Libguestfs - Jun 2015 - Re: [PATCH] appliance: Make sure /tmp and /var/tmp are real directories.

Currently if /tmp (on the host) is a symlink, then the symlink is
copied into the appliance, probably pointing to a non-existent
directory, and everything goes downhill from there.

Avoid this by making sure that /tmp and /var/tmp are real directories.
---
 appliance/init | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/appliance/init b/appliance/init
index 3c5ef1b..3973f18 100755
--- a/appliance/init
+++ b/appliance/init
@@ -10,6 +10,11 @@ RUNLEVEL=S
 PREVLEVEL=N
 export RUNLEVEL PREVLEVEL
 
+# Make sure /tmp /var/tmp are real directories, not symlinks.
+rm -f /tmp /var/tmp
+mkdir /tmp /var/tmp
+chmod 1777 /tmp /var/tmp
+
 # Make sure to find all the libraries, also those in non-standard place
 # but with a proper ld.so configuration pointing at them
 ldconfig
-- 
2.3.1

In data mercoledì 3 giugno 2015 18:57:38, Richard W.M. Jones ha
scritto:
> Currently if /tmp (on the host) is a symlink, then the symlink is
> copied into the appliance, probably pointing to a non-existent
> directory, and everything goes downhill from there.
> 
> Avoid this by making sure that /tmp and /var/tmp are real directories.
> ---
>  appliance/init | 5 +++++
>  1 file changed, 5 insertions(+)
> 
> diff --git a/appliance/init b/appliance/init
> index 3c5ef1b..3973f18 100755
> --- a/appliance/init
> +++ b/appliance/init
> @@ -10,6 +10,11 @@ RUNLEVEL=S
>  PREVLEVEL=N
>  export RUNLEVEL PREVLEVEL
>  
> +# Make sure /tmp /var/tmp are real directories, not symlinks.
> +rm -f /tmp /var/tmp
> +mkdir /tmp /var/tmp
> +chmod 1777 /tmp /var/tmp
Maybe just do that if they are not existing already?

  if [ ! -d /tmp ]; then ...

-- 
Pino Toscano

On Fri, Jun 05, 2015 at 04:40:26PM +0200, Pino Toscano
wrote:
> In data mercoledì 3 giugno 2015 18:57:38, Richard W.M. Jones ha scritto:
> > Currently if /tmp (on the host) is a symlink, then the symlink is
> > copied into the appliance, probably pointing to a non-existent
> > directory, and everything goes downhill from there.
> > 
> > Avoid this by making sure that /tmp and /var/tmp are real directories.
> > ---
> >  appliance/init | 5 +++++
> >  1 file changed, 5 insertions(+)
> > 
> > diff --git a/appliance/init b/appliance/init
> > index 3c5ef1b..3973f18 100755
> > --- a/appliance/init
> > +++ b/appliance/init
> > @@ -10,6 +10,11 @@ RUNLEVEL=S
> >  PREVLEVEL=N
> >  export RUNLEVEL PREVLEVEL
> >  
> > +# Make sure /tmp /var/tmp are real directories, not symlinks.
> > +rm -f /tmp /var/tmp
> > +mkdir /tmp /var/tmp
> > +chmod 1777 /tmp /var/tmp
> 
> Maybe just do that if they are not existing already?
> 
>   if [ ! -d /tmp ]; then ...
Yup, that's likely to be better.  I'll push a modified patch.

Rich.

-- 
Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
Read my programming and virtualization blog: http://rwmj.wordpress.com
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