Re: udevstart v udevtrigger

[Greg KH <greg@kroah.com>]

On Thu, Jul 13, 2006 at 03:06:23PM -0700, Rich Turner wrote:
> we use udev when we perform a bare-metal restore of a system from a backup (if 
> the system that we created boot media from has it available). we use udev to 
> create device nodes in our boot media environment only. once the system is 
> rebuilt then the system's original udev support is used.
> 
> our only support requirement is that the system is running kernel 2.4 or 
> later. granted udev requires 2.6 so those systems are the only ones we are 
> discussing.
> 
> in short:
> we create the system installation boot media and include the following 
> udev-related files on the media:
> udev
> udevstart
> udevd (only if udev is not available and there is udevstart)
> /etc/udev/*
> 
> we use udev by running udevstart if we have udev command. or we start udevd if 
> we do not have the udev command and then run udevstart. this is creating all 
> necessary device nodes.
> 
> i have not tested this yet, but my thoughts are to add udevtrigger to the boot 
> media. then if there is not a udevstart command create a link 
> udevstart->udevtrigger. that way i will not have to make changes everywhere 
> else in the software where i do run udevstart.
> 
> i guess the question is can i treat udevstart and udevtrigger as the same 
> command?
> 
> will udevtrigger provide me with the same results as udevstart?

Yes, it should, it just depends on the kernel version running.

thanks,

greg k-h


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