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On Friday 27 Feb 2015 15:14:18 German wrote: |
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> On Fri, 27 Feb 2015 14:15:04 +0000 |
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> |
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> Neil Bothwick <neil@××××××××××.uk> wrote: |
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> > On Fri, 27 Feb 2015 07:49:20 -0500, German wrote: |
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> > > > The kernel cannot find the block device containing your root |
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> > > > filesystem. Either you have given the wrong root= option to the |
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> > > > kernel |
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> > > |
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> > > Are you talking about this? |
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> > > |
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> > > "UEFI does not pass kernel parameters to the kernel during normal boot, |
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> > > so you need to hardcode them via CONFIG_CMDLINE. Example for the root |
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> > > partition on /dev/sda2: KERNEL Enable built-in kernel parameters |
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> > > |
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> > > Processor type and features ---> |
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> > > |
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> > > [*] Built-in kernel command line |
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> > > (root=/dev/sda2)" |
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> > |
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> > Yes, if you are not using a boot manager. |
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> |
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> Hmm.. I was using some sort of boot manager, efibootmgr, however there was |
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> no word in install docs how to configure it to point to root device.. So, |
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> are you advising on gummiboot? Are people happy with it? I found gentoo |
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> wiki how to configure it, so I must give it a try. Thanks for your input, |
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> I guess the problem is solved now. On to the next install with gummi |
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You can still use the kernel stub to boot directly your OS, but you may need |
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to specify the root fs, if it is BTRFS (not sure about others): |
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|
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$ grep CONFIG_CMDLINE /usr/src/linux/.config |
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# CONFIG_CMDLINE_PARTITION is not set |
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CONFIG_CMDLINE_BOOL=y |
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CONFIG_CMDLINE="root=/dev/sda2 rootfstype=btrfs" |
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# CONFIG_CMDLINE_OVERRIDE is not set |
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Also the fs type should be built directly in the kernel, rather than a module. |
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-- |
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Regards, |
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Mick |
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