diff options
author | cshore <cshore@3c298f89-4303-0410-b956-a3cf2f4a3e73> | 2011-03-27 06:40:51 +0000 |
---|---|---|
committer | cshore <cshore@3c298f89-4303-0410-b956-a3cf2f4a3e73> | 2011-03-27 06:40:51 +0000 |
commit | 3e7449974c1f5ceaa81d412bd843f8c16a53affa (patch) | |
tree | d29172975565825b660caeecebf697d1404fac1e /package/block-mount/files/50_determine_usb_root | |
parent | b42622d831fe2a46f4a70efd145e6ccfef8a0fea (diff) |
[package] block-mount: Merged block-mount, block-extroot, and block-hotplug into a single binary package called block-mount.
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@26314 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'package/block-mount/files/50_determine_usb_root')
-rw-r--r-- | package/block-mount/files/50_determine_usb_root | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/package/block-mount/files/50_determine_usb_root b/package/block-mount/files/50_determine_usb_root new file mode 100644 index 000000000..8c5841e32 --- /dev/null +++ b/package/block-mount/files/50_determine_usb_root @@ -0,0 +1,57 @@ +#!/bin/sh +# Copyright (C) 2010 Vertical Communications +# This is free software, licensed under the GNU General Public License v2. +# See /LICENSE for more information. + + +determine_external_root() { + pi_include /lib/functions/extmount.sh + pi_include /lib/functions/mount.sh + + 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" = "/tmp/overlay" ] && [ -r "/tmp/overlay/etc/config/fstab" ]; then + UCI_CONFIG_DIR="/tmp/overlay/etc/config" + ER_IS_SQUASHFS=true + ER_OVERLAY_PREFIX="/tmp/overlay" + 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 $extroot_settle_time + } + config_load fstab + config_foreach config_mount_by_section mount 1 + ER_OVERLAY_ROM="/no-extroot" + + [ "$rootfs_found" = "1" ] && grep -q ' /overlay ' /proc/mounts && { + pi_extroot_mount_success=true + pi_mount_skip_next=false + ER_OVERLAY_ROM="/overlay" + } + [ "$rootfs_found" = "1" ] && grep -q ' /rom ' /proc/mounts && { + pi_extroot_mount_success=true + pi_mount_skip_next=false + ER_OVERLAY_ROM="/rom" + } + } + UCI_CONFIG_DIR="$OLD_UCI_CONFIG_DIR" +} + +boot_hook_add preinit_mount_root determine_external_root + |