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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 11-21-2012, 11:03 AM   #1
windsorjj
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Question Booting problem VBOX


hello,
Does anyone here tried build lfs7.2 on VirtualBox? I am having problem booting it.
I used a separate virtualdisk for LFS and built it while working on xubuntu running on separate virtualdisk.
When i did fdisk -l, LFS was on sdb[sdb1(ext3),sdb2(swap)] & xubuntu was on sda[sda1(ext4),sda2(swap)].
So, i installed grub on sdb.
But, in the grub.cfg file i gave root as (hd0,1) as when i am booting only the LFS virtualdisk alone, then it will be hd0.

the booting starts, but it does not complete.
Any idea how i should troubleshoot this?

thanks.
 
Old 11-21-2012, 06:23 PM   #2
EDDY1
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(hd0,1) should be (hd1,1)
You didn't have to install grub to lfs unless you're going to run in it's own machine.
You could've run
Quote:
update-grub
 
Old 11-23-2012, 12:55 AM   #3
windsorjj
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Quote:
Originally Posted by EDDY1 View Post
(hd0,1) should be (hd1,1)
You didn't have to install grub to lfs unless you're going to run in it's own machine.
You could've run
set to (hd1,1) leads to no booting at all.
Gives error:
Code:
error: hd1 cannot get C/H/S values
With my original config, the booting starts but gives error when mounting swap & root partition.
When i built LFS it was on sdb & Xubuntu on sda. But, then i removed the xubuntu vdisk and am only booting from lfs vdisk. So, lfs vdisk is now sda. Grub config seems to be work well. But, problem seems to be during booting process as it is trying to mount sdb1 & sdb2; instead of sda1 & sda2.

With orig config as in first post i get this error:
Code:
.....(Normal log lines which appear during boot)........
................
................
Activating all swap.... /dev/sdb2 stat failed No such file or directory     [FAIL]
Checking file system ..fsck:ext3: No such file or directory while trying to open /dev/sdb1  [FAIL]

Failure: 
File system error was encountered that could not be fixed automatically. This syste cannot continue to boot & will therefore be halted until those errors are fixed manually by a system adminstrator. 
After you press Enter this system will be halted & powered off/

Last edited by windsorjj; 11-23-2012 at 01:09 AM.
 
Old 11-23-2012, 07:54 AM   #4
stoat
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Maybe focusing on the set root= command of grub.cfg made you overlook the root= parameter in the linux command line. Anyway, I've done that before. Also check /etc/fstab now that devices likely are being enumerated differently. Also check to make sure that you have built in (not modules) appropriate file system support including devtmpfs (CONFIG_DEVTMPFS=y found in Device Drivers --->Generic Driver Options --->).

Last edited by stoat; 11-23-2012 at 08:20 AM.
 
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Old 11-24-2012, 01:55 AM   #5
windsorjj
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Smile

Quote:
Originally Posted by stoat View Post
Maybe focusing on the set root= command of grub.cfg made you overlook the root= parameter in the linux command line. Anyway, I've done that before. Also check /etc/fstab now that devices likely are being enumerated differently. Also check to make sure that you have built in (not modules) appropriate file system support including devtmpfs (CONFIG_DEVTMPFS=y found in Device Drivers --->Generic Driver Options --->).
Problme was in fstab. Corrected root & swap as sda1 & sda2. Now, LFS boots without any problems.
Thanks! stoat.
 
  


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