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Mati Apprentice
Joined: 02 Sep 2008 Posts: 172
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Posted: Fri Oct 26, 2012 4:31 pm Post subject: Could not mount specified ROOT partition. How to rescue sys? |
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Hi there,
first my system yesterday started to have strange I/O problems, afterwards no process could be instantiated, afterwards only a reboot was possible and
now the system complains with
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Could not mount specified ROOT, try again
Could not find the root block device in .
Please specify another value or: press Enter for the same, tpye 'shell' ...
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Nothing works anymore.
I used gparted to repair the xfs filesystem but it immediately complains with an error:
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The filesystem has valuable metadata changes in a log which needs to
be replayed. Mount the filesystem to replay the log, and unmo...
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i think the root partition is somehow defect, maybe the hard disk (its a notebook) is not working anymore.
How can i rescue the system or get it again to run? Which information do you need?
Thanks for any help |
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NeddySeagoon Administrator
Joined: 05 Jul 2003 Posts: 54096 Location: 56N 3W
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Posted: Fri Oct 26, 2012 6:14 pm Post subject: |
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Mati,
If this system used to work and you have done nothing, its has suffered a hardware failure.
It may be the HDD or the motherboard.
The line Code: | Could not find the root block device in . | should list all the block devices that the kernel can see.
In this case none.
If you have just made a new kernel, its missing the some code for your HDD controller on the motherboard.
What does lspci say. Has your HDD controller vanished from there? _________________ Regards,
NeddySeagoon
Computer users fall into two groups:-
those that do backups
those that have never had a hard drive fail. |
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Hypnos Advocate
Joined: 18 Jul 2002 Posts: 2889 Location: Omnipresent
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Posted: Fri Oct 26, 2012 9:13 pm Post subject: |
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Booting with sysrescuecd maybe useful here, to check the state of your hardware with a known "good" setup. Follow Neddy's suggestions from there. _________________ Personal overlay | Simple backup scheme |
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Mati Apprentice
Joined: 02 Sep 2008 Posts: 172
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Posted: Mon Oct 29, 2012 9:54 am Post subject: |
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Hi,
Quote: | If this system used to work and you have done nothing, its has suffered a hardware failure. |
Might be yes, but im not 100% sure. In fact, i did nothing - so you might be right.
Quote: | should list all the block devices that the kernel can see.
In this case none. |
correct yes.
Quote: | If you have just made a new kernel, its missing the some code for your HDD controller on the motherboard. |
i did nothing, no kernel rebuild, no emerge.
Quote: | What does lspci say. |
It says:
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/bin/ash: lspci: not found
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Anyway, i'm looking forward to any further help.
Thanks a lot! |
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NeddySeagoon Administrator
Joined: 05 Jul 2003 Posts: 54096 Location: 56N 3W
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Posted: Mon Oct 29, 2012 7:40 pm Post subject: |
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Mati,
Boot with a CD. SystemRescueCD is good but any liveCD will do. See if you can find your disk drives at all.
If they are there, try to mount the partitions - do you get any errors?
If the drives are missing, can you see the hard drive controller in the lspci output?
Did you do something thats easy to overlook - like leaving some USB storage connected?
This often causes the HDDs to be reordered. _________________ Regards,
NeddySeagoon
Computer users fall into two groups:-
those that do backups
those that have never had a hard drive fail. |
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Mati Apprentice
Joined: 02 Sep 2008 Posts: 172
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Posted: Mon Nov 05, 2012 9:39 am Post subject: |
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xfs_repair fixed the problem (from sysrescuecd). Seems that some inodes where mislinked...
thanks for help and suggestions. |
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