Hello! Option --compression doesn't affect the core image size. Does it work at all?
Running grub-mkimage with compression `none` > # grub-mkimage -v -O i386-pc -p /boot btrfs -C none | wc -c > grub-mkimage: info: the total module size is 0x1a380. > grub-mkimage: info: reading /usr/lib/grub/i386-pc/kernel.img. > grub-mkimage: info: locating the section .text at 0x0. > grub-mkimage: info: locating the section .rodata at 0x5d14. > grub-mkimage: info: locating the section .data at 0x6f40. > grub-mkimage: info: locating the section .module_license at 0x77c0. > grub-mkimage: info: locating the section .bss at 0x77e0. > grub-mkimage: info: reading /usr/lib/grub/i386-pc/crypto.mod. > grub-mkimage: info: reading /usr/lib/grub/i386-pc/gcry_crc.mod. > grub-mkimage: info: reading /usr/lib/grub/i386-pc/gzio.mod. > grub-mkimage: info: reading /usr/lib/grub/i386-pc/diskfilter.mod. > grub-mkimage: info: reading /usr/lib/grub/i386-pc/raid6rec.mod. > grub-mkimage: info: reading /usr/lib/grub/i386-pc/lzopio.mod. > grub-mkimage: info: reading /usr/lib/grub/i386-pc/zstd.mod. > grub-mkimage: info: reading /usr/lib/grub/i386-pc/btrfs.mod. > grub-mkimage: info: kernel_img=0x7f5fb6bc1010, kernel_size=0x77cf. > grub-mkimage: info: the core size is 0x10092. > grub-mkimage: info: reading /usr/lib/grub/i386-pc/lzma_decompress.img. > grub-mkimage: info: reading /usr/lib/grub/i386-pc/diskboot.img. > grub-mkimage: info: writing 0x200 bytes. > grub-mkimage: info: writing 0x10ba2 bytes. > grub-mkimage: error: cannot sync `stdout': Invalid argument. > 69026 Running grub-mkimage with compression `xz` > # grub-mkimage -v -O i386-pc -p /boot btrfs -C xz | wc -c > grub-mkimage: info: the total module size is 0x1a380. > grub-mkimage: info: reading /usr/lib/grub/i386-pc/kernel.img. > grub-mkimage: info: locating the section .text at 0x0. > grub-mkimage: info: locating the section .rodata at 0x5d14. > grub-mkimage: info: locating the section .data at 0x6f40. > grub-mkimage: info: locating the section .module_license at 0x77c0. > grub-mkimage: info: locating the section .bss at 0x77e0. > grub-mkimage: info: reading /usr/lib/grub/i386-pc/crypto.mod. > grub-mkimage: info: reading /usr/lib/grub/i386-pc/gcry_crc.mod. > grub-mkimage: info: reading /usr/lib/grub/i386-pc/gzio.mod. > grub-mkimage: info: reading /usr/lib/grub/i386-pc/diskfilter.mod. > grub-mkimage: info: reading /usr/lib/grub/i386-pc/raid6rec.mod. > grub-mkimage: info: reading /usr/lib/grub/i386-pc/lzopio.mod. > grub-mkimage: info: reading /usr/lib/grub/i386-pc/zstd.mod. > grub-mkimage: info: reading /usr/lib/grub/i386-pc/btrfs.mod. > grub-mkimage: info: kernel_img=0x7f42a5b1d010, kernel_size=0x77cf. > grub-mkimage: info: the core size is 0x10092. > grub-mkimage: info: reading /usr/lib/grub/i386-pc/lzma_decompress.img. > grub-mkimage: info: reading /usr/lib/grub/i386-pc/diskboot.img. > grub-mkimage: info: writing 0x200 bytes. > grub-mkimage: info: writing 0x10ba2 bytes. > grub-mkimage: error: cannot sync `stdout': Invalid argument. > 69026 Is it a problem or am I missing something? Compression could alleviate "core.img is unusually large. It won't fit in the embedding area." issue. https://lists.gnu.org/archive/html/grub-devel/2019-11/msg00057.html --- Eugene Bright IT-engineer Tel: +380635426132
_______________________________________________ Grub-devel mailing list Grub-devel@gnu.org https://lists.gnu.org/mailman/listinfo/grub-devel
