* [linux-lvm] 2.4 LVM1 devfs -> 2.6.0 LVM2 udev
@ 2003-12-19 6:34 Xavier Brouckaert
2003-12-19 7:26 ` Patrick Caulfield
0 siblings, 1 reply; 6+ messages in thread
From: Xavier Brouckaert @ 2003-12-19 6:34 UTC (permalink / raw)
To: linux-lvm
Hi,
As the 2.6.0 is out, it's time for me to see if I can switch to it.
What is the procedure and the things to know to switch from a 2.4 LVM1
devfs to a 2.6 LVM2 udev ? I'm using a debian/unstable. I've seen that
there was a package lvm2 (2.00.08-3) but the comment contains at the end
"requires Linux kernel 2.4.". Does this mean that this package really
cannot handle 2.6 kernels ?
I've also seen that devfs has been obsoleted by udev. However, I didn't
find a udev package for sid nor a kernel option for it (but I've read
that it is only in userspace). The udev FAQ
(http://www.kernel.org/pub/linux/utils/kernel/hotplug/udev-FAQ) does not
mention if I need to install hotplug to have udev working.
Do I have to change something in /etc/lvmtab.d and /etc/lvmconf ?
It seems that a thing called "device-mapper" is needed, but I couldn't
find it in the kernel. Is it CONFIG_DM_IOCTL_V4 ? The "DM" substring
makes me think it's that but the comment in "make menuconfig" doesn't
say that it's for LVM nor that it's a device mapper.
Thanks !
Xavier
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [linux-lvm] 2.4 LVM1 devfs -> 2.6.0 LVM2 udev
2003-12-19 6:34 [linux-lvm] 2.4 LVM1 devfs -> 2.6.0 LVM2 udev Xavier Brouckaert
@ 2003-12-19 7:26 ` Patrick Caulfield
2003-12-20 4:11 ` [linux-lvm] 2.4 LVM1 devfs -> 2.6.0 LVM2 devfs Francis SOUYRI
0 siblings, 1 reply; 6+ messages in thread
From: Patrick Caulfield @ 2003-12-19 7:26 UTC (permalink / raw)
To: linux-lvm
On Fri, Dec 19, 2003 at 01:32:44PM +0100, Xavier Brouckaert wrote:
> Hi,
>
> As the 2.6.0 is out, it's time for me to see if I can switch to it.
> What is the procedure and the things to know to switch from a 2.4 LVM1
> devfs to a 2.6 LVM2 udev ? I'm using a debian/unstable. I've seen that
> there was a package lvm2 (2.00.08-3) but the comment contains at the end
> "requires Linux kernel 2.4.". Does this mean that this package really
> cannot handle 2.6 kernels ?
No, that lvm2/devmapper packages handle 2.6 perfectly well. If you've got an
LVM1 setup on your Debian box all you should need to do to switch to LVM2 and
2.6.0 is install the lvm2 packages and reboot into the new kernel.
> I've also seen that devfs has been obsoleted by udev. However, I didn't
> find a udev package for sid nor a kernel option for it (but I've read
> that it is only in userspace). The udev FAQ
> (http://www.kernel.org/pub/linux/utils/kernel/hotplug/udev-FAQ) does not
> mention if I need to install hotplug to have udev working.
I don't know about udev or hotplug. They are not required for LVM2/devmapper
operation though.
> Do I have to change something in /etc/lvmtab.d and /etc/lvmconf ?
No. lvm-common will detect whether you have device-mapper or LVM1 in the kernel
and use the appropriate LVM tools.
> It seems that a thing called "device-mapper" is needed, but I couldn't
> find it in the kernel. Is it CONFIG_DM_IOCTL_V4 ? The "DM" substring
> makes me think it's that but the comment in "make menuconfig" doesn't
> say that it's for LVM nor that it's a device mapper.
Yes, you must compile in IOCTL_V4 support for device-mapper in 2.6.0. (actually
I think that may have been fixed now but the old "V1" ioctls are deprecated).
CONFIG_BLK_DEV_DM is the device-mapper string but if you don't select that you
won't even see the option for IOCTL_V4 !
--
patrick
^ permalink raw reply [flat|nested] 6+ messages in thread
* [linux-lvm] 2.4 LVM1 devfs -> 2.6.0 LVM2 devfs
2003-12-19 7:26 ` Patrick Caulfield
@ 2003-12-20 4:11 ` Francis SOUYRI
2003-12-20 9:58 ` Patrick Caulfield
0 siblings, 1 reply; 6+ messages in thread
From: Francis SOUYRI @ 2003-12-20 4:11 UTC (permalink / raw)
To: linux-lvm
Hi Patrick,
I have a full ("/" is also a logical volume) LVM1 2.4 devfs system, and
I want to test the LVM2 2.6 devfs kernel.
I want to have the possibility to boot the 2.4 or the 2.6 kernel with
the same filesystems.
You say "lvm-common will detect whether you have device-mapper or LVM1
in the kernel and use the appropriate LVM tools". What is lvm-common ?
And if lvm-common can use the appropriate LVM tools how to install the
LVM1 and LVM2 tools in the same filesystem ("same" binaries)
Best regards.
Francis
Patrick Caulfield wrote:
>On Fri, Dec 19, 2003 at 01:32:44PM +0100, Xavier Brouckaert wrote:
>
>
>>Hi,
>>
>>As the 2.6.0 is out, it's time for me to see if I can switch to it.
>>What is the procedure and the things to know to switch from a 2.4 LVM1
>>devfs to a 2.6 LVM2 udev ? I'm using a debian/unstable. I've seen that
>>there was a package lvm2 (2.00.08-3) but the comment contains at the end
>>"requires Linux kernel 2.4.". Does this mean that this package really
>>cannot handle 2.6 kernels ?
>>
>>
>
>No, that lvm2/devmapper packages handle 2.6 perfectly well. If you've got an
>LVM1 setup on your Debian box all you should need to do to switch to LVM2 and
>2.6.0 is install the lvm2 packages and reboot into the new kernel.
>
>
>
>
>>I've also seen that devfs has been obsoleted by udev. However, I didn't
>>find a udev package for sid nor a kernel option for it (but I've read
>>that it is only in userspace). The udev FAQ
>>(http://www.kernel.org/pub/linux/utils/kernel/hotplug/udev-FAQ) does not
>>mention if I need to install hotplug to have udev working.
>>
>>
>
>I don't know about udev or hotplug. They are not required for LVM2/devmapper
>operation though.
>
>
>
>>Do I have to change something in /etc/lvmtab.d and /etc/lvmconf ?
>>
>>
>
>No. lvm-common will detect whether you have device-mapper or LVM1 in the kernel
>and use the appropriate LVM tools.
>
>
>
>>It seems that a thing called "device-mapper" is needed, but I couldn't
>>find it in the kernel. Is it CONFIG_DM_IOCTL_V4 ? The "DM" substring
>>makes me think it's that but the comment in "make menuconfig" doesn't
>>say that it's for LVM nor that it's a device mapper.
>>
>>
>
>Yes, you must compile in IOCTL_V4 support for device-mapper in 2.6.0. (actually
>I think that may have been fixed now but the old "V1" ioctls are deprecated).
>CONFIG_BLK_DEV_DM is the device-mapper string but if you don't select that you
>won't even see the option for IOCTL_V4 !
>
>
>
>
^ permalink raw reply [flat|nested] 6+ messages in thread* Re: [linux-lvm] 2.4 LVM1 devfs -> 2.6.0 LVM2 devfs
2003-12-20 4:11 ` [linux-lvm] 2.4 LVM1 devfs -> 2.6.0 LVM2 devfs Francis SOUYRI
@ 2003-12-20 9:58 ` Patrick Caulfield
2003-12-22 0:20 ` Francis SOUYRI
0 siblings, 1 reply; 6+ messages in thread
From: Patrick Caulfield @ 2003-12-20 9:58 UTC (permalink / raw)
To: linux-lvm
On Sat, Dec 20, 2003 at 11:10:42AM +0100, Francis SOUYRI wrote:
> Hi Patrick,
>
> I have a full ("/" is also a logical volume) LVM1 2.4 devfs system, and
> I want to test the LVM2 2.6 devfs kernel.
>
> I want to have the possibility to boot the 2.4 or the 2.6 kernel with
> the same filesystems.
>
> You say "lvm-common will detect whether you have device-mapper or LVM1
> in the kernel and use the appropriate LVM tools". What is lvm-common ?
> And if lvm-common can use the appropriate LVM tools how to install the
> LVM1 and LVM2 tools in the same filesystem ("same" binaries)
lvm-common is the Debian package that switches between LVM versions on the
same system. If you install the "lvm10" or "lvm2" packages then this will get
installed by default.
The Debian LVM binaries get installded lib /lib/lvm-<version> and lvm-common
decides at run-tim which one is the most appropriate to use.
Of course you must use the Debian packages to get this, if you build your own
tools from source then you're on your own :) (building your own kernels is fine
though)
--
patrick
^ permalink raw reply [flat|nested] 6+ messages in thread* Re: [linux-lvm] 2.4 LVM1 devfs -> 2.6.0 LVM2 devfs
2003-12-20 9:58 ` Patrick Caulfield
@ 2003-12-22 0:20 ` Francis SOUYRI
2003-12-22 2:09 ` Patrick Caulfield
0 siblings, 1 reply; 6+ messages in thread
From: Francis SOUYRI @ 2003-12-22 0:20 UTC (permalink / raw)
To: linux-lvm
Hi Patrick
Thank yo, I'll try to implement the same installation on my system (no
Debian).
Best regards.
Francis
Patrick Caulfield wrote:
>On Sat, Dec 20, 2003 at 11:10:42AM +0100, Francis SOUYRI wrote:
>
>
>>Hi Patrick,
>>
>>I have a full ("/" is also a logical volume) LVM1 2.4 devfs system, and
>>I want to test the LVM2 2.6 devfs kernel.
>>
>>I want to have the possibility to boot the 2.4 or the 2.6 kernel with
>>the same filesystems.
>>
>>You say "lvm-common will detect whether you have device-mapper or LVM1
>>in the kernel and use the appropriate LVM tools". What is lvm-common ?
>>And if lvm-common can use the appropriate LVM tools how to install the
>>LVM1 and LVM2 tools in the same filesystem ("same" binaries)
>>
>>
>
>lvm-common is the Debian package that switches between LVM versions on the
>same system. If you install the "lvm10" or "lvm2" packages then this will get
>installed by default.
>
>The Debian LVM binaries get installded lib /lib/lvm-<version> and lvm-common
>decides at run-tim which one is the most appropriate to use.
>
>Of course you must use the Debian packages to get this, if you build your own
>tools from source then you're on your own :) (building your own kernels is fine
>though)
>
>
^ permalink raw reply [flat|nested] 6+ messages in thread* Re: [linux-lvm] 2.4 LVM1 devfs -> 2.6.0 LVM2 devfs
2003-12-22 0:20 ` Francis SOUYRI
@ 2003-12-22 2:09 ` Patrick Caulfield
0 siblings, 0 replies; 6+ messages in thread
From: Patrick Caulfield @ 2003-12-22 2:09 UTC (permalink / raw)
To: linux-lvm
On Mon, Dec 22, 2003 at 07:19:19AM +0100, Francis SOUYRI wrote:
> Hi Patrick
>
> Thank yo, I'll try to implement the same installation on my system (no
> Debian).
Ah, sorry I thought I saw a mention of Debian on one of your emails. Feel free
to download the source for the Debian lvm-common package and build it for your
system - it could take a lot of the effort out of determining which LVM is
available for you. !
--
patrick
^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2003-12-22 2:09 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2003-12-19 6:34 [linux-lvm] 2.4 LVM1 devfs -> 2.6.0 LVM2 udev Xavier Brouckaert
2003-12-19 7:26 ` Patrick Caulfield
2003-12-20 4:11 ` [linux-lvm] 2.4 LVM1 devfs -> 2.6.0 LVM2 devfs Francis SOUYRI
2003-12-20 9:58 ` Patrick Caulfield
2003-12-22 0:20 ` Francis SOUYRI
2003-12-22 2:09 ` Patrick Caulfield
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