Bug#326873: Customized directories not mounted if NFS root is rw

[Frederic Dernbach <fredatwork@free.fr>]

Package: diskless
Version: 0.3.18.0.5

I installed the diskless package on a server and succeded to boot a 
diskless client successfully;

I successfully managed to start my diskless client (through PXE and 
recompiled kernel with appropriate options).The root file system is 
mounted as expected  by the client though NFS. On my server, I did not 
chage the defaults proposed by both commands 'diskless-newimage' and 
'diskless-newhost' at installation time:
- the root file system for myclient to NFS mount is : 
/var/lib/diskless/default/root
- the customized '/etc' '/tmp' and '/var' directories for my diskless 
client (with IP adress being 10.1.0.4) are stored in : 
/var/lib/diskless/default/10.1.0.4

However, during the client boot, the cutomized directories ( 
/var/lib/diskless/default/10.1.0.4/etc, 
/var/lib/diskless/default/10.1.0.4/var and 
/var/lib/diskless/default/10.1.0.4/tmp are not mounted as /etc, /var, 
/tmp). I believe they should.

I realize this is due to the fact that I boot I mount the NFS root file 
system with read-write option. I do this through my SYSLINUX/PXE boot 
script (otpion 'rw' of append insctruction in the PXE file below :

default diskless

label   diskless
       kernel bzImage
       append rw root=/dev/nfs 
nfsroot=10.1.0.3:/var/lib/diskless/default/root ip=dhcp

label   local
       localboot 0


When I mount the NFS root file system read-only, then the customized 
directories are mounted for my diskless client as expected.

I do not see where this kind of logic is implemented. I believe the 
customized directories should be mounted even if the root file system is 
mounted read-write.