Hello Thanks for the patch.
It is quite large, probably because it contains scripts shipped in one of the iscsi client packages. It also hardcodes a nameserver. Is there no parameter for nameserver yet? Can't it be obtained from dhcp? The iscsi names are also hardcoded. Shouldn't these be specified in the command line? Thanks Michal 2009/9/3 Pravin <shindepra...@gmail.com>: > Sorry, forgot to attach the patches in last email. > They are attached here. > > On Thu, Sep 3, 2009 at 2:41 PM, Pravin<shindepra...@gmail.com> wrote: >> Hi, >> Thanks for interest :-) >> >>> >>> i would be very, very much interested in patches to live-initramfs to >>> make iscsi booting out-of-the-box possible, and to live-manual to >>> document it. >>> >> >> I have created small patch for live-manual to which will give basic idea >> about how to use httpfs and iscsifs boot options. >> I am appending this patch with this email. >> >> However I had little problem with live-initramfs code. I could not >> understand >> how exactly it works, and the interaction between initramfs-tools and >> live-initramfs. >> I could not find any documentation about how I can use live-initramfs >> code to create >> custom initramfs for testing purpose. >> >> The way I work is by fetching the initramfs image from debian live cd, >> and modifying it, >> to support httpfs and iscsi booting. >> I have created a patch on diff between content of original initramfs >> and modified initramfs. >> I am appending that patch also with this email. >> The binary files that I have added/modified to the initramfs can be >> downloaded from following URLs. >> http://rom.etherboot.org/share/pravin/BKO/D/D/DL/httpfs/server/ >> http://rom.etherboot.org/share/pravin/BKO/D/D/DL/run-init >> http://rom.etherboot.org/share/pravin/BKO/D/D/DL/modules/ >> http://rom.etherboot.org/share/pravin/BKO/D/D/DL/iscsi/tools/ >> >> This patch is not yet perfect, and contain some code which was added >> for debugging purpose. >> >> I am trying to learn how live-initramfs creates initramfs. >> Any pointers to documentation and examples of such modification will >> be very helpful to me. >> >> Looking forward for feedback on these patches. >> Also let me know what should I do next to help in getting these >> features in debian live? >> >> Regards, >> -- Pravin >> >> ============================================= >> ============== Patch for live-manual ========= >> ============================================= >> diff --git a/xml/chapters/customization/bootup.xml >> b/xml/chapters/customization/bootup.xml >> index 8daca41..202e395 100644 >> --- a/xml/chapters/customization/bootup.xml >> +++ b/xml/chapters/customization/bootup.xml >> @@ -39,6 +39,7 @@ >> </para> >> </sect3> >> >> + >> <sect3> >> <title>Booting a Debian Live USB/HDD system from a USB stick with >> Grub</title> >> <para> >> @@ -79,6 +80,57 @@ initrd's script in which subdirectory to look for >> the SquashFS image. >> </sect3> >> </sect2> >> >> +<sect2 id="netboot"> >> +<title>Diskless booting over Network</title> >> +<para> >> +Network booting is specially useful when your system is not having >> harddisk, or hard disk >> +is currupted or you do not want to touch it. With netbooting option, >> user can boot entire >> +system over network. The only assumption is about network connection >> on user end. >> +</para> >> + >> +<para> >> +User need to have small gpxe image or some other way by which user >> can boot machine over network. >> +This image can be put on floppy or can be burned on NIC card. This >> script does the initialization >> +of hardware, connect to the boot server (eg. http://boot.kernel.org ) >> and fetches the kernel and >> +initramfs images. The actual booting is done by this downloaded >> kernel with help of initramfs image. >> +</para> >> + >> +<sect3> >> +<title>Booting a Debian Live over HTTP</title> >> +<para> >> +If the boot parameter <command>httpfs=URL-to-image</command> >> +is present then http boot is attempted. The URL provided as boot parameter >> +is used to find out if the image is "iso" or "squashfs". Depending on the >> +filename extension in the URL. >> +</para> >> +<para> >> +The reason behind providing support for both iso and squashfs is that, >> +even squashfs netbooting is little faster compared to is iso netbooting. >> +But iso http booting allows you to give the URL for iso image of any nearby >> +mirror, resulting much faster booting. >> +</para> >> +</sect3> >> + >> +<sect3> >> +<title>Booting a Debian Live over ISCSI</title> >> +If the boot parameter <command>iscsifs="URL-to-image"</command> >> +is present, then iscsi boot is attempted. The server port for iscsi can >> +be specifed as part of URL, this allows connections to iscsi servers >> +running on non-standard ports. ISCSIFS booting also expect one more boot >> +parameter, namely <command>target=target-name</command>. >> +The target name specified here is part of target name, which is used to >> +uniquely identify the target representing debian live iso image when there >> +are multiple disks hosted. This variable can contain the entire name >> of target, >> +or only part of target name which can uniquely identify the debian >> live iso disk >> +among all other exported disks. >> +<para> >> +</para> >> +</sect3> >> + >> + >> +</sect2> >> + >> + >> <sect2 id="splash"> >> <title>Splash screens</title> >> <para> >> ============================================= >> >> >> ============================================= >> ============== Patch for initramfs ========= >> ============================================= >> Binary files initrd_orig/bin/fusermount and initrd_new/bin/fusermount differ >> Binary files initrd_orig/bin/httpfs and initrd_new/bin/httpfs differ >> Binary files initrd_orig/bin/run-init and initrd_new/bin/run-init differ >> diff -rupN initrd_orig/etc/iscsi/initiatorname.iscsi >> initrd_new/etc/iscsi/initiatorname.iscsi >> --- initrd_orig/etc/iscsi/initiatorname.iscsi 1970-01-01 >> 01:00:00.000000000 +0100 >> +++ initrd_new/etc/iscsi/initiatorname.iscsi 2009-09-02 >> 23:37:57.000000000 +0200 >> @@ -0,0 +1,6 @@ >> +## DO NOT EDIT OR REMOVE THIS FILE! >> +## If you remove this file, the iSCSI daemon will not start. >> +## If you change the InitiatorName, existing access control lists >> +## may reject this initiator. The InitiatorName must be unique >> +## for each iSCSI initiator. Do NOT duplicate iSCSI InitiatorNames. >> +InitiatorName=iqn.1993-08.org.debian:01:74e6bd2d995f >> diff -rupN initrd_orig/etc/iscsi/iscsid.conf initrd_new/etc/iscsi/iscsid.conf >> --- initrd_orig/etc/iscsi/iscsid.conf 1970-01-01 01:00:00.000000000 +0100 >> +++ initrd_new/etc/iscsi/iscsid.conf 2009-09-02 23:37:57.000000000 +0200 >> @@ -0,0 +1,245 @@ >> +# >> +# Open-iSCSI default configuration. >> +# Could be located at /etc/iscsi/iscsid.conf or ~/.iscsid.conf >> +# >> +# Note: To set any of these values for a specific node/session run >> +# the iscsiadm --mode node --op command for the value. See the README >> +# and man page for iscsiadm for details on the --op command. >> +# >> + >> +################ >> +# iSNS settings >> +################ >> +# Address of iSNS server >> +#isns.address = 192.168.0.1 >> +#isns.port = 3205 >> + >> +############################# >> +# NIC/HBA and driver settings >> +############################# >> +# open-iscsi can create a session and bind it to a NIC/HBA. >> +# To set this up see the example iface config file. >> + >> +#***************** >> +# Startup settings >> +#***************** >> + >> +# To request that the iscsi initd scripts startup a session set to >> "automatic". >> +node.startup = automatic >> +# >> +# To manually startup the session set to "manual". The default is manual. >> +#node.startup = manual >> + >> +# ************* >> +# CHAP Settings >> +# ************* >> + >> +# To enable CHAP authentication set node.session.auth.authmethod >> +# to CHAP. The default is None. >> +#node.session.auth.authmethod = CHAP >> + >> +# To set a CHAP username and password for initiator >> +# authentication by the target(s), uncomment the following lines: >> +#node.session.auth.username = username >> +#node.session.auth.password = password >> + >> +# To set a CHAP username and password for target(s) >> +# authentication by the initiator, uncomment the following lines: >> +#node.session.auth.username_in = username_in >> +#node.session.auth.password_in = password_in >> + >> +# To enable CHAP authentication for a discovery session to the target >> +# set discovery.sendtargets.auth.authmethod to CHAP. The default is None. >> +#discovery.sendtargets.auth.authmethod = CHAP >> + >> +# To set a discovery session CHAP username and password for the initiator >> +# authentication by the target(s), uncomment the following lines: >> +#discovery.sendtargets.auth.username = username >> +#discovery.sendtargets.auth.password = password >> + >> +# To set a discovery session CHAP username and password for target(s) >> +# authentication by the initiator, uncomment the following lines: >> +#discovery.sendtargets.auth.username_in = username_in >> +#discovery.sendtargets.auth.password_in = password_in >> + >> +# ******** >> +# Timeouts >> +# ******** >> +# >> +# See the iSCSI REAME's Advanced Configuration section for tips >> +# on setting timeouts when using multipath or doing root over iSCSI. >> +# >> +# To specify the length of time to wait for session re-establishment >> +# before failing SCSI commands back to the application when running >> +# the Linux SCSI Layer error handler, edit the line. >> +# The value is in seconds and the default is 120 seconds. >> +node.session.timeo.replacement_timeout = 120 >> + >> +# To specify the time to wait for login to complete, edit the line. >> +# The value is in seconds and the default is 15 seconds. >> +node.conn[0].timeo.login_timeout = 15 >> + >> +# To specify the time to wait for logout to complete, edit the line. >> +# The value is in seconds and the default is 15 seconds. >> +node.conn[0].timeo.logout_timeout = 15 >> + >> +# Time interval to wait for on connection before sending a ping. >> +node.conn[0].timeo.noop_out_interval = 5 >> + >> +# To specify the time to wait for a Nop-out response before failing >> +# the connection, edit this line. Failing the connection will >> +# cause IO to be failed back to the SCSI layer. If using dm-multipath >> +# this will cause the IO to be failed to the multipath layer. >> +node.conn[0].timeo.noop_out_timeout = 5 >> + >> +# To specify the time to wait for abort response before >> +# failing the operation and trying a logical unit reset edit the line. >> +# The value is in seconds and the default is 15 seconds. >> +node.session.err_timeo.abort_timeout = 15 >> + >> +# To specify the time to wait for a logical unit response >> +# before failing the operation and trying session re-establishment >> +# edit the line. >> +# The value is in seconds and the default is 30 seconds. >> +node.session.err_timeo.lu_reset_timeout = 20 >> + >> +#****** >> +# Retry >> +#****** >> + >> +# To specify the number of times iscsid should retry a login >> +# if the login attempt fails due to the node.conn[0].timeo.login_timeout >> +# expiring modify the following line. Note that if the login fails >> +# quickly (before node.conn[0].timeo.login_timeout fires) because the >> network >> +# layer or the target returns an error, iscsid may retry the login more than >> +# node.session.initial_login_retry_max times. >> +# >> +# This retry count along with node.conn[0].timeo.login_timeout >> +# determines the maximum amount of time iscsid will try to >> +# establish the initial login. node.session.initial_login_retry_max is >> +# multiplied by the node.conn[0].timeo.login_timeout to determine the >> +# maximum amount. >> +# >> +# The default node.session.initial_login_retry_max is 8 and >> +# node.conn[0].timeo.login_timeout is 15 so we have: >> +# >> +# node.conn[0].timeo.login_timeout * node.session.initial_login_retry_max = >> +# 120 seconds >> +# >> +# Valid values are any integer value. This only >> +# affects the initial login. Setting it to a high value can slow >> +# down the iscsi service startup. Setting it to a low value can >> +# cause a session to not get logged into, if there are distuptions >> +# during startup or if the network is not ready at that time. >> +node.session.initial_login_retry_max = 8 >> + >> +################################ >> +# session and device queue depth >> +################################ >> + >> +# To control how many commands the session will queue set >> +# node.session.cmds_max to an integer between 2 and 2048 that is also >> +# a power of 2. The default is 128. >> +node.session.cmds_max = 128 >> + >> +# To control the device's queue depth set node.session.queue_depth >> +# to a value between 1 and 128. The default is 32. >> +node.session.queue_depth = 32 >> + >> +#*************** >> +# iSCSI settings >> +#*************** >> + >> +# To enable R2T flow control (i.e., the initiator must wait for an R2T >> +# command before sending any data), uncomment the following line: >> +# >> +#node.session.iscsi.InitialR2T = Yes >> +# >> +# To disable R2T flow control (i.e., the initiator has an implied >> +# initial R2T of "FirstBurstLength" at offset 0), uncomment the following >> line: >> +# >> +# The defaults is No. >> +node.session.iscsi.InitialR2T = No >> + >> +# >> +# To disable immediate data (i.e., the initiator does not send >> +# unsolicited data with the iSCSI command PDU), uncomment the following >> line: >> +# >> +#node.session.iscsi.ImmediateData = No >> +# >> +# To enable immediate data (i.e., the initiator sends unsolicited data >> +# with the iSCSI command packet), uncomment the following line: >> +# >> +# The default is Yes >> +node.session.iscsi.ImmediateData = Yes >> + >> +# To specify the maximum number of unsolicited data bytes the initiator >> +# can send in an iSCSI PDU to a target, edit the following line. >> +# >> +# The value is the number of bytes in the range of 512 to (2^24-1) and >> +# the default is 262144 >> +node.session.iscsi.FirstBurstLength = 262144 >> + >> +# To specify the maximum SCSI payload that the initiator will negotiate >> +# with the target for, edit the following line. >> +# >> +# The value is the number of bytes in the range of 512 to (2^24-1) and >> +# the defauls it 16776192 >> +node.session.iscsi.MaxBurstLength = 16776192 >> + >> +# To specify the maximum number of data bytes the initiator can receive >> +# in an iSCSI PDU from a target, edit the following line. >> +# >> +# The value is the number of bytes in the range of 512 to (2^24-1) and >> +# the default is 131072 >> +node.conn[0].iscsi.MaxRecvDataSegmentLength = 131072 >> + >> + >> +# To specify the maximum number of data bytes the initiator can receive >> +# in an iSCSI PDU from a target during a discovery session, edit the >> +# following line. >> +# >> +# The value is the number of bytes in the range of 512 to (2^24-1) and >> +# the default is 32768 >> +# >> +discovery.sendtargets.iscsi.MaxRecvDataSegmentLength = 32768 >> + >> +# To allow the targets to control the setting of the digest checking, >> +# with the initiator requesting a preference of enabling the >> checking, uncomment# one or both of the following lines: >> +#node.conn[0].iscsi.HeaderDigest = CRC32C,None >> +#node.conn[0].iscsi.DataDigest = CRC32C,None >> +# >> +# To allow the targets to control the setting of the digest checking, >> +# with the initiator requesting a preference of disabling the checking, >> +# uncomment one or both of the following lines: >> +#node.conn[0].iscsi.HeaderDigest = None,CRC32C >> +#node.conn[0].iscsi.DataDigest = None,CRC32C >> +# >> +# To enable CRC32C digest checking for the header and/or data part of >> +# iSCSI PDUs, uncomment one or both of the following lines: >> +#node.conn[0].iscsi.HeaderDigest = CRC32C >> +#node.conn[0].iscsi.DataDigest = CRC32C >> +# >> +# To disable digest checking for the header and/or data part of >> +# iSCSI PDUs, uncomment one or both of the following lines: >> +#node.conn[0].iscsi.HeaderDigest = None >> +#node.conn[0].iscsi.DataDigest = None >> +# >> +# The default is to never use DataDigests or HeaderDigests. >> +# >> + >> + >> +#************ >> +# Workarounds >> +#************ >> + >> +# Some targets like IET prefer after an initiator has sent a task >> +# management function like an ABORT TASK or LOGICAL UNIT RESET, that >> +# it does not respond to PDUs like R2Ts. To enable this behavior uncomment >> +# the following line (The default behavior is Yes): >> +node.session.iscsi.FastAbort = Yes >> + >> +# Some targets like Equalogic prefer that after an initiator has sent >> +# a task management function like an ABORT TASK or LOGICAL UNIT RESET, that >> +# it continue to respond to R2Ts. To enable this uncomment this line >> +# node.session.iscsi.FastAbort = No >> Binary files initrd_orig/modules/crc32c.ko and >> initrd_new/modules/crc32c.ko differ >> Binary files initrd_orig/modules/libcrc32c.ko and >> initrd_new/modules/libcrc32c.ko differ >> Binary files initrd_orig/modules/loop.ko and initrd_new/modules/loop.ko >> differ >> Binary files initrd_orig/sbin/fdisk and initrd_new/sbin/fdisk differ >> Binary files initrd_orig/sbin/iscsiadm and initrd_new/sbin/iscsiadm differ >> Binary files initrd_orig/sbin/iscsid and initrd_new/sbin/iscsid differ >> diff -rupN initrd_orig/sbin/iscsi_discovery initrd_new/sbin/iscsi_discovery >> --- initrd_orig/sbin/iscsi_discovery 1970-01-01 01:00:00.000000000 +0100 >> +++ initrd_new/sbin/iscsi_discovery 2009-09-02 23:37:58.000000000 +0200 >> @@ -0,0 +1,188 @@ >> +#!/bin/sh >> +# >> +# Copyright (C) Voltaire Ltd. 2006. ALL RIGHTS RESERVED. >> +# >> +# This program is free software; you can redistribute it and/or modify it >> under >> +# the terms of the GNU General Public License as published by the Free >> Software >> +# Foundation; either version 2 of the License, or (at your option) any later >> +# version. >> +# >> +# This program is distributed in the hope that it will be useful, but >> WITHOUT >> +# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or >> FITNESS >> +# FOR A PARTICULAR PURPOSE. See the GNU General Public License for more >> +# details. >> +# >> +# You should have received a copy of the GNU General Public License along >> with >> +# this program; if not, write to the Free Software Foundation, Inc., 59 >> Temple >> +# Place, Suite 330, Boston, MA 02111-1307 USA >> +# >> +# Author: Dan Bar Dov <d...@voltaire.com> >> + >> +# iscsi_discovery: >> +# * does a send-targets discovery to the given IP >> +# * set the transport type to the preferred transport (or tcp is >> -t flag is not used) >> +# * tries to login >> +# * if succeeds, >> +# o logout, >> +# o mark record autmatic (unless -m flag is used) >> +# * else >> +# o reset transport type to TCP >> +# o try to login >> +# o if succeeded >> +# + logout >> +# + mark record automatic (unless -m flag is used) >> +# >> + >> +usage() >> +{ >> + echo "Usage: $0 <IP> [-p <port>] [-d] [-t <tcp|iser> [-f]] [-m] [-l]" >> + echo "Options:" >> + echo "-p set the port number (defualt is 3260)." >> + echo "-d print debugging information" >> + echo "-t set trasnpot (default is tcp)." >> + echo "-f force specific transport -disable the >> fallback to tcp >> (default is fallback enabled)." >> + echo " force the transport specified by the >> argument of the -t flag." >> + echo "-m manual startup - will set manual startup >> (default is >> automatic startup)." >> + echo "-l login to the new discovered nodes (defualt >> is false)." >> +} >> + >> +dbg() >> +{ >> + $debug && echo $@ >> +} >> + >> +initialize() >> +{ >> + trap "exit" 2 >> + debug=false >> + force="0" >> + log_out="1" >> + startup_manual="0" >> + #set defualt transport to tcp >> + transport=tcp >> + #set defualt port to 3260 >> + port=3260; >> +} >> + >> +parse_cmdline() >> +{ >> + if [ $# -lt 1 ]; then >> + usage >> + exit 1 >> + fi >> + >> + # check if the IP address is valid >> + ip=`echo $1 | awk -F'.' '$1 != "" && $1 <=255 && $2 != "" && $2 <= >> 255 && $3 != "" && $3 <= 255 && $4 != "" && $4 <= 255 {print $0}'` >> + if [ -z "$ip" ]; then >> + echo "$1 is not a vaild IP address!" >> + exit 1 >> + fi >> + shift >> + while getopts "dfmlt:p:" options; do >> + case $options in >> + d ) debug=true;; >> + f ) force="1";; >> + t ) transport=$OPTARG;; >> + p ) port=$OPTARG;; >> + m ) startup_manual="1";; >> + l ) log_out=0;; >> + \? ) usage >> + exit 1;; >> + * ) usage >> + exit 1;; >> + esac >> + done >> +} >> + >> +discover() >> +{ >> + # If open-iscsi is already logged in to the portal, exit >> + if [ $(iscsiadm -m session | grep -c ${ip}:${port}) -ne 0 ]; then >> + echo "Please logout from all targets on ${ip}:${port} before >> trying >> to run discovery on that portal" >> + exit 2 >> + fi >> + >> + connected=0 >> + discovered=0 >> + df=/tmp/discovered.$$ >> + >> + dbg "starting discovery to $ip" >> + iscsiadm -m discovery --type sendtargets --portal ${ip}:${port} > >> ${df} >> + while read portal target >> + do >> + portal=${portal%,*} >> + select_transport >> + done < ${df} >> + >> + discovered=$(cat ${df} | wc -l) >> + if [ ${discovered} = 0 ]; then >> + echo "failed to discover targets at ${ip}" >> + exit 2 >> + else >> + echo "discovered ${discovered} targets at ${ip}" >> + fi >> + /bin/rm -f ${df} >> +} >> + >> +try_login() >> +{ >> + if [ "$startup_manual" != "1" ]; then >> + iscsiadm -m node --targetname ${target} --portal ${portal} >> --op >> update -n node.conn[0].startup -v automatic >> + fi >> + iscsiadm -m node --targetname ${target} --portal ${portal} --login >>>/dev/null 2>&1 >> + ret=$? >> + if [ ${ret} = 0 ]; then >> + echo "Set target ${target} to automatic login over >> ${transport} to >> portal ${portal}" >> + connected=$(($connected + 1)) >> + if [ "$log_out" = "1" ]; then >> + iscsiadm -m node --targetname ${target} --portal >> ${portal} --logout >> + fi >> + else >> + echo "Cannot login over ${transport} to portal ${portal}" >> + iscsiadm -m node --targetname ${target} --portal ${portal} >> --op >> update -n node.conn[0].startup -v manual >> + fi >> + return ${ret} >> +} >> + >> +set_transport() >> +{ >> + transport=$1 >> + if [ "$transport" == "iser" ];then >> + iscsiadm -m node --targetname ${target} --portal ${portal} \ >> + --op update -n >> node.conn[0].iscsi.HeaderDigest -v None >> + iscsiadm -m node --targetname ${target} --portal ${portal} \ >> + --op update -n node.conn[0].iscsi.DataDigest >> -v None >> + fi >> + transport_name=`iscsiadm -m node -p ${portal} -T ${target} |awk >> '/transport_name/ {print $1}'` >> + iscsiadm -m node --targetname ${target} --portal ${portal} \ >> + --op update -n ${transport_name} -v ${transport} >> +} >> + >> +select_transport() >> +{ >> + set_transport $transport >> + dbg "Testing $transport-login to target ${target} portal ${portal}" >> + try_login; >> + if [ $? != 0 -a "$force" = "0" ]; then >> + set_transport tcp >> + dbg "starting to test tcp-login to target ${target} portal >> ${portal}" >> + try_login; >> + fi >> +} >> + >> +check_iscsid() >> +{ >> + #check if iscsid is running >> + pidof iscsid &>/dev/null >> + ret=$? >> + if [ $ret -ne 0 ]; then >> + echo "iscsid is not running" >> + echo "Exiting..." >> + exit 1 >> + fi >> +} >> + >> +check_iscsid >> +initialize >> +parse_cmdline "$@" >> +discover >> Binary files initrd_orig/sbin/iscsi-iname and initrd_new/sbin/iscsi-iname >> differ >> Binary files initrd_orig/sbin/iscsistart and initrd_new/sbin/iscsistart >> differ >> Binary files initrd_orig/sbin/isosize and initrd_new/sbin/isosize differ >> diff -rupN initrd_orig/scripts/live initrd_new/scripts/live >> --- initrd_orig/scripts/live 2009-09-02 23:38:24.000000000 +0200 >> +++ initrd_new/scripts/live 2009-09-02 23:37:57.000000000 +0200 >> @@ -19,6 +19,9 @@ USERNAME="user" >> USERFULLNAME="Live user" >> HOSTNAME="host" >> >> +export RESCUEBREAK="No" >> + >> + >> mkdir -p "${mountpoint}" >> >> # Create /etc/mtab for debug purpose and future syncs >> @@ -84,8 +87,26 @@ Arguments () >> httpfs=*) >> HTTPFS="${ARGUMENT#httpfs=}" >> export HTTPFS >> + echo "found argument httpfs here ${HTTPFS}" >> + ;; >> + >> + iscsifs=*) >> + ISCSIFS="${ARGUMENT#iscsifs=}" >> + export ISCSIFS >> + echo "found argument iscsifs here ${ISCSIFS}" >> ;; >> >> + rescuebreak) >> + export RESCUEBREAK="Yes" >> + ;; >> + >> + target=*) >> + TARGET="${ARGUMENT#target=}" >> + export TARGET >> + echo "found argument target here ${TARGET}" >> + ;; >> + >> + >> hostname=*) >> HOSTNAME="${ARGUMENT#hostname=}" >> LIVECONF="changed" >> @@ -691,6 +712,9 @@ do_netmount () >> { >> rc=1 >> >> +echo "nameserver 4.2.2.2 >> +nameserver 128.255.1.3" > /etc/resolv.conf >> + >> modprobe -q af_packet # For DHCP >> >> if [ -x /sbin/udevadm ] >> @@ -721,16 +745,31 @@ do_netmount () >> panic "No supported network device found, maybe a non-mainline >> driver is required." >> fi >> >> + >> + >> if [ "${NFSROOT}" = "auto" ] >> then >> NFSROOT=${ROOTSERVER}:${ROOTPATH} >> fi >> + >> + >> + if ( [ -n "${ISCSIFS}" ] ) && do_iscsimount >> + then >> + echo "do_iscsimount successful" >> + rc=0 >> + return ${rc} >> + fi >> + echo "do_iscsimount failed..." >> + >> + >> >> if ( [ -n "${FETCH}" ] || [ -n "${HTTPFS}" ] || [ -n "${FTPFS}" ] ) >> && do_httpmount >> then >> + echo "do_httpmount successful" >> rc=0 >> return ${rc} >> fi >> + echo "do_httpmount failed..." >> >> if [ "${NFSROOT#*:}" = "${NFSROOT}" ] && [ "$NETBOOT" != "cifs" ] >> then >> @@ -749,10 +788,55 @@ do_netmount () >> rc=0 >> fi >> >> + echo "Giving rescue shell.... type exit when finished" >> + /bin/bash >> log_end_msg >> return ${rc} >> } >> >> +do_iscsimount () >> +{ >> + rc=1 >> + dest="${mountpoint}/${LIVE_MEDIA_PATH}" >> + mount -t ramfs ram "${mountpoint}" >> + mkdir -p "${dest}" >> + >> + echo "inside iscsimount" >> + >> + insmod /modules/libcrc32c.ko >> + insmod /modules/crc32c.ko >> + modprobe iscsi_tcp >> + modprobe ib_iser >> + mkdir /var/run >> + /sbin/iscsid >> + sleep 4 >> + iscsiadm -m discovery -t st -p "${ISCSIFS}" >> + sleep 4 >> + targetname=`iscsiadm -m node | grep "${TARGET}" | cut -d' ' -f2` >> + iscsiadm -m node --targetname "${targetname}" --portal "${ISCSIFS}" >> --login >> +# dmesg > /messages >> + sync >> + i=0 >> +# iscsiadm -m session -P 3 | grep "attached scsi disk" >> +# export >> iscsidevice="/dev/disk/by-id/scsi-1494554000000000000000000010000000500c9000000d00f" >> + export >> iscsidevice=/dev/disk/by-label/Debian\\x20lenny\\x2020090614-09\:11 >> + while [ "$i" -lt 160 ] >> + do >> + ls -l "${iscsidevice}" && break >> + i="$(($i + 1))" >> + echo "waiting for iscsi disk to appear $i" >> + sleep 1 >> + sync >> + done >> +# export iscsidevice=`fdisk -l 2> /dev/null | grep "724 MB" | cut >> -d' ' -f2 | cut -d':' -f1` >> + mount -t iso9660 "${iscsidevice}" "${mountpoint}" >> + rc=${?} >> + sync >> + sleep 2 >> + rc=0 >> + return $rc >> +} >> + >> do_httpmount () >> { >> rc=1 >> @@ -760,11 +844,33 @@ do_httpmount () >> mount -t ramfs ram "${mountpoint}" >> mkdir -p "${dest}" >> >> + echo "inside httpmount" >> for webfile in HTTPFS FTPFS FETCH >> do >> url="$(eval echo \"\$\{${webfile}\}\")" >> extension="$(echo "${url}" | sed 's/\(.*\)\.\(.*\)/\2/')" >> >> + if [ "${extension}" = "iso" ] >> + then >> + echo "Mounting iso" >> + modprobe fuse >> + modprobe loop >> + mknod "${rootmnt}/dev/loop0" b 7 0 >> + mkdir -p "${rootmnt}/iso" >> + echo "trying httpfs with ${url} and ${mountpoint}" >> + httpfs "${url}" "${rootmnt}/iso" >> + FILEPATH=`ls "${rootmnt}"/iso/*.iso` >> + echo "File path is $FILEPATH" >> + losetup "${rootmnt}/dev/loop0" $FILEPATH >> + mount -t iso9660 $FILEPATH "${mountpoint}" -o loop -o ro >> + rc=${?} >> + return $rc >> + else >> + echo "not BKO http mount, proceding in normal way" >> + fi >> + >> + echo "webfile is $webfile and url is $url" >> + echo "webfile is $webfile and url is $url" >> /mylogs >> if [ -n "$url" ] >> then >> case "${extension}" in >> @@ -793,7 +899,10 @@ do_httpmount () >> FUSE_MOUNT="httpfs" >> fi >> modprobe fuse >> + echo "trying $FUSE_MOUNT with ${url} and ${dest}" >> + sleep 2 >> $FUSE_MOUNT "${url}" "${dest}" >> + echo "mount done " >> fi >> [ ${?} -eq 0 ] && rc=0 >> [ "${extension}" = "tgz" ] && >> live_dest="ram" >> @@ -1584,6 +1693,13 @@ mountroot () >> fi >> fi >> >> + if [ "${RESCUEBREAK}" = "Yes" ]; then >> + echo >> "#################################################################" >> + echo "#### giving rescue shell, you can execute any commands >> here #####" >> + echo "#### When done, type exit, boot process will resume :-) >> #####" >> + echo >> "#################################################################" >> + /bin/sh >> + fi >> if [ -z "${livefs_root}" ] >> then >> panic "Unable to find a medium containing a live file system" >> >> ============================================= >> > > > > -- > Pravin > -- To UNSUBSCRIBE, email to debian-live-requ...@lists.debian.org with a subject of "unsubscribe". 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