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  #16  
Old 29th May 2010, 02:17 PM
codingfreak Offline
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Re: No Root Device Found, Boot Failed with Fedora 12

Quote:
Alas, last night boredom got the better of me and I decided to do a fresh install of the official F13 final release. Installation went flawlessly and upon reaching the desktop for the first time one of the first orders of business was installing the rpmfusion repositories and doing a system update. Once that finished I rebooted and was horrified to see the same error that you had.
Same boredom in late night made me try something new


I started to boot in rescue mode using FEDORA 12 DVD. Selected the options like Language and Keyboard type. Selected 'NO' for setting up network interface.

Now I got an option saying
Quote:
The rescue environment is about to find and mount the filesystems from your hard disk Fedora installation.
I selected continue which resulted in a error saying 'You dont have any Linux Partitions ..... ' and moved into a shell.

Now I tried the command chroot /mnt/sysimage. Which resulted in error saying

Quote:
chroot:failed to run command '/bin/sh'. No such file or directory.
When I checked /mnt/sysimage directory it is empty

Now I tried the command blkid which outputted something like
Quote:
/dev/loop0
/dev/sda2
/dev/sda5
/dev/sda6
/dev/sda7: UUID='cbceef0a-647a-48f4-8980-dba001423287' SEC_TYPE="ext2" TYPE="ext3"
/dev/sda9: swap
Strangely fdisk -l lists more partitions
Quote:
/dev/sda1
/dev/sda2
/dev/sda5
/dev/sda6
/dev/sda7:
/dev/sda8
/dev/sda9: swap
Where /dev/sda8 has the linux root partition but not listed for blkid command

I mounted /dev/sda7 and checked the grub.conf file ... where it has a different UUID than 'cbceef0a-647a-48f4-8980-dba001423287' for both the kernels. So I modified the value for kernel 1 as 'cbceef0a-647a-48f4-8980-dba001423287' and did reboot ...

when I try to boot in kernel 1 I got new error saying
Quote:
mount: /dev/sda7 already mounted or /sysroot busy
mount: according to mtab, /dev/sda7 is already mounted on /sysroot
My modification of UUID seems to be a blunder .... Is there anything I can try out to solve my problem ..........
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Last edited by codingfreak; 31st May 2010 at 09:42 AM.
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  #17  
Old 31st May 2010, 04:29 AM
codingfreak Offline
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Re: No Root Device Found, Boot Failed with Fedora 12

Hmmm I am waiting for the right solution that can solve the problem I am facing ....

Hmm time is running away as I am not able to use FEDORA on my laptop for more than 2 weeks
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  #18  
Old 31st May 2010, 04:38 AM
codingfreak Offline
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Restoring the FEDORA installation

Hi,

I have FEDORA 12 installed on my laptop in dual boot option with M$ VISTA. Recently I had a problem and I am not able to boot into FEDORA. http://forums.fedoraforum.org/showthread.php?t=245377

I would like to know is there anyway I can restore FEDORA 12 without disrupting the updates I have downloaded .. something like restoring the system

I dont have the backup for the settings and changes for the config files I have made
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  #19  
Old 31st May 2010, 07:24 AM
CSchwangler Offline
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Re: Restoring the FEDORA installation

The DVD has a rescue mode, if it is that what you are looking for.
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  #20  
Old 31st May 2010, 07:33 AM
codingfreak Offline
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Re: Restoring the FEDORA installation

I already tried "RESCUE MODE" option in FEDORA 12 ... and it does not detects linux partitions .... but fdisk -l does show the linux partitions.

For more info checkout my reply - http://forums.fedoraforum.org/showpo...9&postcount=16
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  #21  
Old 31st May 2010, 08:19 AM
CSchwangler Offline
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Re: Restoring the FEDORA installation

Quote:
Originally Posted by codingfreak View Post
I already tried "RESCUE MODE" option in FEDORA 12 ... and it does not detects linux partitions .... but fdisk -l does show the linux partitions.

For more info checkout my reply - http://forums.fedoraforum.org/showpo...9&postcount=16
Its actually not very useful to discuss the same topic in two different threads.
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  #22  
Old 31st May 2010, 09:37 AM
glennzo Online
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Re: No Root Device Found, Boot Failed with Fedora 12

If you can list partitions with fdisk it should also show what type of partitions they are. Are there, as rescue mode says, no Linux partitions?
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  #23  
Old 31st May 2010, 09:44 AM
codingfreak Offline
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Re: No Root Device Found, Boot Failed with Fedora 12

Quote:
Originally Posted by glennzo View Post
If you can list partitions with fdisk it should also show what type of partitions they are. Are there, as rescue mode says, no Linux partitions?
Yeah ... In rescue mode it says it will automatically detect for partitions in that case I am getting error saying No Linux partitions found ...

After it redirects to SHELL prompt. There I have given fdisk -l command which lists all available partitions on my harddisk and it shows Linux partitions.
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  #24  
Old 31st May 2010, 09:47 AM
codingfreak Offline
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Re: Restoring the FEDORA installation

Quote:
Originally Posted by CSchwangler View Post
Its actually not very useful to discuss the same topic in two different threads.
Hmm I am not looking for the fix to solve my problem where My root device not geting detected .

I thought there might some other way where I can reinstall my OS without affecting updates or settings

Sorry if my question is NAIVE ....
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  #25  
Old 31st May 2010, 09:55 AM
glennzo Online
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Re: No Root Device Found, Boot Failed with Fedora 12

Once you do chroot /mnt/sysimage does ls /boot show any files?
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  #26  
Old 31st May 2010, 10:02 AM
glennzo Online
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Re: Restoring the FEDORA installation

Hello CodingFreak. I tend to agree with CSchwangler in that there's no reason to have 2 threads by the same author on the same subject. That said, I'm going to merge this thread with the original.

At some point in time, it becomes clear that it would be quicker, easier and less time consuming to just reinstall the OS.
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Last edited by glennzo; 31st May 2010 at 10:06 AM.
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  #27  
Old 31st May 2010, 10:11 AM
codingfreak Offline
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Re: No Root Device Found, Boot Failed with Fedora 12

Quote:
Originally Posted by glennzo View Post
Once you do chroot /mnt/sysimage does ls /boot show any files?
When I tried chroot /mnt/sysimage it resulted in error saying

chroot:failed to run command '/bin/sh'. No such file or directory.

I found that /mnt/sysimage is empty. I havent checked /boot .. I will cross-check it again today ...

---------- Post added at 02:41 PM CDT ---------- Previous post was at 02:40 PM CDT ----------

Quote:
Originally Posted by glennzo View Post
At some point in time, it becomes clear that it would be quicker, easier and less time consuming to just reinstall the OS.
Hmmm .. If re-installing is the only option I better go with Ubuntu .... as FEDORA 12 had some issue and FEDORA 13 has just started to roll ...
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  #28  
Old 31st May 2010, 11:15 AM
glennzo Online
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Re: No Root Device Found, Boot Failed with Fedora 12

You're free to go with the distribution of your choice. I'm just suggesting that at some point so much time and effort has been wasted in trying to fix a particular issue that it becomes clear that reinstalling would probably be the best choice. One can reinstall Fedora inside 30 minutes and spend a few more hours configuring it to one's liking or one can spend days trying to salvage remnants of a trashed system.

If you're using rescue mode and it tells you that there are no Linux partitions found that in and of itself should raise some red flags. Combine that with the fact that fdisk says that there are Linux partitions found and I'd say that something is clearly amiss.

If you want to stick with what you have and think that it is worth the time and effort then I suggest you read the GRUB manual and learn some basics on how to find out just where your boot loader is located and what you need to do to get it back.
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  #29  
Old 4th June 2010, 04:41 AM
codingfreak Offline
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Re: No Root Device Found, Boot Failed with Fedora 12

Hmmm ... until then I cant simply leave my LAPTOP with failed FEDORA 12 version ... so I should go with the flow .... saying BYE to F12
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  #30  
Old 9th June 2010, 08:51 PM
james.primrose Offline
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Re: No Root Device Found, Boot Failed with Fedora 12

I get 'no root device found sleeping forever' business after an attempt to preupgrade.

Trying recovery DVD disk did not find Linux. Here is what I've done so far (info gleaned from about a dozen other forums)...

Looking at this does anyone have any ideas?

I'd really prefer not to wipe out the machine (as seems to be the going advice).


Starting shell...
bash-4.1# fdisk -l

Disk /dev/sda: 320.1 GB, 320072933376 bytes
255 heads, 63 sectors/track, 38913 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0xb7c688ff

Device Boot Start End Blocks Id System
/dev/sda1 * 1 26 204800 83 Linux
Partition 1 does not end on cylinder boundary.
/dev/sda2 26 38913 312363841 8e Linux LVM
bash-4.1# blkid
/dev/loop0: TYPE="squashfs"
/dev/sda1: UUID="04233791-140d-46bf-ad92-e2b61c338aea" TYPE="ext4"
/dev/sda2: UUID="rht4mi-7JGF-p43G-Zd3k-3c5F-30aU-NITj6r" TYPE="LVM2_member"
bash-4.1# grub
Probing devices to guess BIOS drives. This may take a long time.

GNU GRUB version 0.97 (640K lower / 3072K upper memory)

[ Minimal BASH-like line editing is supported. For the first word, TAB
lists possible command completions. Anywhere else TAB lists the possible
completions of a device/filename.]
grub> find /grub/grub.conf
find /grub/grub.conf
(hd0,0)
grub> root (hd0,0)
root (hd0,0)
Filesystem type is ext2fs, partition type 0x83
grub> setup (hd0,0)
setup (hd0,0)
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 (hd0,0)"... failed (this is not fatal)
Running "embed /grub/e2fs_stage1_5 (hd0,0)"... failed (this is not fatal)
Running "install /grub/stage1 (hd0,0) /grub/stage2 p /grub/grub.conf"... succeeded
Done.
grub> quit
quit
bash-4.1# parted /dev/sda
GNU Parted 2.1
Using /dev/sda
Welcome to GNU Parted! Type 'help' to view a list of commands.
(parted) p
Model: ATA WDC WD3200BEKT-0 (scsi)
Disk /dec/sda: 320GB
Sector Size (logical/physical): 512B/512B
Partition Table: msdos

Number Start End Size Type File system Flags
1 32.3kB 210MB 210MB primary ext4 boot
2 210MB 320GB 320GB primary lvm

(parted)
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