[Mageia-dev] GRUB can't see HD from chroot unless parent /dev is bind-mounted in chroot ?

Thu Jan 17 10:45:27 CET 2013

'Twas brillig, and Bruno Cornec at 16/01/13 23:41 did gyre and gimble:
+> Colin Guthrie said on Wed, Jan 16, 2013 at 09:17:46PM +0000:
+> 
+>>> C) of course, udev is not inside systemd, so it appears the new way is now to 
+>>> somehow spawn a systemd process inside the chroot (maybe systemd-nspawn?)
+>>
+>> Personally I think that's overkill.
+> 
+> +1 and systemd works badly with chrooted prcesses itself as I
+> experienced recently with squid :-( I'd like to have more time to
+> experiment with LXC, maybe a easier solution for systemd usage (but not
+> for what you tried to achieve).
+
+Perhaps squid is not configured right, but systemd works very well with
+chrooted processes - it's one of the core features to make chrooting
+easier and prevent the need for boiler plate setup in numerous packages.
+That said some changes may be required to make best use of this.
+
+See part 6 in the (currently) 20 part series of blog posts regarding
+systemd for administrators:
+
+http://0pointer.de/blog/projects/changing-roots.html
+
+(for full list see here:
+http://www.freedesktop.org/wiki/Software/systemd and look for "The
+systemd for Administrators Blog Series")
+
+
+Depending on the need for access to socket paths (e.g. for unix sockets)
+then the /run on tmpfs can cause some problems (e.g. with cyrus-sasl
+auth and chrooted postfix - previously hardlinks were used to allow the
+chroot and host to see the "same" socket, but this was hacky at best as
+there was no guarantee the chroot and host were on the same filesystem -
+now they are guaranteed not to be on the same fs).
+
+
+If you would like to detail the problems with squid and point at a
+detailed bug report I can take a look or at least advise on the best
+steps to take to get a really solid system.
+
+Col
+
+
+
+-- 
+
+Colin Guthrie
+colin(at)mageia.org
+http://colin.guthr.ie/
+
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+  Tribalogic Limited http://www.tribalogic.net/
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+