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2021-09-29x86/boot: Fix make hdimage with older versions of mtoolsH. Peter Anvin (Intel)
Some versions of mtools (fixed somewhere between 4.0.31 and 4.0.35) generate bad output for mformat when used with the partition= option. Use the offset= option instead. An mtools.conf entry is *also* needed with partition= to support mpartition; combining them in one entry does not work either. Don't specify the -t option to mpartition; it is unnecessary and seems to confuse mpartition under some circumstances. Also do a few minor optimizations: Use a larger cluster size; there is no reason for the typical 4K clusters when we are dealing mainly with comparatively huge files. Start the partition at 32K. There is no reason to align it more than that, since the internal FAT filesystem structures will at best be cluster-aligned, and 32K is the maximum FAT cluster size. [ bp: Remove "we". ] Signed-off-by: H. Peter Anvin (Intel) <hpa@zytor.com> Signed-off-by: Borislav Petkov <bp@suse.de> Link: https://lkml.kernel.org/r/20210911003906.2700218-1-hpa@zytor.com
2021-05-10x86/boot: Modernize genimage script; hdimage+EFI supportH. Peter Anvin (Intel)
The image generation scripts in arch/x86/boot are pretty out of date, except for the isoimage target. Update and clean up the genimage.sh script, and make it support an arbitrary number of initramfs files in the image. Add a "hdimage" target, which can be booted by either BIOS or EFI (if the kernel is compiled with the EFI stub.) For EFI to be able to pass the command line to the kernel, we need the EFI shell, but the firmware builtin EFI shell, if it even exists, is pretty much always the last resort boot option, so search for OVMF or EDK2 and explicitly include a copy of the EFI shell. To make this all work, use bash features in the script. Furthermore, this version of the script makes use of some mtools features, especially mpartition, that might not exist in very old version of mtools, but given all the other dependencies on this script this doesn't seem such a big deal. Finally, put a volume label ("LINUX_BOOT") on all generated images. Signed-off-by: H. Peter Anvin (Intel) <hpa@zytor.com> Signed-off-by: Ingo Molnar <mingo@kernel.org> Link: https://lore.kernel.org/r/20210510082840.628372-1-hpa@zytor.com
2007-10-11i386: move bootThomas Gleixner
Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>