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fjenkins
n00b
Joined: 14 Mar 2006
Posts: 4
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 Posted: Wed Sep 27, 2006 3:43 am Post subject: linuxrc: 209: mdev: not found |
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I tried creating a new kernel using genkernel
| Code: | | genkernel --bootsplash --install --save-config --clean --mrproper all |
but when booting this kernel, when it tries to start mdev, it gives this error:
| Code: | | /linuxrc: /linuxrc: 209: mdev: not found |
Then complains that the block device /dev/hdc3 is not a valid root device. I entered the shell, and found that there are no hd's in the /dev directory (which I suppose I should expect since mdev failed to start), but there are ram*, loop*, tty*, and vcs* and a few one-off devices. I ran find in the initrd's shell and there was indeed nothing named mdev. I assumed that I needed mdev installed when I ran genkernel, so I booted back into the old kernel, but couldn't find a package named mdev in portage.
SOOooo, what do I need to do to get mdev working, or at least get /dev/hd* on the initrd so I can boot with this kernel?
I should also mention that I uncommented in /etc/genkernel.conf so I could see what it thinks is the correct grub syntax and got the following:
| Code: |
title=Gentoo Linux (2.6.17-gentoo-r8) initrd only
root (hd1,0)
kernel /boot/kernel-genkernel-x86-2.6.17-gentoo-r8 root=/dev/ram0 real_root=/dev/hdc3 init=/linuxrc ramdisk_size=6744 hdb=scsi vga=791 splash=silent
#kernel /boot/kernel-genkernel-x86-2.6.17-gentoo-r8 root=/dev/ram0 real_root=/dev/hdc3 init=/boot/initrd-genkernel-x86-2.6.17-gentoo-r8 ramdisk_size=6744 hdb=scsi vga=791 splash=silent
initrd /boot/initramfs-genkernel-x86-2.6.17-gentoo-r8
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It should be noted that the two files | Code: | /boot/kernel-genkernel-x86-2.6.17-gentoo-r8
/boot/initrd-genkernel-x86-2.6.17-gentoo-r8 |
exist after running genkernel --install, but
| Code: | | /boot/initramfs-genkernel-x86-2.6.17-gentoo-r8 |
does not. I'm assuming that last file was supposed to be /boot/initrd-genkernel-x86-2.6.17-gentoo-r8,
so I changed it (which allows it to boot... leaving initramfs there causes an instant error from grub about the file not existing), but it still dies at mdev.
I also tried uncommenting the second kernel line and commenting the first kernel and the initrd, but that also has the same problem (as I suppose I would expect, since the two are equivelant).
So, again, any ideas how to get mdev working? |
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desultory
Bodhisattva
Joined: 04 Nov 2005
Posts: 9410
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| Posted: Wed Sep 27, 2006 4:08 am Post subject: |
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| Try updating sys-apps/busybox then having genkernel create a new initrd image (genkernel uses busybox to provide mdev functionality in the initrd environment). |
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fjenkins
n00b
Joined: 14 Mar 2006
Posts: 4
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| Posted: Wed Sep 27, 2006 7:53 am Post subject: More answers lead to more questions |
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Well, I emerged busybox 1.2.1, then reran,
| Code: | | genkernel --bootsplash --install --save-config --clean --mrproper all |
However, it still uses busybox-1.1.3, because apparently that is actually included in the genkernel ebuild (v3.4.1), and I still get the 'mdev not found' error.
HOWEVER, I entered the initrd shell again, and ran busybox by itself to get a function list (which didn't list mdev as one of it's functions), but then ran busybox mdev and sure enough, it gave me the mdev help file. I then ran
and the correct devices were added. This allowed me to quit the shell, then tell it to use /dev/hdc3 as root, and it booted right up.
Sooo, that's good, except I have no idea how to modify initrd to either call busybox mdev -s, or add a link from mdev to busybox. So, any pointers there would be greatly appreciated. |
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