bootcd2disk - copy a system running from bootcd to a disk
- bootcd2disk
[-i|-s|-m] [-d debug_runtime_config] --
[-h|--help]
- [-c|--conf CONF] [-y|--yes] [-url url]
[--only_mount] [--only_unmount] [--only_copydata]
[--only_sync] [-p|--only_print_options]]
[-o|--use_originaldiskname] [-z|--zerodsk]
[--variable_from_bootcd2disk.conf(5) value]
[--function_from_bootcd2disk.conf(5) definition]
bootcd2disk is used to write a running system to disk. It
was originally used do write a running bootcd built with
bootcdwrite to disk, but it is also possible to write a system
directly to an attached disk.
The system can be copied to one or more disk partitions seen by
the running system. When running from bootcd, it is possible to let
bootcd2disk automatically find a disk, make partitions on it, copy
the cd to the disk and make the disk bootable.
-i|-s|-m|-d debug_runtime_config
Run bootcdwrite in interactive, silent, minimal control
or debug mode. See shellia(1) for this standard shellia options.
-c|--conf CONF
use the bootcdwrite config options from file
CONF.
Default:
CONF=/etc/bootcd/bootcd2disk.conf
-h|--help
-o|--use_originaldiskname
if bootcd2disk.conf was created by
bootcdmk2diskconf, not only the variable DISK0 is defined as
auto but also ORIG_DISK0 is defined with the original device. To
use it this option exists.
-y|--yes
-url url
If bootcd2disk is slow on your system (because of a slow
CD/DVD drive or the HP ILO virtual CD interface), you can use an image server
to get the bootcd iso image from. The swap partition of the installed system
will be used as temporary space for the iso image.
The image server url is configured with this option. Example:
bootcd2disk -url http://192.168.1.1/cdimage.iso
Another way the increase the performance is the use of the mounted
CD/DVD itself for the copy. Example:
bootcd2disk -url file:///dev/sdc0
The swap partition of the upcoming system must have enough space
to get the whole image!
--only_mount
After
bootcd2disk did partition, format and
install the disk, the disks can be mounted again with this option. For example
to run
update-grub in chroot on the mounted disk:
# remount disks to /mnt/bootcd.disc/ bootcd2disk
--only_mount
# prepare chroot mount --bind /dev /mnt/bootcd.disc/dev mount -t
proc none /mnt/bootcd.disc/proc mount -t sysfs none /mnt/bootcd.disc/sys
mount -t devpts none /mnt/bootcd.disc/dev/pts
# run update-grub in chroot chroot /mnt/bootcd.disc
update-grub
--only_unmount
If the disks are mounted with option --only_mount
, they can be unmounted with this option.
--only_copydata
This will not create partitions, but only copy data to
the directory COPYDEST defined with --COPYDEST COPYDEST.
Filesystems have to be mounted before. The Bootloader will not be
activated.
-p|--only_print_options
Print the options calculated from defaults, config-file
and commandline and exit.
Hint: This option may display more information about defined
functions in a non-bash environment, if calling bash bootcd2disk -p
....
-z|--zerodsk
This option writes zeros to the beginning of a disk
before using it.
--variable_from_bootcd2disk.conf(5) value
variables listed in bootcd2disk.conf(5) can be
overwritten from command line. For example a variable called VARIABLE
will get the value VALUE with the option: --VARIABLE
VALUE
--function_from_bootcd2disk.conf(5) definition
functions listed in bootcd2disk.conf(5) can be
overwritten from command line. For example a function fun() { echo
"hello world"; } could be defined with the option: --fun
'fun() { echo "hello world"; }'
--only_sync
To use this option, bootcd2disk should have been
run before, because the target disk should be partitioned and formatted
already. With ---only_sync only the steps needed to sync will be done.
That means the target disc will be mounted, the files will be synced, the
bootloader will be activated and the target disk will be unmounted.
All variables, that can be given as OPTIONS or in the
bootcd2disk.conf file, will not be taken form Environment
variables.
Only the following variables will be set as Environment
variables.
LUKS_PASSWD
This variable contains the luks passphrase. It is
used to initialize luks partitions and to open luks partitions.
If this variable is not set in the envrionment it will be asked
interactively by bootcd2disk if needed.
bootcd(7), bootcdwrite(1), bootcdflopcp(1), bootcdmk2diskconf(1),
bootcdwrite.conf(5), bootcd2disk.conf(5)
bernd.schumacher@hpe.com
License: GNU General Public License, version 3
Bernd Schumacher <bernd.schumacher@hpe.com> (2007-2020)