Test :: bionic
$ lsb_release -cs bionic
$ uname -rv 4.15.0-72-generic #81-Ubuntu SMP Tue Nov 26 12:20:02 UTC 2019
$ dpkg -s bcache-tools xfsprogs | grep -i version Version: 1.0.8-2build1 Version: 4.9.0+nmu1ubuntu2
$ sudo hexdump -C $BACKING_DEV | grep -m2 -e XFSB -e 'fe ed ba be' 00002000 58 46 53 42 00 00 10 00 00 00 00 00 00 03 f0 00 |XFSB............| 00007000 fe ed ba be 00 00 00 01 00 00 00 02 00 00 02 00 |................|
Before:
$ dpkg -s libblkid1 | grep -i version Version: 2.31.1-0.4ubuntu3.4
$ sudo blkid -o udev -p $BACKING_DEV ID_FS_AMBIVALENT=other:bcache other:xfs_external_log
After:
$ dpkg -s libblkid1 | grep -i version Version: 2.31.1-0.4ubuntu3.5
$ sudo blkid -o udev -p $BACKING_DEV ID_FS_UUID=46a3afa8-2c87-41b0-9c35-b766e0dddd6c ID_FS_UUID_ENC=46a3afa8-2c87-41b0-9c35-b766e0dddd6c ID_FS_TYPE=bcache ID_FS_USAGE=other
Test :: bionic
$ lsb_release -cs
bionic
$ uname -rv
4.15.0-72-generic #81-Ubuntu SMP Tue Nov 26 12:20:02 UTC 2019
$ dpkg -s bcache-tools xfsprogs | grep -i version
Version: 1.0.8-2build1
Version: 4.9.0+nmu1ubuntu2
$ sudo hexdump -C $BACKING_DEV | grep -m2 -e XFSB -e 'fe ed ba be'
00002000 58 46 53 42 00 00 10 00 00 00 00 00 00 03 f0 00 |XFSB............|
00007000 fe ed ba be 00 00 00 01 00 00 00 02 00 00 02 00 |................|
Before:
$ dpkg -s libblkid1 | grep -i version
Version: 2.31.1-0.4ubuntu3.4
$ sudo blkid -o udev -p $BACKING_DEV T=other: bcache other:xfs_ external_ log
ID_FS_AMBIVALEN
After:
$ dpkg -s libblkid1 | grep -i version
Version: 2.31.1-0.4ubuntu3.5
$ sudo blkid -o udev -p $BACKING_DEV 46a3afa8- 2c87-41b0- 9c35-b766e0dddd 6c ENC=46a3afa8- 2c87-41b0- 9c35-b766e0dddd 6c
ID_FS_UUID=
ID_FS_UUID_
ID_FS_TYPE=bcache
ID_FS_USAGE=other