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Makefile: use losetup instead of qemu-nbd for loop mounting. 

It's more dynamic, is faster, and the newer versions support auto-creating
device nodes for partions.  So it's prefereable to qemu-nbd.
This commit is contained in:
Albert Hopkins 2014-06-11 15:59:57 +00:00
parent f79cc8a353
commit 4b01342bf1
1 changed files with 8 additions and 9 deletions
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17
Makefile
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@ -31,7 +31,6 @@ M4 = m4
EMERGE = /usr/bin/emerge --jobs=4
M4_DEFS = -D HOSTNAME=$(HOSTNAME)
M4C = $(M4) $(M4_DEFS)
NBD_DEV = /dev/nbd0
USEPKG = --usepkg --binpkg-respect-use=y
RSYNC_MIRROR = rsync://rsync.gtlib.gatech.edu/gentoo/
EMERGE_RSYNC = NO
@ -84,7 +83,7 @@ gcc_config = $(inroot) gcc-config 1
export APPLIANCE ACCEPT_KEYWORDS CHROOT EMERGE HEADLESS M4 M4C inroot
export HOSTNAME MAKEOPTS PRUNE_CRITICAL TIMEZONE USEPKG WORLD OVERLAY
unexport PKGDIR ARCH NBD_DEV
unexport PKGDIR ARCH
all: image
@ -97,10 +96,10 @@ partitions: $(RAW_IMAGE)
parted -s $(RAW_IMAGE) mkpart primary 1 $(DISK_SIZE)
parted -s $(RAW_IMAGE) set 1 boot on
qemu-nbd -c $(NBD_DEV) "`realpath $(RAW_IMAGE)`"
sleep 3
mkfs.ext4 -O sparse_super,^has_journal -L "$(APPLIANCE)"_root -m 0 $(NBD_DEV)p1
touch partitions
losetup --show --find --partscan $(RAW_IMAGE) > partitions.tmp
mv partitions.tmp partitions
sync
mkfs.ext4 -O sparse_super,^has_journal -L "$(APPLIANCE)"_root -m 0 `cat partitions`p1
mounts: stage3
@scripts/echo Creating chroot in $(CHROOT)
@ -310,7 +309,7 @@ device-map: $(RAW_IMAGE)
image: $(STAGE4_TARBALL) partitions device-map scripts/grub.shell scripts/motd.sh
@scripts/echo Installing files to $(RAW_IMAGE)
mkdir -p loop
mount -o noatime $(NBD_DEV)p1 loop
mount -o noatime `cat partitions`p1 loop
tar -Sxf $(STAGE4_TARBALL) --numeric-owner $(COPY_ARGS) -C loop
scripts/motd.sh $(EXTERNAL_KERNEL) $(VIRTIO) $(DISK_SIZE) $(SWAP_SIZE) $(UDEV) $(DASH) $(ARCH) > loop/etc/motd
ifneq ($(EXTERNAL_KERNEL),YES)
@ -318,7 +317,8 @@ ifneq ($(EXTERNAL_KERNEL),YES)
endif
umount -l loop
rmdir loop
qemu-nbd -d $(NBD_DEV)
sync
losetup --detach `cat partitions`
$(QCOW_IMAGE): image
@scripts/echo Creating $(QCOW_IMAGE)
@ -415,7 +415,6 @@ help:
@echo 'HEADLESS=YES - Build a headless (serial console) image.'
@echo 'REMOVE_PORTAGE_TREE=NO - Do not exclude the portage tree from the image'
@echo 'PKGDIR= - Directory to use/store binary packages'
@echo 'NBD_DEV=/dev/nbd0 - NBD device to use when manipulating images'
@echo 'ENABLE_SSHD=YES - Enable sshd to start automatically in the image'
@echo
@scripts/echo 'Example'