[Bug 1217041] Re: initramfs-tools: please include separated nfs modules

[Yung Shen]

By generating initrd.lz with initramfs-tools 0.99ubuntu13.2 on stock live image and replace old on pxe server,
Tested and it works.

Detailed Steps:

1. booting system with current stock 12.04.3 image on usb
2. and enable -proposed in software-center-properties then apt-get udpate
3. apt-get install initramfs-tools 
4. mkinitramfs -c lzma -o /tmp/initrd.lz `uname -r`
5. unlzma -c -S .lz /tmp/initrd.lz| cpio -t | grep nfs
6. verified that nfs3 and nfs4 are both in initrd.lz


** Tags added: verification-done-precise

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https://bugs.launchpad.net/bugs/1217041

Title:
  initramfs-tools: please include separated nfs modules

Status in “initramfs-tools” package in Ubuntu:
  Fix Released
Status in “initramfs-tools” source package in Precise:
  Fix Committed
Status in “initramfs-tools” source package in Quantal:
  Invalid
Status in “initramfs-tools” source package in Raring:
  Fix Released
Status in “initramfs-tools” source package in Saucy:
  Fix Released

Bug description:
  In newer kernels (>= 3.6) the nfs modules were split up and we have to
  include nfsv3, nfsv4, and nfs_acl now. This was already fixed in
  raring in initramfs-tools 0.103ubuntu0.3, but precise with lts-raring
  kernel is still affected.

  Marking those modules for inclusion even on older kernels where they
  don't exist seems to be safe. initramfs-tools doesn't complain.

  [Impact]

  We have to manually configure the initramfs to include nfsv3/nfsv4
  modules before we can boot from NFS.

  It is not possible to boot the 12.04.3 LiveCD from NFS (regression
  compared to .0/.1/.2).

  [Test Case]

  With linux-image-generic-lts-raring installed, list the contents of
  the initramfs and check for nfs related modules:

  gunzip -c /boot/initrd.img-3.8.0-* | cpio -t | grep nfs

  nfsv3.ko and nfsv4.ko should both be present.

  [Regression Potential]

  Minimal. The change adds three extra modules to the initramfs, and
  they are ignored on kernels that don't have them.

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