Re: [Xen-devel] [PATCH] install.sh: install as root with reasonable permissions

[Robert Read <robert@xxxxxxxxxxxxx>]

Currently install.sh doesn't change the source tree, which is a good  
thing. This allows it to be run by root when the tree is on a root  
squashing NFS export.  If the permissions need fixing, can we doing  
it during the build instead?
cheers,
robert

On Nov 30, 2005, at 16:33, Horms wrote:

> Hi,
>
> The topic of creating uninstall.sh came up recently, so I though I'd
> throw this install.sh patch into the ring.
>
> I noticed when running install.sh as non-root with a custom umask  
> of 0077,
> that amongst other things /lib becamed owned by my userid with mode  
> 0700.
> Which was not an entirley expected or desirable outcome.
>
> The patch below attempts to make install.sh install files as root,  
> with
> the permisions that would be created if umask is 0022. That is,
> directories are at least mode 755, and files are at least mode 644.
> Its a bit crude, but seems at the very least to be an improvement  
> on the
> current situation.
>
> An improvement would be to make sure that files are installed
> into install/ with the permissions that they should ultimately
> be installed into /root with. This would require somewhat more
> extensive changes than the chown effected below.
>
> --
> Horms
>
>
> # HG changeset patch
> # User Horms <horms@xxxxxxxxxxxx>
> # Node ID 1b6ef5cde5b123b86f1a11f0709d4b1347d47ce1
> # Parent  37d3e34dfdac009eac2bb040ff79ae711b2d50f9
> Make sure files are installed as root with reasonable permissions
>
> * Fix the permissions in $src, as in some cases,
>   particularly in lib and user/lib/python, they will
>   have been created with the prevailing umask.
>   After install this umask will cover /lib and /usr/lib/python,
>   and if the umask is restrictive, this will cause all
>   sorts of weird failures.
> * Make sure files are installed using tar are installed as root.root
>
> Signed-Off-By: Horms <horms@xxxxxxxxxxxx
>
> diff -r 37d3e34dfdac -r 9570d0b15d6e install.sh
> --- a/install.sh        Sat Nov 26 11:37:18 2005
> +++ b/install.sh        Mon Nov 28 02:56:54 2005
> @@ -22,8 +22,11 @@
>    exit 1
>  fi
>
> +echo "Fixing permissions in '$src/lib'"
> +find $src | xargs chmod a+rX
> +
>  echo "Installing Xen from '$src' to '$dst'..."
> -(cd $src; tar -cf - --exclude etc/init.d --exclude etc/hotplug -- 
> exclude etc/udev * ) | tar -C $dst -xf -
> +(cd $src; tar -cf - --owner 0 --group 0 --exclude etc/init.d -- 
> exclude etc/hotplug --exclude etc/udev * ) | tar -C $dst -xf -
>  cp -fdRL $src/etc/init.d/* $dst/etc/init.d/
>  echo "All done."
>
> diff -r 37d3e34dfdac -r 1b6ef5cde5b1 install.sh
> --- a/install.sh        Sat Nov 26 11:37:18 2005
> +++ b/install.sh        Mon Nov 28 02:58:09 2005
> @@ -22,8 +22,11 @@
>    exit 1
>  fi
>
> +echo "Fixing permissions in '$src'"
> +find $src | xargs chmod a+rX
> +
>  echo "Installing Xen from '$src' to '$dst'..."
> -(cd $src; tar -cf - --exclude etc/init.d --exclude etc/hotplug -- 
> exclude etc/udev * ) | tar -C $dst -xf -
> +(cd $src; tar -cf - --owner 0 --group 0 --exclude etc/init.d -- 
> exclude etc/hotplug --exclude etc/udev * ) | tar -C $dst -xf -
>  cp -fdRL $src/etc/init.d/* $dst/etc/init.d/
>  echo "All done."
>
>
>
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