I tried to boot LFS for the first time and got about this message:

root-nfs: no nfs server available, giving up.
Vfs: unable to mount root fs via NFS, trying floppy
VFS: Cannot open root device „sda11” or unknown-block(2,0)
Please append a correct „root” boot option.
Kernel panic – not syncing: VFS: Unable to mount root fs on unknown-block(2,0)

Is it problem with kernel compilation or grub?

Here are some of my conf:


grub> root (hd0,10)
Filesystem type is ext2fs, partition type 0x83

grub> setup (hd0,10)
Checking if "/boot/grub/stage1" exists... yes
Checking if "/boot/grub/stage2" exists... yes
Checking if "/boot/grub/e2fs_stage1_5" exists... yes
Running "embed /boot/grub/e2fs_stage1_5 (hd0,10)"... failed (this is not fatal)
Running "embed /boot/grub/e2fs_stage1_5 (hd0,10)"... failed (this is not fatal)
Running "install /boot/grub/stage1 (hd0,10) /boot/grub/stage2 p /boot/grub/menu.lst ".
.. succeeded
Done.

Grub entry is:
(Added to my Ubuntu grub menu.lst)

title LFS SVN-20090510

root (hd0,10)

kernel /boot/lfskernel-2.6.27.4 root=/dev/sda11

Map of hard disk is:
root:/# fdisk -l



Disk /dev/sda: 250.0 GB, 250059350016 bytes

255 heads, 63 sectors/track, 30401 cylinders

Units = cylinders of 16065 * 512 = 8225280 bytes

Disk identifier: 0x0003990a



Device Boot Start End Blocks Id System

/dev/sda1 1 262 2104483+ 83 Linux

/dev/sda2 * 263 15104 119218365 f W95 Ext'd (LBA)

/dev/sda3 15105 17715 20972857+ 83 Linux

/dev/sda4 17716 30401 101900295 7 HPFS/NTFS

/dev/sda5 3050 4094 8393962+ 82 Linux swap / Solaris

/dev/sda6 4095 8011 31463271 83 Linux

/dev/sda7 8012 11928 31463271 83 Linux

/dev/sda8 11929 15104 25511188+ 83 Linux

/dev/sda9 263 1191 7462129+ 83 Linux

/dev/sda10 1192 2120 7462161 83 Linux

/dev/sda11 2121 3049 7462161 83 Linux



Partition table entries are not in disk order



Disk /dev/sdb: 250.0 GB, 250059350016 bytes

255 heads, 63 sectors/track, 30401 cylinders

Units = cylinders of 16065 * 512 = 8225280 bytes

Disk identifier: 0x2b7daabb



Device Boot Start End Blocks Id System

/dev/sdb1 * 1 5099 40957686 7 HPFS/NTFS

/dev/sdb2 5100 30400 203230282+ f W95 Ext'd (LBA)

/dev/sdb5 5100 30400 203230251 7 HPFS/NTFS

root:/#



Kernel configuration in attached file.

Thank you for help

Attached Files

config-2.6.27.4.txt (56.7 KB, 9 views)

I already found the problem. I haven't included the support for the specific SCSI in kernel compilation. It took a long time to find it out but it was worth it.