Bug 186032

Summary: failok option in /etc/fstab not being honored when NFS export is unavailable
Product: Base System Reporter: Brian O'Regan <briano>
Component: confAssignee: freebsd-bugs (Nobody) <bugs>
Status: Open ---    
Severity: Affects Only Me CC: a.petrov, ngie
Priority: Normal    
Version: Unspecified   
Hardware: Any   
OS: Any   

Description Brian O'Regan 2014-01-23 12:20:00 UTC
When attempting to boot FreeBSD 10 when we try to mount an export that is not currently available the boot process stalls at [tcp] 192.168.1.2:/x: RPCPROG_NFS: RPC: Program not registered and loops until the export becomes available.

fstab(5) documentation mentions:

"If the option ``failok'' is specified, the system will ignore any error
which happens during the mount of that filesystem, which would otherwise
cause the system to drop into single user mode.
"

My expectation is if we set failok we should ignore the RPC error and continue to boot.

root@basebsd10:/var/log # cat /etc/fstab
# Device        Mountpoint      FStype  Options Dump    Pass#
/dev/da0p2      /               ufs     rw      1       1
/dev/da0p3      none            swap    sw      0       0
192.168.1.2:/x/x       /mnt/x       nfs     rw,failok       0       0

How-To-Repeat: Point /etc/fstab to an export that is not available and boot the machine.
Comment 1 Enji Cooper freebsd_committer 2015-11-15 06:06:06 UTC
I've seen this too recently. I'm wondering if dump/pass == 0 vs != 0 would affect this any..
Comment 2 Eitan Adler freebsd_committer freebsd_triage 2018-05-20 23:53:53 UTC
For bugs matching the following conditions:
- Status == In Progress
- Assignee == "bugs@FreeBSD.org"
- Last Modified Year <= 2017

Do
- Set Status to "Open"