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Re: [lvm-devel][PATCH] Udev integration: udev rules 2/3



On 04/15/2009 08:12 PM, Alasdair G Kergon wrote:
> On Wed, Apr 08, 2009 at 02:35:35PM +0200, Peter Rajnoha wrote:
>> # udev rules for LVM 
>> # This will create LVM symlinks in /dev directory.
>  
> Again, describe in more detail what the script is doing.
> Needs (C) notices too.

ok, I'll add that...

>> SUBSYSTEM!="block", GOTO="lvm_end"
>> KERNEL!="dm-[0-9]*", GOTO="lvm_end"
>> ACTION!="change|remove", GOTO="lvm_end"
>>
>> ACTION=="change", IMPORT{PROGRAM}="/sbin/dmsetup info -j %M -m %m -c --nameprefixes --noheadings --rows -o name,uuid,subsystem,vg_name,lv_name,lv_layer"
> 
> If we already have the name (e.g. from sysfs), I think we talked about adding
> a 'split up this name' command to dmsetup which does not perform any ioctls.
> 
>> ENV{DM_UUID}!="LVM-?*", GOTO="lvm_end"
> 
> Seems to be some repetition here.  Does udev support including files inline
> within other files?

Unfortunately not (or I haven't found it documented). The only thing we can do
about including files is IMPORT{FILE} rule, but this is restricted to KEY=VALUE
pairs only...

Peter


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