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Diffstat (limited to 'docs/system/removed-features.rst')
| -rw-r--r-- | docs/system/removed-features.rst | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/docs/system/removed-features.rst b/docs/system/removed-features.rst index 2b21bd39ab..b64ea55194 100644 --- a/docs/system/removed-features.rst +++ b/docs/system/removed-features.rst @@ -491,6 +491,18 @@ topologies described with -smp include all possible cpus, i.e. The ``enforce-config-section`` property was replaced by the ``-global migration.send-configuration={on|off}`` option. +qemu-img amend to adjust backing file (removed in 6.1) +'''''''''''''''''''''''''''''''''''''''''''''''''''''' + +The use of ``qemu-img amend`` to modify the name or format of a qcow2 +backing image was never fully documented or tested, and interferes +with other amend operations that need access to the original backing +image (such as deciding whether a v3 zero cluster may be left +unallocated when converting to a v2 image). Any changes to the +backing chain should be performed with ``qemu-img rebase -u`` either +before or after the remaining changes being performed by amend, as +appropriate. + Block devices ------------- |