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On Sun, Apr 8, 2012 at 3:04 PM, Canek Peláez Valdés <caneko@×××××.com> wrote: |
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> On Sun, Apr 8, 2012 at 1:59 PM, Michael Mol <mikemol@×××××.com> wrote: |
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>> On Sun, Apr 8, 2012 at 2:51 PM, Canek Peláez Valdés <caneko@×××××.com> wrote: |
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>>> On Sun, Apr 8, 2012 at 1:41 PM, Michael Mol <mikemol@×××××.com> wrote: |
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>>>> On Sun, Apr 8, 2012 at 2:21 PM, Canek Peláez Valdés <caneko@×××××.com> wrote: |
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>>>>> On Sun, Apr 8, 2012 at 11:44 AM, <meino.cramer@×××.de> wrote: |
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>>>>>> Mick <michaelkintzios@×××××.com> [12-04-08 18:40]: |
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>> |
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>> [snip] |
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>> |
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>>>>>> Status quo: System with ext4 and no extended attributes. |
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>>>>>> Where I want to be: The same system with extended attributes. |
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>>>>>> |
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>>>>>> Way to go: No reformatting and mkfs and all that things. Only kernel |
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>>>>>> reconfiguring / recompiling / rebooting and emerging some tools. |
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>>>>>> |
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>>>>>> Possible? |
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>>>>> |
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>>>>> As others had said, this is possible. I used this guide: |
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>>>>> |
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>>>>> http://www.debian-administration.org/articles/643 |
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>>>>> |
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>>>>> You need basically to enable the ext4-only features: |
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>>>>> |
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>>>>> tune2fs -O extents,uninit_bg,dir_index <partition> |
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>>>> |
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>>>> Um, why? Ext3 had extended attribute support, and ISTR the ext4 code |
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>>>> being able to handle ext3 filesystems. |
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>>> |
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>>> Didn't we already had this discussion? You can mount an ext3 partition |
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>>> as ext4, and it will be treated as ext4, but it will keep bein fully |
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>>> backwards compatible with ext3 (i.e., you can still mount it as ext3). |
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>>> This, however, negates the purpose of using ext4, as you are not using |
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>>> extents: |
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>> |
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>> Sure, ext4 is a better filesystem than ext3. I'm not disputing that. |
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>> I'm disputing that. I'm disputing two things: |
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>> |
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>> 1) That you need to convert a filesystem to ext4 in order to use |
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>> extended attributes. |
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>> 2) That you need to convert the filesystem at all; Meino's 'status |
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>> quo' filesystem is already ext4, per the portion of his email I |
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>> quoted. |
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> |
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> From Mick's mail: |
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> |
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>> Status quo: System with ext4 and no extended attributes. |
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>> Where I want to be: The same system with extended attributes. |
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> |
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> I assume with that he meant the "extents" option. Therefore, all the |
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> things I already said. |
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|
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Ah. 'extents' and 'extended attributes' are completely different |
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things. I did a bit of googling to confirm my recollection. |
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|
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FWIW, I came across this very excellent page in discussion of Ext4 |
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compared to other and previous filesystems: |
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http://kernelnewbies.org/Ext4 |
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|
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-- |
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:wq |
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