[SOLVED] Unable to boot

[lwpack]

Hello. I just upgraded from Gutsy to Hardy, but upon rebooting, I get "Error 15, file not found."

Before upgrading, I had all my entries below the automagic line on the grub menu (I was having some issues so I didn't want the entries changed). However, after upgrading, these no longer boot (the linux ones anyway, I can still boot into windows).

I have a feeling I just need to edit my grub menu, but I'm not sure how. Can somebody help? Thanks.

Below I'm posting my grub menu, fdisk -l command, and my fstab file (all before the upgrade as I can't access anything now):

## ## End Default Options ##


### END DEBIAN AUTOMAGIC KERNELS LIST ###

title 1. Ubuntu 7.10 Gutsy Gibbon
root (hd0,5)
kernel /boot/vmlinuz-2.6.22-14-generic root=/dev/sda6 ro quiet splash
initrd /boot/initrd.img-2.6.22-14-generic
quiet
savedefault

title 2. Ubuntu 7.10 (recovery mode)
root (hd0,5)
kernel /boot/vmlinuz-2.6.22-14-generic root=/dev/sda6 ro single
initrd /boot/initrd.img-2.6.22-14-generic

title 3. Ubuntu, memtest86+
root (hd0,5)
kernel /boot/memtest86+.bin
quiet

title 4. Windows Vista
root (hd0,2)
savedefault
makeactive
chainloader +1

title 5. Dell Diagnostic System Utility
root (hd0,0)
savedefault
makeactive
chainloader +1


lwpack@lwpack-pc:~$ sudo fdisk -l
Password:

Disk /dev/sda: 320.0 GB, 320072933376 bytes
255 heads, 63 sectors/track, 38913 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

Device Boot Start End Blocks Id System
/dev/sda1 1 6 48163+ de Dell Utility
/dev/sda2 7 1312 10485760 7 HPFS/NTFS
/dev/sda3 * 1312 4499 25603305+ 7 HPFS/NTFS
/dev/sda4 4500 38913 276430455 5 Extended
/dev/sda5 4500 29995 204796588+ 7 HPFS/NTFS
/dev/sda6 * 29996 38548 68701941 83 Linux
/dev/sda7 38549 38913 2931831 82 Linux swap / Solaris
lwpack@lwpack-pc:~$



# /etc/fstab: static file system information.
#
# <device> <mount point> <file system> <options> <dump> <pass>

# proc
proc /proc proc defaults 0 0

# /dev/sda3 (Vista Partition)
# /dev/sda3 /media/vista ntfs-3g defaults,noauto,user,uid=1000,gid=1000,umask=0 0 0

# /dev/sda5 (NTFS Data Partition)
/dev/sda5 /media/ntfs ntfs-3g defaults,user,uid=1000,gid=1000,umask=0 0 0

# /dev/sda6 (Linux Root Partition)
/dev/sda6 / ext3 defaults,errors=remount-ro 0 1

# /dev/sda7 (Swap)
/dev/sda7 none swap sw 0 0

# /dev/scd0 (DVD +/- RW)
/dev/cdrom /media/cdrom0 udf,iso9660 user,noauto 0 0

# /dev/sdb1 (Thumbdrive)
/dev/sdb1 /media/thumbdrive vfat defaults,user,quiet,shortname=mixed,uid=1000,gid=1 000,umask=077,iocharset=utf8 0 0

[wildpossum]

OK I am a SuSE User, but generally you need to modify the menu.1st file in "/boot/grub" directory, check the /etc/fstab entries and then reboot your system.

So, get your distribution CD/DVD, and:

A> Boot into a rescue system.

As all the original disk partitions will not be mounted, because the rescue system operates totally out-of-memory.
B> Generate a new mount directory point (e.g.: "mkdir /mnt/disk1")

C> Mount the root disk partition (e.g.: "mount -t ext3 /dev/sda6 /mnt/disk1")

D> Edit the file "/mnt/disk1/boot/grub/menu.1st" to bring it back to your original setup.

E> Check the /etc/fstab (File System Table) by "cat /mnt/disk1/etc/fstab"
If it's OK, continue on; If not, then edit it to get the correct settings as you outlined in your original post.

F> Run "shutdown -rf -now" to nicely shutdown and automagically reboot your system, and you should be fine.

Enjoy

[devils casper]

Boot up from LiveCD and mount /dev/sda6 partition. Check the contents of /boot folder. Note down vmlinuz filename and add a new entry in /boot/grub/menu.lst file.

Boot up from LiveCD, open Terminal and execute this

mkdir ubuntu
sudo mount -t  ext3 /dev/sda6  ubuntu
cd ubuntu
ls boot

Note down vmlinuz file name. Let say, its vmlinuz-2.6.25-16-generic. Edit boot/grub/menu.lst file.

sudo nano boot/grub/menu.lst

title Ubuntu Hardy Heron
root (hd0,5)
kernel /boot/vmlinuz-2.6.25-16-generic root=/dev/sda6 ro quiet splash
initrd /boot/initrd.img-2.6.25-16-generic
quiet
savedefault

Press Ctrl+X, Y and hit Enter key to save file.

[lwpack]

I just tried that and it didn't work. Here is my /boot folder:

ubuntu@ubuntu:~/ubuntu$ ls boot
grub initrd.img-2.6.17-11-generic.bak
initrd.img-2.6.17-10-generic.bak memtest86+.bin
ubuntu@ubuntu:~/ubuntu$

Another thing that bothers me is that the version that the /boot folder lists is an old one.

[lwpack]

This was the entry I added to /boot/grub/menu.lst that didn't work:

title Ubuntu
root (hd0,5)
kernel /boot/vmlinuz-2.6.17-11-generic root=/dev/sda6 ro quiet splash
initrd /boot/initrd.img-2.6.17-11-generic
quiet

[devils casper]

AFAIK, Ubuntu Hardy has 2.6.25.x kernel. I would suggest you to backup data and do fresh install of Hardy.

[lwpack]

Arggg...is there really no other way? Luckily my data is on another partition. But is there a way to save my settings? It will be a pain to do a fresh install. Any ideas as to why things went wrong? I updated via update manager. Anyways, thank you for the help.

[lwpack]

Arggg...is there really no other way? Luckily my data is on another partition. But is there a way to save my settings? It will be a pain to do a fresh install. Any ideas as to why things went wrong? I updated via update manager. Anyways, thank you for the help.

[daark.child]

Ubuntu 8.10 ships with kernel 2.6.24. It seems like the new kernel was not properly installed during the upgrade. If you do not want to completely reinstall, boot from the live cd, run gnome-terminal and do the following

sudo -s
mkdir /mnt/sda6
mount /dev/sda6 /mnt/sda6
chroot /mnt/sda6
aptitude update
aptitude install linux-generic

If that works, you will then need to look at your /mnt/sda6/boot/grub/menu.lst and check if there is a new grub entry for the kernel you installed. If not, then Look in /mnt/sda6/boot for the kernel and initrd names and version numbers, then create a new grub menu entry. Reboot and then see if you can boot into Ubuntu.

[lwpack]

ok, I will try that, but first I'll have to download the live cd. I'll let you know how it goes. Thanks.