В Fri, 28 Nov 2014 08:33:34 +0000
Ian Campbell <i...@hellion.org.uk> пишет:
> From: Ian Campbell <i...@debian.org>
>
> This avoids needing to update all the native update-grub stanzas to also probe
> for and arrange to load the relevant decompressor, which would be wasteful on
> native boots.
>
Could you give some more details why you need it?
> Signed-off-by: Ian Campbell <i...@debian.org>
> ---
> util/grub-install.c | 25 +++++++++++++++++++++++++
> 1 file changed, 25 insertions(+)
>
> diff --git a/util/grub-install.c b/util/grub-install.c
> index 7a7734e..6ad5afb 100644
> --- a/util/grub-install.c
> +++ b/util/grub-install.c
> @@ -422,6 +422,14 @@ push_cryptodisk_module (const char *mod, void *data
> __attribute__ ((unused)))
> }
>
> static void
> +push_all_decompressor_modules(void)
> +{
> + grub_install_push_module ("gzio");
> + grub_install_push_module ("xzio");
> + grub_install_push_module ("lzopio");
> +}
> +
It is not enough. Some of them need another modules that are autoloaded
by normal.
> +static void
> probe_mods (grub_disk_t disk)
> {
> grub_partition_t part;
> @@ -1228,6 +1236,23 @@ main (int argc, char *argv[])
> }
> }
>
> +
> + switch (platform)
> + {
> + case GRUB_INSTALL_PLATFORM_I386_XEN:
> + case GRUB_INSTALL_PLATFORM_X86_64_XEN:
> + /* When booting a Xen PV kernel grub may need to decompress the
> + * kernel which may use a variety of algorithmns. Since we try
> + * to reuse the native grub.cfg files rather than trying to
> + * insmod the relevant decompressors on the fly we build them
> + * into the core image. This means we avoid needlessly loading
> + * modules on native. */
> + push_all_decompressor_modules();
> + break;
> + default:
> + break;
> + }
> +
> grub_install_copy_files (grub_install_source_directory,
> grubdir, platform);
>
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