You can change some of the flags in the HP Chromebook 14 seabios using the gbb utility. This enables default boot in legacy mode and a minimal time at the chromeos white screen.
See the links here:
http://johnlewis.ie/how-to-make-seab...our-acer-c720/
and end of page here:
https://wiki.archlinux.org/index.php/HP_Chromebook_14
Also someone complains about a long boot time and usb something something error messages. A little googling suggests this is a misleading message and can be fixed by addressing the suspend (UEFI) issue like so: ( from http://realityequation.net/installin...-chromebook-14 among other places). Sorry, I lost my main sources for this error rebooting trying to address the issue.
- Edit /etc/default/grub, comment out the line withGRUB_CMDLINE_LINUX_DEFAULT and add this instead:
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash add_efi_memmap boot=local noresume noswap i915.modeset=1 tpm_tis.force=1 tpm_tis.interrupts=0 nmi_watchdog=panic,lapic"
Hope this helps. I know your post is a little old at this point.
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