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Title: LVM2 default USE flag change |
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Author: David Seifert <soap@g.o> |
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Posted: 2022-10-30 |
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Revision: 1 |
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News-Item-Format: 2.0 |
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Display-If-Installed: sys-fs/lvm2 |
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|
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The Gentoo Base System team has recently switched from the disabling |
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"device-mapper-only" flag to the enabling "lvm" (bug #718910). |
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|
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After considering most reverse dependencies of sys-fs/lvm2, the Base System Team |
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has decided that the majority of Gentoo users are unlikely to use the LVM2 |
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components of sys-fs/lvm2, instead relying solely on it providing device-mapper |
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functionality. |
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|
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To this end, we will disable the default enabled flag "+lvm" on sys-fs/lvm2 |
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on 2023-01-01. If you do not have USE=lvm somehow globally enabled, this means |
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you will lose LVM2 (but not device-mapper!) functionality, so enable it in your |
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config if your boot configuration depends on it or if you depend on any of the |
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lvm2-* daemons. |
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|
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Furthermore, we have considered other default enabled USE flags too, and have |
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come to the conclusion that USE=+thin makes even less sense than USE=+lvm. |
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Thin-provisioned LVM volumes are an important use case in certain VM hosting |
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scenarios, but unlikely to be relevant for the large majority of Gentoo users. |
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|
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In summary: |
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- Enable USE="lvm" if you use lvm2 (but not needed for device-mapper) as described above. |
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- Enable USE="lvm thin" if you use thin as described above. |
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- If you don't know what LVM2 is, you don't need to take any action. |
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