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OK, so I have to search for ramfs. What tool is used to create initramsf file |
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for boot or how to compile it into kernel and how to use it with grub ??? |
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Yes, start with kernel documentation ... but something quicker ??? :-) |
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Thanks a lot for your help. |
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Pat |
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On Wed, 21 Feb 2007 17:16:35 -0600, Boyd Stephen Smith Jr. wrote |
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> On Wednesday 21 February 2007, pat <pat@××××××××.org> wrote |
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> about '[gentoo-user] ramfs - is it necessary ???': |
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> > And if it is necessary where I can find good documentation |
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> > (samples, explanation, etc.). |
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> |
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> Pretty much all of the documenation on "early userspace" is in the |
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> kernel tree. You might even want to emerge the kernel with the |
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> 'doc' use flag, to get full (HTML?) documentation, although some of |
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> it is in simple plain text (rather than docbook) and available w/o |
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> that flag. |
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> |
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> > And next question is: hat is difference between ramfs and initrd ??? Is |
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> > it the same thing or not ... ??? |
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> |
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> initrd is the old way. A compressed (usually ext2) filesystem used |
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> to load kernel modules, or otherwise initialize things before |
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> mounting the root filesystem. |
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> |
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> initramfs is the new way. A compressed series of cpio archives |
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> (with some special treatment) for the same purpose. |
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> |
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> Both use ram-backed block devices. initrd doesn't need ramfs or |
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> tmpfs. I think an initramfs can use either, but it might require |
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> ramfs. An initramfs can be compiled into the kernel, either can be |
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> a separate file loaded by grub/lilo/xen. |
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> |
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> ramfs is a fixed-size ram-backed file system. tmpfs is a newer, |
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> better way to do this. It has a maximum size (which can be changed |
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> by a remount) but will only allocate enough ram to hold what is |
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> currently placed on the filesystem. |
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> |
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> -- |
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> Boyd Stephen Smith Jr. ,= ,-_-. =. |
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> bss03@××××××××××.net ((_/)o o(\_)) |
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> ICQ: 514984 YM/AIM: DaTwinkDaddy `-'(. .)`-' |
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> http://iguanasuicide.org/ \_/ |
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> New GPG Key! Old key expires 2007-03-25. Upgrade NOW! |
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-- |
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