Home » Troubleshooting » USB Drive Disappears from Removable Storage on XenServer after a Reboot

USB Drive Disappears from Removable Storage on XenServer after a Reboot

Quick fix for an annoying problem I ran across where the removable storage no longer shows the attached usb drives after a reboot under XenServer 5.6. Pop open a console window on your XenServer host:

modprobe -r usb_storage … this removes the usb_storage kernel driver

modprobe usb_storage … this reinstalls the usb_storage kernel drives

That should get you your drives back and if you don’t see them then just do a rescan.

xe sr-list | grep -i removable -B 1 … use this to find the UUID of your removable storage SR

xe sr-scan uuid=<uuid of removable storage> … your usb drives should be showing up now ready to be attached to your VM

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2 Comments

  1. Mnpltyperhtysrwmcpjggnwuefj says:

    Removeable is spelled wrong. Great tip though.

  2. jefferyland says:

    Thanks for the feedback! Merriam-Webster allows that both removable and removeable are acceptable spellings. — re·mov·able also re·move·able adjective

    Integrated spellcheck errs on the side of removable though.

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