[Bug 262477] bectl.8: Mention a possible reboot -r failure after renaming
Date: Fri, 11 Mar 2022 00:38:59 UTC
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=262477
Bug ID: 262477
Summary: bectl.8: Mention a possible reboot -r failure after
renaming
Product: Documentation
Version: Latest
Hardware: Any
OS: Any
Status: New
Severity: Affects Only Me
Priority: ---
Component: Manual Pages
Assignee: bugs@FreeBSD.org
Reporter: jlduran@gmail.com
CC: doc@FreeBSD.org
beadm added a change in which the kenv variable `vfs.root.mountfrom` is
modified to reflect the new name after a boot environment rename:
https://github.com/vermaden/beadm/commit/023d18ea431dab7aa5c513e09b0e7abc61072817
I would prefer not to modify the kenv automatically, however I believe it would
be good to warn the user if issuing `reboot -r` by mentioning it in the man
page.
How to reproduce:
# bectl list
BE Active Mountpoint Space Created
default NR / 500M 2022-03-10 12:00
# kenv vfs.root.mountfrom
zfs:zroot/ROOT/default
# bectl rename default newbe
# reboot -r
Trying to mount root from zfs:zroot/ROOT/default []...
Mounting from zfs:zroot/ROOT/default failed with error 2; retrying for 3 more
seconds
Mounting from zfs:zroot/ROOT/default failed with error 2.
Loader variables:
vfs.root.mountfrom=zfs:zroot/ROOT/default
Manual root filesystem specification:
<fstype>:<device> [options]
Mount <device> using filesystem <fstype>
and with the specified (optional) option list.
eg. ufs:/dev/da0s1a
zfs:zroot/ROOT/default
cd9660:/dev/cd0 ro
(which is equivalent to: mount -t cd9660 -o ro /dev/cd0 /)
? List valid disk boot devices
. Yield 1 second (for background tasks)
<empty line> Abort manual input
mountroot> zfs:zroot/ROOT/newbe
Trying to mount root from zfs:zroot/ROOT/newbe []...
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