/* * Prepare the namespace - decide what/where to mount, load ramdisks, etc. */ void __init prepare_namespace(void) { int is_floppy;
if (root_delay) { printk(KERN_INFO "Waiting %d sec before mounting root device...\n", root_delay); ssleep(root_delay); }
/* * wait for the known devices to complete their probing * * Note: this is a potential source of long boot delays. * For example, it is not atypical to wait 5 seconds here * for the touchpad of a laptop to initialize. */ wait_for_device_probe();
md_run_setup(); dm_run_setup();
if (saved_root_name[0]) { root_device_name = saved_root_name; if (!strncmp(root_device_name, "mtd", 3) || !strncmp(root_device_name, "ubi", 3)) { mount_block_root(root_device_name, root_mountflags); goto out; } ROOT_DEV = name_to_dev_t(root_device_name); if (strncmp(root_device_name, "/dev/", 5) == 0) root_device_name += 5; }
if (initrd_load()) goto out;
/* wait for any asynchronous scanning to complete */ if ((ROOT_DEV == 0) && root_wait) { printk(KERN_INFO "Waiting for root device %s...\n", saved_root_name); while (driver_probe_done() != 0 || (ROOT_DEV = name_to_dev_t(saved_root_name)) == 0) msleep(100); async_synchronize_full(); }
is_floppy = MAJOR(ROOT_DEV) == FLOPPY_MAJOR;
if (is_floppy && rd_doload && rd_load_disk(0)) ROOT_DEV = Root_RAM0;
mount_root(); out: devtmpfs_mount("dev"); sys_mount(".", "/", NULL, MS_MOVE, NULL); sys_chroot("."); } --------------------- 作者：wmzjzwlzs2 来源： 原文：https://blog.csdn.net/wmzjzwlzs2/article/details/70144892 版权声明：本文为博主原创文章，转载请附上博文链接！
