If you already have a USB from a prior install you can do the following to ‘reset’ the machine.
- login with root (no password)
# lsblk mmcblk0 |-mmcblk0p1 16M <--- boot |-mmcblk0p2 4G <--- root `-mmcblk0p3 10.7G <--- home
- mount boot, root, and home
mkdir -p {boot,root,home}
mount /dev/mmcblk0p1 boot
mount /dev/mmcblk0p2 root
mount /dev/mmcblk0p3 home
cp fstab root/etc/fstab
cd root rm -r * cd ../boot rm -r * cp -a /boot/* .
cd tar xfz new_root.tgz -C root
tmp, log, and netctl
cp fstab root/etc/
- edit
resolv.conf
nameserver 8.8.8.8
- update pacman DB
pacman -Sy
- install Awesome, git, etc…
pamcan -S awesome git openssh autocutsel conky vim postgresql glibc xclip
Make two USB’s Tar one up into the other Download and flash the u-boot prep the emmc drive copy boot onto emmc untar onto emmc drive root
Install Arch onto: Samsung xe303c12-a01ca
hold ESC-<refresh> and tap power button C-d ENTER
After 20 seconds or so you’ll hear 2 beeps. It’ll flash and a warning message will come up about voiding warranty. That will last about 30 seconds. Then wait while it reboots, can take 11 mins
- 1 X Samsung ARM Chromebook
- 2 X USB 2 thumb drive 4 -> 16 GB
We will call these USB drives MAIN and TAR. The reason we have the TAR USB is so we can tar up the root filesystem on MAIN without it actively being mounted as the current root file system.
Notes:
You may have difficulty booting USB/SD-Cards > 16 GB.
You can only boot from the USB 2 port NOT the USB 3 port.
Follow the [http://www.ifixit.com/Teardown/Samsung+Chromebook+11.6+Teardown/12225 ifixit instructions], to ensure the metallic ring-shaped sticker is removed.
login and do the one time signup/config.
On both the USB thumb drives, MAIN and TAR, install and boot Arch using the [http://archlinuxarm.org/platforms/armv7/samsung/samsung-chromebook#qt-platform_tabs-ui-tabs2 already established method].
NOTE You can copy from chrome OS web page with Ctrl-C and then paste into the Chrome OS shell with Ctrl-Shift-V. (This will save you time!!!)
root is the login, no password.
# pacman -Syu
# pacman -S flashrom-google linux-chromebook gptfdisk wget libftdi-compat
# sgdisk -Z /dev/mmcblk0
- Confirm no partitions:
# lsblk
These correspond to:
| 1 | boot |
| 2 | root |
| 3 | home |
# sgdisk -n 1:0:+16m /dev/mmcblk0 # sgdisk -n 2:0:+4G /dev/mmcblk0 # sgdisk -n 3:0 /dev/mmcblk0
c** Make the filesystems:
# mkfs.ext2 /dev/mmcblk0p1 # mkfs.jfs /dev/mmcblk0p2 # mkfs.jfs /dev/mmcblk0p3
# cd # mkdir boot # mount /dev/mmcblk0p1 boot # cp /boot/vmlinux.uimg boot # umount boot
- Remove both your ‘MAIN’ USB thumb drive, and your SD card. Insert
your ‘TAR’ USB drive and boot to it.
- After booted, plug in your first ‘MAIN’ USB and follow the below
procedure to tar your rootfs system:
# cd # mkdir tar-root # mount /dev/sdb3 tar-root
# mkdir emmc # mount /dev/mmcblk0p2 emmc
- Create an excludes file: (after entering ‘dev’ put in a new line
‘Enter’ and hit Ctrl-d to end ‘cat’ command)
# cd tar-root # cat > excludes-file opt/backup/arch-full* tmp/* var/cache/pacman/pkg/ proc sys dev
# tar cpfz ../root.tgz -X excludes-file .
- untar to SD card:
# cd .. # tar xfz root.tgz -C emmc
The above command took 4m33s on my computer.
- Adjust the /etc/fstab on the SD card
cd emmc/etc vi fstab
# <file system> <dir> <type> <options> <dump> <pass> /dev/mmcblk0p1 /boot ext2 defaults 0 0 proc /proc proc defaults 0 0 /dev/mmcblk0p2 / jfs ro 0 1 /dev/mmcblk0p3 /home jfs rw,users,exec,noatime 0 2 tmpfs /tmp tmpfs defaults,noatime,mode=1777 0 0
- mount
home
cd ~ mkdir home mount /dev/mmcblk0p3 home
get /var/log/ and /var/tmp/ into a writable filesystem
cd ~/home/ mkdir -p var/tmp mkdir -p var/log cd ~/emmc/var rm -r tmp log ln -s ../home/var/tmp ln -s ../home/var/log
- move /root/emmc/etc/netctl to /root/emmc/home/etc/netctl
# cd ~/home # mkdir -p etc/netctl # cd ~/emmc/etc # mv netctl/* ~/home/etc/netctl # rm -r netctl # ln -s ../home/etc/netctl
- unmount the partitions:
# cd # umount emmc # umount home
(I wonder if at this point we shouldn’t try to boot from emmc??)
# shutdown -h now
- take MAIN USB out of computer
- boot AND go into u-boot prompt by hitting keys RIGHT AWAY
- From the u-boot prompt, enter the following to boot from emmc:
# setenv bootargs root=/dev/mmcblk1p2 rootfstype=jfs rootwait rw # mmc dev 1 # ext2load mmc 1:1 42000000 vmlinux.uimg # bootm 42000000
DO NOT FOLLOW DIRECTIONS BELOW, THEY ARE NOT COMPLETE
- download this file:
# wget http://goo.gl/RZ7THP
This is a shortened URL for:
https://www.dropbox.com/s/6pzvraf3ko14sz9/nv_image-snow.bin.gz
- rename it:
# mv RZ7THP nv_image-snow.bin.gz - uncompress it:
# gunzip nv_image-snow.bin.gz - read and save off your original image:
# flashrom.google -p linux_spi:dev=/dev/spidev1.0 -r origial_image-snow.bin - Test flashing (writing) the original ROM you just backed up
# flashrom.google -p linux_spi:dev=/dev/spidev1.0 -w origial_image-snow.bin
If you see messages like:
“Block protection could not be disabled!”
Then the conducting metal ring is still acting. When i left the bottom of my laptop off it worked for me. I think the back middle screw on the bottom causes the contact to be remade. So i just flash the bios with the back barely on.
- flash the new image {{ic|nv_image-show.bin}}:
# flashrom.google -p linux_spi:dev=/dev/spidev1.0 -w nv_image-snow.bin - Powercycle. Hold down {{ic|a}} while powering up to get into a u-boot prompt.
Once you are flashed with u-boot, you will need to create a SD card that boots.
- From the u-boot prompt, enter the following to boot from SD card:
# setenv bootargs root=/dev/mmcblk1p2 rootfstype=jfs rootwait rw # mmc dev 1
After this step I get the following error message:
ERROR: v7_dcache_inval_range - stop address is not aligned - 0xbda3c4c8 mmc_init err 0, time 22306 mmc1 is current device
Don’t worry about the above error message, it is innocuous.
# ext2load mmc 1:1 42000000 vmlinux.uimg # bootm 42000000
You should now be booted into your SD card.
<u>Write to eMMC</u>
After you are booted into your SD card from the above steps you will want to repeat the steps so you can boot from your eMMC, and not need an SD or USB hanging out from your computer.
Keep in mind the steps you did above to device: mmcblk1, aka,
your SD card. You will want to change the device to: mmcblk0,
aka, your eMMC.
In quick summary do:
- zero out the device
- create the two partitions
- format the two partitions
- setup the boot partition
- setup the root partition
After you have copied over your root partition make sure to edit your:
/etc/fstab
so you have a line like:
/dev/mmcblk0p2 / ext4 defaults,noatime 0 1
# setenv arch_boot 'setenv bootargs root=/dev/mmcblk0p2 rootfstype=jfs rootwait rw; mmc dev 0; ext2load mmc 0:1 42000000 vmlinux.uimg; bootm 42000000' # setenv bootcmd 'run arch_boot' # saveenv # reset
This should now boot into your eMMC, No need to remove USB in a rush, it’ll be ignored.
restore your uboot environment with:
env default -f saveenv reset
this is the original value of the bootcmd, to boot from usb you can do:
then when u r ready to start booting from emmc again u do:
after you boot into emmc, enable wireless
wifi-menu mlan0
# mount / -o remount,rw
pacman -S –needed emacs chromium base-devel xorg-server xorg-server-utils xorg-xinit xorg-twm xorg-xclock xterm xf86-video-fbdev ttf-dejavu conky chromium-pepper-flash awesome iw wpa_supplicant wpa_actiond slim xfce4 xf86-input-synaptics zsh sudo git rxvt-unicode python-virtualenvwrapper w3m transmission-gtk rsync xclip truecrypt glibc ctags weechat
# systemctl enable [email protected]
try running the desktop manager with:
% startxfce4
flash: chromium-pepper-flash
ttf-dejavu: gives all the special characters so you don’t have a bunch of square blocks where you’d normally have another character.
conky: give you status information about your computer
I don’t think we need package: xf86-video-armsoc
- copy over ssh priv/pub keys to root on new computer
- clone
ft.home.dir.gitinto root - create fenton user:
useradd -m -g users -s /usr/bin/zsh fenton passwd fenton - tar & extract ft.home.dir into fenton home dir
- link .aliases
ln -s .aliases_desktop .aliases - enable slim
# systemctl enable slim.service
edit: /etc/slim.conf enable user and auto login
- update sudo
- make sure ~fenton/.xinitrc is correct
- make sure awesome config file is correctly linked at:
~/.config/awesome/rc.lua - make sure conky is correctly linked at:
~/.conky/ - reboot
- make sure
xrdbis run. See bottom of~/.Xresources - launch emacs and let it down load everything…
- setup
/etc/resolv.conf
nameserver 8.8.8.8 nameserver 8.8.4.4
- timezone
sudo ln -s /usr/share/zoneinfo/America/Vancouver /etc/localtime
This has the following:
- urxvt copy and paste
/usr/lib/urxvt/perl/clipboard, get copy and paste working with
.Xresources commands. See:
https://bbs.archlinux.org/viewtopic.php?pid=750951#p750951
You also need package: xclip.
cd bin/root_files tar cvf r.tar * sudo mv r.tar / cd / sudo tar xvf r.tar
put:
if [ -n "$DISPLAY" ] ; then
xset s off
xset -dpms
fi
in: ~/.zshrc
(model: snow clear e-j 7844)
After you’ve successfully installed arch linux, you can reboot and at
the splash screen type: C-u to boot from the usb.