web: Update "local package assembly" a bit

This commit is contained in:
Colin Walters 2014-01-24 18:27:35 -05:00
parent 514b73c944
commit f22bb4dbb2
2 changed files with 14 additions and 5 deletions

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</p> </p>
<p> <p>
The problem is making this sort of thing efficient and scalable; The problem is making this sort of thing efficient and scalable;
it would require careful integration of the local OSTree repository it would require careful integration of the local OSTree
and the package manager caching to operate at a speed comparable to repository and the package manager caching to operate at a speed
traditional package management. comparable to traditional package management.</p>
<p>There are two primary issues. First, OSTree mandates that the
running tree be immutable, and requires construction of a new
tree. This is just a deep mismatch with how package managers are
built. Second, current package managers are totally unaware of
the existence of the OSTree repository at /ostree/repo which holds
binaries. A naive implementation would just redownload the packages,
which would be quite slow.
</p>
</p> </p>
<h3>Development area: Live updates</h3> <h3>Development area: Live updates</h3>
<p> <p>

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<pre> <pre>
ostree admin upgrade ostree admin upgrade
</pre> </pre>
<p>Although <tt>yum</tt> is installed, it will operate in read-only mode. Do <p>Although <tt>yum</tt> is installed, it will operate in read-only
not attempt to use it at the moment. See </p> mode. Do not attempt to use it at the moment. See the section
on the homepage "Development area: Local package assembly".</p>
<p>But with OSTree, it's possible to atomically transition between <p>But with OSTree, it's possible to atomically transition between
different complete bootable filesystem trees. Let's now try the different complete bootable filesystem trees. Let's now try the