search for: isohybridized

> Hi, > > > Not being compatible with EFI/GPT is already a problem for the Perl > > variant. > > The relation of both is: > > isohybrid.in/.pl is being left behind. > http://git.kernel.org/cgit/boot/syslinux/syslinux.git/tree/utils/Makefile > has: > SCRIPT_TARGETS += isohybrid.pl # about to be obsoleted > > isohybrid.c replaces it feature-wise

When call isohybrid with option '-u', it overflows on a 32 bits host. It seeks to 512 bytes before the end of the image to install gpt header. If the size of image is larger than LONG_MAX, it overflows fseek() and cause error: isohybrid: image-x86-64-20140505110100.iso: seek error - 8: Invalid argument Replace fseek with fseeko to fix this issue. Signed-off-by: Kai Kang <kai.kang at

Hello all, Past few days I was working on porting the isohybrid perl script to c. (-> https://fedorahosted.org/fedora-engineering-services/ticket/15) The first patch towards the same is attached with this mail. And the same could also be accessed from: http://pjp.dgplug.org/tools/syslinux-3.86-isohybrid.patch I would really appreciate it if somebody could have a look at it and let me know

> Hi, > > Ady: > > Since both included variants are currently different, and both > > variants have problems > > I am not aware of problems of the perl version. It is just lacking > the newer features which support EFI/GPT and Mac/APM. > The known bugs of isohybrid.c are with those newer features. > http://www.syslinux.org/archives/2012-May/017843.html >

Dear list, I have been trying to debug a build failure for a while in the utils directory on isohybrid which seems to be distro specific. On Fedora 17 64bit the build completes without problems, but under both Ubuntu 32/64bit 11.10 and 12.04 I get the following: tim at oxygen:/usr/src/git/syslinux/utils$ make gcc -O2 -luuid -o isohybrid isohybrid.o isohdpfx.o isohybrid.o: In function

...One false positive complaint appears: GPT backup problems: Implausible header LBA 1951743, Implausible array LBA 1951711 It could be avoided by adjusting the ISO filesystem size to the size of the image file. Regrettably this causes isohybrid.c to add another MiB of padding if the image is isohybridized again. So i will ponder how to recognize the habit of isohybrid.c as a tolerable deviation - or how to let isohybrid.c recognize that the filesystem already has a backup GPT at its end, so that no new space is needed. Have a nice day :) Thomas

When call isohybrid with option '-u', it overflows on a 32 bits host. It seeks to 512 bytes before the end of the image to install gpt header. If the size of image is larger than LONG_MAX, it overflows fseek() and cause error: isohybrid: wrlinux-image-x86-64-20140505110100.iso: seek error - 8: Invalid argument Check the offset and call fseek() multi-times if offset is too large.

> Hi, > > > All the "isohybrid.exe" I know of are based on the Perl variant. > > I just got one from > http://www.filewatcher.com/m/isohybrid.exe.39568-0.html > > Its strings seem not to stem from isohybrid.pl. > > Digging in slitaz source brought a shell script (that would be > variant #5 then): >

> Hi, > > at [Tails] we're in the process of shipping hybrid ISO images by > default again. We're using `isohybrid -h 255 -s 63' to do that (thanks > to the advice we got on this mailing-list a few months ago!). > > And then, we've discovered that sometimes, isohybrid produces ISO > images whose size is not a multiple of 2048 bytes. > > Who cares?

Hi, at [Tails] we're in the process of shipping hybrid ISO images by default again. We're using `isohybrid -h 255 -s 63' to do that (thanks to the advice we got on this mailing-list a few months ago!). And then, we've discovered that sometimes, isohybrid produces ISO images whose size is not a multiple of 2048 bytes. Who cares? ... may you ask. Well, apparently, VirtualBox does:

Hi, > All the "isohybrid.exe" I know of are based on the Perl variant. I just got one from http://www.filewatcher.com/m/isohybrid.exe.39568-0.html Its strings seem not to stem from isohybrid.pl. Digging in slitaz source brought a shell script (that would be variant #5 then): http://hg.slitaz.org/wok/file/313b384e2a06/syslinux/stuff/tools/isohybrid.sh But isohybrid.exe must

>What I reminder from it: > > The first "isohybrid" was in perl. > But that made perl a run-time dependency. > > A compiled version of "isohybrid" removed that > run-time dependency on perl. > > >What I think of it: > > The Perl variant of isohybrid should be removed > from the source tree. One advantage of the Perl one for me

On 2014?05?12? 10:49, H. Peter Anvin wrote: > On 05/11/2014 06:56 PM, Kai Kang wrote: >> When call isohybrid with option '-u', it overflows on a 32 bits host. It >> seeks to 512 bytes before the end of the image to install gpt header. If >> the size of image is larger than LONG_MAX, it overflows fseek() and >> cause error: >> >> isohybrid:

On 2014?05?12? 22:38, H. Peter Anvin wrote: > That is because it needs to use fseeko() and use off_t. Do you mean it does need a patch for isohybrid.c. And the patch looks like: #if _FILE_OFFSET_BITS == 64 fseeko(...) #else fseek(...) Regards, Kai > > On May 11, 2014 11:53:17 PM PDT, Kang Kai <Kai.Kang at windriver.com> wrote: >> On 2014?05?12? 10:49, H. Peter

Hi, it would be interesting to know for what solution TAILS decides and whether any problems arise with it. ------------------------------------------------------- On with the fundamental discussion of MBR cylinders: Ady wrote: > 1_ The resulting ISO9660 file system size shall be a multiple of 2048 > (bytes_per_sector). The known ISO production programs comply to this condition.

Hi, > Not being compatible with EFI/GPT is already a problem for the Perl > variant. The relation of both is: isohybrid.in/.pl is being left behind. http://git.kernel.org/cgit/boot/syslinux/syslinux.git/tree/utils/Makefile has: SCRIPT_TARGETS += isohybrid.pl # about to be obsoleted isohybrid.c replaces it feature-wise and adds new features. Only those new features contain the bugs,

Op 2014-06-23 om 20:09 schreef syslinux-bot for H. Peter Anvin: > Commit-ID: f9dad5340bcefe34d860e991e8743be01a4d6c3c > Gitweb: http://www.syslinux.org/commit/f9dad5340bcefe34d860e991e8743be01a4d6c3c > Author: H. Peter Anvin <hpa at zytor.com> > AuthorDate: Mon, 23 Jun 2014 20:06:51 -0700 > Committer: H. Peter Anvin <hpa at zytor.com> > CommitDate: Mon, 23

> Hi, > > it would be interesting to know for what solution > TAILS decides and whether any problems arise with it. > > ------------------------------------------------------- > On with the fundamental discussion of MBR cylinders: > > Ady wrote: > > 1_ The resulting ISO9660 file system size shall be a multiple of 2048 > > (bytes_per_sector). > >

...this text at the end of > http://www.syslinux.org/wiki/index.php/ISOLINUX > > > Not yet covered are: > > - The topic how to produce an UEFI boot image (FAT filesystem) > which can be used with option -e of genisoimage or xorrisofs. > > - The topic how to bring the isohybridized image onto an USB stick. > (Especially on MS-Windows ...) > > > Have a nice day :) > > Thomas Here are my personal opinions / comments. The items do not follow any particular order, and I might be slightly overlapping or repeating some of them. My apologies. _ Wiki shoul...

Hi, i wrote: > > Well, it is about really usable capabilities of isohybrid, Ady wrote: > but their practical combination, usage, effects, > goals... are not expressed clearly enough for the common user to put in > practice. How to express the embarrassing fact that ISOLINUX is not ready for UEFI but isohybrid is ? http://www.syslinux.org/wiki/index.php/Isohybrid#UEFI would