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-   -   Booting problem (http://www.linuxquestions.org/questions/linux-server-73/booting-problem-4175446971/)

monojeffrey 01-23-2013 09:40 PM

Booting problem
 
1 Attachment(s)
am running Red hat 5
having some problem with booting
attached snapshot

is there any option called
Last known good configuration (like in windows)
to resume normal booting of the server

--
thanks for the help

chrism01 01-23-2013 11:28 PM

Looks like the kernel or related file is missing.
You could use the install media and select Rescue mode to edit /boot/grub/grub.conf on the disk and use another kernel.
Usually it defaults to 3 kernels being configured there.
https://www.centos.org/docs/5/html/I...mode-boot.html

monojeffrey 01-24-2013 05:01 AM

No root partition
 
2 Attachment(s)
i went to the link and referred found to be good one (learned how to edit grub)
but the problem is there is no root partition
i attached the snap shots of the rescue mode

--
thanks for the help

chrism01 01-24-2013 06:22 AM

In that 2nd screen ie cli, try
Code:

fdisk -l
that's a lowercase L param.
We can check to see what you've got.

monojeffrey 01-25-2013 12:00 AM

fdisk output
 
1 Attachment(s)
hi chris
i have attached the fdisk -l output as you mentioned

chrism01 01-25-2013 12:55 AM

Well, as you can see, that says you've got a formatted 16GB disk with Linux and an unformatted 10GB disk.
Does that sound right to you?

You'll notice that /dev/sda1 has a '*' in the 'Boot' column, so that's your boot partition, so you should try to mount that under /mnt/sysimage and you should find the grub file as above.

I'll just point out that those are pretty small disks for a modern distro. You'll need to be careful what (ie how much) SW you install.

FYI RHEL 5 Install http://www.linuxtopia.org/online_boo...ide/index.html & Admin http://www.linuxtopia.org/online_boo...ion/index.html guides.

Good Luck :)

monojeffrey 01-25-2013 10:33 PM

practicing Linux
 
hi chris,
its just a VM workstation environment
am just developing an environment for practicing Linux(would be installing only one application with oracle database)
i have been with linux environment for the past three months only(novice)
so , i would read the links wat u have mentioned
thank u so much for your patience and clearing my silly mistakes

monojeffrey 01-26-2013 12:44 AM

couldn't found the root partition files
 
1 Attachment(s)
i could not find the boot partition files(grub.conf) etc
i created a directory called moon
and used this command
mount -t ext3 /dev/sda1 /moon (since sda1 contains the boot partition )
when i navigated to /moon i found the files which is attached to the snapshot

yancek 01-26-2013 11:31 AM

The image in your last post shows the kernel (vmlinuz...) which is shown as a hidden file (prefixed by a dot (.) and is a different verson than the kernel from your initial post?? No other boot files show. What's in the lost+found directory?

monojeffrey 01-26-2013 08:43 PM

contents of lost+found directory
 
1 Attachment(s)
i mounted the /dev/sda1 contents to moon
the snapshot attached shows the contents inside
unable to find grub and other files related to the boot partitions.

yancek 01-27-2013 01:13 PM

Mount sda1 again and run this: ls -la /moon/lost+found/

I don't think it's going to show much, anything useful that is.

monojeffrey 01-28-2013 05:03 AM

lost+found directory contents
 
1 Attachment(s)
have attached the snapshot of lost+found dir

yancek 01-28-2013 10:19 AM

Doesn't look like there is much hope here. Your kernel was changed for some unknown reason and you don't have any boot files on sda1.


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