| 1 |
Hi Anthony, |
| 2 |
|
| 3 |
On Thu, 18 Jan 2018 06:46:53 -0500 Anthony G. Basile wrote: |
| 4 |
|
| 5 |
>Hi everyone, |
| 6 |
> |
| 7 |
>I'm trying to design an update system for many identical Gentoo |
| 8 |
>systems. |
| 9 |
> Using a binhost is obvious, but there are still problems with this |
| 10 |
>approach. |
| 11 |
> |
| 12 |
>Unless there's some magic I don't know about (and this is why I'm |
| 13 |
>sending this email) each machine still needs to have the portage tree |
| 14 |
>installed locally (1.5 GB) or somehow mounted by a network filesystem |
| 15 |
>(which is not practical if the machines are not on a local network). |
| 16 |
>Furthermore, each machine would have to run emerge locally to do the |
| 17 |
>calculation of what packages need updating. |
| 18 |
> |
| 19 |
>This procedure is redundant because each machine is housing the same |
| 20 |
>data and doing the same dependence-tree calculation. It should be |
| 21 |
>possible to do this calculation on a centralized binhost and simply |
| 22 |
>communicate the update information to the remote machines. They would |
| 23 |
>then only have to download the .tbz2's and install them, keeping a tidy |
| 24 |
>/var/db/pkg. Thus they avoid having to house the portage tree and |
| 25 |
>burning cpu cycles that just calculate redundant information. |
| 26 |
> |
| 27 |
>I'm inspired here by OpenBSD's pkg_add which doesn't require all of |
| 28 |
>ports to be installed, and mender which is a |
| 29 |
> |
| 30 |
>Any ideas? |
| 31 |
> |
| 32 |
|
| 33 |
well, I never did anything like that but regarding the dependency |
| 34 |
calculation... how about something like |
| 35 |
|
| 36 |
emerge -1OKanv $(qlist -CISq) |
| 37 |
|
| 38 |
(--oneshot --nodeps --usepkgonly --ask --noreplace --verbose) |
| 39 |
|
| 40 |
which simply omits dependency calculations, only takes into account |
| 41 |
available binary packages and doesn't replace same versions? |
| 42 |
Of course this requires all installed packages really being available as |
| 43 |
binpkgs. |
| 44 |
Since all the installations are the same, as long as you provide a sane |
| 45 |
set of binpkgs, dependency calculation should not matter anyway. |
| 46 |
The only issue I can think of is that a system might become broken if |
| 47 |
the update gets interrupted before all packages have been updated. |
| 48 |
|
| 49 |
Kind regards |
| 50 |
|
| 51 |
-- |
| 52 |
Lars Wendler |
| 53 |
Gentoo package maintainer |
| 54 |
GPG: 21CC CF02 4586 0A07 ED93 9F68 498F E765 960E 9B39 |
Archives