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Ubuntu 14.10 no caching page found on all hard drives 2 sata and two ide also same if I mount avusb drive

After upgraded from 14.04.1 and also from a clean install of 14.10

During boot I get error on all hard drives no caching page found. I never had this problem on Ubuntu 14.04.1 and below yet on 14.10 it exists and cripples the performance of the system?

The exact error during boot is:

A TPM error(7) occured Trying to read a pcr value

ata4 srst failed (errorno=-16)

sddd no caching mode page found sddd assuming disk write through sdde no caching mode page found sdde assuming disk write through

Any help please?

Ant Jackson
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1 Answers1

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This is not a serious error, it is not actually an error at all. All that this indicates is that your drive's SCSI mode pages don't contain an entry for caching. A mode page allows reading metadata related to the device, and changing the settings of the device, for example, to disable or enable write caching.

In this case, your device does not provide information about any underlying write caching mechanism. This could be for a variety of reasons, most likely that either the device may be passed through an interface which presents itself as a SCSI device, but does not expose any cache (for example, if you were exposing the drive using a USB enclosure), or the device may simply have no cache (although this seems to not be true for your particular device).

Source

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