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busybox-initramfs: init: add support for NBD mounts

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Example kernel command parameter: boot=NBD=192.168.1.1:2000

Signed-off-by: Alain Kalker <a.c.kalker@gmail.com>
This commit is contained in:
Alain Kalker 2012-03-19 17:51:26 +01:00
parent a3f3a62767
commit ac1d0eb0d9
1 changed files with 19 additions and 0 deletions
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19
packages/initramfs/sysutils/busybox-initramfs/scripts/init
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@ -28,6 +28,8 @@ IMAGE_SYSTEM="SYSTEM"
IMAGE_KERNEL="KERNEL" IMAGE_KERNEL="KERNEL"
REBOOT="0" REBOOT="0"
NBD_DEVS="0"
# mount all needed special filesystems # mount all needed special filesystems
/bin/busybox mount -t devtmpfs none /dev /bin/busybox mount -t devtmpfs none /dev
/bin/busybox mount -t proc none /proc /bin/busybox mount -t proc none /proc
@ -123,6 +125,20 @@ REBOOT="0"
[ "$ERR_ENV" -ne "0" ] && error "mount_common" "Could not mount $1" [ "$ERR_ENV" -ne "0" ] && error "mount_common" "Could not mount $1"
} }
mount_nbd() {
# Mount NBD device
NBD_SERVER="${1%%:*}"
NBD_PORT="${1#*:}"
NBD_DEV="/dev/nbd$NBD_DEVS"
$IONICE /bin/busybox nbd-client $NBD_SERVER $NBD_PORT $NBD_DEV > /dev/null 2>&1 || \
error "nbd-client" "Could not connect to NBD server $1"
mount_common "$NBD_DEV" "$2" "$3" "$4"
NBD_DEVS=$(( ${NBD_DEVS} + 1 ))
}
mount_part() { mount_part() {
# Mount a local or network filesystem # Mount a local or network filesystem
# $1:[TYPE=]target, $2:mountpoint, $3:mount options, [$4:fs type] # $1:[TYPE=]target, $2:mountpoint, $3:mount options, [$4:fs type]
@ -134,6 +150,9 @@ REBOOT="0"
MOUNT_CMD="mount_common" MOUNT_CMD="mount_common"
MOUNT_TARGET="$1" MOUNT_TARGET="$1"
;; ;;
NBD=*)
MOUNT_CMD="mount_nbd"
;;
*) *)
error "mount_part" "Unknown filesystem $1" error "mount_part" "Unknown filesystem $1"
;; ;;