>Number:         7845
>Category:       port-sparc
>Synopsis:       diskless boot: nfs mounted root from Solaris 7 does not allow writing.
>Confidential:   no
>Severity:       critical
>Priority:       low
>Responsible:    port-sparc-maintainer (NetBSD/sparc Portmaster)
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Wed Jun 23 14:05:00 1999
>Last-Modified:
>Originator:     Stephen Usher
>Organization:
Oxford University
>Release:        1.4
>Environment:
NetBSD wegener 1.4 NetBSD 1.4 (GENERIC) #0: Sun May  9 03:00:22 MEST 1999 pk@flambard:/usr/src/sys/arch/sparc/compile/GENERIC sparc

>Description:
System is a Sun SPARCstation ELC OpenPROM version 2.4, 24MB RAM.

When mounting root, or any other filesystem from a Solaris 7 server using
NFS, files can be deleted but not created.

Affects diskless install as you can't create /dev devices locally.

Same system panics as in port-sparc/7678 if root filesystem on a 
RedHat Linux 6.0 system. (identical copies of filesystem & swap)
>How-To-Repeat:
Boot system, after being asked for shell and typing return to get
systemname# prompt type:-

systemname# touch /tmp/eep
touch: /tmp/eep: Inappropriate file type or format
systemname# 

On Solaris system:
/etc/bootparams:
wegener root=fred:/export/wegener/root swap=fred:/export/wegener/swap

/etc/dfs/dfstab:
share -F nfs -o rw=@10.0.0,root=@10.0.0 /export/wegener

On NetBSD system:-
/etc/fstab:fred:/export/wegener/swap       none    swap    sw,nfsmntpt=/swap
fred:/export/wegener/root       /       nfs     rw      0       0



>Fix:


>Audit-Trail:
>Unformatted: