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2007/10/13, Richard Freeman <rich@××××××××××××××.net>: |
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> Beso wrote: |
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> > so if i understood right i have to go with /boot and a stripped / on |
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> > normal disks, with / duplicated to avoid loss of startup. |
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> |
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> Uh - unless you don't have enough space on one drive I'd mirror root - |
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> not stripe it. Ditto for boot - if you are willing to do raid you can |
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> boot a mirrored /boot just fine. |
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can i use raid even if i got a single hd and a non raid board?! i think i |
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missed this thing. i knew that i could use raid on 2 separate disks of the |
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same ammount and only if i had a raid compatible board (with hardware or |
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software) but i didn't know that you could use it also on a single disk. |
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> > so the only think to do is find a good backup utility that is able to |
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> > make a copy of the entire system. if i copy the system by hand from a |
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> > live-cd would that work? if so, what should i avoid to copy? |
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> > |
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> |
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> You can just copy files from a live CD. Actually, I've copied them from |
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> a running system - granted in single-user mode for the more critical |
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> stuff. I just used cp -a without much issue, but there might be some |
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> advantages to using tar (it might handle stuff like mountpoints and hard |
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> links and device nodes and FIFOs and stuff like that better - I'm not |
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> sure about that offhand). |
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> |
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> If you copy and leave the original data intact it is pretty easy to |
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> recover. I just moved data partition by partition and remounted on my |
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> existing root as I went along - slowly transforming my existing disk |
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> arrangement into my future setup. I didn't have too much downtime |
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> except for the final cutover of the root filesystem. |
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i tried to copy the system some time ago and found out that there are files |
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in /dev and /tmp or /var/tmp that have an enormous dimension. i have left |
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them behind and then got an unusable system for some reason. the copy i had |
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was from a livecd with the cp -p to preserve ownership and permission. |
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for what i know from /dev i have only to get /dev/null and /dev/console and |
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let all others devices be created by udev. from /tmp instead i should not |
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copy anything and from /var/tmp i should copy only the ccache. are my |
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suppositions correct? |
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> =bN8k |
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-- |
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dott. ing. beso |
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