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What's initramfs do now?What's initramfs do now?Posted Dec 5, 2012 22:01 UTC (Wed) by jimparis (subscriber, #38647)In reply to: What's initramfs do now? by nix Parent article: Gentoo's udev fork
> Err... the software can't get out of sync because initramfses are built at kernel build time from the software *already on* your system.
How does that keep things in sync? When you update the software on your system, you need to remember to rebuild the initramfs too. Likewise with changing any configuration files that are found in both, like /etc/mdadm/mdadm.conf. I've been bitten by forgetting to run "update-initramfs -u" after changing that file.
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What's initramfs do now? Posted Dec 5, 2012 22:19 UTC (Wed) by nix (subscriber, #2304) [Link]
Oh, yeah, sure, if you have config files in an initramfs linked into the kernel, and they change, you're stuffed. I just never ever do that: the only config files in my initramfs are /etc/fstab and /etc/mdadm.conf, and they're just there to default values for the array to activate and root filesystem to mount: a few lines of shell and bingo they're overrideable from the kernel command line. That sort of thing changes much less often than the kernel itself, though, so I consider a linked-in initramfs still preferable because it lets you bisect, test kernels and the like, which is one thing a standalone initramfs or initrd *does* make harder.
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