Re: Booting Debian-live-501 over HTTP
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 <shindepravin@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<shindepravin@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 <danb@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
>
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