Re: [Fedora-livecd-list] [PATCH 2/5] Beta version of editliveos.py (edit-livecd)

[Frederick Grose]

On Thu, Apr 14, 2011 at 12:07 PM, Frederick Grose <fgrose(a)gmail.com&gt; wrote:

>  The full script is available at
>  https://bugzilla.redhat.com/show_bug.cgi?id=448030#c41
>
>  [Patch 2/5]
>  Author: Frederick Grose <fgrose(a)sugarlabs.org&gt;
>  Date:   Thu Apr 14 09:48:41 2011 -0400
>
>      Support refreshing of attached LiveOS devices.
>
>      Provide a new feature to refresh an attached LiveOS source image with a
>      renewed rootfs and freshed overlay and, optionally, skip building a new
>      .iso file.
>
>      Updated base_on() to support selinux contexts, provide a liveos_mount()
>      function, new functions to check disc space for building and refreshing
>      (with an extra space option to test or adjust staging space).  Provide
>      an option to bypass the break to shell or script to permit
>  uninterrupted
>      processing. Include the kernel architecture of the source in the .iso
>      image name, support F15-style rd.luks=0 in the boot configuration
>      adjustment, and provide updated usage statements.
>  
 Unfortunately, the recent (09 April 2011, on my image) rsync update from
3.0.7-3.fc14 to 3.0.8-1.fc14 has broken the behavior for this application
such that symlinks do not get the right SELinux context.  For example,
/lib/ld-linux.so.2 is unconfined_u:object_r:file_t:s0 instead of
system_u:object_r:lib_t:s0

This results in a failed boot of a refreshed image or newly installed image.

A workaround, for now, is to interrupt the boot and insert selinux=0 with
the
boot parameters.  (An unmodified followup boot, will trigger a filesystem
relabel, and things are then back in order.)

          --Fred