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| author | Felix Fietkau <nbd@openwrt.org> | 2011-08-11 20:32:57 +0000 |
|---|---|---|
| committer | Felix Fietkau <nbd@openwrt.org> | 2011-08-11 20:32:57 +0000 |
| commit | 5331e1bdc4005f5afcf1bbf1c0b31aa5ed73186e (patch) | |
| tree | 01552b9642552a7e8a4c80936d667ce18b0888d1 /target/linux/generic/base-files | |
| parent | c300dae78ba77b11e65634512f59bf7fbaad0dc2 (diff) | |
| download | upstream-5331e1bdc4005f5afcf1bbf1c0b31aa5ed73186e.tar.gz upstream-5331e1bdc4005f5afcf1bbf1c0b31aa5ed73186e.tar.bz2 upstream-5331e1bdc4005f5afcf1bbf1c0b31aa5ed73186e.zip | |
initramfs: allow preinit to enable switching from initramfs to tmpfs to allow overlayfs to be mounted on top of it
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@27960 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'target/linux/generic/base-files')
| -rwxr-xr-x | target/linux/generic/base-files/init | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/target/linux/generic/base-files/init b/target/linux/generic/base-files/init index 9e8ba7c5eb..5e4fbaec36 100755 --- a/target/linux/generic/base-files/init +++ b/target/linux/generic/base-files/init @@ -8,6 +8,19 @@ INITRAMFS=1 set_state init echo "- init -" +[ -n "$SWITCH_ROOT_TMPFS" ] && { + mount none /mnt -t tmpfs + ( cd /; find -xdev -type d ) | ( cd /mnt; xargs mkdir -p ) + find / \! -type d -xdev | tar -cT /proc/self/fd/0 | tar -xC /mnt + mkdir /mnt/proc /mnt/dev /mnt/tmp /mnt/sys + mount -o move /proc /mnt/proc + mount -o move /dev /mnt/dev + mount -o move /tmp /mnt/tmp + mount -o move /sys /mnt/sys + rm -rf /proc /dev /tmp /sys + exec switch_root -c /dev/console /mnt /sbin/init +} + # if we have no root parameter, just go to running from ramfs [ -z $rootfs ] && { export NOMOUNT="No Root" |