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On Tue, Nov 12, 2013 at 3:55 PM, Tanstaafl <tanstaafl@×××××××××××.org> wrote: |
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> On 2013-11-12 4:49 PM, Tanstaafl <tanstaafl@×××××××××××.org> wrote: |
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>> |
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>> Ok, looking into this now... |
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>> |
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>> Reading the referenced wiki page shows this comment: |
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>> |
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>>> Introduction and bootloader configuration |
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>>> |
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>>> To create an initramfs, it is important that you know what |
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>>> additional drivers, scripts and tools you need to boot your system. |
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>>> For instance, if you use LVM, then you will need to support LVM tools |
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>>> on the initramfs. Likewise, if you use software RAID, you need mdadm, |
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>>> etc. |
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>> |
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>> |
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>> I thought I'd mentioned/asked this before, but don't recall a |
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>> satisfactory answer... |
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>> |
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>> Ok, up until now, I haven't *had* to 'know' what additional drivers are |
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>> needed by my system to boot. |
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>> |
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>> So... how the heck am I supposed to find out? Trial and error? |
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> |
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> |
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> Further down under the genkernel section has: |
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> |
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>> Depending on your system, you might want to add one or more of the |
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>> following options: |
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>> Option Description |
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>> --disklabel Add support for LABEL= settings in your /etc/fstab |
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>> --dmraid Add support for fake hardware RAID |
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>> --firmware Add in firmware code found on the system |
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>> --gpg Add in GnuPG support |
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>> --iscsi Add support for iSCSI |
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>> --luks Add support for luks encryption containers |
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>> --lvm Add support for LVM |
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>> --mdadm Add support for software RAID |
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>> --multipath Add support for multiple I/O access towards a SAN |
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>> --zfs Add support for ZFS |
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> |
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> |
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> So, are these *all* of the potential options? If so, then I can probably |
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> safely say that all I need is lvm... |
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|
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You *MUST* add the necessary modules/tools to mount root and/or /usr. |
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So if you have an XFS partition on a LVM volume on top of an mdraid, |
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and the partition is encrypted, then you need the kernel modules for |
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xfs, lvm, mdraid and crypt, and the corresponding userspace tools, |
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including fsck.xfs. |
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|
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You *MAY* add whatever else you want in your initramfs (I add the |
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drivers for my USB keyboard, so in case of emergencies I can actually |
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type commands), but the only parts you *MUST* include are the ones you |
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need to mount (and check) your root and /usr partitions. |
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|
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I strongly recommend dracut; the modules listed in DRACUT_MODULES are |
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usually self explanatory, and it Just Works™. |
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Regards. |
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-- |
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Canek Peláez Valdés |
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Posgrado en Ciencia e Ingeniería de la Computación |
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Universidad Nacional Autónoma de México |
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