diff options
Diffstat (limited to 'package/block-extroot/files/50_determine_usb_root')
| -rw-r--r-- | package/block-extroot/files/50_determine_usb_root | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/package/block-extroot/files/50_determine_usb_root b/package/block-extroot/files/50_determine_usb_root new file mode 100644 index 0000000000..1e5f153b6a --- /dev/null +++ b/package/block-extroot/files/50_determine_usb_root @@ -0,0 +1,50 @@ +#!/bin/sh +# Copyright (C) 2010 Vertical Communications +# This is free software, licensed under the GNU General Public License v2. +# See /LICENSE for more information. + + +. /etc/functions.sh +. /lib/functions/extmount.sh +. /lib/functions/mount.sh + +determine_external_root() { + local OLD_UCI_CONFIG_DIR="$UCI_CONFIG_DIR" + set_jffs_mp + determine_root_device + + # extroot requires extroot and fstab config files, therefore + # we assume configuration is incomplete and not to be used if either of them + # is missing (for jffs versions of these files on squashfs image) + if [ "$jffs" = "/jffs" ] && [ -r "/jffs/etc/config/fstab" ]; then + UCI_CONFIG_DIR="/jffs/etc/config" + ER_IS_SQUASHFS=true + fi + + # For squashfs on firstboot root_device will be tmpfs for the ramoverlay, + # unless there is a saved config, in which case it will be /dev/root, + # however in the case of a saved config, it won't be restored until after + # this script, so there won't be a config on the first boot after + # flashing a squashfs-based filesystem + # For ext2, ramdisk, or jffs2 root filesystems root_device is /dev/root + # For squashfs after firstboot, root filesystem is /dev/root + # We only use the config from the root or jffs if the root_device is + # /dev/root + [ "$root_device" = "/dev/root" ] && { + er_load_modules + [ -n "$extroot_settle_time" ] && [ "$extroot_settle_time" -gt 0 ] && { + sleep $extroot_settle_time + } + config_load fstab + config_foreach config_mount_by_section mount 1 + + [ "$rootfs_found" = "1" ] && grep -q /overlay /proc/mounts && { + pi_extroot_mount_success=true + pi_mount_skip_next=false + } + } + UCI_CONFIG_DIR="$OLD_UCI_CONFIG_DIR" +} + +boot_hook_add preinit_mount_root determine_external_root + |