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Mods, feel free to move this if this is not the correct place to post, it's not an Arch problem, per se. I have an Acer C720 chromebook and I followed the directions for side-by-side installation (/dual boot) and have arch configured as I want.
The problem is that I would like to not have to press ctrl-l every time I boot to get into SeaBIOS, which boots to grub. I want to then add a menuentry for Chrome OS in grub. My partitions look like:
sudo parted /dev/sda print
Model: ATA SBe M2 SSD (scsi)
Disk /dev/sda: 120GB
Sector size (logical/physical): 512B/512B
Partition Table: gpt
Disk Flags:
Number Start End Size File system Name Flags
11 32.8kB 8421kB 8389kB RWFW
9 8422kB 8423kB 512B reserved
10 8423kB 8423kB 512B reserved
2 10.5MB 27.3MB 16.8MB KERN-A
4 27.3MB 44.0MB 16.8MB KERN-B
8 44.0MB 60.8MB 16.8MB ext4 OEM msftdata
13 60.8MB 62.9MB 2097kB BIOS boot partition bios_grub
12 128MB 145MB 16.8MB fat16 EFI-SYSTEM boot, esp
5 145MB 2292MB 2147MB ext2 ROOT-B
3 2292MB 4440MB 2147MB ext2 ROOT-A
1 4440MB 12.6GB 8185MB ext4 STATE msftdata
6 12.6GB 12.6GB 16.8MB KERN-C
7 12.6GB 120GB 107GB ext4 ROOT-C
Where sda7 is my arch partition.
os-prober does not detect Chrome OS. I tried creating a menuentry in /etc/grub.d/40_custom:
menuentry "Chromium OS" {
linux (hd0,2)/boot/vmlinuz quiet console=tty2 init=/sbin/init boot=local rootwait ro noresume noswap loglevel=1 noinitrd root=/dev/sda3 i915.modeset=1 cros_efi
}
which I found as an example for Chromium, not exactly Chrome OS and I have found no examples for ChromeOS specifically. I have tried modifying the root= portion to /dev/sda3 and /dev/sda5
I found other instructions on booting ChromeOS with a different menuentry
menuentry "ChromiumOS" {
insmod ext2
set root=(hd0,2)
linux /boot/vmlinuz root=/dev/sda3 rw noresume noswap i915.modeset=1 loglevel=1 quiet
initrd /boot/initrd.img
}
I am not very familiar with efi booting and what goes into it, but I am also not sure if that's what I need to look into. If I am missing something obvious, a link to the right wiki page would be great.
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