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| pabs_ | ok whos ready for an easy noob question :/ | 03:08 |
|---|---|---|
| pabs_ | how do i start blackbox from the command prompt? | 03:08 |
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| pabs_ | ok i figured it out lol.... | 03:50 |
| pabs_ | now i just need to get a terminal in blackbox | 03:50 |
| pabs_ | :| | 03:50 |
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| ealden | MarioMeyer: ping | 08:26 |
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| visik7 | why evms are started at boot ? | 03:34 |
| fabbione | because if you use evms you need it | 03:34 |
| fabbione | and the script doesn't really do much itseld | 03:34 |
| fabbione | itself | 03:34 |
| visik7 | but there is no evms install options | 03:36 |
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| fabbione | so? you can install use it later on. evms can take over lvm2 disks for example | 03:37 |
| visik7 | ah | 03:37 |
| visik7 | is there some guide about lvm/evms | 03:37 |
| fabbione | and you don't need to worry about installing the package if you start using it | 03:37 |
| fabbione | not that i know of | 03:37 |
| visik7 | do u use lvm ? | 03:38 |
| fabbione | i am not familiar with evms myself | 03:38 |
| spike | eheeh, seems I'm not the only one complaining about it being there :P | 03:38 |
| visik7 | and lvm ? | 03:38 |
| fabbione | i prefer lvm2 but that's a personal choise | 03:38 |
| visik7 | I can't get the differences between lvm and evms | 03:38 |
| fabbione | they both do similar things | 03:38 |
| spike | visik7: userland tools | 03:38 |
| fabbione | they just get to it in different ways | 03:38 |
| spike | that's the only diff | 03:38 |
| fabbione | spike: not only | 03:38 |
| spike | not even that different afaik | 03:38 |
| fabbione | they configure the device-mapper in differnt ways | 03:39 |
| fabbione | evms has also the concept of raid iirc | 03:39 |
| spike | brb | 03:43 |
| visik7 | fabbione: I have an external disk how can I snapshot the current system that is an ubuntu installed with lvm ? | 04:13 |
| fabbione | visik7: snapshot as in an lvm snapshot or a backup? | 04:14 |
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| fabbione | because the 2 are completely different things | 04:14 |
| visik7 | ah | 04:14 |
| visik7 | maybe I misunderstood something | 04:14 |
| visik7 | a copy of therunning system to restore in case of emergence | 04:14 |
| visik7 | so yes probably a backup | 04:15 |
| fabbione | it's a backup | 04:17 |
| fabbione | but | 04:17 |
| fabbione | you can achieve backup via lvm snapshot | 04:17 |
| fabbione | the question is that with an external drive i assume you want a normal backup | 04:17 |
| fabbione | because playing with lvm snapshot can be tricky if you don't understand lvm | 04:18 |
| visik7 | so if a lvm snapshot isn't a backup what is it ? | 04:18 |
| fabbione | visik7: it can be used as backup, but not on an external disk that you plug/unplug | 04:19 |
| visik7 | it must be connected from the boot ? | 04:19 |
| fabbione | yes | 04:19 |
| fabbione | and you can't unplug it | 04:19 |
| fabbione | lvm snapshots record deltas of metadata | 04:20 |
| fabbione | not the entire thingy | 04:20 |
| fabbione | metadata and data sorry | 04:20 |
| visik7 | yes I understand the problem | 04:20 |
| visik7 | so | 04:20 |
| fabbione | example: | 04:20 |
| visik7 | to backup using lvm the way is ?... | 04:20 |
| fabbione | you have your /foo on lvm | 04:20 |
| fabbione | and there is a file called bar | 04:21 |
| visik7 | a kind of cow | 04:21 |
| fabbione | i make a snapshot of that | 04:21 |
| fabbione | mount the snapshot somewhere | 04:21 |
| fabbione | and create a file called bar | 04:21 |
| fabbione | baz sorry | 04:21 |
| fabbione | baz will appear only on the snapshot | 04:21 |
| fabbione | file bar is in both | 04:21 |
| visik7 | mmm | 04:21 |
| fabbione | but it stored on the real system only once | 04:22 |
| visik7 | so is not what I need | 04:22 |
| fabbione | you want a normal backup | 04:22 |
| fabbione | specially if you don't know lvm concept of snapshot | 04:22 |
| fabbione | that again.. can be used as backup if you know what you are doing | 04:22 |
| visik7 | it's the root partition so it's complicate to snapshot as backup | 04:24 |
| visik7 | I've to reboot | 04:24 |
| fabbione | iirc snapshot can be done live | 04:24 |
| fabbione | check the man page | 04:24 |
| fabbione | it's explained | 04:25 |
| visik7 | which of 40 commands related to lvm ? | 04:26 |
| fabbione | man lvm | 04:26 |
| visik7 | yes there's a short explaination and then a SEE ALSO section of 40 commands | 04:27 |
| fabbione | the 40 commands are all symlinks to lvm binaries just to help users understsand what they are doing | 04:27 |
| visik7 | ah | 04:27 |
| visik7 | :) | 04:27 |
| visik7 | I think it's more complicated than a single blinary | 04:27 |
| visik7 | is there some references on ubuntu wiki ? | 04:30 |
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| fabbione | visik7: check lvm documentation in /usr/share/doc/lvm2 | 04:31 |
| fabbione | visik7: these anyway are really basic questions you can ask in #ubuntu | 04:32 |
| visik7 | ok | 04:32 |
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| MarioMeyer | ealden_, ping | 09:15 |
| ubijtsa | hohum... | 09:32 |
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