Re: [PATCH] Fix for https://gitlab.com/qemu-project/qemu/-/work_items/4141:

Please use a $SUBJECT that describes what you're fixing

  "Fix shutdown command path not found on Solaris"

On Sat, Aug 08, 2026 at 12:34:06PM +0200, Thomas Dreibholz wrote:
> Using the correct paths for "shutdown", "reboot", etc. under Solaris.
> 
> Signed-off-by: Thomas Dreibholz <[email protected]>
> ---
> This patch fixes the issue of the not-working shutdown command
> in the QEMU Guest Agent under Solaris
> (https://gitlab.com/qemu-project/qemu/-/work_items/4141) by
> fixing the command paths from /sbin/ to /usr/sbin/ in the
> Solaris build.
> ---
>  qga/commands-posix.c | 16 ++++++++++++----
>  1 file changed, 12 insertions(+), 4 deletions(-)
> 
> diff --git a/qga/commands-posix.c b/qga/commands-posix.c
> index 837be51c40..e24248a0f3 100644
> --- a/qga/commands-posix.c
> +++ b/qga/commands-posix.c
> @@ -216,9 +216,17 @@ out:
>      return retcode;
>  }
>  
> +#ifdef CONFIG_SOLARIS
> +#define POWEROFF_CMD_PATH "/usr/sbin/poweroff"
> +#define SHUTDOWN_CMD_PATH "/usr/sbin/shutdown"
> +#define HALT_CMD_PATH     "/usr/sbin/halt"
> +#define REBOOT_CMD_PATH   "/usr/sbin/reboot"
> +#else
>  #define POWEROFF_CMD_PATH "/sbin/poweroff"
> -#define HALT_CMD_PATH "/sbin/halt"
> -#define REBOOT_CMD_PATH "/sbin/reboot"
> +#define SHUTDOWN_CMD_PATH "/sbin/shutdown"
> +#define HALT_CMD_PATH     "/sbin/halt"
> +#define REBOOT_CMD_PATH   "/sbin/reboot"
> +#endif

I wonder why we need to use a qualified path at all. We're passing these
to ga_run_command and that uses execvp, which searches $PATH.

qga runs as root and can be expected to have these in $PATH.

>  
>  void qmp_guest_shutdown(const char *mode, Error **errp)
>  {
> @@ -262,7 +270,7 @@ void qmp_guest_shutdown(const char *mode, Error **errp)
>          return;
>      }
>  
> -    const char *argv[] = {"/sbin/shutdown",
> +    const char *argv[] = {SHUTDOWN_CMD_PATH,
>  #ifdef CONFIG_SOLARIS
>                            shutdown_flag, "-g0", "-y",
>  #elif defined(CONFIG_BSD)
> @@ -274,7 +282,7 @@ void qmp_guest_shutdown(const char *mode, Error **errp)
>  
>      /*
>       * If the specific command exists (poweroff, halt or reboot), use it instead
> -     * of /sbin/shutdown.
> +     * of SHUTDOWN_CMD_PATH.
>       */
>      if (shutdown_cmd != NULL) {
>          argv[0] = shutdown_cmd;

With regards,
Daniel
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