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Am 22.05.2014 18:12, schrieb Neil Bothwick: |
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> I'm working on this btrfs malarkey and have a question about best |
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> practice. It is recommended to leave the root volume empty and |
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> create a subvolume for the root filesystem which is set with btrfs |
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> subvolume set-default, which I have done. |
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Alternative: mount the subvol via option "subvolid" etc in fstab .... if |
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you plan to mount different snapshots, for example. |
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> What is the recommended way to create subvolumes that are mounted |
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> further down the filesystem? Let's say I was usr and var on their |
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> own subvolumes. Do I create them in the btrfs root, which means |
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> they have to be mounted from /etc/fstab - or do I create hem below |
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> the subvolume called root? |
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I saw more examples mounting every dir via a |
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separate line in fstab (which also adds the choice to mount them with |
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different options, think compression etc). |
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My understanding is: |
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* create and use subvols for entities you want to be able to snapshot |
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and rollback individually. |
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* create and use subvols for entities you want to apply special |
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options to: compression, (no)COW, quota ... |
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I would mount each subvol via extra line and create them in parallel ... |
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> That raises another question. Assuming I've done it wrong (well, my |
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> wife always does) is there an equivalent to the zfs rename command |
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> to move or rename a subvolume? |
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As far as I understand you are allowed to mount the root volume (or |
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academic: any subvol in a higher level) and use plain "mv" to rename |
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the subvols as if you renamed sub-dirs. |
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Stefan |
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