openstack/diskimage-builder
Code Issues Proposed changes
4c4f49abcc
diskimage-builder/diskimage_builder/elements/bootloader
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Ian Wienand 8f12d9530e bootloader: remove dangling grubenv links 
The rhel8.2 .qcow2 images have moved from a single xfs partition into
an EFI style layout with separate /boot/efi partition.

This means the root partition has /boot/grub2/grubenv as a symlink to
../efi/EFI/redhat/grubenv, which is dangling when we are running the
bootloader element as /boot/efi is blank.  grub-install tries to call
rename() in the process of re-writing this file, which fails and bails
out dib.

Remove this symlink if it exists

Change-Id: I5591144a3617dbae148b0c5d2a6a404942ffcd4e
Parital-Bug: #1893029
Redhat-Bug: https://bugzilla.redhat.com/show_bug.cgi?id=1871669
2020-09-08 18:04:42 +10:00
..
cleanup.d
update grub cmdline to current kernel parameters
2020-06-14 00:39:42 -05:00
environment.d
update grub cmdline to current kernel parameters
2020-06-14 00:39:42 -05:00
finalise.d
bootloader: remove dangling grubenv links
2020-09-08 18:04:42 +10:00
pkg-map
Merge "update gentoo to allow building arm64 images"
2020-08-19 04:35:28 +00:00
README.rst
update grub cmdline to current kernel parameters
2020-06-14 00:39:42 -05:00

README.rst

bootloader

Installs grub[2] on boot partition on the system. In case GRUB2 is not available in the system, a fallback to Extlinux will happen. It's also possible to enforce the use of Extlinux by exporting a DIB_EXTLINUX variable to the environment.

Arguments

  • DIB_GRUB_TIMEOUT sets the grub menu timeout. It defaults to 5 seconds. Set this to 0 (no timeout) for fast boot times.
  • DIB_BOOTLOADER_DEFAULT_CMDLINE sets parameters that are appended to the GRUB_CMDLINE_LINUX_DEFAULT values in grub.cfg configuration. It defaults to nofb nomodeset gfxpayload=text.
  • DIB_BOOTLOADER_SERIAL_CONSOLE sets the serial device to be used as a console. It defaults to hvc0 for PowerPC, ttyAMA0,115200 for ARM64, otherwise ttyS0,115200.