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random number as file owner

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Operating Systems Linux random number as file owner
# 1  
Old 01-28-2009
random number as file owner
Dear all,

I get the situation from my office but i cannot think what is happening. please give me some advise.

1. some file owner and group is changed to a very long number
2. i login as root. when i touch a file or operate on the file like chown, cp, the response is "Read-only file system". even i operate in the root directory.

Thank you very much.
Rick Wong
# 2  
Old 01-29-2009
Sometimes tar files will create foreign userids. However, this sounds like a corrupt filesystem. Can you boot the system into "single-user" mode and run "fsck -n" on this filesystem?
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