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Re: [PATCH 2/2] Add emdedded-config hidden option to grub-install.


From: Vladimir 'φ-coder/phcoder' Serbinenko
Subject: Re: [PATCH 2/2] Add emdedded-config hidden option to grub-install.
Date: Thu, 22 May 2014 09:33:05 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Icedove/24.4.0

On 19.05.2014 09:03, Glenn Washburn wrote:
> One thing to note with this patch is that the supplied embedded config 
> file is appended to the normally generated one.  I did this to allow 
> the default root and prefix to be generated and subsequently overridden 
> if desired.
> 
embed config isn't meant to hold user-supplied command. Normal config is
for this. If you want to change root/prefix, why not just install to the
location where the desired prefix is?
> ---
>  util/grub-install.c | 20 +++++++++++++++++++-
>  1 file changed, 19 insertions(+), 1 deletion(-)
> 
> diff --git a/util/grub-install.c b/util/grub-install.c
> index d66030f..85dd3a1 100644
> --- a/util/grub-install.c
> +++ b/util/grub-install.c
> @@ -74,6 +74,7 @@ static char *memdisk = NULL;
>  static int have_load_cfg = 0;
>  static FILE * load_cfg_f = NULL;
>  static char *load_cfg;
> +static char *embed_cfg = NULL;
>  static int install_bootsector = 1;
>  static char *label_font;
>  static char *label_color;
> @@ -100,6 +101,7 @@ enum
>      OPTION_BOOTLOADER_ID, 
>      OPTION_EFI_DIRECTORY,
>      OPTION_MEMDISK,
> +    OPTION_EMBED_CFG,
>      OPTION_FONT,
>      OPTION_DEBUG,
>      OPTION_DEBUG_IMAGE,
> @@ -188,6 +190,11 @@ argp_parser (int key, char *arg, struct argp_state 
> *state)
>        memdisk = xstrdup (arg);
>        return 0;
>  
> +    case OPTION_EMBED_CFG:
> +      free (embed_cfg);
> +      embed_cfg = xstrdup (arg);
> +      return 0;
> +
>      case OPTION_DISK_MODULE:
>        free (disk_module);
>        disk_module = xstrdup (arg);
> @@ -264,6 +271,7 @@ static struct argp_option options[] = {
>     /* TRANSLATORS: "TARGET" as in "target platform".  */
>     0, N_("install GRUB for TARGET platform [default=%s]; available targets: 
> %s"), 2},
>    {"memdisk", OPTION_MEMDISK, N_("FILE"), OPTION_HIDDEN, 0, 2},
> +  {"embedded-config", OPTION_EMBED_CFG, N_("FILE"), OPTION_HIDDEN, 0, 2},
>    {"grub-setup", OPTION_SETUP, "FILE", OPTION_HIDDEN, 0, 2},
>    {"grub-mkrelpath", OPTION_MKRELPATH, "FILE", OPTION_HIDDEN, 0, 2},
>    {"grub-mkdevicemap", OPTION_MKDEVICEMAP, "FILE", OPTION_HIDDEN, 0, 2},
> @@ -1586,7 +1594,17 @@ main (int argc, char *argv[])
>      grub_util_error ("%s", _("You've found a bug"));
>  
>    if (load_cfg_f)
> -    fclose (load_cfg_f);
> +    {
> +      if (embed_cfg)
> +        {
> +          size_t size = grub_util_get_image_size(embed_cfg);
> +          char *embed_cfg_data = grub_util_read_image(embed_cfg);
> +          grub_util_write_image(embed_cfg_data, size, load_cfg_f, load_cfg);
> +          free(embed_cfg_data);
> +        }
> +      
> +      fclose (load_cfg_f);
> +    }
>  
>    char *imgfile = grub_util_path_concat (2, platdir,
>                                      core_name);
> 


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