Isolinux Checksum Error Sorry
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while booting Isolinux Messages sorted by: [ date ] [ thread ] [ subject
Etcdisolinux Image Checksum Error Sorry
] [ author ] Hi, > makehybrid \ > mkisofs -o isos/muaaa.iso temp/ \ > -eltorito-boot temp/isolinux/isolinux.bin \ > -no-emul-boot \ > -iso -joliet
Ultraiso
-boot-load-size 4 \ > -default-volume-name "Custom Installer" \ > -eltorito-platform temp/isolinux/boot.cat > ... > [at boot time:] > Image checksum error, sorry imgburn I guess it is the Boot Information Table feature that's missing with your ISO production run. The boot image isolinux.bin expects to get patched by some parameters, including a checksum. See man mkisofs http://cdrecord.berlios.de/private/man/cdrecord/mkisofs.8.html paragraph "EL TORITO BOOT INFORMATION TABLE" Do i get it right that "makehybrid" is a shortcut for hdiutil makehybrid as of https://developer.apple.com/library/mac/documentation/Darwin/Reference/ManPages/man1/hdiutil.1.html There seems to be no option for above feature. Programs which can produce compliant ISO images are: program="mkisofs" program="genisoimage" program="xorriso -as mkisofs" Use one of them instead of your ISO production command: cd temp $program \ -o ../isos/muaaa.iso \ -b isolinux/isolinux.bin \ -c isolinux/boot.cat \ -no-emul-boot -boot-load-size 4 -boot-info-table \ -J \ -V "Custom Installer" \ . I read in man hdiutil that -eltorito-platform gets a parameter like 0. How come yours gets the name of the boot catalog ? Have a nice day :) Thomas Previous message: [syslinux] Image checksum error while booting Isolinux Next message: [syslinux] Image checksum error while booting Isolinux Messages sorted by: [ date ] [ thread ] [ subject ] [ author ] More information about the Syslinux mailing list
UTC - 8 hours Can't get UBCD to boot - checksum error Moderators: StopSpazzing, Icecube Page 1 of 1 [ 9 posts ] Print view Previous topic | Next topic Author Message vizfxman Post subject: Can't get UBCD to boot - checksum errorPosted: Sat May 29, 2010 3:31 am Joined: Sat May 29, 2010 3:19 amPosts: 4 Greetings all, I'm sure this is a noob question, but after scouring the internet for answers and coming up empty, I'm frustrated and desperate. I have a Mac Pro and am running Snow Leopard and Windows 7 Pro (64-bit). I'm attempting to flash a new graphics card, http://www.syslinux.org/archives/2013-November/021111.html and so I have to be able to boot up the UBCD to a prompt. I've burned five CD's now and each and every one gives me the same message: "ISOLINUX 3.86 2010-04-01 ETCDisolinux: Image checksum error, sorry... Boot failed: press a key to retry..." I'm not sure what I'm doing wrong. I downloaded ubcd501.iso and am burning that to CD using MagicISO. I've tried burning at the slowest speed and at mode 1 and http://www.ultimatebootcd.com/forums/viewtopic.php?t=2400 mode 2. I also downloaded md5sum and verified that everything matched, and it does. I should also note that I'm trying to add a few files in a folder called "Mac" to the iso (in MagicIso) before burning. Any help is greatly appreciated. Top Icecube Post subject: Re: Can't get UBCD to boot - checksum errorPosted: Sat May 29, 2010 11:21 am Joined: Fri Jan 11, 2008 2:52 pmPosts: 1278 vizfxman wrote:I should also note that I'm trying to add a few files in a folder called "Mac" to the iso (in MagicIso) before burning. This is the problem. NEVER use an ISO editor for bootable CDs. Always create the iso again with mkisofs. You get the checksum error because the isolinux.bin (boot loader) file needs to be patched, so it knows its location on the ISO. This patching is done by adding the "-boot-info-table" parameter to mkisofs. Extract the UBCD501.iso to a dir named ubcd-extracted. Add your Mac folder in the ubcd-extracted dir. Open a command prompt and cd to ubcd-extracted. Run the following to generate the iso: Code:mkisofs -iso-level 4 -l -R -J -joliet-long -D -V "UBCD501" -o "../ubcd501-custum.iso" -b "boot/isolinux/isolinux.bin" -c "boot/isolinux/boot.catalog" -hide "boot/isolinux/boot.catalog" -hide-joliet "boot/isolinux/boot.catalog" -no-emul-boot -boot-load-size 4 -boot-info-table . You can also test the ISO first in a virtual machine like VirtualBox,
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