Provided by: bootcd_6.8.2_all 
NAME
bootcd2disk.conf - bootcd utils
SYNOPSIS
/etc/bootcd/bootcd2disk.conf
DESCRIPTION
bootcd2disk.conf is a configuration file used by bootcd2disk.
The default /etc/bootcd/bootcd2disk.conf is also available in directory /usr/share/doc/bootcd/examples/.
The default can be used, when running from an iso image created by bootcdwrite, to reinstall the first
disk.
bootcd2disk.conf will be sourced as shell file. The following OPTIONS can be used. They are ordered
alphabetical.
OPTIONS
after_copy()
If the function is defined, it will run after the system has been copied to the target system and
while the target system is still mounted at COPYDEST.
For example to change the network configuration the following script could be defined:
after_copy()
{
cat <<EOF >$COPYDEST/etc/network/interfaces
auto lo
iface lo inet loopback
auto eth0
iface eth0 inet static
address 192.168.1.2
netmaks 255.255.255.0
gateway 192.168.1.1
EOF
}
Default:
# the function is not defined
unset -f after_copy
bootcd_mount()
The function will be called with the "mountpoint directory" as option. To use Partiton 1 of the first
disk as /boot and partiton 3 of the first disk as / the function could be defined as:
bootcd_mount()
{
local mountpoint
bootcd_global DISK0P1 DISK0P3
mountpoint="$1"
mount $DISK0P3 $mountpoint
mkdir $mountpoint/boot
mount $DISK0P1 $mountpoint/boot
}
Default:
# the function is not defined
unset -f bootcd_mount
bootcd_umount()
The function will be called with the "mountpoint directory" as option. If / and /boot are mounted,
the function could be defined as:
bootcd_umount()
{
local mountpoint
mountpoint="$1"
umount $mountpoint/boot
umount $mountpoint"
}
Default:
# the function is not defined
unset -f bootcd_umount
BOOTCDMP
This defines the mountpoint, where filesystems can be mounted to be temporarily modified by
bootcd2disk.
Default:
BOOTCDMP="/mnt/bootcd.disc"
COPYDEST
This points to the mounted disk and normally needs not to be changed. Default:
COPYDEST="/mnt/bootcd.disc"
DISK#
DISK# stands for one of DISK0, DISK1, ... DISK99. The Variables DISK# can be defined to specify the
disks disk that will be newly partitioned before copying the cd to it:
DISK0="/dev/hda"
To not partition any disk:
DISK0=""
To let bootcd2disk find a disk (bootcd2disk tries to use the first disk):
DISK0="auto"
It is possible to define more disks. The disk number must be increased by 1:
DISK1="auto"
DISK2="auto"
Default:
DISK0="auto"
DISKIDTYP
With the variable DISKIDTYP it can be defined which type of name bootcd should write in config files.
When naming a disk in a file, bootcd2disk can try to name the disk by UUID:
DISKIDTYP="UUID"
Or bootcd can name the disk by the devicename:
DISKIDTYP="DEVNAME"
Default:
DISKIDTYP="UUID"
do_first()
A function do_first() can be defined, to do some things first before doing anything else. Example of
a function, that prints something:
do_first()
{
info "function do_first is now running"
}
Default:
# make sure the function is not defined
unset -f do_first
do_last()
A function do_last() can be defined, to do some things laster after doing anything else. Example of a
function, that prints something:
do_last()
{
info "function do_last is now running"
}
Default:
# make sure the function is not defined
unset -f do_last
EFIBOOT
Create a disk that can boot with old BIOS:
EFIBOOT="bios"
Create a disk that can boot with EFI. Will work with secureboot enabled, if kernel and grub are
signed or original from debian.:
EFIBOOT="efi"
To check current system. If EFI is enabled use "efi" if not use "bios". The needed bootloader
software for this option is probably aready installed:
EFIBOOT="auto"
Create a disk that can boot from BIOS and EFI. If you have installed grub-pc-bin and
grub-efi-amd64-bin this may be the best option. The disk may be removed, and used on another host,
with either bios or efi:
EFIBOOT="bios+efi"
Default:
EFIBOOT="auto"
EXCLUDE_SYSTEM
This files need to be excluded on most systems. So the default may be ok in most cases. Additional
files to be excluded can be defined in EXCLUDE
Default:
EXCLUDE_SYSTEM="/dev/ /mnt/ /proc/ /run/ /sys/ /tmp/ /var/tmp/"
EXCLUDE
This variable can also contain special characters. See EVALVARS.
Some files are already exluded with EXCLUDE_SYSTEM. With EXCLUDE additional Files can be excluded.
Directories or files that should not be copied can be defined in this variable as a space separated
list. Each entry should start with /.
Each list item will be given to rsync as --exclude <item>.
Example: To exlcude everything in directory /etc/dir1 use:
EXCLUDE="/etc/dir1/"
To exclude directory itself use:
EXCLUDE="/etc/dir1"
Default:
EXCLUDE=""
EXT2FS
Each device or logical volume definition needs a new line!. Do not not create ext2 filesystems:
EXT2FS=""
Create partitions defined in EXT2FS with mke2fs:
EXT2FS="/dev/hda1
/dev/hda3"
Default:
EXT2FS=""
if also EXT3FS="auto" then ext3 will be used if possible
EXT3FS
Each device or logical volume definition needs a new line! Do not not create ext3 filesystems:
EXT3FS=""
Create partitions defined in EXT3FS with mke2fs -j:
EXT3FS="/dev/hda1
/dev/hda3"
Default:
EXT3FS=""
if also EXT4FS="auto" then ext4 will be used if possible
EXT4FS
Each device or logical volume definition needs a new line! Do not not create ext4 filesystems:
EXT4FS=""
Create partitions defined in EXT4FS as ext4 filesystems:
EXT4FS="/dev/hda1
/dev/hda3"
Default:
EXT4FS=""
FSTAB
Don't change the /etc/fstab copied form cd:
FSTAB=""
Example to define FSTAB yourself:
FSTAB="/dev/sda1 /boot ext2 defaults 0 1
/dev/sda2 none swap sw 0 0
/dev/sda3 / ext2 defaults,errors=remount-ro 0 1
proc /proc proc defaults 0 0"
The string DISK0P1 will be automatically changed to <device of the first partition of the first disk>.
The string UUID!DISK1P3 will be automacally changed to the UUID of the third partition of the second
disk>.
Depends on:
EFIBOOT
Default:
FSTAB=""
GRUB
If you don't want to use GRUB:
GRUB=""
If GRUB2 is not installed or defined and GRUB is defined and grub is installed it will be used and
LILO will be ignored.
If you want to define it yourself:
GRUB="default 0
timeout 5
color cyan/blue white/blue
title Debian GNU/Linux
root (hd0,0)
kernel /vmlinuz-2.4.27-2-386 root=/dev/hda3 ro
initrd /initrd.img-2.4.27-2-386
savedefault
boot"
Default:
GRUB=""
GRUB2
This variable defines if GRUB2 will be used and how the file /boot/grub/grub.cfg is created. If GRUB2
and GRUB and LILO is defined and installed, GRUB2 will be used
If you don't want to use GRUB2:
GRUB2=""
GRUB2 can also define the content of /boot/grub/grub.cfg. Grub2 starts counting partitions at 1 and
grub1 starts at 0. Example:
GRUB2="
set lang=en
insmod gettext
set timeout=5
set menu_color_normal=cyan/blue
set menu_color_highlight=white/blue
menuentry 'Debian GNU/Linux' --class debian --class gnu-linux --class gnu --class os {
insmod ext2
set root='(hd0,1)'
linux /$(basename $KERNEL) root=DISK0P3 ro
initrd /$(basename $INITRD)
}"
If GRUB2 is auto, update-grub will be used to create /boot/grub/grub.cfg automatically. Default:
GRUB2="auto"
GRUBBOOTDIR
Example:
GRUBBOOTDIR="0"
Default:
GRUBBOOTDIR=""
GRUBBOOTDISK
If /boot is not the first partition on disk, we need to know which one it is to install grub properly.
bootcd starts counting with 0 like grub1 ! Example:
GRUBBOOTDISK="hd0"
Default:
GRUBBOOTDISK=""
GRUBDEVICEMAP
Syntax:
GRUBDEVICEMAP=auto|no|<value>
Let bootcd2disk delete the original device.map, so that it will be auto-created by grub again.:
GRUBDEVICEMAP="auto"
bootcd2disk shoult not change device.map. This should work if a bootcd is installed on the original
hardware:
GRUBDEVICEMAP="no"
Everything else will be used as new value for device.map. Default:
GRUBDEVICEMAP="auto"
GRUB_INSTALL_OPTS_BIOS
If bootcd2disk makes a disk bootable from bios with the command grub-install, it uses always the same
basic default options, that can be changed with this option.
Default:
GRUB_INSTALL_OPTS_BIOS="--target=i386-pc --recheck --no-floppy --force"
GRUB_INSTALL_OPTS_EFI
If bootcd2disk makes a disk bootable from efi with the command grub-install, it uses always the same
basic default options, that can be changed with this option. The option --removable will be added by
bootcd2disk if needed.
If the newly created disk will not be moved away --no-nvram may be omitted.
Default:
GRUB_INSTALL_OPTS_EFI="--target=x86_64-efi --recheck --no-floppy --force --no-nvram"
IMAGEURL
If bootcd2disk is slow on your system (because of a slow CD/DVD drive or the HP ILO virtual CD
interface), you can use a image server to get the image from. bootcd2disk use the SWAP partition of
your upcoming system as temporary space and copy the image from the configured image server (IMAGEURL
or cmdline -url) to this partition and use it as image. Please use a ip because of failed DNS and you
need also the configured ip interface. The "url" is used with "wget" so all url from wget are
possible. Example:
IMAGEURL="http://192.168.100.10/cdimage.iso"
Default:
IMAGEURL=""
ISOLOOPBACK
Normally the System is running from bootcd, when bootcd2disk is called. Then files under / are copied
to the new disk. But it may be faster to additionally mount the bootcd to another mountpoint and copy
from there. This mountpoint can then be defined with ISOLOOPBACK
Default:
ISOLOOPBACK=""
LILO
If GRUB is defined and installed LILO will be ignored. If you don't want to change the /etc/lilo.conf
copied from cd:
LILO=""
If you want to define it yourself:
LILO="boot=DISK0
delay=20
vga=0
image=/vmlinuz
root=DISK0P3
initrd=/initrd.img
label=Linux
read-only"
Default:
LILO=""
LINUXFS
This can be set to the preferred filesystem. Possible values are ext4, ext3, ext2, xfs or auto to
calculate an an available filesystem.
Default:
LINUXFS="auto"
LUKS
Each line should have the 4 values target, source_device, key_file and options as described in
crypttab(5).
Only the options luks and swap are supported. If bootcd2disk is running without controlling tty for
password input, the default password bootcd will be set, that has to be changed manually later.
Example with target root filesystem luksroot and target swap partition luksswap:
LUKS="luksroot DISK0P1 none luks
luksswap DISK0P2 /dev/urandom swap"
Default:
LUKS=""
LVMGRP
Each volume group definition needs a new line. Syntax
LVMGRP="<group> <diskdev> [<diskdev> ...][<vgcreate-cmd>][...]"
Example1
LVMGRP="vg00 DISK0P1
vg01 DISK0P2
vg02 DISK0P3 DISK0P4"
Example2 which is the same as Example1 because it uses the default schema
LVMGRP="vg00 DISK0P1 vgcreate vg00 DISK0P1
vg01 DISK0P2 vgcreate vg01 DISK0P2
vg02 DISK0P3 vgcreate vg02 DISK0P3 DISK0P4"
Default:
LVMGRP=""
LVMVOL
Each logical volume definition needs a new line! Size in vgcreate syntax is MByte, e.g.: 100 means
100 MByte. Syntax
LVMVOL="<volname> <size> <group> [<lvcreate-cmd>][...]"
Example1
LVMVOL="lv00 2000 vg00"
Example2 which is the same as Example1 because it used the default schema
LVMVOL="lv00 2000 vg00 lvcreate -n lv00 -L 2000 vg00"
Example3 uses striping for the second volume
LVMVOL="lv00 2000 vg00
lv01 100 vg00 lvcreate -n lv01 -i 3 -I 8 -L 100 vg00"
Default:
LVMVOL=""
MD
To define Raid devices. Not well tested. Not documented. Syntax
MD="<mddev> <level> <diskdev> ... [<mdadm cmd>]"
Example:
MD="md0 1
Default:
MD=""
ORDER
This defines the order of tasks neccessarry to produce disk partitions. The tasks available are parti
md luks lvm.
The task parti can be defined with the variable SFDISK#. The task luks can be defined with the
variable LUKS. The task md can be defined with the variable MD. The task lvm can be defined with the
variables LVMGRP and LVMVOL. Only if a task is defined, the task will be executed.
It is possible to schedule a task multiple times in ORDER. If task parti is defined multiple times,
the task will only be executed, if DISK# that corresponds to SFDISK# is available at task's turn. If
task md is defined multipe times, the task will only be executed, if <diskdev> defined in MD is
available at task's turn. If * task* lvm is defined multipe times, the task will only be executed, if
<diskdev> defined in LVMGRP is available. at task's turn.
Default:
ORDER="parti luks md lvm"
PARTITIONLABEL
If you want the filesystem or swap partitions to have labels you can define them here. Example:
PARTITIONLABEL="/dev/sda1:/
/dev/sda2:SWAP-sda2"
Default:
PARTITIONLABEL=""
RESUME
If you get the Warning "Gave up waiting for suspend/resume device" when booting from a disk created
with bootcd2disk, this may help. It fixes the file /etc/initramfs-tools/conf.d/resume by changing the
RESUME option in /etc/initramfs-tools/initramfs.conf For example to define the RESUME device as
/dev/hda2 use:
RESUME="/dev/hda2"
To define the RESUME device with a Filesystem UUID:
RESUME="UUID=86c6e572-eec4-4a29-8cbd-2864f4e44621"
To not change the RESUME configuration, the variable has to be empty:
RESUME=""
To disable the RESUME Feature, RESUME has to be none:: Default:
RESUME="none"
SFDISK#
SFDISK# stands for one of SFDISK0, SFDISK1, ... SFDISK99 and defines how sfdisk will partition the
DISK#.
If a disk should not be repartitioned, no definition is needed.
To partition DISK2 the following config could be used, see man sfdisk(8):
SFDISK2="
unit: sectors
,50
,100,S
;
"
See SFDISK# in default bootcd2disk.conf for an example that calculates SFDISK0 depending on on
EFIBOOT.
The Default is to not repartition any disks.
SSHHOSTKEY
Syntax:
SSHHOSTKEY=yes|no
If you are using ssh it is helpful to have a unique ssh hostkey for each PC installed with
bootcd2disk. This will be generated with:
SSHHOSTKEY="yes"
Default:
SSHHOSTKEY="yes"
SWAP
Each swap device definition needs a new line! If you don't want to run mkswap use:
SWAP=""
If you want to specify partitions for mkswap:
SWAP="/dev/hda2"
Default:
SWAP=""
ALLOWEDDISKS
If a disk is searched (e.g. DISK0="auto") and ALLOWEDDISKS="", the first free disk found will be used.
IF ALLOWEDDISKS is defined the first free disk listed in ALLOWEDDISKS will be used.
To try only disks /dev/sda and /dev/hda in this order use:
ALLOWEDDISKS="/dev/sda /dev/hda"
This can also be used to only try individual disks, if they are connected:
ALLOWEDDISKS="/dev/disk/by-id/<id1>
/dev/disk/by-id/<id2>
/dev/disk/by-id/<id3>"
Default:
ALLOWEDDISKS=""
UDEV_FIXNET
Syntax:
UDEV_FIXNET=yes|no
If you are using udev filesystem and install the image on other machines you need to set this to "yes"
because the network interfaces are hardwired in /etc/udev/rules.d/z25_persistent-net.rules (etch) or
in /etc/udev/rules.d/70-persistent-net.rules (lenny) and we must remove them.:
UDEV_FIXNET="yes"
Default:
UDEV_FIXNET="yes"
VFAT
Each device or logical volume definition needs a new line!. VFAT is often needed for EFI. If not
needed:
VFAT=""
To ceate partitions with mkdosfs:
VFAT="/dev/sdb4"
Default:
VFAT=""
XFS
Each device or logical volume definition needs a new line! Create partitions defined as xfs
filesystems:
XFS="/dev/hda1
/dev/hda3"
Do not not create xfs filesystems:: Default:
XFS=""
EVALVARS
Most variables listed in chapter OPTIONS can't contain special characters.
It is not recommended to use special characters anyway, but the variable EXCLUDE may contain blank (
), dollar ($), backslash (\), qoute (") and backquote (`). This variables are called EVALVARS in this
manpage, because in shell script, the eval command can be used to easily read them.
For example to define EXCLUDE with the files or directories "/etc/noblank", "/etc/blank name1" and
"/etc/blank name2" the following config line would be possible:
EXCLUDE="/etc/noblank \"/etc/blank name1\" /etc/blank\ name2"
Because all variables have to be readable by shell with the eval command, the syntax can be checked.
if the config line above is entered in a shell with the test commands:
eval "set -- $EXCLUDE"
echo "#=<$#> 1=<$1> 2=<$2> 3=<$3> 4=<$4>"
should print out the result:
#=<3> 1=</etc/noblank> 2=</etc/blank name1> 3=</etc/blank name2> 4=<>
ENVIRONMENT
ia_logfile
The logfile of bootcd2disk is /var/log/bootcd2disk, if not overwriten with variable ia_logfile before.
DEFINING OPTIONS
There are function OPTIONS, number OPTIONS and normal OPTIONS that can be defined directly:
Example: direct definition of function OPTION do_first():
do_first() { info "function do_first is now running"; }
Example: direct definition of a number OPTION DISK#:
DISK0="/dev/hda"; DISK2="auto"
Example: direct definition of a normal OPTION DISKIDTYP:
DISKIDTYP="UUID"
If an OPTION can not be defined immediatelly, because it needs the definition of another OPTION, a
function define_OPTION can be created, that calls the function needs with a string containing a space
separated list of OPTIONS needed:
Example: function do_first needs DISKIDTYP:
define_do_first() {
needs "DISKIDTYP"
if [ "$DISKIDTYP" = "UUID" ]; then
do_first() { info "DISKIDTYP = UUID"; }
else
do_first() { info "DISKIDTYP != UUID"; }
fi
}
Example: number OPTION SFDISK# needs DISKIDTYP:
define_SFDISK() {
needs "DISKIDTYP"
if [ "$DISKIDTYP" = "UUID" ]; then
SFDISK0="..."
SFDISK3="..."
else
SFDISK0="..."
SFDISK3="..."
fi
}
Example: normal OPTION FSTAB needs DISKIDTYP:
define_FSTAB() {
needs "DISKIDTYP"
if [ "$DISKIDTYP" = "UUID" ]; then
FSTAB="..."
else
FSTAB="..."
fi
}
USING PARTITION-TOKENS
In some OPTIONS special partition-tokens can be used, that will be replaced with the device path or
the UUID of the partition, depending on OPTION DISKIDTYP
Example partition-token:
DISK3P7
This means 7th partition of 4th disk. Example usage of partition-token in OPTION FSTAB:
FSTAB="DISK3P7 /boot ext3 defaults 0 1
..."
To use partition-tokens in a function OPTION" variables have to be declared with bootcd_global .
Example:
bootcd_mount()
{
bootcd_global DISK0P3
mountpoint="$1"
mount $DISK0P3 $mountpoint
...
}
The function bootcd_global makes sure that all partition-tokens are available in the same named
variable.
SEE ALSO
bootcd(7), bootcdwrite(1), bootcd2disk(1), bootcdflopcp(1), bootcdmk2diskconf(1), bootcdwrite.conf(5),
crypttab(5), /usr/share/doc/bootcd/examples/
AUTHOR
bernd.schumacher@hpe.com
License: GNU General Public License, version 3
COPYRIGHT
Bernd Schumacher <bernd.schumacher@hpe.com> (2007-2020)
0.1 2020-08-07 BOOTCD2DISK.CONF(5)