https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=233113
Bug ID: 233113
Summary: bectl activate fails to set canmount=noauto for old
boot environment
Product: Base System
Version: 12.0-STABLE
Hardware: Any
OS: Any
Status: New
Severity: Affects Many People
Priority: ---
Component: bin
Assignee: [email protected]
Reporter: [email protected]
"bectl activate" is supposed to set canmount=auto for the old boot environment
and set the pool's bootfs property to the new boot environment. That's what
beadm does. However, bectl fails to clear canmount for the old boot
environment. Observed on 12.0-BETA3
Example:
somers@threonine /> bectl list
BE Active Mountpoint Space Created
12.0-BETA4 NR / 9.45G 2018-11-10 10:09
12.0-BETA3 - - 1.52M 2018-11-08 09:35
12.0-CURRENT-up-20180401_231457 - - 38.0G 2018-04-01 23:13
12.0-CURRENT-up-20180327_233010 - - 13.2G 2018-03-27 23:28
somers@threonine /> zfs list -o name,mountpoint,canmount -r tank/ROOT
NAME MOUNTPOINT CANMOUNT
tank/ROOT none on
tank/ROOT/12.0-BETA3 / noauto
tank/ROOT/12.0-BETA4 / on
tank/ROOT/12.0-CURRENT-up-20180327_233010 / noauto
tank/ROOT/12.0-CURRENT-up-20180401_231457 / noauto
somers@threonine /> sudo bectl create test
somers@threonine /> sudo bectl activate test
successfully activated boot environment test
somers@threonine /> zpool get bootfs tank
NAME PROPERTY VALUE SOURCE
tank bootfs tank/ROOT/test local
somers@threonine /> zfs list -o name,mountpoint,canmount -r tank/ROOT
NAME MOUNTPOINT CANMOUNT
tank/ROOT none on
tank/ROOT/12.0-BETA3 / noauto
tank/ROOT/12.0-BETA4 / on
tank/ROOT/12.0-CURRENT-up-20180327_233010 / noauto
tank/ROOT/12.0-CURRENT-up-20180401_231457 / noauto
tank/ROOT/test / noauto
!!!! 12.0-BETA4 still has CANMOUNT set to on !!!!
But beadm has no problem here:
somers@threonine /> sudo beadm activate 12.0-BETA4
Activated successfully
somers@threonine /> sudo beadm destroy test
Are you sure you want to destroy 'test'?
This action cannot be undone (y/[n]): y
Destroyed successfully
somers@threonine /> zfs list -o name,mountpoint,canmount -r tank/ROOT
NAME MOUNTPOINT CANMOUNT
tank/ROOT none on
tank/ROOT/12.0-BETA3 / noauto
tank/ROOT/12.0-BETA4 / on
tank/ROOT/12.0-CURRENT-up-20180327_233010 / noauto
tank/ROOT/12.0-CURRENT-up-20180401_231457 / noauto
somers@threonine /> sudo beadm create test
Created successfully
somers@threonine /> sudo beadm activate test
Activated successfully
somers@threonine /> zpool get bootfs tank
NAME PROPERTY VALUE SOURCE
tank bootfs tank/ROOT/test local
somers@threonine /> zfs list -o name,mountpoint,canmount -r tank/ROOT
NAME MOUNTPOINT CANMOUNT
tank/ROOT none on
tank/ROOT/12.0-BETA3 / noauto
tank/ROOT/12.0-BETA4 / noauto
tank/ROOT/12.0-CURRENT-up-20180327_233010 / noauto
tank/ROOT/12.0-CURRENT-up-20180401_231457 / noauto
tank/ROOT/test / noauto
This bug renders the new boot environment unbootable, because two root
filesystems get mounted, making devfs invisible. So it's a pretty critical
bug.
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