clarification: images vs upgrade

arne anka openmoko at
Sun Jul 13 00:18:04 CEST 2008

while browsing the device-owners list, my uncertainity regarding the  
images only grew.
there's uImage and there's root-image. how are the to describe in terms of  
desktop distributions (uImage writes bootloader, root-image copies an  
image to harddisk like knoppix does?)?
and how does doing opkg update && opkg upgrade differ from flashing those  

being a longterm debian/sid user i grew accustomed to do aptitude update  
&& aptitude dist-upgrade almost every day and compile a new kernel every  
now and then ...

thanks in advance

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