From mboxrd@z Thu Jan 1 00:00:00 1970 From: NeilBrown Subject: Re: RAID6 Array crash during reshape.....now will not re-assemble. Date: Mon, 14 Mar 2016 12:08:06 +1100 Message-ID: <87r3fdx3wp.fsf@notabene.neil.brown.name> References: <874mcglcsd.fsf@notabene.neil.brown.name> Mime-Version: 1.0 Content-Type: multipart/signed; boundary="=-=-="; micalg=pgp-sha1; protocol="application/pgp-signature" Return-path: In-Reply-To: Sender: linux-raid-owner@vger.kernel.org To: Another Sillyname Cc: Linux-RAID List-Id: linux-raid.ids --=-=-= Content-Type: text/plain On Sat, Mar 12 2016, Another Sillyname wrote: > Neil > > Thanks for the insight, much appreciated. > > I've tried what you suggested and still get stuck. > >>:losetup /dev/loop0 /tmp/foo/sdb1 >>:losetup /dev/loop1 /tmp/foo/sdc1 >>:losetup /dev/loop2 /tmp/foo/sdd1 >>:losetup /dev/loop3 /tmp/foo/sde1 >>:losetup /dev/loop4 /tmp/foo/sdf1 >>:losetup /dev/loop5 /tmp/foo/sdg1 >>:losetup /dev/loop6 /tmp/foo/sdh1 > > >>:mdadm --assemble --force --update=revert-reshape --invalid-backup /dev/md127 /dev/loop0 /dev/loop1 /dev/loop2 /dev/loop3 /dev/loop4 /dev/loop5 /dev/loop6 > mdadm: /dev/md127: Need a backup file to complete reshape of this array. > mdadm: Please provided one with "--backup-file=..." > mdadm: (Don't specify --update=revert-reshape again, that part succeeded.) > > As you can see it 'seems' to have accepted the revert command, but > even though I've told it the backup is invalid it's still insisting on > the backup being made available. > > Any further thoughts or insights would be gratefully received. Try giving it a backup file too. It doesn't matter what the contents of the file are because you have told it the file is invalid. But I guess it thinks it might still need a file to write new backups to temporarily. NeilBrown --=-=-= Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIcBAEBAgAGBQJW5g72AAoJEDnsnt1WYoG5A4cP/A9UuQvKMIJuqfAGDeCtB9VD bpO6bfl7HLOzleKqIoEuygH+hYzzSIr4bGzbFgIxClTvk6Ebdkpfw3Vf47Hycflp hpO0/a6opB9dUsrYCsu0YwlaEMTGaMPfBlmh6swb9VDEvEORv55GfPbKkw6HfYQh 7O54rFBV+OHODC15m6+5/+7yS9l81VvEO5yexURBbA3dVznnGSUSZFWMQzta6Z2L 4lkU3nATLa3l3feTebx5QQ8SS1v5K3ebt3qtjMQfM3yyyl5z92/OdeTPw/i77GoE j/RSiyO8DmWljvv5yqcvBjDEZm+aKNjoO0R4zwTvnaV5jez8R2XUfwNQ62HNGTRm 6Lre4gLyiJiBDBH6Dg9BapOAcZbQL1uCIpTZFR+CrsprT0CB8C/L9zV80xNpi9G0 gdV8/Ub0cDA4zEohEx+qmBFxj09wPdIQL3hdBUHMOx1LKNNlqB52ie94usw3T2XA u82z9Mqo0ghuZ3gmjNYUNcY05xRAryn36QJ2LQAWyIxw+u3e2+KUfywGzGx1piy/ 5FNcV8g8rVYDTnDtTm/SGKAJEmBj1Le5dJpvmSHnQFOXp/yWW/9f/dAIbGew/87x uipXAip4SeEh2je7ErB6mMl5980zZhdC5bWp9ObOTDu7upS/9cr2XDqhReJsTWnC ya+OORpARCc/SKH1FNcA =skE5 -----END PGP SIGNATURE----- --=-=-=--