Re: Booting Debian-live-501 over HTTP
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"
=============================================
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