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authorbnewbold <bnewbold@robocracy.org>2015-01-11 17:42:38 -0800
committerbnewbold <bnewbold@robocracy.org>2015-01-11 17:42:38 -0800
commit29675a901b11409f948415b2514d1db9e6bbdc56 (patch)
tree3caf8ab619b0771183e6bc73abaf7d9fe1caf627
parent643f4ec9208c047f61bb0eb76a62e2d9399571c3 (diff)
downloadnovena-guide-29675a901b11409f948415b2514d1db9e6bbdc56.tar.gz
novena-guide-29675a901b11409f948415b2514d1db9e6bbdc56.zip
tasks: more SATA notes
-rw-r--r--tasks.rst49
1 files changed, 43 insertions, 6 deletions
diff --git a/tasks.rst b/tasks.rst
index 4cabfa4..067188b 100644
--- a/tasks.rst
+++ b/tasks.rst
@@ -11,11 +11,16 @@ These instructions will result in a system that boots u-boot and the Linux
kernel from the internal microSD slot, then loads the rootfs and entire
userland operating system from an ext4 partition on a SATA hard disk.
+In addition to increased disk capacity, using a SATA disk as a rootfs should
+vastly improve disk I/O and thus general system performance.
+
Connect the SATA disk while the system is powered down, then boot up from the
microSD card. Note that there are two SATA-like connectors on the Novena
mainboard: one is for power from the battery board, and the other is the actual
SATA connection. It isn't possible to connect to the wrong port because the
-polarities are flipped.
+polarities are flipped. It's strongly recommended to use some form of an
+enclosure or mechanical support to prevent the SATA disk from coming detatched
+while in use, which could obviously result in data loss.
First make sure required tools are installed::
@@ -36,20 +41,52 @@ setting (in sata-install.sh) to '--mirror
"http://127.0.0.1:3142/http.debian.net/debian"' (the default is a debian mirror
in Hong Kong). We recommend copying ``sata-install.sh`` to ``local-install.sh``
and making changes there. See the `novena-image.sh documentation
-<http://kosagi.com/w/index.php?title=Novena_Image_script>`_ for more details on
-how to, eg, auto-populate the kosagi signing key into the new image.
+<http://kosagi.com/w/index.php?title=Novena_Image_script>`_ for more details.
+
+To configure the kosagi repositories by default, you can download the
+kosagi-repo debian package and kosagi signing key with::
+
+ # WARNING: this isn't a secure way to verify the signing key
+ gpg --keyserver keyserver.ubuntu.com --recv-keys 03C7B7EC
+ gpg --export 03C7B7EC > kosagi.key
+ # WARNING: https is not available for this server
+ wget http://repo.novena.io/repo/pool/main/k/kosagi-repo/kosagi-repo_1.0-r1_all.deb
+ wget http://repo.novena.io/repo/pool/main/n/novena-eeprom/novena-eeprom_2.1-1_armhf.deb
+ wget http://repo.novena.io/repo/pool/main/n/novena-firstrun/novena-firstrun_1.4-r1_all.deb
If you are running from the microSD card and have limited space, you'll
probably want to cull down the default installed package list significantly.
+Here is an example ``local-install.sh``::
+
+ #!/bin/bash
+ if [ -z $1 ]
+ then
+ echo "Usage: $0 [device]"
+ echo "E.g. $0 /dev/sda"
+ exit 1
+ fi
+
+ echo "Constructing a disk image on $1"
+ exec sudo ./novena-image.sh \
+ -d $1 \
+ -m "http://127.0.0.1:3142/http.debian.net/debian" \
+ -t sata \
+ -s jessie \
+ -k kosagi.key \
+ -a kosagi-repo_1.0-r1_all.deb \
+ -a novena-eeprom_2.1-1_armhf.deb \
+ -a novena-firstrun_1.4-r1_all.deb \
+ -l "sudo openssh-server ntp ntpdate \
+ vim powermgmt-base i2c-tools"
When ``local-install.sh`` looks good, run the script::
# WARNING: VERY DANGEROUS COMMAND!
sudo ./local-install.sh /dev/sda
-To actually boot from SATA we need to set a flag in EEPROM. Run
-``novena-eeprom`` and take note of the Features list, then add ``sataroot`` to
-the list and write it::
+To actually boot from SATA you must set a flag in EEPROM. Run ``novena-eeprom``
+and take note of the Features list, then add ``sataroot`` to the list and write
+it::
# Edit this list for your board
novena-eeprom -f es8328,pcie,gbit,hdmi,eepromoops,sataroot -w