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Mathias Weigt wrote: |
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| Donnie Berkholz wrote: |
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|> What exactly do you want more detail about? |
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| |
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| |
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| "They boot to an initrd containing busybox, then proceed to mount |
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| necessary bits from a read-only NFS export and other bits via tmpfs |
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| where they need to write, then pivot_root into the new NFS root." |
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| |
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| I'd like like some instructions how to do these things you wrote above. |
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| If you don't like to write a huge essay, I don't mind getting it step |
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| by step. |
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A linuxrc file does all sorts of stuff. linuxrc is a file within an |
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initrd that gets automatically executed when booting into the initrd. |
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The initial, skeletal linuxrc downloads a more complex script called |
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linuxrc.real from the NFS server and executes that. |
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|
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The more complex script mounts a number of NFS exports (/ and so on), |
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then mounts tmpfs for the areas that need write permissions (chunks of |
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/var and so forth). Another option here would be a unionfs, but I |
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haven't looked into it. |
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|
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Originally, I got both of them from xmerlin (another dev), and modified |
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them a bit to fit my circumstances. I'll look around a bit to see |
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whether I can find them, and send them along. |
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|
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Another thing you'll want to look into at this point is using initramfs |
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instead of initrd. initramfs is initrd's successor and operates a bit |
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differently. |
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|
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Thanks, |
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Donnie |
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-- |
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