On 26.02.2011 15:26, Marin Atanasov Nikolov wrote: >> After a reboot I get this right before the FreeBSD bootloader starts: >> >> gptboot: invalid GPT backup header >> >> I suppose this error simply means that gpart can't find it's backup >> header, because gmirror and gpart both are using the last sectors for
>> a provider to write it's metadata. >This message is from gptboot. Loader does not know about your software mirror and it just checks GPT headers in the second and last LBA. >As i see now, there is inconsistency in the behavior between gptboot and GEOM_PART_GPT. >gptboot does reading of GPT backup header from the last LBA, but GEOM_PART_GPT from the alternate LBA which is not equal to last LBA in your case. >> Which would mean that gmirror and gpart metadata overlap, and that's >> why I see this message? >No. >> Anyway, I can still boot from the primary GPT header, and here's the >> second message I get during boot: >> >> GEOM: ad0: secondary GPT header is not in the last LBA. >> >> Why does GEOM reports ad0, and not mirror/gm0 as the provider? I've >> used the gmirror'ed device for gpart, not ad0. >This is how GEOM tasting works. Do you have any problem except for those messages? What does not work? >Also when you are writing problem report about gpart it will be not bad to add output of `gpart show` or `gpart list` commands. >And `gmirror list` for GEOM_MIRROR. I opened a discussion on this before the release. http://lists.freebsd.org/pipermail/freebsd-stable/2011-January/061184.ht ml On my 8.1 system, i get this message about the corrupt headers, but it booted on the 8.2 system it panics... I think a lot of people are going to get bit by this. As far as i know there is no warning anywhere that you can not use gpart and gmirror the whole disk. I also get this answer: << Maybe the boot process was made to be more standard-compliant :) >>> That is not the way it should work, well we make the boot process more standard compliant, bad luck for those who thougt it worked. I also convert back to normal partitioning and gmirror. Regards Johan _______________________________________________ freebsd-stable@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to "freebsd-stable-unsubscr...@freebsd.org"
