Re: Dracut and root filesystem UUIDs

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On 13.01.2012 12:55, Alastair Scobie wrote:
> Apologies if this is the incorrect mailing list to discuss this issue..
> 
> Does anyone know if there is a way to configure dracut such that
> it will not attempt to mount USB mass-storage devices at boot time,
> but will still allow mounting of such devices once a system (in our
> case ScientifcLinux6) is fully booted?
> 
> Why do we want to do this? We run several large teaching labs running
> SL6 desktops. We mount filesystems by UUID. We are concerned that our
> students could install a USB memory stick, at boot time, with a
> filesystem with the same UUID as the "official" root filesystem so
> fooling dracut into mounting a trojan filesystem.
> 
> Thanks, in advance, for any ideas..
> 
> Alastair Scobie
> 
> 

specifying "root=UUID=<uuid> rd.shell=0" will do exactly what you want. Then you
also want to secure grub (or any other bootloader) with a password.
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