[linux-lvm] How can activate the LVM in start

[linux-lvm] How can activate the LVM in start

[Miguel Angel]

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When I restart de computer I have to execute "vgchange -a y " to activate /dev/mi_vg . How can I activate it at the start ? 

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Re: [linux-lvm] How can activate the LVM in start

[bert hubert]

On Mon, May 15, 2000 at 03:57:02PM +0200, Miguel Angel wrote:

> When I restart de computer I have to execute "vgchange -a y " to activate
> /dev/mi_vg . How can I activate it at the start ?

That's life, you need to activate it manually.

-- 
                       |              http://www.rent-a-nerd.nl
                       |                     - U N I X -
                       |          Inspice et cautus eris - D11T'95

Re: [linux-lvm] How can activate the LVM in start

[Patrick Boutilier]

Or stick it in your system startup files like /etc/rc.d/rc.sysinit on REdHat
Linux.


bert hubert wrote:

> On Mon, May 15, 2000 at 03:57:02PM +0200, Miguel Angel wrote:
>
> > When I restart de computer I have to execute "vgchange -a y " to activate
> > /dev/mi_vg . How can I activate it at the start ?
>
> That's life, you need to activate it manually.
>
> --
>                        |              http://www.rent-a-nerd.nl
>                        |                     - U N I X -
>                        |          Inspice et cautus eris - D11T'95

Re: [linux-lvm] How can activate the LVM in start

[Eric M. Hopper]

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On Mon, May 15, 2000 at 03:57:40PM -0300, Patrick Boutilier wrote:
> Or stick it in your system startup files like /etc/rc.d/rc.sysinit on REdHat
> Linux.

	That's all fine and good, but where in rc.sysinit?  I tried
putting it just before the root filesystems are mounted read/write, and
that didn't seem to work.

Have fun (if at all possible),
-- 
Its name is Public Opinion.  It is held in reverence. It settles everything.
Some think it is the voice of God.  Loyalty to petrified opinion never yet
broke a chain or freed a human soul.     ---Mark Twain
-- Eric Hopper (hopper@omnifarious.mn.org  http://omnifarious.mn.org/~hopper) --

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Re: [linux-lvm] How can activate the LVM in start

[Patrick Boutilier]

I put it just before the raid stuff that starts with the following line:

# Add raid devices

It is line 303 in my rc.sysinit

"Eric M. Hopper" wrote:

> On Mon, May 15, 2000 at 03:57:40PM -0300, Patrick Boutilier wrote:
> > Or stick it in your system startup files like /etc/rc.d/rc.sysinit on REdHat
> > Linux.
>
>         That's all fine and good, but where in rc.sysinit?  I tried
> putting it just before the root filesystems are mounted read/write, and
> that didn't seem to work.
>
> Have fun (if at all possible),
> --
> Its name is Public Opinion.  It is held in reverence. It settles everything.
> Some think it is the voice of God.  Loyalty to petrified opinion never yet
> broke a chain or freed a human soul.     ---Mark Twain
> -- Eric Hopper (hopper@omnifarious.mn.org  http://omnifarious.mn.org/~hopper) --
>
>   ------------------------------------------------------------------------
>    Part 1.2Type: application/pgp-signature

Re: [linux-lvm] How can activate the LVM in start

[Paul Jakma]

On Mon, 15 May 2000, Eric M. Hopper wrote:

  	That's all fine and good, but where in rc.sysinit?  I tried
  putting it just before the root filesystems are mounted read/write, and
  that didn't seem to work.

procfs must be mounted, and /etc must be rw. i have it as:

Re: [linux-lvm] How can activate the LVM in start

[bug1]

bert hubert wrote:
> 
> On Mon, May 15, 2000 at 03:57:02PM +0200, Miguel Angel wrote:
> 
> > When I restart de computer I have to execute "vgchange -a y " to activate
> > /dev/mi_vg . How can I activate it at the start ?
> 
> That's life, you need to activate it manually.
> 

Im no kernel hacker, but just wondering, would it be possible to get the
kernel to autodetect lvm partitions in a similar way that raid
autodetection works, or would it not be possible because of LVM's
userland tools.

Glenn

Re: [linux-lvm] How can activate the LVM in start

[bert hubert]

On Fri, May 19, 2000 at 12:14:07AM +1000, bug1 wrote:

> Im no kernel hacker, but just wondering, would it be possible to get the
> kernel to autodetect lvm partitions in a similar way that raid
> autodetection works, or would it not be possible because of LVM's
> userland tools.

It is both possible and desireable. It is not easy however. Doing
'userland things' in the kernel requires immaculate code. Furthermore, the
kernel puts a lot of restraints on what is possible.

Regards,

bert hubert.

-- 
                       |              http://www.rent-a-nerd.nl
                       |                     - U N I X -
                       |          Inspice et cautus eris - D11T'95

Re: [linux-lvm] How can activate the LVM in start

[Christoph Hellwig]

bert hubert schrieb:
> On Fri, May 19, 2000 at 12:14:07AM +1000, bug1 wrote:
>
> > Im no kernel hacker, but just wondering, would it be possible to get the
> > kernel to autodetect lvm partitions in a similar way that raid
> > autodetection works, or would it not be possible because of LVM's
> > userland tools.
>
> It is both possible and desireable. It is not easy however. Doing
> 'userland things' in the kernel requires immaculate code. Furthermore, the
> kernel puts a lot of restraints on what is possible.

I'm working on such a thing now. I've got about 20% ready. I'll try to post
something useable in a few weeks. (NOTE: You have to use devfs for this)

	Christoph