Related question: Why does integrity check fail for the 12.04.1 Alternate ISO?
I downloaded and wrote ubuntu-12.04.3-server-amd64.iso to a USB key, but when I boot from it and select "Check disc for defects", I get the error: "The ./boot/grub/efi.img file failed the MD5 checksum verification..."
I'm using OS X, so the steps for writing the ISO to the USB key are as follows:
hdiutil convert -format UDRW -o ubuntu-12.04.3-server-amd64.img ubuntu-12.04.3-server-amd64.iso
sudo dd if=ubuntu-12.04.3-server-amd64.img.dmg of=/dev/rdisk1 bs=1M
diskutil eject /dev/disk1
The MD5 for the ubuntu-12.04.3-server-amd64.iso is OK,
md5 ubuntu-12.04.3-server-amd64.iso
gives
MD5 (ubuntu-12.04.3-server-amd64.iso) = 2cbe868812a871242cdcdd8f2fd6feb9
which is the same as the MD5 on the Ubuntu website.
Is this the same issue as the question linked above? Can I proceed OK?
./goot/
coming from? Or did you mean./boot/
?