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I have a mail server running Ubuntu 12.04. My server has a main 200GB hdd as the /, and other scsi hdd. As far as I recall, I used the 5 scsi hard drives for different mount points - swap, /usr, boot, and the rest I cannot recall.

Just yesterday, my /usr drive died... and it wont let me boot into the server. I've tried to skip mounting the /usr with the S option when I go to recovery drive, but the server still wont boot up. i need help badly because the server needs to be up and running ASAP.

Thank you for all the help.

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closed as too localized by Jorge Castro, Luis Alvarado Apr 12 '13 at 4:58

This question is unlikely to help any future visitors; it is only relevant to a small geographic area, a specific moment in time, or an extraordinarily narrow situation that is not generally applicable to the worldwide audience of the internet. For help making this question more broadly applicable, visit the help center.If this question can be reworded to fit the rules in the help center, please edit the question.

Are there any error messages when you boot? How did you know that /usr died? – qbi Dec 18 '12 at 7:06
It's a very bad idea to rely on so many individual drives. Disks can just fail. After you have fixed your server, move to a redundant array of disks (software RAID / mdadm) to be able to run with a failed drive. For now, just reinstall your server and migrate all data onto the new installation and get it running. – gertvdijk Dec 18 '12 at 10:23
This is not abandoned (which was the reasoning behind closing it as too localized); it has (my) upvoted answer, which means it's answered, and not abandoned. Let's reopen it. – Eliah Kagan Apr 13 '13 at 8:45

1 Answer 1

You can't really run Ubuntu without /usr. Without it, only single user mode is supported. Most of the software installed in the system is in /usr, including the software that provides the important services that the system provides. If you don't have a backup, reinstall the operating system.

As gertvdijk says, you should set things up so that the failure of a single hard drive never causes major problems.

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