paul- wrote:
> Well then you are going to have to NFS mount the files on the tftp
> server. Also would require a ton of updates to our code.... from the
> location and mounting of the tftp boot drive to changing the path of all
> of the code that makes edits to the boot partition. It's all possible.
This is where I stand. No changes to pCP code, although I think the
pcp-variable DEVICE could be changed to point to the NFS share exporting
the boot partition, and the resize2fs and LMS(?) cgis use hardcoded
references to /dev/mmcblk0p1.
As it is, the interface looks by and large ok, attempts to mount or
dismount /dev/mmcblk0p1 fail, but saving to it works. Of course saving
to tce (ex- mmcblk02) work.
Cmdline.txt has 2 special parameters:
Code:
--------------------
nfsmount=172.17.71.10:/export/12345abc/TCE
nfsboot=172.17.71.10:/export/12345abc/BOOT:udp,vers=3,noatime
--------------------
- nfsmount is a true TCLinux bootcode, this is processed in
/etc/init.d/tc-config. This export contains what's in "/dev/mmcblk0p2"
and gets mounted under /mnt/nfs. It should support the form
<server>:<export>:<mount options> but the script only looks for some
special options (noping?) and doesn't apply generic ones, like udp.
- nfsboot is implemented in bootlocal.sh, in the same fashion as
tc-config. Except I apply the mount options... This export contains
what's in "/dev/mmcblk0p1", only for configuration changes, and is
mounted to /mnt/mmcblk0p1 to let pCP work (almost) normally. On the
server the export is bind-mounted to /tftp/12345abc to allow booting.
Here is bootlocal.sh:
Code:
--------------------
tc@test:~$ cat /opt/bootlocal.sh
#!/bin/sh
# put other system startup commands here
GREEN="$(echo -e '\033[1;32m')"
echo
echo "${GREEN}Running bootlocal.sh..."
#pCPstart------
/home/tc/www/cgi-bin/do_rebootstuff.sh 2>&1 | tee -a /var/log/pcp_boot.log
#pCPstop------
# NFS mounting. See http://forum.tinycorelinux.net/index.php?topic=19913.0
for i in `cat /proc/cmdline`; do
case $i in
nfsboot*)
# Allows to update pCP boot config over NFS
NFSBOOT=${i#*=}
BOOTMNT="/mnt/mmcblk0p1"
SERVER=$(echo $NFSBOOT | awk -F: '{ print $1 }')
DIR=$(echo $NFSBOOT | awk -F: '{ print $2 }')
OPTS=$(echo $NFSBOOT | awk -F: '{ print $3 }' | tr ',' ' ')
OPTS=$(echo defaults noauto nolock addr=${SERVER} ${OPTS} | tr ' ' ',')
echo "Creating directory ${BOOTMNT}"
sudo mkdir ${BOOTMNT} >/dev/null 2>&1
# pCP checks in fstab for device /dev/mmcblk itself so mounts fail...
# echo "Creating /etc/fstab entry for ${BOOTMNT} over NFS"
# ME="$0"
# sudo sh -c "cat << EOF >> /etc/fstab
## Added by $ME
#${SERVER}:${DIR} ${BOOTMNT} nfs ${OPTS} 0 0
#EOF
#"
# ... so instead we mount permanently as pCP won't mount/unmount
# if mounted already.
echo "Mounting ${SERVER}:${DIR} to ${BOOTMNT}"
sudo mount -t nfs -o ${OPTS} ${SERVER}:${DIR} ${BOOTMNT}
;;
nfsmount*)
# Keep pCP happy with a normal-looking SD mount
NFSMOUNT="/mnt/nfs"
TCEMNT="/mnt/mmcblk0p2"
echo "Creating directory ${TCEMNT}"
sudo mkdir ${TCEMNT} >/dev/null 2>&1
echo "Adding bind mount for ${TCEMNT}"
sudo mount -o bind ${NFSMOUNT} ${TCEMNT} >/dev/null 2>&1
;;
esac
done
--------------------
As you see my 1st intent was to add an entry for /mnt/mmcblk0p1 in fstab
and let pCP do the mount/dismount as usual. However
pcp_mount_mmcblk0p1_nohtml was failing because it looks for
/dev/mmcblk0p1, not /mnt/mmcblk0p1 in /etc/fstab.
I don't know if the bind mount of /mnt/nfs to /mnt/mmcblk0p2 makes any
difference. I thought it wouldn't hurt.
As it is, it's a bit hackish but I think it is operational. There is no
extra network traffic to speak of, once the system has booted. I'd like
to check SQ and sync with a version of pCP/piCore that has recent
firmwares allowing to net boot out-of-the-box. Would 3.20-beta be a
candidate?
3 SB 3 Libratone Loop, Zipp Mini iPeng (iPhone + iPad) LMS 7.9
(linux) with plugins: CD Player, WaveInput, Triode's BBC iPlayer by bpa
IRBlaster by Gwendesign (Felix) Server Power Control by Gordon
Harris Smart Mix, Music Walk With Me, What Was That Tune? by Michael
Herger PowerSave by Jason Holtzapple Song Info, Song Lyrics by
Erland Isaksson AirPlay Bridge by philippe_44 WeatherTime by Martin
Rehfeld Auto Dim Display, SaverSwitcher, ContextMenu by Peter Watkins.
------------------------------------------------------------------------
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