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# Purpose of this script is to create a file which contains
# the minimal system requirements we need to recreate this
# system in a remote DRP site
# Output file: /var/lib/rear/sysreqs/Minimal_System_Requirements.txt
# This is just for your information and the output is nowhere else
# used by ReaR whatsoever.
# `rear mkopalpba' creates a system where some information gathered below is missing (and not useful anyway): skip it.
[[ "$WORKFLOW" == "mkopalpba" ]] && return 0
test -d $VAR_DIR/sysreqs || mkdir -m 755 $VAR_DIR/sysreqs
{
echo
# Not every system has a hostname command
if hash hostname 2>/dev/null; then
echo $( hostname ) - $( date '+%F %R' )
else # use uname as alternative to retrieve the host name
echo $( uname -n ) - $( date '+%F %R' )
fi
echo
#
# OS information
#
echo "Operating system:"
if test -f /etc/SuSE-release ; then
# lsb_release does not contain minor version (SP version) in SLE
# get OS version from /etc/SuSE-release
OSVER=$( head -1 /etc/SuSE-release )
# get OS patchlevel (SP) from /etc/SuSE-release
OSLEVEL=$( grep PATCHLEVEL /etc/SuSE-release | cut -d= -f2 )
echo "${OSVER} SP${OSLEVEL}"
elif test -f /etc/redhat-release ; then
cat /etc/redhat-release
elif test -f /etc/rear/os.conf ; then
# The following 2 variables are listed as an example, and are already known by ReaR
# OS_VENDOR=RedHatEnterpriseServer
# OS_VERSION=6
echo "${OS_VENDOR} ${OS_VERSION}"
else
/usr/bin/lsb_release --short --description
fi
echo
echo "Relax-and-Recover version:"
if test -f /usr/sbin/rear ; then
/usr/sbin/rear -V
elif test -f ./usr/sbin/rear ; then # installed in user home directory
./usr/sbin/rear -V
fi
echo
#
# CPU & Memory information
#
# determine the amount of memory in MiB the system had
# (this excludes kernel memory (how to determine this?))
memory_in_kB=$( grep MemTotal /proc/meminfo | cut -d: -f2 | sed 's/kB//' )
grep 'model name' /proc/cpuinfo #f.e. model name : Intel(R) Atom(TM) CPU E3815 @ 1.46GHz
grep 'cpu cores' /proc/cpuinfo #f.e. cpu cores : 1
echo "$(( memory_in_kB / 1024 )) MiB of physical memory"
echo
#
# VG information
#
if hash vgs 2>/dev/null; then
echo "Volume Group info:"
vgs --units=g
echo
fi
if hash lvs 2>/dev/null; then
echo "Logical Volume Groups info:"
lvs --units=g
echo
fi
#
# Disk information
#
echo "Disk space requirements:"
while read junk dev size label
do
echo "Device $dev has a size of $((size/1024/1024/1024)) Gib (label $label)"
done < <(grep "^disk" "$LAYOUT_FILE")
echo
#
# Network information
#
echo "Network Information:"
echo " IP addresses:"
# FIXME: it seems that can go wrong for IPv6 addresses
# perhaps <<ip -4 addr show>> is meant or <<grep 'inet'>> to exclude inet6
# or when IPv6 should be included it should be <<sed ... -e "s/inet6//" -e "s/inet//" >>
# or whatever?
# I <jsmeix@suse.de> gues that IPv6 should be included (i.e. I added -e "s/inet6//").
# Furthermore I do not know if additional stuff like "scope global temporary dynamic"
# is intended in the output, if not it should be <<while read ip junk ; do>>
# to get rid of such additional stuff (for now I keep that additional stuff).
# Finally I do not know if "... DNS name" should be output when there is no DNS name.
# If "... DNS name" should not be output when there is no DNS name
# a test whether or not <<$( dig +short -x ${ip%/*} )>> is empty would help.
ip addr show | grep inet | grep -v 127.0.0. | sed -e "s/ brd.*//" -e "s/inet6//" -e "s/inet//" | while read ip ; do
if hash dig 2>/dev/null; then
DNSname="$( dig +time=1 +tries=1 +short -x ${ip%/*} )"
else
DNSname=""
fi
if test -z "$DNSname" ; then
echo " ip ${ip%/*} subnet /${ip#*/}"
else
echo " ip ${ip%/*} subnet /${ip#*/} DNS name $DNSname"
fi
done
echo " Default route:"
# default route
ip route show | grep default | cut -d' ' -f3 | sed -e "s/^/ /"
echo
} >$VAR_DIR/sysreqs/Minimal_System_Requirements.txt
| Name | Type | Size | Permission | Actions |
|---|---|---|---|---|
| 220_load_modules_from_initrd.sh | File | 1.3 KB | 0644 |
|
| 230_storage_and_network_modules.sh | File | 1.7 KB | 0644 |
|
| 240_kernel_modules.sh | File | 1.08 KB | 0644 |
|
| 250_udev.sh | File | 449 B | 0644 |
|
| 260_collect_initrd_modules.sh | File | 295 B | 0644 |
|
| 260_storage_drivers.sh | File | 114 B | 0644 |
|
| 290_kernel_cmdline.sh | File | 3.43 KB | 0644 |
|
| 295_configure_ramdisk_rootfs.sh | File | 542 B | 0644 |
|
| 300_dns.sh | File | 267 B | 0644 |
|
| 310_network_devices.sh | File | 36.46 KB | 0644 |
|
| 320_inet6.sh | File | 121 B | 0644 |
|
| 350_routing.sh | File | 3.65 KB | 0644 |
|
| 390_check_usb_modules.sh | File | 270 B | 0644 |
|
| 410_use_xen_console.sh | File | 222 B | 0644 |
|
| 500_clone_keyboard_mappings.sh | File | 6.97 KB | 0644 |
|
| 550_copy_ldconfig.sh | File | 307 B | 0644 |
|
| 950_cfg2html.sh | File | 1 KB | 0644 |
|
| 960_collect_MC_serviceguard_infos.sh | File | 1.12 KB | 0644 |
|
| 990_sysreqs.sh | File | 3.91 KB | 0644 |
|