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Support TRIM/discard mode when installing to SSD

Feature state

openSUSE Distribution
New

Description

While installing Tumbleweed (and Leap 42.2) with an encrypted disk, there is no way to enable TRIM/discard mode the for the underlying SSD. I *can* specify the "discard" mount option in the expert partitioner mode, but I cannot add the necessary "--allow-discards" option to the call to "cryptsetup" anywhere. Only *after* booting the newly installed system it's possible to enable that feature, and even then I have to manually edit /etc/crypttab to do it.

User benefit:

TRIM mode allows modern SSDs to operate faster than they can without it.

There are security implications when combined with LUKS encryption, but having that ability as an optional feature sure is desirable (and many other distributions support it, too).

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Last change: 3 months ago
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