change version to 2.02-2ubuntu8.2 (UNRELEASED)
Make the linux command in EFI grub always try EFI handover; thanks
to Chris Coulson for the patches (LP: #1864533)
ubuntu: Update the linux boot protocol version check.
The EFI implementation of grub_cmd_linux makes use of xloadflags which was
introduced in to version 2.12 of the kernel's boot protocol, so update the
check accordingly.
ubuntu: Make the linux command in EFI grub always try EFI handover
The previous implementation only boots via the EFI handover protocol when
secure boot is enabled. This means that disabling secure boot breaks some
features that depend on the kernel being booted via the EFI handover entry
point, such as retrieval of the TCG event log.
Update the linux command to always attempt to defer to linuxefi in EFI grub
builds, regardless of whether secure boot is enabled or not. This also allows
a fallback to the non-EFI handover path on kernels that don't support it, but
only if secure boot is disabled.
[<email address hidden>: Rebased against bionic grub]
Add an auto-nvram option to grub-install for auto-detecting NVRAM
access
This adds the auto-nvram functionality of only attempting the NVRAM
variable update if the system has access to those. Useful for dual
BIOS-EFI devices.
video: skip 'text' gfxpayload if not supported, to fallback to
default
On UEFI, 'text' gfxpayload is not supported, but we still reach parse_modespec
with it, which will obviously fail. Fortunately, whatever gfxpayload is set,
we still still have the 'auto' default to fall back to. Allow getting to this
fallback by not trying to parse 'text' as a modespec.
This is because 'text' correctly doesn't parse as a modespec, and ought to have
been ignored before we got to that point, just like it is immediately picked if
we're running on a system where 'text' is a supported video mode.
Show only upstream version, hide rest in package_version variable
The complete package version can get a bit long, so only show the
upstream version in the menu and on the top of the console, and
hide the complete version in a package_version variable.
Don't use arbitrary file sizes as block sizes in bufio
When grub_bufio_open() is called with a buffer size greater than the size
of the file being buffered, it clamps the buffer size to the file size.
This seems sensible on the surface to avoid over-allocating memory, but
grub_bufio_read() also assumes that ~(block_size-1) gives a sensible
mask value... which is only true for power of 2 block sizes, not for
random file sizes.
If the file we're buffering is on tftp, we get particularly pathological
results because we wind up seeking backwards which requires re-requesting
the file from the tftp server - even though the whole file fit in a single
udp packet much smaller than the default buffer size.
