Old box:

Ubuntu Hardy, LVM, IDS 7.3 (I said old)
Script in /etc/init.d to set ownership & permissions -
informix,informix,660 - before starting IDS. No problem.

New box:
Debian Squeeze, LVM, IDS 11.7
Same script. Check device permissions set as required. Try to
initialise new root chunk. IDS complains that the owner & root should
be informix. Check again & it's now set to root.

My suspicion is that udev is butting in so I removed the script & tried
to set up udev permissions as per example at
http://sourceware.org/cgi-bin/cvsweb...n&cvsroot=lvm2
which in turn is as advised at
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=606124

Result: everything's still owned by root.

Has anyone got this combination working and if so how?


--
Ian

The Hotmail address is my spam-bin. Real mail address is iang
at austonley org uk

Ian Goddard wrote:
The example at sourceware gives a a set of sample lines form LVM
devices. The example for a named logical volume is

ENV{DM_VG_NAME}=="VolGroup00", ENV{DM_LV_NAME}=="LogVol00",
OWNER:="root", GROUP:="root", MODE:="660"

In my case the volume group name is vg and the entry in /dev/mapper is
of the form vg-lv_inf_root so I put these strings into the example in
place of the VolGroup00 and LogVol00 respectively - with informix as
owner & group of course:

ENV{DM_VG_NAME}=="vg", ENV{DM_LV_NAME}=="vg-lv_inf_root", OWNER:="root",
GROUP:="root", MODE:="660"

This is wrong. The actual volume name, as defined to lvm is
lv_informix_root without the volume group name prepended and this is
what should be used in the permissions file:

ENV{DM_VG_NAME}=="vg", ENV{DM_LV_NAME}=="lv_inf_root", OWNER:="root",
GROUP:="root", MODE:="660"

This and similar lines for as many chunk devices as are required go into
a file /etc/udev/rules.d/99-informix-permissions

Once these are in place the ownership and permissions are set correctly
at boot time and remain set when the instance is initialised. I haven't
set the databases up yet but so far, so good.

There is, BTW, an alternative line that works, bases on the sample for a
plain dynamically mapped device:

ENV{DM_NAME}=="vg-lv_inf_root", OWNER:="root", GROUP:="root", MODE:="660"

This does use the full name as found in /dev/mapper. You pays your
money and you takes your choice.

--
Ian

The Hotmail address is my spam-bin. Real mail address is iang
at austonley org uk