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Am 05.09.2012 17:39, schrieb Mark Knecht: |
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> Hi, |
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> I'm sort of glazing over & falling asleep trying to understand the |
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> Gentoo genkernel Wiki page. This is not critical time-wise. I'm just |
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> curious about what genkernel could do in terms of creating a kernel & |
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> an initramfs for a root partition on RAID > 1 and metadata > 0.9. I've |
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> done this in the past by hand but I've tended to stay away from / on |
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> RAID > 1 simply because of the work of creating and maintaining the |
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> initramfs. |
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> |
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> If someone has a gnekernel.conf file that might be of interest I'd |
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> appreciate seeing it, along with how you run it from the command line. |
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This is the config I have been using on systems with / on RAID1 or RAID5 |
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(metadata > 0.9). With genkernel it's pretty simple, just specify these |
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two lines: |
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|
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########## |
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# Includes mdadm/mdmon binaries in initramfs. |
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# Without sys-fs/mdadm[static] installed, this will build a static mdadm. |
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MDADM="yes" |
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|
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# Specify a custom mdadm.conf. |
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# By default the ramdisk will be built *without* an mdadm.conf and will |
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auto-detect |
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# arrays during bootup. Usually, this should not be needed. |
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MDADM_CONFIG="/etc/mdadm.conf" |
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########## |
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|
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Just make sure you're mdadm.conf reflects your current raid setup. If |
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you don't set MDADM_CONFIG the initramfs should auto asseble the RAID, |
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but I have never used that. I don't trust it enough :) |
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|
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Last thing you need to do is pass the domdadm kernel parameter in your |
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bootloader. With grub to you just edit /etc/default/grub |
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GRUB_CMDLINE_LINUX_DEFAULT="domdadm" |
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Then regenerate your grub config. |
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