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Dirk Heinrichs wrote: |
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>> I remember having lvm2 a few years ago, and despite of that I could not |
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>> extend any partition, which was being used. What is then lvm2 good for, |
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>> if I can not extend partitions on-the-fly? I can not unmount /usr before |
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>> extending... |
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> |
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> The filesystem has to support resizing. A few years ago ext3 only supported |
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> offline resize. That has changed meanwhile. |
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Are you sure? man resize2fs says: |
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"...The resize2fs program will resize ext2 or ext3 file systems. |
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It can be used to enlarge or shrink an unmounted file system |
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located on device. If the filesystem is mounted, it can be used |
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to expand the size of the mounted filesystem, assuming the kernel |
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supports on-line resizing..." |
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If I understand correctly, you can only extend ext3-partition |
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with it. But shrinking must be done off-line, on unmounted fs... |
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Concerning resizing, I was wrong with blaming lvm2 for not being |
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able to resize fs online. It is really problem of filesystem which |
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might (or not) support it. I'm using ext3 because it is one of two |
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linux-supported fs I have some experience with (the other is |
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reiserfs, and I have some serious doubts about its future)... |
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Jarry |
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-- |
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