Speeding up live cd boot through optimizing file layout

Henrik Nilsen Omma henrik at ubuntu.com
Mon Jun 12 09:41:58 BST 2006


Daniel Koć wrote:
> I've noticed something strange with original Ubuntu Dapper LiveCD: 
> when the system is up and running, I can't get the sound working. It 
> says the sound deamon is dead.
>
> *But* when I did plain remastering (with UCK), which only added all 
> polish translations, removed all the other translations and sorted the 
> files on CD by the first access, the sound on the remastered CD 
> automagically showed up! I think this is thanks to the sorting; the 
> bug is probably caused by missing the right time frame to access some 
> files. If the bug has been seen also by other people, then we have a 
> proof that even just simple CD mastering is error prone. 

Yes this causes problems for the accessibility tools as well. Some 
people report that gnopernicus does not speak after boot (with an F5 
option) while for others it's fine. Logging out and back in fixes it. It 
seems to me to be a timing issue here as well, and the variability comes 
from different hardware.

- Henrik



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