Test :: focal
$ lsb_release -cs focal
$ uname -rv 5.4.0-9-generic #12-Ubuntu SMP Mon Dec 16 22:34:19 UTC 2019
$ dpkg -s bcache-tools xfsprogs | grep -i version Version: 1.0.8-3 Version: 5.2.1-1ubuntu1
$ 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............| 00008000 fe ed ba be 00 00 00 01 00 00 00 02 00 00 02 00 |................|
Before:
$ dpkg -s libblkid1 | grep -i version Version: 2.34-0.1ubuntu4
$ sudo blkid -o udev -p $BACKING_DEV ID_FS_AMBIVALENT=other:bcache other:xfs_external_log
After:
$ dpkg -s libblkid1 | grep -i version Version: 2.34-0.1ubuntu5
$ sudo blkid -o udev -p $BACKING_DEV ID_FS_UUID=dc12092f-0bf6-48f7-913c-6249c8506dab ID_FS_UUID_ENC=dc12092f-0bf6-48f7-913c-6249c8506dab ID_FS_TYPE=bcache ID_FS_USAGE=other
Test :: focal
$ lsb_release -cs
focal
$ uname -rv
5.4.0-9-generic #12-Ubuntu SMP Mon Dec 16 22:34:19 UTC 2019
$ dpkg -s bcache-tools xfsprogs | grep -i version
Version: 1.0.8-3
Version: 5.2.1-1ubuntu1
$ 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............|
00008000 fe ed ba be 00 00 00 01 00 00 00 02 00 00 02 00 |................|
Before:
$ dpkg -s libblkid1 | grep -i version
Version: 2.34-0.1ubuntu4
$ 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: 2.34-0.1ubuntu5
$ sudo blkid -o udev -p $BACKING_DEV dc12092f- 0bf6-48f7- 913c-6249c8506d ab ENC=dc12092f- 0bf6-48f7- 913c-6249c8506d ab
ID_FS_UUID=
ID_FS_UUID_
ID_FS_TYPE=bcache
ID_FS_USAGE=other