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Re: [Libguestfs] [PATCH 2/2] Make sure gpg-agent is terminated before umount

On Tuesday 28 July 2015 15:21:38 Cédric Bosdonnat wrote:
> gpg-agent uses /sysroot/dev/null and thus /sysroot/dev can't be
> unmounted if gpg-agent is still around. Note that this problem only
> affects installing packages on fedora-22 guests.
> ---
>  customize/customize_run.ml | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
> diff --git a/customize/customize_run.ml b/customize/customize_run.ml
> index bce0aca..81b0951 100644
> --- a/customize/customize_run.ml
> +++ b/customize/customize_run.ml
> @@ -96,7 +96,8 @@ exec >>%s 2>&1
>          apt-get $apt_opts install %s
>        " quoted_args
>      | "dnf" ->
> -      sprintf "dnf -y install %s" quoted_args
> +      sprintf "dnf -y install %s
> +               pkill gpg-agent" quoted_args
>      | "pisi" ->
>        sprintf "pisi it %s" quoted_args
>      | "pacman" ->

NACK to this patch, as it just sweeps the issue under the carpet.

Basically, this is triggered by the following:
  $ virt-builder fedora-22 --install <whatever>
gnupg2 (used to import keys the first time when installing packages
from a repository) requires the use of an agent, thus spawning
gnupg-agent which holds /sysroot/dev, which cannot be unmounted.

It seems that this issue has been fixed in recent versions of
gnupg2/rpm/dnf, so updating before installing anything:
  $ virt-builder fedora-22 --update --install <whatever>
which should then work (at least it does for me).

Rich, if this fixes the problem for you as well, would it be possible
to update the fedora-22 templates with newer versions of packages?

Pino Toscano

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