Date: Fri, 17 Jul 2009 12:27:32 +0200 From: Ivan Voras <ivoras@freebsd.org> To: freebsd-questions@freebsd.org Subject: Re: 8.0 and GPT_PART and core-dump Message-ID: <h3pjmq$4fh$1@ger.gmane.org> In-Reply-To: <20090717115859.465bdb38@baby-jane.lamaiziere.net> References: <20090716221732.3017dc1a@baby-jane.lamaiziere.net> <3a142e750907170030n1915764bve0478039497a6e89@mail.gmail.com> <20090717115859.465bdb38@baby-jane.lamaiziere.net>
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Patrick Lamaiziere wrote: > Le Fri, 17 Jul 2009 09:30:25 +0200, > "Paul B. Mahol" <onemda@gmail.com> a écrit : > >>> With 8.0, FreeBSD see my disk with several parts instead slices. >>> That works fine but the kernel is not able to core dump to my swap >>> (ad4p3a) and I can't break into the debuger (laptop with an usb >>> keyboard). >> For first one it looks like table is broken. > > It's a Macbook Pro partitionned with the Apple bootcamp utility. > I'm not sure if I shall fill a PR for this, it looks to be a hack just > for running MS-Windows on a Mac. But that worked fine with 7.X > >> The last one is unrelated to gpart > > I know, I meant I really need to be able to dump a panic. > > Any hint is welcome. When the kernel attempts a dump on the device, do you perhaps see a message like "partition type unsupported?". One thing that's changed in GPART is that it will not allow dumps on partitions marked like they contain a file system. Specifically, if you're using GPT, the dump partition's type needs to be either gpt_uuid_freebsd_swap or gpt_uuid_linux_swap. For FreeBSD swap, it's 516e7cb5‐6ecf‐11d6‐8ff8‐00022d09712b.
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