Andriy Gapon
2015-Nov-05 21:58 UTC
unable to boot a healthy zfs pool: all block copies unavailable
On 05/11/2015 21:29, Eugene M. Zheganin wrote:> Hi. > > Today one of my zfs pool disks dies, I was unable to change it on the > fly (video board was blocking it) so I powered off, changed disk (not in > root pool) and all of a sudden I realized that i cannot boot: > > ZFS: i/o error - all block copies unavailable > ZFS: can't read MOS of pool zroot > gptzfsboot: failed to mount default pool zroot > > It was first reboot since October, 16th, when I installed recent -STABLE > and upgraded zpool. I was pretty confident that I've installed loaders, > but I tried to reinstall them - no luck. Then I built today's STABLE and > installed loaders from it - same issue. I've even tried to install less > recent loaders from a server nearby - same issue. > > Two years ago I have encountered similar (if not identical) issue: > https://lists.freebsd.org/pipermail/freebsd-stable/2013-December/076317.html > The main difference was it was i386. Now I have an amd64 machine. I even > updated it's BIOS, and I still cannot boot. Zpool is fine: I'm writing > this message from this exact machine, however, I had to boot it from > today -STABLE from an USB stick. > > I've read about the zfsboottest utility and tried it on my unbootable > pool - after the bried info about it (traated as healthy) it said "OK". > I guess no errors were encountered. > > So... what can I do to restore the ability to boot from my root pool ?It could be that your BIOS is not able to read past 1TB (512 * INT_MAX). That seems to be a rather common problem for consumer motherboards. Here is an example of how it looked for me: https://people.freebsd.org/~avg/IMAG1099.jpg Fortunately, it wasn't a root pool that got the error.> P.S. Some info about the pool below. let me know if it's not enough - > I'll post more. > > [root at bsdrookie:/]# zpool list > NAME SIZE ALLOC FREE EXPANDSZ FRAG CAP DEDUP HEALTH ALTROOT > zroot 1,79T 690G 1,12T - 14% 37% 1.00x ONLINE - > > [root at bsdrookie:/]# zfs list > NAME USED AVAIL REFER MOUNTPOINT > zroot 704G 1,05T 2,07G legacy > zroot/crypted 516G 1,06T 502G - > zroot/jails 2,16G 1,05T 2,03G /usr/local/public/jails > zroot/tmp 223M 1,05T 223M /tmp > zroot/usr 182G 1,05T 17,0G /usr > zroot/usr/home 145G 1,05T 145G /usr/home > zroot/usr/ports 17,0G 1,05T 2,79G /usr/ports > zroot/usr/ports/distfiles 14,3G 1,05T 14,3G /usr/ports/distfiles > zroot/usr/ports/packages 384K 1,05T 384K /usr/ports/packages > zroot/usr/public 2,11G 1,05T 2,11G /usr/local/public > zroot/usr/src 1,56G 1,05T 1,56G /usr/src > zroot/var 1,19G 1,05T 83,7M /var > zroot/var/crash 992M 1,05T 992M /var/crash > zroot/var/db 113M 1,05T 39,7M /var/db > zroot/var/db/pkg 73,1M 1,05T 73,1M /var/db/pkg > zroot/var/empty 144K 1,05T 144K /var/empty > zroot/var/log 2,53M 1,05T 2,53M /var/log > zroot/var/mail 272K 1,05T 272K /var/mail > zroot/var/run 520K 1,05T 520K /var/run > zroot/var/tmp 22,7M 1,05T 22,7M /var/tmp > > > _______________________________________________ > freebsd-stable at freebsd.org mailing list > https://lists.freebsd.org/mailman/listinfo/freebsd-stable > To unsubscribe, send any mail to "freebsd-stable-unsubscribe at freebsd.org" >-- Andriy Gapon
Eugene M. Zheganin
2015-Nov-06 05:53 UTC
unable to boot a healthy zfs pool: all block copies unavailable
Hi. On 06.11.2015 02:58, Andriy Gapon wrote:> > It could be that your BIOS is not able to read past 1TB (512 * INT_MAX). That > seems to be a rather common problem for consumer motherboards. > Here is an example of how it looked for me: > https://people.freebsd.org/~avg/IMAG1099.jpg > Fortunately, it wasn't a root pool that got the error.Mine looks way different: yours shows the pool info, mine shows 'BTX halted' message: http://zhegan.in/files/cannot-read-MOS.jpg . I'm running the latest BIOS for this motherboard (Gigabyte Z77P-D3, updated yesterday, stilll it's only 2012h year). If it's still the BIOS-related bug, what wokraround can I use - reslice the disk and create the root pool inside first Tb, right ? Thanks. Eugene.