[CentOS-devel] Zero day updates upstream

Karanbir Singh mail-lists at karan.org
Fri Mar 16 01:06:20 UTC 2007

John Summerfield wrote:
> I too would like them rolled in. If I userstand anaconda-list properly, 
> it's now possible to include multiple repos in the install tree.

thats the main reason why we are considering so strongly to not roll 
them in, since its possible to enable the updates repo at install time 
and just use the packages from there instead of using the packages in 
the distro media....

> Why not add updates? In the CD images, it could be a separate CD so one 
> could just download (or create) a refreshed CD image. Possibly, updates 
> (U{1,2,3...} could be done this way too.

Too much changes during an Quarterly Update cycle to go down that route 
- eg. by 5.5 you could end up with 12CD's or something like that - and 
the media needs to be rebuilt anyway ( the installer needs to know what 
rpms are available where before it starts doing its dep resolution )

> Also, pls look ar Jigdo (see Debian). It would allow users to
>  Download master templates, and fill it in from
> a. Earlier ISOs
> b. One or more mirrors.
> The final result is a bit-for-bit copy of the original, and jigdo checks 
> the checksum.
> To create U1 ISOs, folk could use jigdo to fetch the template, download 
> (maybe from the local LAN if they've been downloaded wity yum and kept) 
> all changes and create new images without downloading stuff they already 
> have.

doesnt Rsync already achieve much of this functionality ? when you rsync 
over an iso, you really should get only changed bits.

Having said that - if anyone wants to take up the jidgo distribution 
mechanism and work with us through release time doing whatever is 
required - please do feel free to step up and join the effort.

- KB

Karanbir Singh : http://www.karan.org/ : 2522219 at icq

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