Date: Tue, 04 Oct 2016 16:29:09 +0000 From: bugzilla-noreply@freebsd.org To: freebsd-bugs@FreeBSD.org Subject: [Bug 213196] Upgrading Amazon EC2 instance from 10.3 to 11.0 results in hang at boot Message-ID: <bug-213196-8@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D213196 Bug ID: 213196 Summary: Upgrading Amazon EC2 instance from 10.3 to 11.0 results in hang at boot Product: Base System Version: 11.0-RC1 Hardware: Any OS: Any Status: New Severity: Affects Only Me Priority: --- Component: kern Assignee: freebsd-bugs@FreeBSD.org Reporter: allanjude@FreeBSD.org Peter Ankerst=C3=A5l on the -stable mailing list reports a failure to boot = after using freebsd-update to upgrade from 10.3-RELEASE to 11.0-RELEASE https://lists.freebsd.org/pipermail/freebsd-stable/2016-October/085799.html The issue is caused by EC2 hanging on an attempt to read past the end of the disk The issue was introduced in r297629 (6 months ago), but was not caught beca= use most installs are 4k aligned by the installer, and on most hardware, a read past the end of the disk returns and error, which is silently ignored and booting continues normally. For EC2, newer snapshots and images use a newer disk layout that is 4k aligned, so avoided this issue. Only older instances being upgraded to 11.0 encountered the problem. --=20 You are receiving this mail because: You are the assignee for the bug.=
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