def get_rootfs_size(self, actual_rootfs_size=0):
"""
Calculate the required size of rootfs taking into consideration
--size/--fixed-size flags as well as overhead and extra space, as
specified in kickstart file. Raises an error if the
`actual_rootfs_size` is larger than fixed-size rootfs.
"""
if self.fixed_size:
rootfs_size = self.fixed_size
if actual_rootfs_size > rootfs_size:
msger.error("Actual rootfs size (%d kB) is larger than allowed size %d kB" \
%(actual_rootfs_size, rootfs_size))
else:
extra_blocks = self.get_extra_block_count(actual_rootfs_size)
if extra_blocks < self.extra_space:
extra_blocks = self.extra_space
rootfs_size = actual_rootfs_size + extra_blocks
rootfs_size *= self.overhead_factor
msger.debug("Added %d extra blocks to %s to get to %d total blocks" % \
(extra_blocks, self.mountpoint, rootfs_size))
return rootfs_size
def prepare_rootfs_btrfs(self, rootfs, oe_builddir, rootfs_dir,
native_sysroot, pseudo):
"""
Prepare content for a btrfs rootfs partition.
Currently handles ext2/3/4 and btrfs.
"""
du_cmd = "du -ks %s" % rootfs_dir
out = exec_cmd(du_cmd)
actual_rootfs_size = int(out.split()[0])
extra_blocks = self.get_extra_block_count(actual_rootfs_size)
if extra_blocks < self.extra_space:
extra_blocks = self.extra_space
rootfs_size = actual_rootfs_size + extra_blocks
rootfs_size *= self.overhead_factor
msger.debug("Added %d extra blocks to %s to get to %d total blocks" % \
(extra_blocks, self.mountpoint, rootfs_size))
dd_cmd = "dd if=/dev/zero of=%s bs=1024 seek=%d count=0 bs=1k" % \
(rootfs, rootfs_size)
exec_cmd(dd_cmd)
label_str = ""
if self.label:
label_str = "-L %s" % self.label
mkfs_cmd = "mkfs.%s -b %d -r %s %s %s" % \
(self.fstype, rootfs_size * 1024, rootfs_dir, label_str, rootfs)
exec_native_cmd(mkfs_cmd, native_sysroot, pseudo=pseudo)
def prepare_rootfs_btrfs(self, rootfs, oe_builddir, rootfs_dir,
native_sysroot, pseudo):
"""
Prepare content for a btrfs rootfs partition.
Currently handles ext2/3/4 and btrfs.
"""
du_cmd = "du -ks %s" % rootfs_dir
out = exec_cmd(du_cmd)
actual_rootfs_size = int(out.split()[0])
extra_blocks = self.get_extra_block_count(actual_rootfs_size)
if extra_blocks < self.extra_space:
extra_blocks = self.extra_space
rootfs_size = actual_rootfs_size + extra_blocks
rootfs_size *= self.overhead_factor
msger.debug("Added %d extra blocks to %s to get to %d total blocks" % \
(extra_blocks, self.mountpoint, rootfs_size))
exec_cmd("truncate %s -s %d" % (rootfs, rootfs_size * 1024))
label_str = ""
if self.label:
label_str = "-L %s" % self.label
mkfs_cmd = "mkfs.%s -b %d -r %s %s %s" % \
(self.fstype, rootfs_size * 1024, rootfs_dir, label_str, rootfs)
exec_native_cmd(mkfs_cmd, native_sysroot, pseudo=pseudo)
def prepare_rootfs_vfat(self, rootfs, oe_builddir, rootfs_dir,
native_sysroot, pseudo):
"""
Prepare content for a vfat rootfs partition.
"""
du_cmd = "du -bks %s" % rootfs_dir
out = exec_cmd(du_cmd)
blocks = int(out.split()[0])
extra_blocks = self.get_extra_block_count(blocks)
if extra_blocks < self.extra_space:
extra_blocks = self.extra_space
blocks += extra_blocks
msger.debug("Added %d extra blocks to %s to get to %d total blocks" % \
(extra_blocks, self.mountpoint, blocks))
label_str = "-n boot"
if self.label:
label_str = "-n %s" % self.label
dosfs_cmd = "mkdosfs %s -S 512 -C %s %d" % (label_str, rootfs, blocks)
exec_native_cmd(dosfs_cmd, native_sysroot)
mcopy_cmd = "mcopy -i %s -s %s/* ::/" % (rootfs, rootfs_dir)
exec_native_cmd(mcopy_cmd, native_sysroot)
chmod_cmd = "chmod 644 %s" % rootfs
exec_cmd(chmod_cmd)
def get_rootfs_size(self, actual_rootfs_size=0):
"""
Calculate the required size of rootfs taking into consideration
--size/--fixed-size flags as well as overhead and extra space, as
specified in kickstart file. Raises an error if the
`actual_rootfs_size` is larger than fixed-size rootfs.
"""
if self.fixed_size:
rootfs_size = self.fixed_size
if actual_rootfs_size > rootfs_size:
msger.error("Actual rootfs size (%d kB) is larger than allowed size %d kB" \
%(actual_rootfs_size, rootfs_size))
else:
extra_blocks = self.get_extra_block_count(actual_rootfs_size)
if extra_blocks < self.extra_space:
extra_blocks = self.extra_space
rootfs_size = actual_rootfs_size + extra_blocks
rootfs_size *= self.overhead_factor
msger.debug("Added %d extra blocks to %s to get to %d total blocks" % \
(extra_blocks, self.mountpoint, rootfs_size))
return rootfs_size
def prepare_rootfs_ext(self, rootfs, oe_builddir, rootfs_dir,
native_sysroot, pseudo):
"""
Prepare content for an ext2/3/4 rootfs partition.
"""
du_cmd = "du -ks %s" % rootfs_dir
out = exec_cmd(du_cmd)
actual_rootfs_size = int(out.split()[0])
extra_blocks = self.get_extra_block_count(actual_rootfs_size)
if extra_blocks < self.extra_space:
extra_blocks = self.extra_space
rootfs_size = actual_rootfs_size + extra_blocks
rootfs_size *= self.overhead_factor
msger.debug("Added %d extra blocks to %s to get to %d total blocks" % \
(extra_blocks, self.mountpoint, rootfs_size))
exec_cmd("truncate %s -s %d" % (rootfs, rootfs_size * 1024))
extra_imagecmd = "-i 8192"
label_str = ""
if self.label:
label_str = "-L %s" % self.label
mkfs_cmd = "mkfs.%s -F %s %s %s -d %s" % \
(self.fstype, extra_imagecmd, rootfs, label_str, rootfs_dir)
exec_native_cmd(mkfs_cmd, native_sysroot, pseudo=pseudo)
mkfs_cmd = "fsck.%s -pvfD %s || [ $? -le 3 ]" % (self.fstype, rootfs)
exec_native_cmd(mkfs_cmd, native_sysroot, pseudo=pseudo)
def prepare_rootfs_vfat(self, rootfs, oe_builddir, rootfs_dir,
native_sysroot, pseudo):
"""
Prepare content for a vfat rootfs partition.
"""
du_cmd = "du -bks %s" % rootfs_dir
out = exec_cmd(du_cmd)
blocks = int(out.split()[0])
extra_blocks = self.get_extra_block_count(blocks)
if extra_blocks < self.extra_space:
extra_blocks = self.extra_space
blocks += extra_blocks
msger.debug("Added %d extra blocks to %s to get to %d total blocks" % \
(extra_blocks, self.mountpoint, blocks))
label_str = "-n boot"
if self.label:
label_str = "-n %s" % self.label
dosfs_cmd = "mkdosfs %s -S 512 -C %s %d" % (label_str, rootfs, blocks)
exec_native_cmd(dosfs_cmd, native_sysroot)
mcopy_cmd = "mcopy -i %s -s %s/* ::/" % (rootfs, rootfs_dir)
exec_native_cmd(mcopy_cmd, native_sysroot)
chmod_cmd = "chmod 644 %s" % rootfs
exec_cmd(chmod_cmd)
def prepare_rootfs_ext(self, rootfs, oe_builddir, rootfs_dir,
native_sysroot, pseudo):
"""
Prepare content for an ext2/3/4 rootfs partition.
"""
du_cmd = "du -ks %s" % rootfs_dir
out = exec_cmd(du_cmd)
actual_rootfs_size = int(out.split()[0])
extra_blocks = self.get_extra_block_count(actual_rootfs_size)
if extra_blocks < self.extra_space:
extra_blocks = self.extra_space
rootfs_size = actual_rootfs_size + extra_blocks
rootfs_size *= self.overhead_factor
msger.debug("Added %d extra blocks to %s to get to %d total blocks" % \
(extra_blocks, self.mountpoint, rootfs_size))
dd_cmd = "dd if=/dev/zero of=%s bs=1024 seek=%d count=0 bs=1k" % \
(rootfs, rootfs_size)
exec_cmd(dd_cmd)
extra_imagecmd = "-i 8192"
label_str = ""
if self.label:
label_str = "-L %s" % self.label
mkfs_cmd = "mkfs.%s -F %s %s %s -d %s" % \
(self.fstype, extra_imagecmd, rootfs, label_str, rootfs_dir)
exec_native_cmd(mkfs_cmd, native_sysroot, pseudo=pseudo)
def prepare_rootfs_ext(self, rootfs, oe_builddir, rootfs_dir,
native_sysroot, pseudo):
"""
Prepare content for an ext2/3/4 rootfs partition.
"""
du_cmd = "du -ks %s" % rootfs_dir
out = exec_cmd(du_cmd)
actual_rootfs_size = int(out.split()[0])
extra_blocks = self.get_extra_block_count(actual_rootfs_size)
if extra_blocks < self.extra_space:
extra_blocks = self.extra_space
rootfs_size = actual_rootfs_size + extra_blocks
rootfs_size *= self.overhead_factor
msger.debug("Added %d extra blocks to %s to get to %d total blocks" % \
(extra_blocks, self.mountpoint, rootfs_size))
with open(rootfs, 'w') as sparse:
os.ftruncate(sparse.fileno(), rootfs_size * 1024)
extra_imagecmd = "-i 8192"
label_str = ""
if self.label:
label_str = "-L %s" % self.label
mkfs_cmd = "mkfs.%s -F %s %s %s -d %s" % \
(self.fstype, extra_imagecmd, rootfs, label_str, rootfs_dir)
exec_native_cmd(mkfs_cmd, native_sysroot, pseudo=pseudo)
def get_extra_block_count(self, current_blocks):
"""
The --size param is reflected in self.size (in kB), and we already
have current_blocks (1k) blocks, calculate and return the
number of (1k) blocks we need to add to get to --size, 0 if
we're already there or beyond.
"""
msger.debug("Requested partition size for %s: %d" % (self.mountpoint, self.size))
if not self.size:
return 0
requested_blocks = self.size
msger.debug("Requested blocks %d, current_blocks %d" % (requested_blocks, current_blocks))
if requested_blocks > current_blocks:
return requested_blocks - current_blocks
else:
return 0
def get_extra_block_count(self, current_blocks):
"""
The --size param is reflected in self.size (in kB), and we already
have current_blocks (1k) blocks, calculate and return the
number of (1k) blocks we need to add to get to --size, 0 if
we're already there or beyond.
"""
msger.debug("Requested partition size for %s: %d" % \
(self.mountpoint, self.size))
if not self.size:
return 0
requested_blocks = self.size
msger.debug("Requested blocks %d, current_blocks %d" % \
(requested_blocks, current_blocks))
if requested_blocks > current_blocks:
return requested_blocks - current_blocks
else:
return 0
def prepare_rootfs_vfat(self, rootfs, oe_builddir, rootfs_dir,
native_sysroot, pseudo):
"""
Prepare content for a vfat rootfs partition.
"""
du_cmd = "du -bks %s" % rootfs_dir
out = exec_cmd(du_cmd)
blocks = int(out.split()[0])
extra_blocks = self.get_extra_block_count(blocks)
if extra_blocks < self.extra_space:
extra_blocks = self.extra_space
blocks += extra_blocks
msger.debug("Added %d extra blocks to %s to get to %d total blocks" % \
(extra_blocks, self.mountpoint, blocks))
# Ensure total sectors is an integral number of sectors per
# track or mcopy will complain. Sectors are 512 bytes, and we
# generate images with 32 sectors per track. This calculation
# is done in blocks, thus the mod by 16 instead of 32. Apply
# sector count fix only when needed.
if blocks % 16 != 0:
blocks += (16 - (blocks % 16))
label_str = "-n boot"
if self.label:
label_str = "-n %s" % self.label
dosfs_cmd = "mkdosfs %s -S 512 -C %s %d" % (label_str, rootfs, blocks)
exec_native_cmd(dosfs_cmd, native_sysroot)
mcopy_cmd = "mcopy -i %s -s %s/* ::/" % (rootfs, rootfs_dir)
exec_native_cmd(mcopy_cmd, native_sysroot)
chmod_cmd = "chmod 644 %s" % rootfs
exec_cmd(chmod_cmd)
def prepare_rootfs_vfat(self, rootfs, oe_builddir, rootfs_dir,
native_sysroot, pseudo):
"""
Prepare content for a vfat rootfs partition.
"""
du_cmd = "du -bks %s" % rootfs_dir
out = exec_cmd(du_cmd)
blocks = int(out.split()[0])
extra_blocks = self.get_extra_block_count(blocks)
if extra_blocks < self.extra_space:
extra_blocks = self.extra_space
blocks += extra_blocks
msger.debug("Added %d extra blocks to %s to get to %d total blocks" % \
(extra_blocks, self.mountpoint, blocks))
# Ensure total sectors is an integral number of sectors per
# track or mcopy will complain. Sectors are 512 bytes, and we
# generate images with 32 sectors per track. This calculation
# is done in blocks, thus the mod by 16 instead of 32. Apply
# sector count fix only when needed.
if blocks % 16 != 0:
blocks += (16 - (blocks % 16))
label_str = "-n boot"
if self.label:
label_str = "-n %s" % self.label
dosfs_cmd = "mkdosfs %s -S 512 -C %s %d" % (label_str, rootfs, blocks)
exec_native_cmd(dosfs_cmd, native_sysroot)
mcopy_cmd = "mcopy -i %s -s %s/* ::/" % (rootfs, rootfs_dir)
exec_native_cmd(mcopy_cmd, native_sysroot)
chmod_cmd = "chmod 644 %s" % rootfs
exec_cmd(chmod_cmd)
