Tuesday, 29 April 2014

Re: Upgrade iso image

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On 4/29/2014 4:26 AM, Timo Jyrinki wrote:
> I'm not sure about the details, but I did notice that there's a new
> option "upgrade Ubuntu" when booting from 14.04 LTS image on a
> machine that has 12.04 LTS. Maybe that function fills in the void?

That is a different process. Rather than upgrade packages, letting
their upgrade scripts handle any needed migrations, it simply deletes
the existing install, and installs the new release. I don't much care
for that idea. It also only applies to desktop installs. From the
bug reports I've seen it also seems to be somewhat unreliable.

> Secondly, the new official image is already "DVD" image size wise,
> since it's around 1GB while the old DVD image was 1.6GB (checked
> 12.04 LTS). There is some size delta, but was it so that the old
> DVD image also duplicated content because there was both the live
> squashfs image and deb pool directory separately?

Yes, there was some duplication on the old image.

> There'd be more use for the "old old" (until 11.04) DVD images that
> were 4GB+, ie something that contains more packages, but the DVD
> image of late was quite close to the new "CD" image.

Possibly, but I think that most of the extra 3 GB was rarely used. It
seems like ~1 GB should be enough to cover 90% of the packages most
people need to upgrade. Adding more gets quickly diminishing returns
in terms of the number of packages that a given install needs to
upgrade, while adding more unneeded download for others.


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