- On powering up your Chromebook (developer mode sceen) can switch with
CTRl+Dto Chrome or
One problem was that external usb devices did not auto mount in Gallium, i.e they were not available in the file manager before I mounted them manually via terminal.
Here is the fix, thanks to /u/archelay
sudo mv /etc/udev/rules.d/99-hide-disks.rules /etc/udev/rules.d/99-hide-disks.bak
If you used chrx, try removing “/etc/udev/rules.d/99-hide-disks.rules”… Chrx puts it there to ignore ChromeOS partions, which is fine if your root disk is “sda”, but cb3-111 has eMMC, which kernel calls mmcblk0. So, when you insert flash drive it is named “sda” and is being ignored.
As you can see from the quote this is not an issue but a slighty annoying security precaution.