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Pbrobinson (talk | contribs) (Created page with "There's currently a number of ARM (currently all are ARMv7) based Chromebooks base on a few specific SoCs. They are: Samsung Exynos: snow (insert model details) CB2 NVIDIA...") |
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Samsung Exynos: | Samsung Exynos: | ||
* Snow (Exynos 5240) | |||
* CB2 (Exynos 5800, 1080p, microSD) | |||
CB2 | |||
NVIDIA Tegra K1: | NVIDIA Tegra K1: | ||
* nyan-big ( | * Acer nyan-big (1080p HD version, and non-HD variant) | ||
* HP | * HP nyan-blaze (discontinued) | ||
Rockchips: | Rockchips: | ||
* Asus flip | |||
===Preparing Fedora=== | |||
Start by downloading your Fedora, here we use the XFCE variant, but you can choose another at the hyperlink bellow: | |||
http://download.fedoraproject.org/pub/fedora/linux/releases/22/Images/armhfp/ | |||
<pre> | |||
cd /tmp | |||
wget http://mirror.pnl.gov/fedora/linux/releases/22/Images/armhfp/Fedora-Xfce-armhfp-22-3-sda.raw.xz | |||
unxz -v Fedora-Xfce-armhfp-22-3-sda.raw.xz | |||
</pre> | |||
Next you mount the raw disk image, and extract the rootfs. | |||
<pre> | |||
$ sudo kpartx -av /tmp/Fedora-Xfce-armhfp-22-3-sda.raw | |||
add map loop0p1 (253:10): 0 999424 linear /dev/loop0 2048 | |||
add map loop0p2 (253:11): 0 1000482 linear /dev/loop0 1001472 | |||
add map loop0p3 (253:12): 0 6835937 linear /dev/loop0 2001954 | |||
$ sudo dd if=/dev/mapper/loop0p3 of=/tmp/Fedora-22-Xfce-rootfs.ext4 conv=fsync | |||
6835937+0 records in | |||
6835937+0 records out | |||
3499999744 bytes (3.5 GB) copied, 6.73428 s, 520 MB/s | |||
$ sudo kpartx -dv /tmp/Fedora-Xfce-armhfp-22-3-sda.raw | |||
del devmap : loop0p3 | |||
del devmap : loop0p2 | |||
del devmap : loop0p1 | |||
loop deleted : /dev/loop0 | |||
</pre> | |||
At this point you may optionally shrink ext4 rootfs. | |||
<pre> | |||
$ sudo e2fsck -f /tmp/Fedora-22-Xfce-rootfs.ext4 | |||
e2fsck 1.42.12 (29-Aug-2014) | |||
Pass 1: Checking inodes, blocks, and sizes | |||
Pass 2: Checking directory structure | |||
Pass 3: Checking directory connectivity | |||
Pass 4: Checking reference counts | |||
Pass 5: Checking group summary information | |||
_/: 104380/213840 files (0.1% non-contiguous), 626133/854492 blocks | |||
$ sudo resize2fs -fM /tmp/Fedora-22-Xfce-rootfs.ext4 | |||
resize2fs 1.42.12 (29-Aug-2014) | |||
Resizing the filesystem on /tmp/Fedora-22-Xfce-rootfs.ext4 to 691002 (4k) blocks. | |||
The filesystem on /tmp/Fedora-22-Xfce-rootfs.ext4 is now 691002 (4k) blocks long. | |||
</pre> | |||
Label the rootfs, and apply a new UUID | |||
<pre> | |||
UUID=$(uuidgen) | |||
LABEL='ROOTFS' | |||
$ sudo tune2fs -U "$UUID" -L "$LABEL" /tmp/Fedora-22-Xfce-rootfs.ext4 | |||
tune2fs 1.42.12 (29-Aug-2014) | |||
</pre> | |||
Create | |||
<pre> | |||
$ truncate --size=7GiB /tmp/chromebook-xfce.raw | |||
$ sgdisk -a 8192 -n 1:0:+30M -t 1:7F00 -c 1:"KERN-A" /tmp/chromebook-xfce.raw | |||
$ sgdisk -a 8192 -n 2:0:+30M -t 2:7F00 -c 2:"KERN-B" /tmp/chromebook-xfce.raw | |||
$ sgdisk -a 8192 -n 3:0:+30M -t 3:7F00 -c 3:"KERN-C" /tmp/chromebook-xfce.raw | |||
$ sgdisk -a 8192 -n 4:0:+1G -t 4:8300 -c 4:"BOOT" /tmp/chromebook-xfce.raw | |||
$ sgdisk -a 8192 -n 5:0:+1G -t 5:8200 -c 5:"SWAP" /tmp/chromebook-xfce.raw | |||
$ sgdisk -a 8192 -n 6:0:0 -t 6:8300 -c 6:"ROOTFS" /tmp/chromebook-xfce.raw | |||
</pre> | |||
(to be continued) | |||
Revision as of 17:51, 23 October 2015
There's currently a number of ARM (currently all are ARMv7) based Chromebooks base on a few specific SoCs.
They are:
Samsung Exynos:
- Snow (Exynos 5240)
- CB2 (Exynos 5800, 1080p, microSD)
NVIDIA Tegra K1:
- Acer nyan-big (1080p HD version, and non-HD variant)
- HP nyan-blaze (discontinued)
Rockchips:
- Asus flip
Preparing Fedora
Start by downloading your Fedora, here we use the XFCE variant, but you can choose another at the hyperlink bellow: http://download.fedoraproject.org/pub/fedora/linux/releases/22/Images/armhfp/
cd /tmp wget http://mirror.pnl.gov/fedora/linux/releases/22/Images/armhfp/Fedora-Xfce-armhfp-22-3-sda.raw.xz unxz -v Fedora-Xfce-armhfp-22-3-sda.raw.xz
Next you mount the raw disk image, and extract the rootfs.
$ sudo kpartx -av /tmp/Fedora-Xfce-armhfp-22-3-sda.raw add map loop0p1 (253:10): 0 999424 linear /dev/loop0 2048 add map loop0p2 (253:11): 0 1000482 linear /dev/loop0 1001472 add map loop0p3 (253:12): 0 6835937 linear /dev/loop0 2001954 $ sudo dd if=/dev/mapper/loop0p3 of=/tmp/Fedora-22-Xfce-rootfs.ext4 conv=fsync 6835937+0 records in 6835937+0 records out 3499999744 bytes (3.5 GB) copied, 6.73428 s, 520 MB/s $ sudo kpartx -dv /tmp/Fedora-Xfce-armhfp-22-3-sda.raw del devmap : loop0p3 del devmap : loop0p2 del devmap : loop0p1 loop deleted : /dev/loop0
At this point you may optionally shrink ext4 rootfs.
$ sudo e2fsck -f /tmp/Fedora-22-Xfce-rootfs.ext4 e2fsck 1.42.12 (29-Aug-2014) Pass 1: Checking inodes, blocks, and sizes Pass 2: Checking directory structure Pass 3: Checking directory connectivity Pass 4: Checking reference counts Pass 5: Checking group summary information _/: 104380/213840 files (0.1% non-contiguous), 626133/854492 blocks $ sudo resize2fs -fM /tmp/Fedora-22-Xfce-rootfs.ext4 resize2fs 1.42.12 (29-Aug-2014) Resizing the filesystem on /tmp/Fedora-22-Xfce-rootfs.ext4 to 691002 (4k) blocks. The filesystem on /tmp/Fedora-22-Xfce-rootfs.ext4 is now 691002 (4k) blocks long.
Label the rootfs, and apply a new UUID
UUID=$(uuidgen) LABEL='ROOTFS' $ sudo tune2fs -U "$UUID" -L "$LABEL" /tmp/Fedora-22-Xfce-rootfs.ext4 tune2fs 1.42.12 (29-Aug-2014)
Create
$ truncate --size=7GiB /tmp/chromebook-xfce.raw $ sgdisk -a 8192 -n 1:0:+30M -t 1:7F00 -c 1:"KERN-A" /tmp/chromebook-xfce.raw $ sgdisk -a 8192 -n 2:0:+30M -t 2:7F00 -c 2:"KERN-B" /tmp/chromebook-xfce.raw $ sgdisk -a 8192 -n 3:0:+30M -t 3:7F00 -c 3:"KERN-C" /tmp/chromebook-xfce.raw $ sgdisk -a 8192 -n 4:0:+1G -t 4:8300 -c 4:"BOOT" /tmp/chromebook-xfce.raw $ sgdisk -a 8192 -n 5:0:+1G -t 5:8200 -c 5:"SWAP" /tmp/chromebook-xfce.raw $ sgdisk -a 8192 -n 6:0:0 -t 6:8300 -c 6:"ROOTFS" /tmp/chromebook-xfce.raw
(to be continued)