[CentOS] pen drive, hard disk, cd not being detected

I am working in Centos5.5. Pen drive, hard disk, cd are not being
recognised. During booting, "mounting local filesystems [failed]" is
displayed among other errors which I am unable to see as the messages
proceed fast. Are these messages stored in some file, so that I can check
them and report all the errors that are displayed during booting.
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