Solaris

# zonecfg myzone

zonecfg:myzone> remove inherit-pkg-dir
zonecfg:myzone:inherit-pkg-dir> set dir=/lib
zonecfg:myzone:inherit-pkg-dir> end
zonecfg:myzone>

zonecfg:myzone> info

zonecfg:myzone> verify
zonecfg:myzone> commit 
zonecfg:myzone> exit

 How can we have a read/write directory inside a IPD (Inherited Package Directory) or a readonly mount inside a zone 

 Often we need to have read/write directories inside the IPDs so that we can install packages in a specific sparse root zone. Consider a package which installs its binaries in /usr/local. Since /usr is readonly inside a sparse root zone /usr/local will also be readonly. But we can have a subdirectory of IPD which is writable, following the steps documented below: 
No need for this step if you have a free slice 
   # mkfile 100m /space/zones/local
  # lofiadm -a /space/zones/local
  /dev/lofi/2
Configure zone for adding a writable filesystem inside an IPD: 
   # zonecfg -z zone2
  zonecfg:zone2> add fs
  zonecfg:zone2:fs> set dir=/usr/local
  zonecfg:zone2:fs> set special=/dev/lofi/2
  zonecfg:zone2:fs> set raw=/dev/rlofi/2
  zonecfg:zone2:fs> set type=ufs
  zonecfg:zone2:fs> end
  zonecfg:zone2> commit
  zonecfg:zone2> info
  zonename: zone2
  zonepath: /space/zones/zone2
  autoboot: false
  bootargs:
  pool:
  limitpriv:
  inherit-pkg-dir:
          dir: /lib
  inherit-pkg-dir:
          dir: /platform
  inherit-pkg-dir:
          dir: /sbin
  inherit-pkg-dir:
          dir: /usr
  fs:
          dir: /usr/local
          special: /dev/lofi/2
          raw: /dev/rlofi/2
          type: ufs
          options: []
  zonecfg:zone2> exit
You need to create a /usr/local since zone utilities wont be able to create it inside the IPD as it is readonly: 
   # mkdir /usr/local/
  # newfs /dev/lofi/2
  newfs: construct a new file system /dev/rlofi/2: (y/n)? y
  /dev/rlofi/2:   204600 sectors in 341 cylinders of 1 tracks, 600 sectors
          99.9MB in 22 cyl groups (16 c/g, 4.69MB/g, 2240 i/g)
  super-block backups (for fsck -F ufs -o b=#) at:
   32, 9632, 19232, 28832, 38432, 48032, 57632, 67232, 76832, 86432,
   115232, 124832, 134432, 144032, 153632, 163232, 172832, 182432, 192032, 201632
Now Install the zone: 
   # zoneadm -z zone2 install
  Preparing to install zone <zone2>.
  Checking <ufs> file system on device </dev/rlofi/2> to be mounted at </space/zones/zone2/root>
  Creating list of files to copy from the global zone.
  Copying <2066> files to the zone.
  Initializing zone product registry.
  Determining zone package initialization order.
  Preparing to initialize <977> packages on the zone.
  Initialized <977> packages on zone.
  Zone <zone2> is initialized.
  The file </space/zones/zone2/root/var/sadm/system/logs/install_log> contains a log of the zone installation.
Checking whether the /usr/local inside is writable: 
   # zoneadm -z zone2 boot
  # zlogin zone2
  [Connected to zone 'zone2' pts/3]
  Sun Microsystems Inc.   SunOS 5.11      snv_46  October 2007
  # cd /usr
  # touch a
  touch: a cannot create
  # cd local
  # touch a
  # ls
  a           lost+found

    Customize your zone specific package so that it gets installed in /usr/local