This bug was fixed in the package grml2usb - 0.18.3ubuntu0.1
--------------- grml2usb (0.18.3ubuntu0.1) groovy; urgency=medium
* [272b66e] Fix race condition with blockdev/BLKRRPART due to lack of fsync. LP: #1905452.
-- dann frazier <email address hidden> Tue, 24 Nov 2020 11:58:37 -0700
This bug was fixed in the package grml2usb - 0.18.3ubuntu0.1
---------------
grml2usb (0.18.3ubuntu0.1) groovy; urgency=medium
* [272b66e] Fix race condition with blockdev/BLKRRPART due to lack
of fsync. LP: #1905452.
-- dann frazier <email address hidden> Tue, 24 Nov 2020 11:58:37 -0700