Date: Fri, 30 Dec 2016 19:46:52 +0300 From: Slawa Olhovchenkov <slw@zxy.spb.ru> To: "Andrey V. Elsukov" <ae@FreeBSD.org> Cc: freebsd-hackers@freebsd.org Subject: Re: How to safely remove rest of GTP? Message-ID: <20161230164652.GO37118@zxy.spb.ru> In-Reply-To: <d79b8568-72e8-415e-4923-14e3c730267e@FreeBSD.org> References: <20161230124407.GN37118@zxy.spb.ru> <d79b8568-72e8-415e-4923-14e3c730267e@FreeBSD.org>
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On Fri, Dec 30, 2016 at 07:28:19PM +0300, Andrey V. Elsukov wrote: > On 30.12.2016 15:44, Slawa Olhovchenkov wrote: > > How to safely remove rest of GPT? > > Disk have actual data (part of ZFS), I am don't need to destroy this > > data. > > > > GEOM: da6: the primary GPT table is corrupt or invalid. > > GEOM: da6: using the secondary instead -- recovery strongly advised. > > GEOM: da22: the primary GPT table is corrupt or invalid. > > GEOM: da22: using the secondary instead -- recovery strongly advised. > > GEOM: da6: the primary GPT table is corrupt or invalid. > > GEOM: da6: using the secondary instead -- recovery strongly advised. > > GEOM: da22: the primary GPT table is corrupt or invalid. > > GEOM: da22: using the secondary instead -- recovery strongly advised. > > You may try attached patch, I did only basic tests, so first try > somewhere :) What purpose of this patch? > -- > WBR, Andrey V. Elsukov > Index: sys/geom/part/g_part_gpt.c > =================================================================== > --- sys/geom/part/g_part_gpt.c (revision 310784) > +++ sys/geom/part/g_part_gpt.c (working copy) > @@ -690,7 +690,8 @@ g_part_gpt_destroy(struct g_part_table *basetable, > * Wipe the first 2 sectors to clear the partitioning. Wipe the last > * sector only if it has valid secondary header. > */ > - basetable->gpt_smhead |= 3; > + if (table->state[GPT_ELT_PRIHDR] == GPT_STATE_OK) > + basetable->gpt_smhead |= 3; > if (table->state[GPT_ELT_SECHDR] == GPT_STATE_OK && > table->lba[GPT_ELT_SECHDR] == pp->mediasize / pp->sectorsize - 1) > basetable->gpt_smtail |= 1; > _______________________________________________ > freebsd-hackers@freebsd.org mailing list > https://lists.freebsd.org/mailman/listinfo/freebsd-hackers > To unsubscribe, send any mail to "freebsd-hackers-unsubscribe@freebsd.org"
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