ubuntu安装问题

SquashfsErrors：

 unable to boot from the Ubuntu LiveCD, due to SquashFS errors like this:

SQUASHFS error: sb_bread failed reading block 0x9d7f3SQUASHFS error: Unable to read fragment cache block [275faa28]SQUASHFS error: Unable to read page, block 275faa28, size 23a7

method1:adding the ide=nodma or acpi=off allowed them to work around this issue

method2:

You can add those lines to the grub entry, either in the grub.conf file or either entering letter 'e' on the grub menu and after editing Control+x to boot:

Add to the grub line: 

all_generic_ide pci=nommconf

Add to the kernel line: 

ide=nodma acpi=off