tazlito rev 530 tip

Add EFI eltorito boot file truncate warning
author Pascal Bellard <pascal.bellard@slitaz.org>
date Wed Nov 18 09:07:41 2020 +0000 (2 months ago)
parents 8654e61dc1b3
children
files tazlito
line diff
     1.1 --- a/tazlito	Sat Oct 31 16:26:51 2020 +0000
     1.2 +++ b/tazlito	Wed Nov 18 09:07:41 2020 +0000
     1.3 @@ -274,7 +274,9 @@
     1.4  
     1.5  fix_efi_boot_img_size() {
     1.6  	local n=$3
     1.7 -	[ $n -gt 65535 ] && n=65535
     1.8 +	# Sector count on 16 bits (max 128MB), see offset 6-7 in page 11 of
     1.9 +	# https://pdos.csail.mit.edu/6.828/2014/readings/boot-cdrom.pdf
    1.10 +	[ $n -gt 65535 ] && n=65535 && echo "Warning: truncate EFI eltorito boot file"
    1.11  	set32 $((0x66+2048*$(first_block $2/boot/isolinux/boot.cat))) $n $1 16
    1.12  	set32 $((0x1C+2048*$4)) $(($4*4)) $1
    1.13  }