Le 08-01-2015 14:54, Armin K. a écrit :
> On 01/08/2015 07:50 PM, [email protected]: > Le 08-01-2015 14:35, Armin K. a écrit : On 01/08/2015 07:02 PM, > [email protected]: Le 08-01-2015 12:38, Pierre Labastie a écrit : Le > 08/01/2015 15:30, [email protected] écrit : Le 08-01-2015 05:06, > Pierre Labastie a écrit : Le 08/01/2015 03:44,[email protected] > <mailto:[email protected]>a écrit : Hi! when I boot, it fails with > '.... unable to mount root fs on unknown block 0,0 [...] > ----------------------LFS------------------------------------------------------------------------------------------- > /dev/sda8 9,9G 2,3G 7,1G 25% /mnt/lfs */dev/sda7 97M 9,6M 83M 11% > /mnt/lfs/boot* /dev/sda9 3,0G 69M 2,8G 3% /mnt/lfs/var /dev/sda10 5,0G 840M > 3,9G 18% /mnt/lfs/usr udev 10M 0 10M 0% /mnt/lfs/dev tmpfs 982M 0 982M 0% > /mnt/lfs/run to boot the LFS, I add a new entry in /etc/grub.d/40_custom of > the host, then ran update-grub menuentry "LFS 7.6 on sda7" { insmod ext2 set > root='(hd0,7)' echo 'Chargement de Linux LFS...' linux > /vmlinuz-3.16.2-lfs-7.6 root=/dev/sda7 ro echo 'Chargement de Linux LFS...' } As far as I understand your setup you should keep: insmod part_gpt and the "linux" line should be: linux /vmlinuz-3.16.2-lfs-7.6 root=/dev/sda8 ro But that does not explain the error you see. You may be missing some switches in the kernel config, concerning either your disk hardware (with standard ATA disks, you need to enable several switches in "Serial ATA and Parallel ATA drivers"), or the GPT partition scheme (you need "EFI GUID partition support", maybe the first thing to check). Pierre The "linux" line should be: linux /vmlinuz-3.16.2-lfs-7.6 root=/dev/sda*7* ro since it's the boot partition, sda8 is / For linux, "root" is '/', and, since '/' is on /dev/sda8, I confirm that the linux line should have "root=/dev/sda8". The boot partition is only "root" for grub. Hence the "root=(hd0,7)" in the grub commands. Pierre As i'm understanding, the new customized entry should be menuentry "LFS 7.6" { insmod part_gpt insmod ext2 set root='(hd0,gpt7)' echo 'Chargement de Linux LFS...' linux /vmlinuz-3.16.2-lfs-7.6 root=/dev/sda8 ro echo 'Chargement de Linux LFS...2' } i kept gpt7 for set root; and i kept /vmlinuz! right! The link below is the /boot/grub/grub.cfg of my host system, the last entry (in green) is the LSF System (i will changed it now) /dev/sda7 is the boot partition mounted in /boot (/mnt/lfs/boot in the host system) http://www.pierre-selosse.net/lfs/echecBoot.html [1] [1] [1] pierre Links: ------ [1] http://www.pierre-selosse.net/lfs/echecBoot.html [1] [1] Running grub-mkconfig in your LFS chroot should give you the correct GRUB options to use. HI Armin I did not want to overwrite the boot loader set by the host system. Do you mean i should install grub from the chroot before run grub-mkconfig. Then i could add en entry for the first (host) system? Pierre Links: ------ [1] http://www.pierre-selosse.net/lfs/echecBoot.html [1] As I said, running grub-mkconfig should give you the correct grub options to use. I said nothing about overwriting an existing bootloader or a configuration file. The command only outputs bunch of text, among which is the menuentry line. Ok, I got a configuration file with only entries for LSF. Assuming that I don't install grub from root, should I paste one from the menuentries in the /boot/grub.d/grub.cfg of the host? Links: ------ [1] http://www.pierre-selosse.net/lfs/echecBoot.html
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