When restarting an interrupted build, SOURCE_DATE_EPOCH needs to be
available before `profiledef.sh` is read, since it may reference it.
Fixes 7c6f266ec9
It will be replaced with the ISO's modification date in UTC, i.e.
its "UUID".
This allows to replace `archisolabel=%ARCHISO_LABEL%` with
`archisodevice=UUID=%ARCHISO_UUID%` in boot loader configurations.
Related to #202
* Use LZMA extreme compression level,
* enable experimental compressed fragments feature to create a smaller image,
* enable experimental data deduplication.
This decreases the baseline profile's `airootfs.erofs` size by about ~16 MiB.
1) wait for network-online.target before invoking curl
as there's no synchronization with network setup for this script
2) don't hide curl errors - it may be easier to debug the issues
3) add log and comments
configs/{baseline,releng}/grub/grub.cfg:
Use `console` as grub's `terminal_output`, as with `gfxterm` only a blank screen is shown on some hardware.
Fixes#212
Convert the file to reStructuredText markup.
Fixes#39.
Rewrite the instructions where possible or otherwise update them.
E.g. fix the changed boot loader paths, etc.
The "Manual formatting (BIOS only)", previosly "PC-BIOS (ISOHYBRID-MBR)",
method is not tested and it is not clear if it still even works.
This allows to reduce the number of top-level directories by one and
matches with the GRUB directory move.
Most boot loader related things will now be in the /boot/ directory.
Fixes#207
To prevent the file from being accidentally missed when someone copies
the ISO's contents, let's not place it in a directory that starts with a
dot. Since all GRUB related files are in /boot/grub/, put it there too.
Instead of using a more unique UUID for the file name, use
`YYYY-mm-dd-HH-MM-SS-00.uuid` which matches the ISO's modification date
in UTC,i.e. its "UUID". If multiple ISOs would be generated in the exact
same second, the ISO 9660 modification date (i.e. its "UUID") would be
the same, so there would be not way to distinguish between the volumes
anyway. This also makes the file look less suspicious to the casual
glance.
Add all variables that we replace with values in configuration files.
Keep `${isofs_dir}/${install_dir}/grubenv` with fewer variables for
backwards compatibility. It will be removed in the future.
The `grub.cfg` embedded in the GRUB binaries already sets `ARCHISO_HINT`
and `ARCHISO_UUID` in most cases. To avoid performing the same searches
multiple times, use the existing variables.
Move the location of GRUB files so that there is boot-platform
(BIOS vs EFI) neutral place for GRUB-specific files (e.g. configuration
files, background images, etc.).
The EFI binaries are obviosly staying in the default/fallback boot path
`/EFI/BOOT/BOOT*.EFI`, otherwise there will be no UEFI booting.
The /boot/grub/ directory will be used to store BIOS (i386-pc) GRUB
bootsector images, if we get to that.
It is also a requirement for implementing `loopback.cfg` support, since
the file's path must be `/boot/grub/loopback.cfg`.
Implements #206
Instruct the embeded grub.cfg to search for a volume with a
`/.disk/%UUID_SEARCH_FILENAME%.uuid` file and load `/EFI/BOOT/grub.cfg`
from it.
This avoid duplicating GRUB configuration files in two places (ISO 9660
and FAT) and ensures there is no confusion about which is the _correct_
configuration file.
Since nothing besides EFI binaries is copied to `efibootimg`, the
`_make_common_bootmode_grub_copy_to_efibootimg` function is removed.
Fixes#208
Move memtest86+ to `/boot/memtest86+/` on ISO 9660. That directory is
not copied to netboot artifact output.
Netboot boot menu https://ipxe.archlinux.org/releng/netboot/archlinux.ipxe
does not have entries for memtest and archiso-manager removes these files
(not the EFI one, though) before uploading the release files anyway.
There are claims that some UEFI allegedly natively support NTFS.
Preload the required GRUB modules to support booting from NTFS on such
systems.
Additionally preload the exFAT and UEF modules, because, why not?
Search for `/.disk/%UUID_SEARCH_FILENAME%.uuid` and pass the UUID of the
volume it's on as `archisodevice`. mkarchiso will replace
`%UUID_SEARCH_FILENAME%` with a hardcoded value generated using
`SOURCE_DATE_EPOCH` durring ISO build.
This allows to prepare an UEFI bootable installation medium by simply
copying the directory structure without having to touch `grub.cfg`.
Relying on the volume UUID instead of its LABEL also avoids collisions
of multiple ISOs created in the same month.
Fixes#202
Create a `/.disk/INSERT_UUID_HERE.uuid` file to implement something
called "file system transposition".
See https://www.mail-archive.com/grub-devel@gnu.org/msg34346.html for
the proposal of it for grub-mkrescue.
This will allow GRUB to search for the volume containing the file instead
of hardcoding the ISO volume label or another file system or
partition attribute in GRUB configuration.
By only relying on the directory structure simplifies supporting medium
preparation methods with manual partitioning such as
https://wiki.archlinux.org/title/USB_flash_installation_medium#In_GNU/Linux_4
This is a new value introduced in systemd v247. It makes sure a new
machine-id is generated, but is handled as first boot as well.
See "First Boot Semantics" in machine-id(5) for details.
Now that xz 5.4 is out and erofs-utils is built with LZMA support, it is
possible to compress the EROFS image with LZMA for higher compression.
`mkfs.erofs` trows a few warnings about using experimental features, but
they should not be an issue.
Nothing changes for the releng profile, for now at least.
Specify `cms_verify=y` in SYSLINUX/PXELINUX configuration to use OpenSSL
CMS based method for verifying the root file system image against the
code signing certificates in the initramfs.
`checksum` and `verify` are removed since they essentially serve the same
purpose and performing all the checks just needlessly delays boot.
Additionally, the removal of `verify` allows to build the ISO without gpg,
i.e. without using `mkarchiso`'s `-g` and `-G` options.
Fixes#200
The `bootstrap` build mode never calls `_export_gpg_publickey`, so even if
the GPG key is passed with the `-g` option and thus the `gpg_key` variable
is set, the `${work_dir}/pubkey.gpg` file will not exist.
This has not caused any issue so far because the `ARCHISO_GNUPG_FD` file
descriptor opens the file for both reading and writing, which means the
file gets created if it does not exist.
Assign the exported public key file name to a `gpg_publickey` variable in
`_export_gpg_publickey` and check for it when the file is used.
Since the exist status of the gpg command cannot be checked, look for the
exported public key file instead.
This protects against the case where /proc/cmdline contains garbage triggering grep to think it is a binary.
See e.g. https://bugs.archlinux.org/task/76468 for an example.
