM module available, so you would need to compile
> > LVM by yourself from the Xen kernel sources." but I've no problem
> > loading dm_mod and to my understanding of LVM, this is the only module
> > needed. So is he just wrong?
>
> Probably, however your going to need to find out if you have the entire
> dm_* family for the functionality that you want (i.e. snapshots). You
> should (on your VM) simply be able to install lvm2 via yum, apt-get or
> whatever packaging mechanism is provided by your distribution.
>
> I use lvm2 on literally hundreds of paravirtualized Xen guests without a
> problem.
>
> A word of warning, don't make LV's (or their snapshots) a prerequisite
> to boot .. since you have no control over your initrd. If your provider
> has given you xvda and xvdb , use xvdb for your pv, keep the root file
> system on xvda.
>
> Cheers,
> --Tim
>
>
> >
> > Thanks.
> > email message attachment, "הודעה מועברת - <Ref1876314> DOMAIN :"
> > > -------- Forwarded Message --------
> > > From: Gandi Hosting <hosting at support.gandi.net>
> > > To: dawnlight at lavabit.com
> > > Subject: <Ref1876314> DOMAIN :
> > > Date: Mon, 2 Feb 2009 15:09:28 +0100 (CET)
> > >
> > > Hello,
> > >
> > > Thank you for your patience.
> > >
> > > There is no LVM module available, so you would need to compile LVM
> > > by yourself from the Xen kernel sources.
> > >
> > > You will then need to activate the module.
> > >
> > > You should be able to find the appropriate help online.
> > >
> > >
> > > I am at your disposal should you need any further information.
> > >
> > > Best regards,
> > > Sam
> > >
> > > ---------------------------------------
> > > Are you satisfied with the quality of the reply you received?
> > > YES: http://www.gandi.net/faq/feedback/yes
> > > NO: http://www.gandi.net/faq/feedback/no
> > >
> > > I would like to give more detailed feedback:
> > > http://www.gandi.net/faq/feedback
> > > ---------------------------------------
> > >
> > >
> > >
> > > Help about hosting / aide sur l'hébergement: http://wiki.gandi.net/
> > >
> > > GANDI
> > > http://www.gandi.net
> > >
> > >
> > > --------------------------------------
> > > Product : hosting
> > > Category :
> > > Question :
> > > FirstName : Shachar
> > > LastName : Or
> > > CompanyName :
> > > Email : dawnlight at lavabit.com
> > > Domain :
> > > DomainNB :
> > > Handle : SO866-GANDI
> > > Anciennet :
> > > Transaction :
> > > Message : Hello.
> > >
> > > This is a technical question about a problem I'm experiencing with LVM on my virtual server.
> > >
> > > The issue is that logical volumes are not activated on bootup. This prevents me from using /etc/fstab to mount them.
> > >
> > > root at shacharor:~# lvdisplay | grep 'LV Status' && udevtrigger && udevsettle && lvdisplay | grep 'LV Status'
> > > LV Status NOT available
> > > LV Status available
> > > root at shacharor:~#
> > >
> > > This shows that udev handles logical volumes correctly and does activate them. But why doesn't it do it on bootup?
> > >
> > > Thanks.
> > >
> > >
> > _______________________________________________
> > 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/
>
>
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