Hi, I want to install archlinux on my samsung chromebook but I can't get past this step :
Get a root shell as described in the previous section.
Since ChromeOS will automatically mount any partitions it finds, unmount everything now:
umount /dev/mmcblk1*
Create a new disk label for GPT. Type y when prompted after running:
partx -t gpt -u /dev/mmcblk1
It says that the device is unmounted and when I try to create the disk label it cant read the partition table. Nothing works after that. What should I do?