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Linux From Scratch This Forum is for the discussion of LFS.
LFS is a project that provides you with the steps necessary to build your own custom Linux system.

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Old 03-26-2006, 10:30 AM   #1
Demogorgon
LQ Newbie
 
Registered: Feb 2006
Location: Uppsala, Sweden
Distribution: Slackware, Debian, LFS, Gentoo, DSL
Posts: 5

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Cannot open root device "sda8" or unknown-block(0,0)


I get this message when I try to start LFS (6.1.1).

VFS: Cannot open root device "sda8" or unknown-block(0,0)
please append a correct "root=" boot option
Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)

I have checked many threds in LQ and other places and tried stuff that other with similar problems have ben suggested to do.

I have checked that the filesystems are built in as it should, I have checked that grub is ok and that the sata support is built in.

Nothing works, I must have missed something.

I build on a SATA disk and without modules.

In grub I just added this to my existing grub config that I have in my existing system (debian)

title LFS 6.1.1
root (hd0,7)
kernel /boot/lfskernel-2.6.11.12 root=/dev/sda8

Anyone who know what it can be. Maybe more information is needed, tell me what in that case.
 
Old 03-27-2006, 03:35 AM   #2
perfect_circle
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Registered: Oct 2004
Location: Athens, Greece
Distribution: Slackware, arch
Posts: 1,783

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What kind of file-system does your root partition have?
Is the support for this filesystem also build inside the kernel?
If not you need to create an initrd to include the module and be able to load the file-system support module without mounting the filesystem.
 
  


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