Fail to boot after installation

02-07-2008

#1 (permalink)

satimis

Linux Engineer

Join Date: Sep 2004

Posts: 1,221

Fail to boot after installation

Hi folks,

86-64 2007-08-02 core ISO

Installation went through w/o problem. After finish on reboot it hangs on "GRUB". The bootloader seems missing.

# fdisk -l

Code:

/dev/sda1  *  Linux   (/boot)
/dev/sda2      Linux   ( / )
/dev/sda3      Linux   (/var)
/dev/sda4      Extended
/dev/sda5      Linux swap / Solaris
/dev/sda6      Linux  (/home)

# mount /dev/sda1 /mnt
# ls /mnt

Code:

Systam.map26   grub         kernel26-fallback.img    lost+found
diag1.img          kconfig26  kernel26.img                vmlinuxz26

# cat /mnt/grub/menu.lst

Code:

timeout  5
default   0
color   light-blue/black   light-cyan/blue


# (0) Arch Linux
title  Arch Linux
root  (hd0,0)
kernel   /vmlinuz26   root=/dev/sda2   ro
initrd   /kernel26.img

# (1) Arch Linux
title  Arch Linux Fallback
root  (hd0,0)
kernel   /vmlinuz26   root=/dev/sda2   ro
initrd   /kernel26-fallback.img

Please advise where shall I check and how to fix the problem. TIA

B.R.
satimis

02-07-2008	#2 (permalink)
devils casper Super Moderator Join Date: Jun 2006 Location: Chandigarh, India Posts: 21,081	Type full path of /boot in grub.conf file. Code: title Arch Linux root (hd0,0) kernel (hd0,0)/vmlinuz26 root=/dev/sda2 ro initrd (hd0,0)/kernel26.img __________________ It takes a lot of time to be a genius, you have to sit around so much doing nothing, really doing nothing. - Gertrude Stein New Users: Read This First

02-07-2008

#3 (permalink)

satimis

Linux Engineer

Join Date: Sep 2004

Posts: 1,221

Quote:

Originally Posted by devils_casper

Type full path of /boot in grub.conf file.

Code:

title  Arch Linux
root  (hd0,0)
kernel  (hd0,0)/vmlinuz26   root=/dev/sda2   ro
initrd   (hd0,0)/kernel26.img

Thanks for your advice.

Tried your suggestion but still failed, hanging on GRUB

I'm prepared to re-run grub but forget how to "chroot" /dev/sda1, the boot partition. Can you shed me some light? TIA

B.R.
satimis

02-07-2008	#4 (permalink)
devils casper Super Moderator Join Date: Jun 2006 Location: Chandigarh, India Posts: 21,081	I think I am forgetting something. Have you tried /boot along with (hd0,0) in kernel and initrd lines.? Code: kernel (hd0,0)/boot/vmlinuz26 root=/dev/sda2 ro initrd (hd0,0)/boot/kernel26.img __________________ It takes a lot of time to be a genius, you have to sit around so much doing nothing, really doing nothing. - Gertrude Stein New Users: Read This First

02-07-2008

#5 (permalink)

satimis

Linux Engineer

Join Date: Sep 2004

Posts: 1,221

Quote:

Originally Posted by devils_casper

I think I am forgetting something. Have you tried /boot along with (hd0,0) in kernel and initrd lines.?

Code:

kernel  (hd0,0)/boot/vmlinuz26   root=/dev/sda2   ro
initrd   (hd0,0)/boot/kernel26.img

Just tried your suggestion. But still failed.

Tried follows after booting up the pc with the installer CD

# grub-install --recheck /dev/sda1
Could not find kernel image

# vmlinuz root=/dev/sda2

Code:

.....
.....
List of all partitions:
No filesystem could mount root, tried:
Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)

Would it be something else?

satimis

02-07-2008

#6 (permalink)

satimis

Linux Engineer

Join Date: Sep 2004

Posts: 1,221

(solved)

Hi devils_casper,

Problem solved as follows;

Booting up the PC with the installer CD by pressing [Enter]

# fcsk /dev/sda2

# grub
grub> root (hd0,0)

Code:

Filesystem type is ext2fs, partition type 0x83
Checking if "/boot/grub/stage1" exists ..... no
Checking if "/grub/stage1" exists ... yes
Checking if "/grub/stage2" exists ... yes
Checking if "/grub/e2fs_stage1_5" exists ... yes
Running "embed /grub/e2fs_stage1_5 (hd0)" ... 23 sectors are embedded.
Succeeded
Running "install /grub/stage1 (hd0) (hd0)1+23 p (hd0,0)/grub/stage2 /grub/menu.lst" ... succeeded
Done

grub> kernel /vmlinuz26 root=/dev/sda2

Code:

[Linux-bzImage, setup=0x1c00, size=0x1ca588]

grub> boot
[Arch Linux: /]# reboot

It boots to;
moyhost login: root
[root@myhost ~]#

It is OK now.

B.R.
satimis

02-07-2008	#7 (permalink)
devils casper Super Moderator Join Date: Jun 2006 Location: Chandigarh, India Posts: 21,081	Well Done ! __________________ It takes a lot of time to be a genius, you have to sit around so much doing nothing, really doing nothing. - Gertrude Stein New Users: Read This First

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