Re: [Devil-linux-develop] [PATCH] linuxrc

[Tim T. <t....@co...>]

Bruce Smith wrote:

>>>>I made what I think is a few enhancements to the linuxrc script... now 
>>>>this is my 1st attempt at any real script mods, so I may not have it 
>>>>all correct.
>>>>
>>>>First is simple, I have it check floppies for a config 1st, thus 
>>>>allowing someone to temporarily test new configs by overiding one 
>>>>stored on a HD. Probably be good to check other removeable media list 
>>>>USB 1st too but thats trickier. I don't think this raises a security 
>>>>risk, cause if someone can put floppies into your machine they can do 
>>>>a lot worse too.
>>>>
>>>>2nd, if you have multiple possible sources of  the configuration file, 
>>>>if it's not on the first one, it halts the boot to prompt if you want 
>>>>to write a default one to it. This is really bad, because it hangs the 
>>>>system on an unattended reboot. So I tweaked the script to check all 
>>>>media 1st, then if none was found do a 2nd pass to look for blank 
>>>>media. Of course lastly it still checks the CDROM. Is it possible to 
>>>>pass the config source from grub as option, like it works for  
>>>>"root=/dev/hda1"?
>>>>        
>>>>
>>>2nd try with "unified diff" attachment. I couldn't get the cvs diff -run 
>>>to work, sorry.
>>>      
>>>
>>I can't look into it at the moment, I have a full re-compile running.
>>Bruce you got time? Otherwise I'll try to do it tomorrow night.
>>    
>>
>
>I might have time tomorrow.
>
>I haven't looked at the patch yet, but I'm not sure about checking for
>floppy first.  That would check floppy before the USB memory stick.
>I think the USB flash drive should have priority over the floppy. 
>Heiko, what's your opinion on that?
>  
>
I think it needs to check both... my thought was if you have a USB 
config then you are unlikely to leave a floppy in, except to test 
something. Also, I was not sure how to make it check USB vs a SCSI 
drive. Either way I think removable media 1st.. of course since I have 
an IDE CF Card, it get's more convoluted. There probably is no canned 
config which solves every setup, which is why I was asking about passing 
it as a parameter from grub for installs to usb/hd .

>Also, the search order for configs need to match the save-config script.
>It's really confusing if your save goes to a different location than the
>boot is using.  (believe me, I know that first hand! :)   So, if you
>change the boot order, you also need to modify the save-config script.
>
> - BS
>  
>
I agree on the save-config script, that was my next order of business. 
Ideally though, save-config should *know* where the source was, not 
guess. Hot-pluggable media coudl ahve been added since boot, etc. Can't 
we pass it some how from linuxrc?

Tim