These functions are specific to handling packages stored in the
cache, not other files. They are also always used with the same
`cache/packages.` prefix to the path.
Gbp-Dch: Short
Closes: #952916
To generate an hdd image, binary_hdd first estimates the needed size of
the image using du. By default, when du finds multiple hardlinked copies
of a file, it counts them only once. However, when the target filesystem
is FAT, which does not support hardlinks, these files will take up more
space when finally copying the contents, breaking the build:
P: Copying binary contents into image...
cp: error writing 'chroot/binary.tmp/live/initrd.img-4.9.0-3-amd64': No space left on device
cp: error writing 'chroot/binary.tmp/efi/boot/bootx64.efi': No space left on device
cp: error writing 'chroot/binary.tmp/efi/boot/bootia32.efi': No space left on device
cp: cannot create directory 'chroot/binary.tmp/boot/grub': No space left on device
cp: cannot create directory 'chroot/binary.tmp/isolinux': No space left on device
To fix this, pass --count-links to du when the target is FAT, to make
the space estimation correct.
This problem is exposed by commit 9c974b26b (Instead of renaming kernel
for syslinux, create hardlinks), which might need to be separately fixed
(to not waste space on FAT targets), but binary_hdd should at least
handle hardlinks more gracefully.
* Added: functions/bootloaders.sh . This file adds bootloader functions that are heavily used in efi scenarios where a bootloader can act as a first or an extra bootloader.
Since the introduction of the new switch:
--bootloaders
you can setup it like this:
--bootloaders=syslinux,grub-efi
.
This means that syslinux is the first bootloader and grub-efi is the extra bootloader.
* Added new bootloader functions: Check_Non_First_Bootloader and Check_Non_Extra_Bootloader.
These functions let each one of the bootloaders abort the build because
they cannot perform a role either as a first bootloader or as an extra bootloader.
* Added bootloader functions: Check_First_Bootloader_Role, Check_Extra_Bootloader_Role and Check_Any_Bootloader_Role
These functions let bootloaders to force their default role in a single line.
At the same time many binary bootloaders were rewritten to make use of the new bootloader role functions explained above.
These roles were enforced:
binary_grub-legacy : First bootloader
binary_grub-pc : Either first or extra bootloader
binary_syslinux : Either first or extra bootloader
If a bootloader is tried to be used in a role that it's not meant to be used then the build fails because that might lead to a non-bootable system.
Some BIOSes dont't boot from partitions starting at sector 1024.
Some are even more peculiar and only start from sector 63.
This patch adds an option for the binary_hdd target to manually
configure the partition start.
Note: OLDIFS use makes IFS to be reset to "" instead to it being unset.
Either we need to detect if old IFS was unset to unset it
or we need a proper way of setting it as a local variable.
Even more IFS it's not currently used in
Check_package (which it's called from: binary_hdd).
we should have a clean way of resetting/unsetting IFS when calling Check_package.
The other approach it's to explicitly define IFS with its default value in the
places inside live-build code where we implicitly suppose that it's going to have
its default value.
extlinux configuration for the bootable image is installed to
/boot/extlinux, matching the extlinux-install script in Debian.
From the configuration point of view it's still called "syslinux",
the same as the rest of the syslinux family (pxelinux, isolinux etc.)
If LB_HDD_SIZE is "auto" the size will be determined automatically as before
else it will be the given size in MB.
Also setting the default for this to "auto"
Previously, we needed to keep the lb_* prefix as the scripts
could also be executed standalone. Since the lb wrapper is
mandatory since squeeze, we can drop this now.
Lyndon Brown
Raphaël Hertzog
Matthijs Kooijman
Adrian Gibanel Lopez
Kristian Klausen
Maximilian Mehnert
Carlos Zuferri
Daniel Baumann
Simon McVittie
Michael Stummvoll
Daniel Baumann