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** Changed in: linux (Ubuntu)
Status: New => Incomplete
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https://bugs.launchpad.net/bugs/1705493
Title:
[4.4][backport] Multiple partitions are not supported on a bcache
device
Status in linux package in Ubuntu:
Triaged
Status in linux source package in Xenial:
Triaged
Bug description:
Support for adding partitions on bcache devices only landed in 4.10:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b8c0d911ac5285e6be8967713271a51bdc5a936a
Although it is a small change, it is not backported to any of the
xenial kernels and it only exists naturally in 4.10.
➜ ubuntu-xenial git:(master) git tag
--contains=b8c0d911ac5285e6be8967713271a51bdc5a936a
Ubuntu-hwe-4.10.0-13.15_16.04.2
Ubuntu-hwe-4.10.0-14.16_16.04.1
Ubuntu-hwe-4.10.0-19.21_16.04.1
Ubuntu-hwe-4.10.0-20.22_16.04.1
Ubuntu-hwe-4.10.0-21.23_16.04.1
Ubuntu-hwe-4.10.0-22.24_16.04.1
Ubuntu-hwe-4.10.0-25.29_16.04.1
Ubuntu-hwe-4.10.0-26.30_16.04.1
Ubuntu-hwe-4.10.0-28.32_16.04.1
Ubuntu-hwe-edge-4.10.0-9.11_16.04.2
Ubuntu-lts-4.10.0-10.12_16.04.1
Ubuntu-lts-4.10.0-11.13_16.04.1
Ubuntu-lts-4.10.0-12.14_16.04.1
Ubuntu-lts-4.10.0-13.15_16.04.1
Ubuntu-lts-4.10.0-7.9_16.04.1
Ubuntu-lts-4.10.0-8.10_16.04.1
Ubuntu-lts-4.10.0-9.11_16.04.1
Ubuntu-lts-4.10.0-9.11_16.04.2
This will prevent usage of multiple partitions on the same device
which is the case when data and journal are collocated.
Also, the lack of that feature prevents dmcrypt usage as multiple
partitions are created on a device in this case.
Could that be backported to the 4.4 kernel?
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