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Have some problem installing gentoo on a chromebook..
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jeffzheng002
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Joined: 27 Sep 2015
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PostPosted: Sun Sep 27, 2015 9:22 pm    Post subject: Have some problem installing gentoo on a chromebook.. Reply with quote

Hi, I am really new to gentoo and trying to install gentoo on Acer C720 chromebook with Chrome OS. I am following the handbook to install it but stuck on the very first step. Since there is no CD-ROM, i am using a bootable USB to carry minimal install media. So I am basically following this instruction http://www.ideatoworking.com/Blogs/ID/21/How-To-Easily-Install-Gentoo-On-Acer-C720-Chromebook. After selecting key map, it fails to mount devices as root. The error messages are,
Code:
!!Media not found
!!could not find CD to boot, something else needed!
Could not find the root block device in .
Please specify another value or: -press enter for the same -type "shell" for a shell -type "q" to skip
root block device()::

When i use ash to cd into /dev, there are sda files there, so I enter sda2 or sda1, but neither works. I thought I might need to do partition in ChromeOS (I am really noob), I reboot into Chrome OS, and use cfdisk to make a new partition and make the file system and all that. But still doesn't work. I check /dev/fstab, but there is nothing for some reason.

display error
Code:
mount:mounting /dev/sda15 on /newroot failed : Device or resource busy


I searched forums there are some same problems, but the solutions do not apply to my situation. Some on help me please! 8O 8O
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Logicien
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Joined: 16 Sep 2005
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Location: Montréal

PostPosted: Sun Sep 27, 2015 10:04 pm    Post subject: Reply with quote

This problem is typical to the use of an Iso9600 image with a bootable Usb maker program like Unetbootin. My experience tell me to not use a program like this and just copy the iso image bit to bit into the Usb key with a program like dd or dcfldd using Linux or BSD.

Most if not all of the Linux distributions images are hybrids. They can serve to be burn on a cd/dvd and to the use with a usb key. An Iso9600 file is hybrid if it have a partitions table. It can be verify by using Fdisk on the image
Code:
fdisk -l /path/to/the/iso9660.iso

If the image is not hybrid, a bootable Usb maker program is necessary. For me Unetbootin work, if the key have no partitions (table) and I format in Fat the totality of the key as one files system.

I ever had an Arm Chromebook. It say to not use the Usb 3 connector to boot a restauration key.
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