On 13.01.2012 15:06, Harald Hoyer wrote: > 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. Ah, sorry, only read half of it. You might want to blacklist the USB storage kernel driver then. "rd.driver.blacklist=usb-storage" or choose one of the by-path symlinks with e.g. "root=/dev/disk/by-path/pci-0000:00:1f.2-scsi-0:0:0:0-part1" -- To unsubscribe from this list: send the line "unsubscribe initramfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
