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I've installed Ubuntu 11.10 on an external USB (2.0) Hard Drive (/dev/sdb1) but when Ubuntu starts I get a message that says:

ata_id[279]: HDIO_GET_IDENTITY failed for '/dev/sdb': Invalid argument

where I made a mistake? The first HD contains Windows 7 (the official OS of my packard bell notebook).

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2 Answers 2

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This is a warning from hdparm as it can have problems communicating with external usb hard drives, so you can ignore that warning.

Source: 1, 2

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I am getting the same error on a fresh install of Ubuntu 12.04 on an external USB hard disk.

The message is displayed for ~5 sec at boot but ubuntu does boot and run properly after that. I have also noticed some data loss but can't say for certain if its connected to this error.

According to to other help threads on the net this error only appears when Ubuntu is installed on an external USB drive.

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  • I have no issues with my external hard disk, which is a Seagate GoFlex 2 TB disk with GPT.
    – nanofarad
    Jul 20, 2012 at 14:13

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