mirror of
https://github.com/ostreedev/ostree.git
synced 2024-10-27 18:55:11 +03:00
admin: Support installing a kernel from the tree, default to it
The "protocol" here is rather lame; we just look for /boot/vmlinuz-RELEASE and /lib/modules/RELEASE. But good enough for now.
This commit is contained in:
parent
19df2d372d
commit
16d312e82f
@ -20,6 +20,7 @@
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triggersdir = $(libexecdir)/ostree/triggers.d
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triggers_SCRIPTS = \
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src/triggers/triggers.d/0001ldconfig.trigger \
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src/triggers/triggers.d/0005depmod.trigger \
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src/triggers/triggers.d/0010mime-database.trigger \
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src/triggers/triggers.d/0020dconf.trigger \
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src/triggers/triggers.d/0030glib.trigger \
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@ -35,9 +35,11 @@ typedef struct {
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static gboolean opt_no_kernel;
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static gboolean opt_force;
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static gboolean opt_host_kernel;
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static GOptionEntry options[] = {
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{ "no-kernel", 0, 0, G_OPTION_ARG_NONE, &opt_no_kernel, "Don't update kernel related config (initramfs, bootloader)", NULL },
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{ "host-kernel", 0, 0, G_OPTION_ARG_NONE, &opt_host_kernel, "Use currently booted kernel, not kernel from tree", NULL },
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{ "force", 0, 0, G_OPTION_ARG_NONE, &opt_force, "Overwrite any existing deployment", NULL },
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{ NULL }
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};
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@ -579,16 +581,27 @@ do_update_kernel (OtAdminDeploy *self,
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GError **error)
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{
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gboolean ret = FALSE;
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gs_unref_object GSSubprocess *proc = NULL;
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gs_unref_ptrarray GPtrArray *args = NULL;
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if (!gs_subprocess_simple_run_sync (gs_file_get_path_cached (self->ostree_dir),
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GS_SUBPROCESS_STREAM_DISPOSITION_NULL,
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cancellable, error,
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"ostree", "admin",
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"--ostree-dir", gs_file_get_path_cached (self->ostree_dir),
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"update-kernel",
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gs_file_get_path_cached (deploy_path),
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opt_no_kernel ? "--modules-only" : NULL,
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NULL))
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args = g_ptr_array_new ();
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ot_ptrarray_add_many (args, "ostree", "admin",
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"--ostree-dir", gs_file_get_path_cached (self->ostree_dir),
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"update-kernel",
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gs_file_get_path_cached (deploy_path), NULL);
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if (opt_no_kernel)
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g_ptr_array_add (args, "--modules-only");
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if (opt_host_kernel)
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g_ptr_array_add (args, "--host-kernel");
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g_ptr_array_add (args, NULL);
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proc = gs_subprocess_new_simple_argv ((char**)args->pdata,
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GS_SUBPROCESS_STREAM_DISPOSITION_INHERIT,
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GS_SUBPROCESS_STREAM_DISPOSITION_INHERIT,
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cancellable, error);
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if (!proc)
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goto out;
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if (!gs_subprocess_wait_sync_check (proc, cancellable, error))
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goto out;
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ret = TRUE;
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@ -30,12 +30,19 @@
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typedef struct {
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GFile *ostree_dir;
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const char *deploy_path;
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GFile *kernel_path;
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char *release;
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} OtAdminUpdateKernel;
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static gboolean opt_modules_only;
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static gboolean opt_host_kernel;
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static char * opt_release;
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static GOptionEntry options[] = {
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{ "modules-only", 0, 0, G_OPTION_ARG_NONE, &opt_modules_only, "Only copy kernel modules", NULL },
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{ "host-kernel", 0, 0, G_OPTION_ARG_NONE, &opt_host_kernel, "Use currently booted kernel, not kernel from tree", NULL },
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{ "release", 0, 0, G_OPTION_ARG_STRING, &opt_release, "With host kernel, use this release", NULL },
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{ NULL }
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};
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@ -49,7 +56,7 @@ copy_modules (OtAdminUpdateKernel *self,
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ot_lobj GFile *src_modules_file = NULL;
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ot_lobj GFile *dest_modules_parent = NULL;
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ot_lobj GFile *dest_modules_file = NULL;
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src_modules_file = ot_gfile_from_build_path ("/lib/modules", release, NULL);
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dest_modules_file = ot_gfile_get_child_build_path (self->ostree_dir, "modules", release, NULL);
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dest_modules_parent = g_file_get_parent (dest_modules_file);
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@ -69,21 +76,117 @@ copy_modules (OtAdminUpdateKernel *self,
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return ret;
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}
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static gboolean
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get_kernel_from_boot (GFile *path,
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GFile **out_kernel,
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GCancellable *cancellable,
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GError **error)
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{
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gboolean ret = FALSE;
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ot_lobj GFileEnumerator *dir_enum = NULL;
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ot_lobj GFileInfo *file_info = NULL;
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ot_lobj GFile *ret_kernel = NULL;
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dir_enum = g_file_enumerate_children (path, OSTREE_GIO_FAST_QUERYINFO,
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G_FILE_QUERY_INFO_NOFOLLOW_SYMLINKS,
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NULL, error);
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if (!dir_enum)
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goto out;
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while ((file_info = g_file_enumerator_next_file (dir_enum, cancellable, error)) != NULL)
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{
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const char *name;
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name = g_file_info_get_name (file_info);
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if (!g_str_has_prefix (name, "vmlinuz-"))
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continue;
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ret_kernel = g_file_get_child (path, name);
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break;
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}
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ot_transfer_out_value (out_kernel, &ret_kernel);
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ret = TRUE;
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out:
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return ret;
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}
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static gboolean
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setup_kernel (OtAdminUpdateKernel *self,
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GCancellable *cancellable,
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GError **error)
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{
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gboolean ret = FALSE;
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ot_lobj GFile *deploy_path = NULL;
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ot_lobj GFile *deploy_boot_path = NULL;
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ot_lobj GFile *src_kernel_path = NULL;
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ot_lobj GFile *host_boot = NULL;
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ot_lfree char *prefix = NULL;
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const char *release = NULL;
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const char *kernel_name = NULL;
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deploy_path = g_file_new_for_path (self->deploy_path);
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deploy_boot_path = g_file_get_child (deploy_path, "boot");
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if (!get_kernel_from_boot (deploy_boot_path, &src_kernel_path,
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cancellable, error))
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goto out;
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if (src_kernel_path == NULL)
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{
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g_set_error (error, G_IO_ERROR, G_IO_ERROR_FAILED,
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"No kernel found in %s", gs_file_get_path_cached (deploy_boot_path));
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goto out;
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}
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host_boot = g_file_new_for_path ("/boot/ostree");
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if (!gs_file_ensure_directory (host_boot, TRUE, cancellable, error))
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goto out;
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kernel_name = gs_file_get_basename_cached (src_kernel_path);
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release = strchr (kernel_name, '-');
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if (release == NULL)
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{
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g_set_error (error, G_IO_ERROR, G_IO_ERROR_FAILED,
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"Invalid kernel name %s, no - found", gs_file_get_path_cached (src_kernel_path));
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goto out;
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}
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self->release = g_strdup (release + 1);
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prefix = g_strndup (kernel_name, release - kernel_name);
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self->kernel_path = ot_gfile_get_child_strconcat (host_boot, prefix, "-", self->release, NULL);
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if (!g_file_copy (src_kernel_path, self->kernel_path,
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G_FILE_COPY_OVERWRITE | G_FILE_COPY_ALL_METADATA | G_FILE_COPY_NOFOLLOW_SYMLINKS,
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cancellable, NULL, NULL, error))
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goto out;
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g_print ("ostadmin: Deploying kernel %s\n", gs_file_get_path_cached (self->kernel_path));
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ret = TRUE;
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out:
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if (error)
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g_prefix_error (error, "Error copying kernel: ");
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return ret;
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}
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static gboolean
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update_initramfs (OtAdminUpdateKernel *self,
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const char *release,
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const char *deploy_path,
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GCancellable *cancellable,
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GError **error)
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{
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gboolean ret = FALSE;
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const char *deploy_path = self->deploy_path;
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ot_lfree char *initramfs_name = NULL;
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ot_lobj GFile *initramfs_file = NULL;
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initramfs_name = g_strconcat ("initramfs-ostree-", release, ".img", NULL);
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initramfs_file = ot_gfile_from_build_path ("/boot", initramfs_name, NULL);
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initramfs_name = g_strconcat ("initramfs-", self->release, ".img", NULL);
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initramfs_file = ot_gfile_from_build_path ("/boot", "ostree", initramfs_name, NULL);
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if (!g_file_query_exists (initramfs_file, NULL))
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{
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gs_unref_ptrarray GPtrArray *mkinitramfs_args = NULL;
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gs_unref_object GSSubprocess *proc = NULL;
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ot_lobj GFile *tmpdir = NULL;
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ot_lfree char *initramfs_tmp_path = NULL;
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ot_lobj GFile *ostree_vardir = NULL;
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@ -98,7 +201,8 @@ update_initramfs (OtAdminUpdateKernel *self,
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goto out;
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ostree_vardir = g_file_get_child (self->ostree_dir, "var");
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ostree_moduledir = g_file_get_child (self->ostree_dir, "modules");
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if (opt_host_kernel)
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ostree_moduledir = g_file_get_child (self->ostree_dir, "modules");
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dracut_log_path = ot_gfile_get_child_build_path (ostree_vardir, "log", "dracut.log", NULL);
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tmp_log_out = (GOutputStream*)g_file_replace (dracut_log_path, NULL, FALSE,
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@ -113,20 +217,28 @@ update_initramfs (OtAdminUpdateKernel *self,
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* security flaw, because we've bind-mounted dracut's view
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* of /tmp to the securely-created tmpdir above.
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*/
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ot_ptrarray_add_many (mkinitramfs_args,
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"linux-user-chroot",
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"--mount-readonly", "/",
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"--mount-proc", "/proc",
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"--mount-bind", "/dev", "/dev",
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"--mount-bind", gs_file_get_path_cached (ostree_vardir), "/var",
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"--mount-bind", gs_file_get_path_cached (tmpdir), "/tmp", NULL);
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if (ostree_moduledir)
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ot_ptrarray_add_many (mkinitramfs_args, "--mount-bind", gs_file_get_path_cached (ostree_moduledir), "/lib/modules", NULL);
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ot_ptrarray_add_many (mkinitramfs_args, deploy_path,
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"dracut", "-f", "/tmp/initramfs-ostree.img", self->release,
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NULL);
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g_ptr_array_add (mkinitramfs_args, NULL);
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g_print ("Generating initramfs using %s...\n", deploy_path);
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if (!gs_subprocess_simple_run_sync (NULL, GS_SUBPROCESS_STREAM_DISPOSITION_NULL,
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cancellable, error,
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"linux-user-chroot",
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"--mount-readonly", "/",
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"--mount-proc", "/proc",
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"--mount-bind", "/dev", "/dev",
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"--mount-bind", gs_file_get_path_cached (ostree_vardir), "/var",
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"--mount-bind", gs_file_get_path_cached (tmpdir), "/tmp",
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"--mount-bind", gs_file_get_path_cached (ostree_moduledir), "/lib/modules",
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deploy_path,
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"dracut", "-f", "/tmp/initramfs-ostree.img", release,
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NULL))
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proc = gs_subprocess_new_simple_argv ((gchar**)mkinitramfs_args->pdata,
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GS_SUBPROCESS_STREAM_DISPOSITION_INHERIT,
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GS_SUBPROCESS_STREAM_DISPOSITION_INHERIT,
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cancellable, error);
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if (!proc)
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goto out;
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if (!gs_subprocess_wait_sync_check (proc, cancellable, error))
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goto out;
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initramfs_tmp_file = g_file_get_child (tmpdir, "initramfs-ostree.img");
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@ -221,7 +333,6 @@ get_kernel_path_from_release (OtAdminUpdateKernel *self,
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static gboolean
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update_grub (OtAdminUpdateKernel *self,
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const char *release,
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GCancellable *cancellable,
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GError **error)
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{
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@ -241,19 +352,25 @@ update_grub (OtAdminUpdateKernel *self,
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ot_lfree char *initramfs_arg = NULL;
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ot_lobj GFile *kernel_path = NULL;
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if (!get_kernel_path_from_release (self, release, &kernel_path,
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cancellable, error))
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goto out;
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if (kernel_path == NULL)
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if (!self->kernel_path)
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{
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g_set_error (error, G_IO_ERROR, G_IO_ERROR_FAILED,
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"Couldn't find kernel for release %s", release);
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goto out;
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if (!get_kernel_path_from_release (self, self->release, &kernel_path,
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cancellable, error))
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goto out;
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if (kernel_path == NULL)
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{
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g_set_error (error, G_IO_ERROR, G_IO_ERROR_FAILED,
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"Couldn't find kernel for release %s", self->release);
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goto out;
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}
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}
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else
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kernel_path = g_object_ref (self->kernel_path);
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add_kernel_arg = g_strconcat ("--add-kernel=", gs_file_get_path_cached (kernel_path), NULL);
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initramfs_arg = g_strconcat ("--initrd=", "/boot/initramfs-ostree-", release, ".img", NULL);
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initramfs_arg = g_strconcat ("--initrd=", "/boot/ostree/initramfs-", self->release, ".img", NULL);
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g_print ("Adding OSTree grub entry...\n");
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if (!gs_subprocess_simple_run_sync (NULL, GS_SUBPROCESS_STREAM_DISPOSITION_NULL,
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cancellable, error,
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@ -281,54 +398,70 @@ ot_admin_builtin_update_kernel (int argc, char **argv, GFile *ostree_dir, GError
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OtAdminUpdateKernel self_data;
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OtAdminUpdateKernel *self = &self_data;
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gboolean ret = FALSE;
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const char *deploy_path = NULL;
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struct utsname utsname;
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const char *release;
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__attribute__((unused)) GCancellable *cancellable = NULL;
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GCancellable *cancellable = NULL;
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memset (self, 0, sizeof (*self));
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context = g_option_context_new ("[OSTREE_REVISION [KERNEL_RELEASE]] - Update kernel and regenerate initial ramfs");
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context = g_option_context_new ("[OSTREE_REVISION - Update kernel and regenerate initial ramfs");
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g_option_context_add_main_entries (context, options, NULL);
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if (!g_option_context_parse (context, &argc, &argv, error))
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goto out;
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if (argc > 1)
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deploy_path = argv[1];
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self->deploy_path = argv[1];
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else
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deploy_path = "current";
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self->deploy_path = "current";
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(void) uname (&utsname);
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if (strcmp (utsname.sysname, "Linux") != 0)
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if (opt_release && !opt_host_kernel)
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{
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g_set_error (error, G_IO_ERROR, G_IO_ERROR_FAILED,
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"Unsupported machine %s", utsname.sysname);
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g_set_error_literal (error, G_IO_ERROR, G_IO_ERROR_FAILED,
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"May not specify a kernel release without --host-kernel");
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goto out;
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}
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else if (!opt_release && opt_host_kernel)
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{
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(void) uname (&utsname);
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release = utsname.release;
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if (argc > 2)
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release = argv[2];
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if (strcmp (utsname.sysname, "Linux") != 0)
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{
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g_set_error (error, G_IO_ERROR, G_IO_ERROR_FAILED,
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"Unsupported machine %s", utsname.sysname);
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goto out;
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}
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opt_release = utsname.release;
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}
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self->ostree_dir = g_object_ref (ostree_dir);
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if (!copy_modules (self, release, cancellable, error))
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goto out;
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if (opt_host_kernel)
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{
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if (!copy_modules (self, opt_release, cancellable, error))
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goto out;
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self->release = g_strdup (opt_release);
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}
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else
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{
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if (!setup_kernel (self, cancellable, error))
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goto out;
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}
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if (!opt_modules_only)
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{
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if (!update_initramfs (self, release, deploy_path, cancellable, error))
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if (!update_initramfs (self, cancellable, error))
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goto out;
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if (!update_grub (self, release, cancellable, error))
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if (!update_grub (self, cancellable, error))
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goto out;
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}
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ret = TRUE;
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out:
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g_clear_object (&self->ostree_dir);
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g_clear_object (&self->kernel_path);
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g_free (self->release);
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if (context)
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g_option_context_free (context);
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return ret;
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|
27
src/triggers/triggers.d/0005depmod.trigger
Executable file
27
src/triggers/triggers.d/0005depmod.trigger
Executable file
@ -0,0 +1,27 @@
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#!/bin/bash
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# Post-installation hook for kernel modules. -*- mode: sh -*-
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#
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# Written by Colin Walters <walters@verbum.org>
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#
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# This library is free software; you can redistribute it and/or
|
||||
# modify it under the terms of the GNU Lesser General Public
|
||||
# License as published by the Free Software Foundation; either
|
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# version 2 of the License, or (at your option) any later version.
|
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#
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# This library is distributed in the hope that it will be useful,
|
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
# Lesser General Public License for more details.
|
||||
#
|
||||
# You should have received a copy of the GNU Lesser General Public
|
||||
# License along with this library; if not, write to the
|
||||
# Free Software Foundation, Inc., 59 Temple Place - Suite 330,
|
||||
# Boston, MA 02111-1307, USA.
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|
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set -e
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if test -x "$(which depmod 2>/dev/null)"; then
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for d in /usr/lib/modules/*; do
|
||||
if test -d "$d"; then depmod $(basename "$d"); fi
|
||||
done
|
||||
fi
|
Loading…
Reference in New Issue
Block a user