sonic-buildimage/files/initramfs-tools/union-mount.j2
Samuel Angebault 89a695a5e7 [union-mount] Rescan dev if root partition disapear (#298)
On some platforms after the initramfs init scripts have mounted the root device its
block device disapear from /dev. The union-mount script therefore can't mount the
root device over the aufs. If this case happen, issue a rescan of the devices to
repopulate the /dev filesystem.
2017-02-15 23:18:02 -08:00

21 lines
694 B
Django/Jinja

#!/bin/sh -e
case $1 in
prereqs)
exit 0
;;
esac
## Mount the aufs file system: rw layer over squashfs
mkdir -p ${rootmnt}/host/rw
mount -n -o dirs=${rootmnt}/host/rw:${rootmnt}=ro -t aufs root-aufs ${rootmnt}
## Check if the root block device is still there
[ -b ${ROOT} ] || mdev -s
## Mount the raw partition again
mount ${ROOT} ${rootmnt}/host
## Mount the working directory of docker engine in the raw partition, bypass the aufs
mkdir -p ${rootmnt}/var/lib/docker
mount --bind ${rootmnt}/host/{{ DOCKERFS_DIR }} ${rootmnt}/var/lib/docker
## Mount the boot directory in the raw partition, bypass the aufs
mkdir -p ${rootmnt}/boot
mount --bind ${rootmnt}/host/boot ${rootmnt}/boot