Daily builds are no longer livecd images

[Mikus Grinbergs]

>> But in the case of booting from an USB stick, I believe the system does
>> *not* write the contents of changed memory pages back out to the USB stick.
>> When I reboot from that USB stick (particularly if I've powered-down the
>> system in the meantime), why would the changes still be there ??
> 
> Because USB sticks are not CDs. We use a persistent overlay on live
> USBs so that you can store your changes.


I am not seeing what you describe.
[The only machines I have to experiment on are XO-1s.]

Since I do not see the "changes still there" that you keep talking 
about, all I can figure out is that we are talking past each other.


--------

If I look at the contents of an USB stick (df, ls -la) before using 
that USB stick to boot from;  then boot the system and make changes; 
  then shutdown -- when I again look at the contents of that USB 
stick, I do not notice those contents having been changed.

If in fact the content of that USB stick has not changed, where does 
the "persistent overlay on live USBs" (that you describe) get kept ?


Thanks, mikus


p.s.  I just did an experiment. I made a copy of the USB stick I
       created with 'livecd-iso-to-disk' from rawhide-xo
       20090525.iso.  I then booted an XO with the original USB
       stick, and made changes to / and to /etc (in memory) once
       Gnome was running.  I then shut down the XO, and compared the
       original USB stick to the earlier copy.  They were
       byte-for-byte identical.  To me, that says that *nothing* got
       written to the original USB stick (used to boot from) when I
       made those changes to the booted system.