Date: Sun, 25 Jun 2017 21:34:13 -0500 From: Justin Hibbits <jhibbits@freebsd.org> To: ppc@freebsd.org Cc: FreeBSD Release Engineering Team <re@freebsd.org> Subject: r320347: ABI breakage for 32-bit powerpc, introduction of 64-bit time_t Message-ID: <CAHSQbTDe_ex_vJ3JTePnVfafEUegE0s3J3DQtxUfyu5j3Kmc-w@mail.gmail.com>
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Hi all, Thanks to the testing by Andreas Tobler, and others, 32-bit powerpc targets (powerpc.powerpc, powerpc.powerpcspe) now use a 64-bit time_t. This is a significant ABI breakage, and as such should be handled with care. For one, live in-place updates cannot be done. You must install via an alternate root. Additionally, all ports, and any local binaries, must be recompiled with the new ABI, or bad/strange/bizarre things could happen. The safest route is to perform a clean install. Second to that, the following procedure could be used to perform an upgrade: * Boot to an alternate medium (CD, DVD, memstick, temporary image on swap, or another hard drive, etc) * Mount your runtime filesystems to, e.g., /mnt * pkg remove -a on your runtime system (in chroot) * Install to /mnt * Rebuild all ports * Reboot to new y2038-safe system - Justin
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