mirror of
git://git.yoctoproject.org/poky.git
synced 2025-08-22 00:42:05 +02:00
3061fd5cef
The default return value from subprocess.check_output is an encoded byte. The applied fix will decode the value to a string. (From OE-Core rev: 046769fa952a511865c416b80d10af6287147fb7) Signed-off-by: Pawel Zalewski <pzalewski@thegoodpenguin.co.uk> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
31 lines
1.1 KiB
Plaintext
31 lines
1.1 KiB
Plaintext
#
|
|
# Copyright OpenEmbedded Contributors
|
|
#
|
|
# SPDX-License-Identifier: MIT
|
|
#
|
|
|
|
# Extract UUID from ${ROOTFS}, which must have been built
|
|
# by the time that this function gets called. Only works
|
|
# on ext file systems and depends on tune2fs.
|
|
def get_rootfs_uuid(d):
|
|
import subprocess
|
|
rootfs = d.getVar('ROOTFS')
|
|
output = subprocess.check_output(['tune2fs', '-l', rootfs], text=True)
|
|
for line in output.split('\n'):
|
|
if line.startswith('Filesystem UUID:'):
|
|
uuid = line.split()[-1]
|
|
bb.note('UUID of %s: %s' % (rootfs, uuid))
|
|
return uuid
|
|
bb.fatal('Could not determine filesystem UUID of %s' % rootfs)
|
|
|
|
# Replace the special <<uuid-of-rootfs>> inside a string (like the
|
|
# root= APPEND string in a syslinux.cfg or systemd-boot entry) with the
|
|
# actual UUID of the rootfs. Does nothing if the special string
|
|
# is not used.
|
|
def replace_rootfs_uuid(d, string):
|
|
UUID_PLACEHOLDER = '<<uuid-of-rootfs>>'
|
|
if UUID_PLACEHOLDER in string:
|
|
uuid = get_rootfs_uuid(d)
|
|
string = string.replace(UUID_PLACEHOLDER, uuid)
|
|
return string
|