[pca] Duplicate patches

[Martin Paul]

Hi,

> I've run into something rather frustrating. Namely that the finish
> scripts for patching expect patches to be an extracted patch cluster
> - i.e. a directory containing a patch_order file and subdirectories
> for each patch; while PCA looks for individual zip archives for each
> patch.

Actually PCA will use extracted patches as well, just try to point it at 
the appropriate "patchdir".

A possible problem is that when some patch is missing from "patchdir", 
PCA will try to download it and store it there, requiring write 
permissions. And of course it will store ZIP files there, not extracted 
patch directories. If you ensure that all patches already exist in 
"patchdir" before running PCA, you should be fine.

As you found out in the meantime, using PCA itself in the finish script 
might be the best solution. For that to work, I recommend using a local 
caching PCA proxy which will do the patch downloads. One thing to take 
care of is the fact, that the mini-root which is booted via the network 
during Jumpstart does not contain a wget binary (at least when I looked 
the last time). Here I store a copy of PCA and wget binaries for 
sparc/i386 in the jumpstart directory and use a command like that in the 
finish script:

   ./pca \
   --root /a \
   --wget ./wget-`uname -p` \
   --xrefurl=http://1.2.3.4/pca/pca-proxy.cgi \
   --patchurl=http://1.2.3.4/pca/pca-proxy.cgi \
   --xrefdir=/tmp \
   --patchdir=/tmp \
   --nobackup=all \
   --install \
     missing

Hope that helps,

Martin.