On Mon, May 07, 2012 at 03:34:00PM +0200, Helmut Hullen wrote: > Hallo, Hugo, > > Du meintest am 07.05.12: > > >> =================== boot messages, kernel related ============== > >> > >> [boot with kernel 3.3.4] > >> May 7 06:55:26 Arktur kernel: ata5: exception Emask 0x10 SAct 0x0 > >> SErr 0x10000 action 0xe frozen > >> May 7 06:55:26 Arktur kernel: ata5: SError: { PHYRdyChg } > >> May 7 06:55:26 Arktur kernel: ata5: hard resetting link > > [...] > > > This is a hardware error. You have a device that's either dead or > > dying. (Given the number of errors, probably already dead). > > It's dead - R.I.P. > > I've tried it with a SATA-USB-adapter - that adapter produces dmesg > lines when connecting or disconnecting. > > And this special drive doesn't tell anything now. Shit.
Sorry to be the bearer of bad news. I don't think we can point the finger at btrfs here. It looks like you've lost most of your data -- losing a RAID-0 stripe across the whole FS isn't likely to have left much of it intact. If you've got the space (or the money to get it), mkfs.btrfs -m raid1 -d raid1 would have saved you here. [ Incidentally, thinking about it, the failure coming at a kernel upgrade could well be down to the additional stress of the power-down/reboot finally pushing a bad drive over the edge. ] In sympathy, Hugo. -- === Hugo Mills: hugo@... carfax.org.uk | darksatanic.net | lug.org.uk === PGP key: 515C238D from wwwkeys.eu.pgp.net or http://www.carfax.org.uk --- But somewhere along the line, it seems / That pimp became --- cool, and punk mainstream.
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