Date: Sat, 20 Apr 2013 23:33:52 +0000 (UTC) From: Warner Losh <imp@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r249714 - head Message-ID: <201304202333.r3KNXqSN012497@svn.freebsd.org>
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Author: imp Date: Sat Apr 20 23:33:51 2013 New Revision: 249714 URL: http://svnweb.freebsd.org/changeset/base/249714 Log: Add more details about updating across the clang divide. Add hints about having a root shell around on live updates. Couple of additional nits. Modified: head/UPDATING Modified: head/UPDATING ============================================================================== --- head/UPDATING Sat Apr 20 22:46:31 2013 (r249713) +++ head/UPDATING Sat Apr 20 23:33:51 2013 (r249714) @@ -12,9 +12,9 @@ Items affecting the ports and packages s /usr/ports/UPDATING. Please read that file before running portupgrade. NOTE: FreeBSD has switched from gcc to clang. If you have trouble bootstrapping -from older versions of FreeBSD, try WITHOUT_CLANG and WITHOUT_CLANG_IS_CC to -bootstrap to tip of head, and then rebuild without those options. The bootstrap -process from older version of current is a bit fragile. +from older versions of FreeBSD, try WITHOUT_CLANG to bootstrap to tip of +head, and then rebuild without this option. The bootstrap process from +older version of current is a bit fragile. NOTE TO PEOPLE WHO THINK THAT FreeBSD 10.x IS SLOW: FreeBSD 10.x has many debugging features turned on, in both the kernel @@ -127,7 +127,10 @@ NOTE TO PEOPLE WHO THINK THAT FreeBSD 10 This means that the world and kernel will be compiled with clang and that clang will be installed as /usr/bin/cc, /usr/bin/c++, and /usr/bin/cpp. To disable this behavior and revert to building - with gcc, compile with WITHOUT_CLANG_IS_CC. + with gcc, compile with WITHOUT_CLANG_IS_CC. Really old versions + of current may need to bootstrap WITHOUT_CLANG first if the clang + build fails (its compatibility window doesn't extend to the 9 stable + branch point). 20121102: The IPFIREWALL_FORWARD kernel option has been removed. Its @@ -1609,6 +1612,11 @@ COMMON ITEMS: path, and has the highest probability of being successful. Please try this approach before reporting problems with a major version upgrade. + When upgrading a life system, having a root shell around before + installing anything can help undo problems. Not having a root shell + around can lead to problems if pam has changed too much from your + starting point to allow continued authentication after the upgrade. + ZFS notes --------- When upgrading the boot ZFS pool to a new version, always follow @@ -1674,7 +1682,6 @@ COMMON ITEMS: make delete-old [6] <reboot> - To cross-install current onto a separate partition -------------------------------------------------- # In this approach we use a separate partition to hold
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