[linux-lvm] startup stuff

[linux-lvm] startup stuff

[JAmes]

Hello

I am using debian Linux, and have farely successfully installed LVM. I
have just to do the lvcreate -ay at startup. I assume that thi smust go in

/etc/rc2.d 

but using what S??

Any help extremely apreciated...

James

Re: [linux-lvm] startup stuff

[Patrick Caulfield]

On Fri, Feb 02, 2001 at 10:02:17AM +0100, JAmes wrote:
> 
> Hello
> 
> I am using debian Linux, and have farely successfully installed LVM. I
> have just to do the lvcreate -ay at startup. I assume that thi smust go in
> 
> /etc/rc2.d 
> 
> but using what S??
> 

So long as it's before anything that uses the volumes you have on LVM you should
be OK. I would be tempted to put it in at 15, ie after kerneld and before NFS
and anacron.

patrick

Re: [linux-lvm] startup stuff

[Heinz J. Mauelshagen]

On Fri, Feb 02, 2001 at 10:02:17AM +0100, JAmes wrote:
> 
> Hello
> 
> I am using debian Linux, and have farely successfully installed LVM. I
> have just to do the lvcreate -ay at startup. I assume that thi smust go in

You surely mean "vgchange -ay".

> 
> /etc/rc2.d 
> 
> but using what S??

It must run after boot in order to activate VGs before any accesses to
LVs (for eg. containing filesystems) take place and after modules were loaded.

Use one of the /etc/init.d/ scripts as a template to create
/etc/init.d/lvm containing "vgscan;vgchange -ay".

Create a symlink /etc/rcS.d/S25lvm pointing to this file please.

> 
> Any help extremely apreciated...
> 
> James
> 
> _______________________________________________
> linux-lvm mailing list
> linux-lvm@sistina.com
> http://lists.sistina.com/mailman/listinfo/linux-lvm

-- 

Regards,
Heinz    -- The LVM Guy --

*** Software bugs are stupid.
    Nevertheless it needs not so stupid people to solve them ***

=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-

Heinz Mauelshagen                                 Sistina Software Inc.
Senior Consultant/Developer                       Am Sonnenhang 11
                                                  56242 Marienrachdorf
                                                  Germany
Mauelshagen@Sistina.com                           +49 2626 141200
                                                       FAX 924446
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-

Re: [linux-lvm] startup stuff

[JAmes]

Hello

I did what you suggested but nothing happens attall! I may be wrong but I
have the impression that on a normal restart on rc2.d is 'looked' at.

> You surely mean "vgchange -ay".

yep :-)

help :-)

On Fri, 2 Feb 2001, Heinz J. Mauelshagen wrote:

> On Fri, Feb 02, 2001 at 10:02:17AM +0100, JAmes wrote:
> > 
> > Hello
> > 
> > I am using debian Linux, and have farely successfully installed LVM. I
> > have just to do the lvcreate -ay at startup. I assume that thi smust go in
> 
> You surely mean "vgchange -ay".
> 
> > 
> > /etc/rc2.d 
> > 
> > but using what S??
> 
> It must run after boot in order to activate VGs before any accesses to
> LVs (for eg. containing filesystems) take place and after modules were loaded.
> 
> Use one of the /etc/init.d/ scripts as a template to create
> /etc/init.d/lvm containing "vgscan;vgchange -ay".
> 
> Create a symlink /etc/rcS.d/S25lvm pointing to this file please.
> 
> > 
> > Any help extremely apreciated...
> > 
> > James
> > 
> > _______________________________________________
> > linux-lvm mailing list
> > linux-lvm@sistina.com
> > http://lists.sistina.com/mailman/listinfo/linux-lvm
> 
> -- 
> 
> Regards,
> Heinz    -- The LVM Guy --
> 
> *** Software bugs are stupid.
>     Nevertheless it needs not so stupid people to solve them ***
> 
> =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
> 
> Heinz Mauelshagen                                 Sistina Software Inc.
> Senior Consultant/Developer                       Am Sonnenhang 11
>                                                   56242 Marienrachdorf
>                                                   Germany
> Mauelshagen@Sistina.com                           +49 2626 141200
>                                                        FAX 924446
> =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
> _______________________________________________
> linux-lvm mailing list
> linux-lvm@sistina.com
> http://lists.sistina.com/mailman/listinfo/linux-lvm
> 

Re: [linux-lvm] startup stuff

[Holger Grothe]

Hi,
> 
> I did what you suggested but nothing happens attall! I may be wrong but I
> have the impression that on a normal restart on rc2.d is 'looked' at.
> 
Don't know what you mean by "normal restart". On a Debian Potato 
(stable Version) one have in rcS.d

S05keymaps.sh
S10checkroot.sh
[...]
S20modutils
S30checkfs.sh
[...]

So the lvm-stuff (vgchange -ay) should be done before checkfs.sh :-)

> > You surely mean "vgchange -ay".
> 
> yep :-)
> 
> help :-)

A very simple version of the lvm startup script (Debian: /etc/init.d/lvm) 
may look like
-------------------------------------------------------------------------
#! /bin/sh
case "$1" in
        start|"")
                if [ -x /sbin/vgchange ]
                then
                        /sbin/vgchange -a y
                fi
                ;;
        stop)
                if [ -r /etc/lvmtab -a -x /sbin/vgchange ]
                then
                        /sbin/vgchange -a n
                fi
                ;;
        *)
                echo "Usage: $0 {start|stop}"
                exit 1
esac

exit 0
------------------------------------------------------------------------

Don't forget the x-bit.

Holger
--
Holger Grothe  (Email: grothe@mathematik.tu-darmstadt.de)
Fachbereich Mathematik, TU Darmstadt

Re: [linux-lvm] startup stuff

[Heinz J. Mauelshagen]

Please have a look at Holger Grothe's related comment and check,
if Symlink etc. is set up correctly.

Heinz

On Fri, Feb 02, 2001 at 12:02:00PM +0100, JAmes wrote:
> 
> Hello
> 
> I did what you suggested but nothing happens attall! I may be wrong but I
> have the impression that on a normal restart on rc2.d is 'looked' at.
> 
> > You surely mean "vgchange -ay".
> 
> yep :-)
> 
> help :-)
> 
> On Fri, 2 Feb 2001, Heinz J. Mauelshagen wrote:
> 
> > On Fri, Feb 02, 2001 at 10:02:17AM +0100, JAmes wrote:
> > > 
> > > Hello
> > > 
> > > I am using debian Linux, and have farely successfully installed LVM. I
> > > have just to do the lvcreate -ay at startup. I assume that thi smust go in
> > 
> > You surely mean "vgchange -ay".
> > 
> > > 
> > > /etc/rc2.d 
> > > 
> > > but using what S??
> > 
> > It must run after boot in order to activate VGs before any accesses to
> > LVs (for eg. containing filesystems) take place and after modules were loaded.
> > 
> > Use one of the /etc/init.d/ scripts as a template to create
> > /etc/init.d/lvm containing "vgscan;vgchange -ay".
> > 
> > Create a symlink /etc/rcS.d/S25lvm pointing to this file please.
> > 
> > > 
> > > Any help extremely apreciated...
> > > 
> > > James
> > > 
> > > _______________________________________________
> > > linux-lvm mailing list
> > > linux-lvm@sistina.com
> > > http://lists.sistina.com/mailman/listinfo/linux-lvm
> > 

=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-

Heinz Mauelshagen                                 Sistina Software Inc.
Senior Consultant/Developer                       Am Sonnenhang 11
                                                  56242 Marienrachdorf
                                                  Germany
Mauelshagen@Sistina.com                           +49 2626 141200
                                                       FAX 924446
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-

Re: [linux-lvm] startup stuff an dnew question :-)

[JAmes]

It works ! Thanks to everybody who helped. I am too used to debian
packages doing all for you.

/etc/rcS.d is the one that worked. So has init2 got anything to do with 
/etc/rc2.d ???

Another question I have is can anybody show me a good install plan, a
partition scheme for a machine where everything but the / is lvm'ed. I
haven't seen this discussed anywhere. At the moment I am just testing on a
box with a partition / a swap and a /home . 

If I did a standard installation using say 5 partitions / /usr /var/ /home
swap, it would be a pain transferring this to an lvm system. So how do you
lot do it ?

my partitions at the moment

 Device Boot    Start       End    Blocks   Id  System
/dev/hda1   *         1       608   4883728+  83  Linux
/dev/hda2           609       627    152617+  82  Linux swap
/dev/hda3           628       749    979965   83  Linux
/dev/hda4           750      1601   6843690    5  Extended
/dev/hda5           750       871    979933+  8e  Linux LVM
/dev/hda6           872       993    979933+  8e  Linux LVM
/dev/hda7           994      1601   4883728+  8e  Linux LVM

Thanks again.
 

On Fri, 2 Feb 2001, Heinz J. Mauelshagen wrote:

> 
> Please have a look at Holger Grothe's related comment and check,
> if Symlink etc. is set up correctly.
> 
> Heinz
> 
> On Fri, Feb 02, 2001 at 12:02:00PM +0100, JAmes wrote:
> > 
> > Hello
> > 
> > I did what you suggested but nothing happens attall! I may be wrong but I
> > have the impression that on a normal restart on rc2.d is 'looked' at.
> > 
> > > You surely mean "vgchange -ay".
> > 
> > yep :-)
> > 
> > help :-)
> > 
> > On Fri, 2 Feb 2001, Heinz J. Mauelshagen wrote:
> > 
> > > On Fri, Feb 02, 2001 at 10:02:17AM +0100, JAmes wrote:
> > > > 
> > > > Hello
> > > > 
> > > > I am using debian Linux, and have farely successfully installed LVM. I
> > > > have just to do the lvcreate -ay at startup. I assume that thi smust go in
> > > 
> > > You surely mean "vgchange -ay".
> > > 
> > > > 
> > > > /etc/rc2.d 
> > > > 
> > > > but using what S??
> > > 
> > > It must run after boot in order to activate VGs before any accesses to
> > > LVs (for eg. containing filesystems) take place and after modules were loaded.
> > > 
> > > Use one of the /etc/init.d/ scripts as a template to create
> > > /etc/init.d/lvm containing "vgscan;vgchange -ay".
> > > 
> > > Create a symlink /etc/rcS.d/S25lvm pointing to this file please.
> > > 
> > > > 
> > > > Any help extremely apreciated...
> > > > 
> > > > James
> > > > 
> > > > _______________________________________________
> > > > linux-lvm mailing list
> > > > linux-lvm@sistina.com
> > > > http://lists.sistina.com/mailman/listinfo/linux-lvm
> > > 
> 
> =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
> 
> Heinz Mauelshagen                                 Sistina Software Inc.
> Senior Consultant/Developer                       Am Sonnenhang 11
>                                                   56242 Marienrachdorf
>                                                   Germany
> Mauelshagen@Sistina.com                           +49 2626 141200
>                                                        FAX 924446
> =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
> _______________________________________________
> linux-lvm mailing list
> linux-lvm@sistina.com
> http://lists.sistina.com/mailman/listinfo/linux-lvm
> 

Re: [linux-lvm] startup stuff an dnew question :-)

[Ulf Bartelt]

JAmes wrote:
> 
> It works ! Thanks to everybody who helped. I am too used to debian
> packages doing all for you.
> 
> /etc/rcS.d is the one that worked. So has init2 got anything to do with
> /etc/rc2.d ???
> 
> Another question I have is can anybody show me a good install plan, a
> partition scheme for a machine where everything but the / is lvm'ed. I
> haven't seen this discussed anywhere. At the moment I am just testing on a
> box with a partition / a swap and a /home .
> 
> If I did a standard installation using say 5 partitions / /usr /var/ /home
> swap, it would be a pain transferring this to an lvm system. So how do you
> lot do it ?

This is how I did it on my router/mailserver:

Filesystem           1k-blocks      Used Available Use% Mounted on
/dev/hda2                31729     14865     15226  49% /
/dev/hda1                 3963      1273      2486  34% /boot
/dev/vgodo/tmp           63461        19     60821   0% /tmp
/dev/vgodo/usr          222135    180405     30262  86% /usr
/dev/vgodo/var           63461     27578     33917  45% /var
/dev/vgodo/home          63461      2467     60339   4% /home
/dev/vgodo/spool_squid  507748     23395    458139   5% /var/spool/squid

But the tricky part is: hda2 and hda1 are LVs too...

I just faked partition map entries for them and I use them only by this
"partition aliases", so I can boot a system living totally in LVs using
conventional things like lilo...

Have a look into http://www.freenet.de/y.e.t.i./

I'm using this trick for over a year now and I'm still happy with it.
All my Linuxes @home are set up this way ( if not a diskless install :-)
)...

Bye!
	Ulf.

Re: [linux-lvm] startup stuff an dnew question :-)

[zoo1]

[-- Attachment #1: Type: text/plain, Size: 745 bytes --]

On Mon, Feb 05, 2001 at 09:18:31AM +0100, Ulf Bartelt wrote:

>This is how I did it on my router/mailserver:

[...]

>But the tricky part is: hda2 and hda1 are LVs too...
>I just faked partition map entries for them and I use them only by this
>"partition aliases", so I can boot a system living totally in LVs using
>conventional things like lilo...

erm... just what does this gain you, then? if you resize or move those
LVs, wouldn't you have to manually change the fake partition map
entries, sort of negating the entire point of using LVM...?

--
   PGP/GnuPG key (ID 1024D/BFE0D6D0) available from keyservers everywhere

       "Everything I am today, I owe to people whom it is now too late
                                   to punish."

[-- Attachment #2: Type: application/pgp-signature, Size: 232 bytes --]

Re: [linux-lvm] startup stuff an dnew question :-)

[Ulf Bartelt]

zoo1@corecomm.net wrote:
> >But the tricky part is: hda2 and hda1 are LVs too...
> >I just faked partition map entries for them and I use them only by this
> >"partition aliases", so I can boot a system living totally in LVs using
> >conventional things like lilo...
> 
> erm... just what does this gain you, then? if you resize or move those
> LVs, wouldn't you have to manually change the fake partition map
> entries, sort of negating the entire point of using LVM...?

...I do not want to use an initrd to switch on some service I cannot
switch off properly because no exitrd exists. But that's
philosophical...

...but for now I never needed to resize /boot or /, only the other
LVs...

...and admittedly I never spent a thought on relations between partition
aliases and snapshots... :-(

Re: [linux-lvm] startup stuff an dnew question :-)

[Andreas Dilger]

Ulf Bartelt writes:
> > >I just faked partition map entries for them and I use them only by this
> > >"partition aliases", so I can boot a system living totally in LVs using
> > >conventional things like lilo...
> > 
> > erm... just what does this gain you, then? if you resize or move those
> > LVs, wouldn't you have to manually change the fake partition map
> > entries, sort of negating the entire point of using LVM...?
> 
> ...but for now I never needed to resize /boot or /, only the other
> LVs...

With the recent changes that went into LVM-0.9.1-beta3, and some patches
to LILO, it _should_ be possible to use LILO on a /boot LV.  Unfortunately,
I was distracted from completing the testing, but the LVM fixes are there.

Cheers, Andreas
-- 
Andreas Dilger  \ "If a man ate a pound of pasta and a pound of antipasto,
                 \  would they cancel out, leaving him still hungry?"
http://www-mddsp.enel.ucalgary.ca/People/adilger/               -- Dogbert

Re: [linux-lvm] startup stuff an dnew question :-)

[Christoph Hellwig]

On Tue, Feb 06, 2001 at 08:44:58AM +0100, Ulf Bartelt wrote:
> ...but for now I never needed to resize /boot or /, only the other
> LVs...

With my grub patch (ftp.openlinux.org:/pub/people/hch/lvm) you should
be able to boot a kernel on a LV.

I havn't looked at it for about half a year, so it might not apply against
grub-current anymore.

For / there is initrd, my autoscan code is pretty dead now, sorry.

	Christoph

-- 
Of course it doesn't work. We've performed a software upgrade.

Re: [linux-lvm] startup stuff

[Timo Aaltonen]

On Fri, 2 Feb 2001, JAmes wrote:

> 
> Hello
> 
> I am using debian Linux, and have farely successfully installed LVM. I
> have just to do the lvcreate -ay at startup. I assume that thi smust go in
> 
> /etc/rc2.d 
> 
> but using what S??
> 
> Any help extremely apreciated...

You could use the deb's made by Tom Lees. You can find them here:

http://www.lpsg.demon.co.uk/files/debian

Depending which version you are using you have to install either lvm10
(0.9, maybe 0.9.1betas?), lvm6 (0.8final) or lvm5 (0.8i) _and_ lvm-common.
I've been using them for more than a month now without any problems.

They contain the init-script, so you don't need to make your own.

_______________/Timo Aaltonen <http://www.hut.fi/~tjaalton>
Work: Oy MyPortal International Ltd  GSM +358-40-5549 618

Re: [linux-lvm] startup stuff

[JAmes]

Thanks for this :-)
  
> > H> > Any help extremely apreciated...
> 
> You could use the deb's made by Tom Lees. You can find them here:
> 
> http://www.lpsg.demon.co.uk/files/debian
> 
> Depending which version you are using you have to install either lvm10
> (0.9, maybe 0.9.1betas?), lvm6 (0.8final) or lvm5 (0.8i) _and_ lvm-common.
> I've been using them for more than a month now without any problems.
> 
> They contain the init-script, so you don't need to make your own.
> 
> _______________/Timo Aaltonen <http://www.hut.fi/~tjaalton>
> Work: Oy MyPortal International Ltd  GSM +358-40-5549 618
> 
> 
> _______________________________________________
> linux-lvm mailing list
> linux-lvm@sistina.com
> http://lists.sistina.com/mailman/listinfo/linux-lvm
>