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On Tue, Mar 17, 2015 at 5:07 PM, Dale <rdalek1967@×××××.com> wrote: |
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> Alan McKinnon wrote: |
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>> You are reading it wrong. That means: |
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>> util-linux needs to be built with USE="static-libs" |
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>> because |
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>> lvm2 is already built with USE="static" |
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>> |
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>> None of which explains why you originally built lvm2 that way. |
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> |
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> It was because emerge told me it needed it for some reason. It is very |
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> rare that I just put something in package.use on my own. |
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|
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This was probably required by some script for mounting /usr or by some |
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initramfs you were using before you switched to dracut. |
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|
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Dracut is pretty advanced by initramfs standards. It handles dynamic |
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linking just fine (bundling libraries/etc as needed). Simpler |
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initramfs tools and such don't, and to make things easier there is a |
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tendency to build anything needed to mount root/usr static so that it |
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is certain to run correctly. |
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|
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You can look inside an initramfs by doing the following: |
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mkdir /tmp/ext |
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cd /tmp/ext |
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zcat /boot/initramfs-3.18.9-gentoo.img | cpio -i |
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find usr |
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find lib64 |
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... |
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|
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There is quite a bit of dynamic linking going on in a typical dracut |
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initramfs, and quite a bit of stuff installed in /usr it utilizes |
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either to mount root/usr or just for operator convenience (it is nice |
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to be able to use less in an emergency shell, and so on). It is also |
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really easy to tell dracut to add stuff to an initramfs. I tweaked my |
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btrfs module to add btrfstune to the initramfs so that I could easily |
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enable skinny metadata without a boot CD. In some sense, you could |
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think of an initramfs as the rescue CD you always have ready (though I |
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also keep systemrescuecd handy on a USB stick). |
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|
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-- |
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Rich |
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