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On 20/08/2013 08:44, Helmut Jarausch wrote: |
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> On 08/19/2013 04:55:29 PM, Mike Gilbert wrote: |
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>> On Mon, Aug 19, 2013 at 5:58 AM, Helmut Jarausch |
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>> <jarausch@××××××××××××××××.de> wrote: |
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>> > Hi, |
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>> > |
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>> > what binaries and libraries have to be put into an initramfs for a |
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>> system |
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>> > booting with init=/usr/lib/systemd/systemd ? |
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>> > (I am building the initramsfs myself) |
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>> > |
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>> |
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>> You need to get your root filesystem and /usr mounted. Just keep that |
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>> goal in mind and start adding files to support it. |
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>> |
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>> There doesn't need to be anything systemd-specific. |
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>> |
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> |
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> I am not sure about "timing". |
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> |
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> Initially the kernel has only the "mini" /usr partition contained within |
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> the initramfs. |
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> Then it switches to "real root" and only then it tries to mount the |
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> "real" /usr partition. |
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> Does this all happen before the kernel hands control over to the init |
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> process (i.e. systemd) ? |
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Yes. |
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init requires / to be properly mounted. |
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You have a typo in your description, it should be: |
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"Then it switches to "real root" and mounts the "real" / partition." |
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The kernel mounts /, init mounts /usr (read from fstab). |
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The kernel does not mount /usr (although there can be one in the |
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initramfs, this is discarded when real root is mounted) |
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-- |
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-- |
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Alan McKinnon |
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alan.mckinnon@×××××.com |
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