Re: Problem creating iso for a USB stick
Hi, Stelian Iancu wrote: Today once I got back to work I wanted to recreate the bad iso for you to test. So I have created a new fresh VM with Debian 7.3.0 (and xorriso 1.2.2) and this time it worked flawlessly. That's much better than if it would work for me but not for you. Note (again), this is good only for booting PC-BIOS but not for EFI firmware (some hardware for amd64 has it). I took your advice and I took the -isohybrid-mbr template from the original ISO image as well. Could it be that? Before I used to take the one that comes with the syslinux package. It could. But it would not explain why you succeeded with your xorriso-1.3.4 experiment. It was a bit sloppy by me to use all the first 32768 bytes of the original image, because now we have copied a wrong GPT partition table into the new image. PC-BIOS should not care. EFI or partition editors might take offense. More neat is to cut out only the first 512 bytes of the image so that it has the same size as the MBR template isohdpfx.bin from a locally installed SYSLINUX: dd if=/root/debian/debian-7.3.0-amd64-netinst.iso \ bs=512 count=1 \ of=/root/debian/debian-7.3.0-amd64-netinst.mbr xorriso -as mkisofs ... \ -isohybrid-mbr /root/debian/debian-7.3.0-amd64-netinst.mbr \ ... This is only a problem, because we did not prepare the image for EFI booting by the omitted (non-jigdo) options. With those options, the GPT would be updated to match the new ISO image size and position of the EFI boot image. Have a nice day :) Thomas -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/1068264540584255...@scdbackup.webframe.org
Re: Problem creating iso for a USB stick
On Thu, Jan 16, 2014 at 4:55 PM, Brian a...@cityscape.co.uk wrote: On Thu 16 Jan 2014 at 16:02:00 +0100, Stelian Iancu wrote: I am trying to create a USB stick with Wheezy which would auto-install. I've managed to create the iso successfully following the instructions here: https://wiki.debian.org/DebianInstaller/Preseed/EditIso I've checked the resulting iso with vmware fusion on my mac and it works, i.e. it auto-installs Debian successfull. However, after writing it to a USB stick, it doesn't boot, and I don't know why. What is the output of fdisk -l your_ISO ? It is this: fdisk -l test.iso GNU Fdisk 1.2.4 Copyright (C) 1998 - 2006 Free Software Foundation, Inc. This program is free software, covered by the GNU General Public License. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. Disk /root/debian/test.iso: 263 MB, 263192576 bytes 64 heads, 32 sectors/track, 251 cylinders Units = cylinders of 2048 * 512 = 1048576 bytes Device Boot Start End Blocks Id System /root/debian/test.iso1 * 1 251 257008 17 Hidd HPFS/NTFS I have no idea why it's HPFS/NTFS. The command I used to create the iso is as follows: xorriso -as mkisofs -D -r -J -joliet-long -L -A Custom Install CD -b isolinux/isolinux.bin -c isolinux/boot.cat -iso-level 3 -no-emul-boot -partition_offset 16 -boot-load-size 4 -boot-info-table -o ../test.iso -isohybrid-mbr /usr/lib/syslinux/isohdpfx.bin ../cd Any ideas what I might be doing wrong? Not really (learning to use xorriso is on my to-do list) but the Debian images have the command used for their creation in the mkisofs file in .disk. You could also try the isohybrid command, which comes with the syslinux package. I just tried the isohybrid command and it didn't help. After dd'ing the resulting iso to the USB drive, it still won't boot. It's funny you mention the mkisofs from .disk. By some sort of a miracle, I've found it as well. It looks like this: /home/93sam/xorriso -as mkisofs -r -checksum_algorithm_iso md5,sha1,sha256,sha512 -V 'Debian 7.3.0 amd64 1' -o /org/ cdbuilder.debian.org/dst/deb-cd/out/2amd64/debian-7.3.0-amd64-NETINST-1.iso-jigdo-jigdo /org/ cdbuilder.debian.org/dst/deb-cd/out/2amd64/debian-7.3.0-amd64-NETINST-1.jigdo-jigdo-template /org/ cdbuilder.debian.org/dst/deb-cd/out/2amd64/debian-7.3.0-amd64-NETINST-1.template-jigdo-map Debian=/org/ cdbuilder.debian.org/src/ftp/debian/ -jigdo-exclude boot1 -md5-list /org/ cdbuilder.debian.org/src/deb-cd/tmp/2amd64/wheezy/md5-check-jigdo-min-file-size 1024 -jigdo-exclude 'README*' -jigdo-exclude /doc/ -jigdo-exclude /md5sum.txt -jigdo-exclude /.disk/ -jigdo-exclude /pics/ -jigdo-exclude 'Release*' -jigdo-exclude 'Packages*' -jigdo-exclude 'Sources*' -J -isohybrid-mbr syslinux/usr/lib/syslinux/isohdpfx.bin -J -joliet-long -cache-inodes -b isolinux/isolinux.bin -c isolinux/boot.cat-no-emul-boot -boot-load-size 4 -boot-info-table -eltorito-alt-boot -e boot/grub/efi.img -no-emul-boot -isohybrid-gpt-basdat -isohybrid-apm-hfsplus boot1 CD1 After removing all the jigdo related options, I've tried the resulting command and it didn't work. It gave me an error related to -isohybrid-gpt-basdat. Upon further investigation, I found out that the version of xorriso that is in Wheezy is older (1.2.2) and apparently doesn't support this option. The current version is 1.3.4. Also, as you can see, they use a manually compiled xorriso, I would assume: /home/93sam/xorriso. So I guess I will try to compile xorriso manually and try, again, with the Debian command (without the jigdo options). -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/16012014154903.4110dd4a0...@desktop.copernicus.demon.co.uk
Re: Problem creating iso for a USB stick
On Thu, Jan 16, 2014 at 6:23 PM, Thomas Schmitt scdbac...@gmx.net wrote: Hi, Hi, please see below. i am the developer of xorriso and always interested in learning about problems. However, after writing it to a USB stick, it doesn't boot, and I don't know why. What kind of machine do you use ? It is a regular PC with a Intel i7 processor. What kind of firmware does it have: PC-BIOS , UEFI, ... ? PC bios. How far does it get with booting ? Not very far. The machine starts and the USB stick flashes briefly. Then the initial screen (with details about the BIOS, hard drives, memory, etc.) is displayed then a black screen with a blinking cursor and that's it. Does the USB stick make any difference when plugged in or is it just ignored ? No it doesn't make any difference. With or without it, the behavior is the same (see above). How did you put the result onto USB stick ? I tried three different methods: 1. I've done it in MacOSX with the method described here: http://www.ubuntu.com/download/desktop/create-a-usb-stick-on-mac-osx 2. I've done it in Linux (Debian, the same machine I used to create it) by dd'ing the contents of the iso to the USB stick. 3. Again, in Linux (same machine) by copying the iso directly to /dev/sdm and then doing sync. I've checked the resulting iso with vmware fusion on my mac and it works, Did you submit it as emulated hard disk (rather than as CD-ROM) ? BIOS treats both device classes very different. (MBR vs. El Torito.) An USB stick would be treated by real BIOS as hard disk. Umm ... don't know for sure, when you create a new virtual machine, it asks for a image. And there I selected it. It seems to me it is a CD-ROM. I should note that, before finding out about xorriso, I tried to create the iso using genisoimage and that one worked as well with vmware in exactly the same way. Which leads me to believe that it is seeing it as a CD-ROM. xorriso -as mkisofs -D -r -J -joliet-long -L -A Custom Install CD -b isolinux/isolinux.bin -c isolinux/boot.cat -iso-level 3 -no-emul-boot -partition_offset 16 -boot-load-size 4 -boot-info-table -o ../test.iso -isohybrid-mbr /usr/lib/syslinux/isohdpfx.bin ../cd This looks ok as far as PC-BIOS booting from USB stick is concerned. It should work on i386 and amd64 processors. You may leave out -partition_offset 16 and check whether this changes anything with bootability. Some machines demand it, some hate it. Most work with both variants. (If you want to see Custom Install CD as name of the filesystem then you should use -V rather than -A.) As I said in my previous mail in the thread, I've tried to use the official xorriso command that the Debian devs used to generate the netinst image. However, it fails because of -isohybrid-gpt-basdat (I guess because xorriso in Wheezy is 1.2.2 and this option was added later). Would it be possible for you to make a deb for Wheezy with the latest version of xorriso or do I have to compile it by hand? Have a nice day :) You too and thanks a lot for your help, it is greatly appreciated! Thomas
Re: Problem creating iso for a USB stick
On Fri, Jan 17, 2014 at 10:59 AM, Stelian Iancu stel...@iancu.ch wrote: On Thu, Jan 16, 2014 at 6:23 PM, Thomas Schmitt scdbac...@gmx.net wrote: Hi, Hi, please see below. i am the developer of xorriso and always interested in learning about problems. However, after writing it to a USB stick, it doesn't boot, and I don't know why. What kind of machine do you use ? It is a regular PC with a Intel i7 processor. What kind of firmware does it have: PC-BIOS , UEFI, ... ? PC bios. How far does it get with booting ? Not very far. The machine starts and the USB stick flashes briefly. Then the initial screen (with details about the BIOS, hard drives, memory, etc.) is displayed then a black screen with a blinking cursor and that's it. Does the USB stick make any difference when plugged in or is it just ignored ? No it doesn't make any difference. With or without it, the behavior is the same (see above). How did you put the result onto USB stick ? I tried three different methods: 1. I've done it in MacOSX with the method described here: http://www.ubuntu.com/download/desktop/create-a-usb-stick-on-mac-osx 2. I've done it in Linux (Debian, the same machine I used to create it) by dd'ing the contents of the iso to the USB stick. 3. Again, in Linux (same machine) by copying the iso directly to /dev/sdm and then doing sync. I've checked the resulting iso with vmware fusion on my mac and it works, Did you submit it as emulated hard disk (rather than as CD-ROM) ? BIOS treats both device classes very different. (MBR vs. El Torito.) An USB stick would be treated by real BIOS as hard disk. Umm ... don't know for sure, when you create a new virtual machine, it asks for a image. And there I selected it. It seems to me it is a CD-ROM. I should note that, before finding out about xorriso, I tried to create the iso using genisoimage and that one worked as well with vmware in exactly the same way. Which leads me to believe that it is seeing it as a CD-ROM. xorriso -as mkisofs -D -r -J -joliet-long -L -A Custom Install CD -b isolinux/isolinux.bin -c isolinux/boot.cat -iso-level 3 -no-emul-boot -partition_offset 16 -boot-load-size 4 -boot-info-table -o ../test.iso -isohybrid-mbr /usr/lib/syslinux/isohdpfx.bin ../cd This looks ok as far as PC-BIOS booting from USB stick is concerned. It should work on i386 and amd64 processors. You may leave out -partition_offset 16 and check whether this changes anything with bootability. Some machines demand it, some hate it. Most work with both variants. (If you want to see Custom Install CD as name of the filesystem then you should use -V rather than -A.) As I said in my previous mail in the thread, I've tried to use the official xorriso command that the Debian devs used to generate the netinst image. However, it fails because of -isohybrid-gpt-basdat (I guess because xorriso in Wheezy is 1.2.2 and this option was added later). Would it be possible for you to make a deb for Wheezy with the latest version of xorriso or do I have to compile it by hand? Have a nice day :) You too and thanks a lot for your help, it is greatly appreciated! Thomas In the end, I went ahead and manually compiled xorriso 1.3.4 and with this one and the command that Debian itself uses to create the netinst iso it worked (without the jigdo stuff). The resulting iso is bootable from the USB key. Thanks a lot to everybody for their help!
Re: Problem creating iso for a USB stick
Hi, first question because i am lacking other valid ideas: Does your machine boot the original netinst ISO from USB stick ? Second question: How large is your result image ? Can you upload it to a place from where i could get it for inspection ? For the details: /root/debian/test.iso1 * 1 251 257008 17 Hidd HPFS/NTFS I have no idea why it's HPFS/NTFS That's just the default type as proposed by H. Peter Anvin, the author of SYSLINUX/ISOLINUX. debian-7.3.0-i386-netinst.iso has the same partition type. [xorriso with arguments from Debian 7.3 amd64] It gave me an error related to -isohybrid-gpt-basdat You'd need xorriso-1.2.4 for -isohybrid-gpt-basdat. But you do not need that option for booting via BIOS. Only if you boot via EFI and have included a properly equipped FAT filesystem image as file /boot/grub/efi.img. Also, as you can see, they use a manually compiled xorriso, I would assume: /home/93sam/xorriso Telling from the output of xorriso -indev debian-7.3.0-i386-netinst.iso -pvd_info debian-cd used xorriso-1.2.6 for production of its 7.3 ISOs. Probably compiled from the GNU xorriso tarball, not from Debian library packages: http://www.gnu.org/software/xorriso/xorriso-1.2.6.tar.gz I would nevertheless prefer if you make experiments with the current release: http://www.gnu.org/software/xorriso/xorriso-1.3.4.tar.gz To avoid conflicts with the installed Debian packages, you may omit make install and use xorriso-1.3.4 as /...some.path.../xorriso-1.3.4/xorriso/xorriso -as mkisofs ... Does the USB stick make any difference when plugged in or is it just ignored ? No it doesn't make any difference. With or without it, the behavior is the same (see above). So the system does not have any other bootable disk attached, which would step in when the USB stick is missing ? Thus my first question above. 1. I've done it in MacOSX with the method described here:http://www.ubuntu.com/download/desktop/create-a-usb-stick-on-mac-osx Step 3 looks suspicious. Afterwards the ISO might not be an ISO any more. 2. I've done it in Linux (Debian, the same machine I used to create it) by dd'ing the contents of the iso to the USB stick. Onto e.g. /dev/sdb would be right, onto e.g. /dev/sdb1 would be wrong. 3. Again, in Linux (same machine) by copying the iso directly to /dev/sdm and then doing sync. /dev/sdm ... Lots of disk devices attached ? What was the difference between dd'ing the contents of the iso and copying the iso directly ? Just the use of command dd versus command cp ? Both should have the same effect with a block device as target. Both should be ok. The fdisk output looks plausible. Option -lu rather than -l would show more exact block addresses rather than cylinder addresses. But the type Hidden NTFS alone indicates that the partition table of the image found its right place on the USB stick. Did you submit it as emulated hard disk (rather than as CD-ROM) ? Umm ... don't know for sure, when you create a new virtual machine, it asks for a image. These are the hardships of GUI operation. With a qemu command line one could tell whether you used -hda or -cdrom to submit the image file. Would it be possible for you to make a deb for Wheezy with the latest version of xorriso or do I have to compile it by hand? I am not a Debian regular. You would need three new library packages and one application package. The GNU xorriso tarball is intended to ease this plight: tar xzf xorriso-1.3.4.tar.gz cd xorriso-1.3.4 ./configure make If all went well, then ./xorriso/xorriso -version should tell some lines about xorriso and its supporing libraries. As said above, you may use this program without make install. Alternatively, Debian testing currently provides xorriso-1.3.2 and the necessary library packages. Have a nice day :) Thomas -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/9899645669021282...@scdbackup.webframe.org
Re: Problem creating iso for a USB stick
On Fri, Jan 17, 2014 at 11:53 AM, Thomas Schmitt scdbac...@gmx.net wrote: Hi, Hi Thomas, See my previous mail. Made it work with xorriso 1.3.4. Do you still want me to go ahead and do what you wrote below? Thanks! S. first question because i am lacking other valid ideas: Does your machine boot the original netinst ISO from USB stick ? Second question: How large is your result image ? Can you upload it to a place from where i could get it for inspection ? For the details: /root/debian/test.iso1 * 1 251 257008 17 Hidd HPFS/NTFS I have no idea why it's HPFS/NTFS That's just the default type as proposed by H. Peter Anvin, the author of SYSLINUX/ISOLINUX. debian-7.3.0-i386-netinst.iso has the same partition type. [xorriso with arguments from Debian 7.3 amd64] It gave me an error related to -isohybrid-gpt-basdat You'd need xorriso-1.2.4 for -isohybrid-gpt-basdat. But you do not need that option for booting via BIOS. Only if you boot via EFI and have included a properly equipped FAT filesystem image as file /boot/grub/efi.img. Also, as you can see, they use a manually compiled xorriso, I would assume: /home/93sam/xorriso Telling from the output of xorriso -indev debian-7.3.0-i386-netinst.iso -pvd_info debian-cd used xorriso-1.2.6 for production of its 7.3 ISOs. Probably compiled from the GNU xorriso tarball, not from Debian library packages: http://www.gnu.org/software/xorriso/xorriso-1.2.6.tar.gz I would nevertheless prefer if you make experiments with the current release: http://www.gnu.org/software/xorriso/xorriso-1.3.4.tar.gz To avoid conflicts with the installed Debian packages, you may omit make install and use xorriso-1.3.4 as /...some.path.../xorriso-1.3.4/xorriso/xorriso -as mkisofs ... Does the USB stick make any difference when plugged in or is it just ignored ? No it doesn't make any difference. With or without it, the behavior is the same (see above). So the system does not have any other bootable disk attached, which would step in when the USB stick is missing ? Thus my first question above. 1. I've done it in MacOSX with the method described here: http://www.ubuntu.com/download/desktop/create-a-usb-stick-on-mac-osx Step 3 looks suspicious. Afterwards the ISO might not be an ISO any more. 2. I've done it in Linux (Debian, the same machine I used to create it) by dd'ing the contents of the iso to the USB stick. Onto e.g. /dev/sdb would be right, onto e.g. /dev/sdb1 would be wrong. 3. Again, in Linux (same machine) by copying the iso directly to /dev/sdm and then doing sync. /dev/sdm ... Lots of disk devices attached ? What was the difference between dd'ing the contents of the iso and copying the iso directly ? Just the use of command dd versus command cp ? Both should have the same effect with a block device as target. Both should be ok. The fdisk output looks plausible. Option -lu rather than -l would show more exact block addresses rather than cylinder addresses. But the type Hidden NTFS alone indicates that the partition table of the image found its right place on the USB stick. Did you submit it as emulated hard disk (rather than as CD-ROM) ? Umm ... don't know for sure, when you create a new virtual machine, it asks for a image. These are the hardships of GUI operation. With a qemu command line one could tell whether you used -hda or -cdrom to submit the image file. Would it be possible for you to make a deb for Wheezy with the latest version of xorriso or do I have to compile it by hand? I am not a Debian regular. You would need three new library packages and one application package. The GNU xorriso tarball is intended to ease this plight: tar xzf xorriso-1.3.4.tar.gz cd xorriso-1.3.4 ./configure make If all went well, then ./xorriso/xorriso -version should tell some lines about xorriso and its supporing libraries. As said above, you may use this program without make install. Alternatively, Debian testing currently provides xorriso-1.3.2 and the necessary library packages. Have a nice day :) Thomas
Re: Problem creating iso for a USB stick
Hi, In the end, I went ahead and manually compiled xorriso 1.3.4 and with this one and the command that Debian itself uses to create the netinst iso it worked (without the jigdo stuff). The resulting iso is bootable from the USB key. From my remote position i would say that your firmware wanted to see the GPT rather than an MBR partition table. So it would be EFI and not BIOS. Whatever, congrats to your success. Have a nice day :) Thomas -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/3972645670369242...@scdbackup.webframe.org
Re: Problem creating iso for a USB stick
On Fri, Jan 17, 2014 at 12:07 PM, Thomas Schmitt scdbac...@gmx.net wrote: Hi, In the end, I went ahead and manually compiled xorriso 1.3.4 and with this one and the command that Debian itself uses to create the netinst iso it worked (without the jigdo stuff). The resulting iso is bootable from the USB key. From my remote position i would say that your firmware wanted to see the GPT rather than an MBR partition table. So it would be EFI and not BIOS. Whatever, congrats to your success. I would guess you're right :-). It's weird though, because the actual installation seems to fail afterwards (the partitioning complains about something related to EFI, I would need to double check). But that's another issue. Thanks again for your help! Have a nice day :) Thomas
Re: Problem creating iso for a USB stick
Hi, See my previous mail. Made it work with xorriso 1.3.4. Do you still want me to go ahead and do what you wrote below? We could be curious and leave out the options -eltorito-alt-boot -e boot/grub/efi.img -no-emul-boot -isohybrid-gpt-basdat If my theory about the need for GPT and EFI is correct, then the resulting image should fail to boot. If it does boot too, then one should file a bug report and ask for an update of xorriso in the stable release. In this case it would help to test again with the xorriso-1.3.2 package from Debian testing. This one would be more acceptable than a freshly uploaded 1.3.4, because it is longer tested and would be less work for the Debian people. It's weird though, because the actual installation seems to fail afterwards (the partitioning complains about something related to EFI, I would need to double check). But that's another issue. If you get to the Debian installer menu, then the firmware, xorriso and the bootloader (SYSLINUX for BIOS or GRUB2 for EFI) have done their job properly. Any further failure would be an issue for the debian-installer people, i assume. I would advise to first test with the original netinst ISO, because they might not feel in charge for your altered one. Either you will find that the original works and possibly learn what you did wrong during modification, or it wont't work and is worth a bug report then. One possible pitfall with your new image could be the Volume Id, which is supposed to show up in the booted system underneath directory /dev/disk/by-label. If the Debian installer looks for its own name, it will find ISOIMAGE instead, unless you used the original option: -V 'Debian 7.3.0 amd64 1' Have a nice day :) Thomas -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/5072645676132178...@scdbackup.webframe.org
Re: Problem creating iso for a USB stick
Hi, See my previous mail. Made it work with xorriso 1.3.4. Do you still want me to go ahead and do what you wrote below? We could be curious and leave out the options -eltorito-alt-boot -e boot/grub/efi.img -no-emul-boot -isohybrid-gpt-basdat Correcting myself: Option -isohybrid-apm-hfsplus should be omitted too, in this case. Have a nice day :) Thomas -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/20287645674732895...@scdbackup.webframe.org
Re: Problem creating iso for a USB stick
On Fri, Jan 17, 2014 at 1:10 PM, Thomas Schmitt scdbac...@gmx.net wrote: Hi, See my previous mail. Made it work with xorriso 1.3.4. Do you still want me to go ahead and do what you wrote below? We could be curious and leave out the options -eltorito-alt-boot -e boot/grub/efi.img -no-emul-boot -isohybrid-gpt-basdat Correcting myself: Option -isohybrid-apm-hfsplus should be omitted too, in this case. So I took out the following: -eltorito-alt-boot -e boot/grub/efi.img -no-emul-boot -isohybrid-gpt-basdat -isohybrid-apm-hfsplus which basically left me with the original command and, surprise, it worked! So it is indeed xorriso that is in Debian stable that has an issue (given that with my manually compiled xorriso it works). I will have a look in the bugs database if there already is a bug for this issue and if not I will create one. But I do have to say that I find it a bit disingenuous from the Debian devs that they create the stable iso with a xorriso that's not in Debian stable. But maybe it's a known issue, I will take a look. Many thanks Thomas, you were great! If you need me to do anything else to help with this issue, please let me know. Have a nice day :) Thomas
Re: Problem creating iso for a USB stick
Hi, which basically left me with the original command and, surprise, it worked! That's quite surprising. There is no corresponding bug fix to see in my ChangeLog. (... and i cannot remember either ...) Although xorriso-1.2.2 is outdated, it would still be good to know how i accidently fixed the problem. Maybe it is only covered up but not gone. Do you still have the bad image that does not boot ? If so, can i have it for inspection ? And the working image too ? Filing a Debian bug might best be done after we know what's going on. Especially it will be interesting to know whether xorriso-1.3.2 as of Debian testing is ok. I would try to reproduce your production steps with xorriso-1.2.2 if i knew from what ISO image you started (URL please) and what manipulations you did before you packed it up by xorriso. I doubt that the missing option -V in your first command can cause a zero-reaction by the BIOS. It should only later be of importance, if ever. -- It seems not to happen trivially: I mounted debian-7.3.0-i386-netinst.iso and repacked it by quite the xorriso command which you mentioned in your first post of this thread: mount -o loop debian-7.3.0-i386-netinst.iso /mnt xorriso-1.2.2 \ -as mkisofs -D -r -J -joliet-long -L -A Custom Install CD \ -b isolinux/isolinux.bin -c isolinux/boot.cat -iso-level 3 \ -no-emul-boot -partition_offset 16 -boot-load-size 4 \ -boot-info-table -o test.iso \ -isohybrid-mbr debian-7.3.0-i386-netinst.iso \ /mnt (I took the -isohybrid-mbr template from the original ISO image. So it is ensured that its version matches the SYSLINUX programs inside the ISO image.) Onto USB stick: dd if=test.iso bs=2048 of=/dev/sdb On my test machine (a 64 bit AMD with BIOS) it does boot to the Debian installer menue. -- Debian devs [...] create the stable iso with a xorriso that's not in Debian stable. But maybe it's a known issue, I will take a look. It is known to the debian-cd mailing list. Just a consequence of the long freeze windows before Debian release. Have a nice day :) Thomas -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/9873645692050754...@scdbackup.webframe.org
Problem creating iso for a USB stick
Hello everybody, I am trying to create a USB stick with Wheezy which would auto-install. I've managed to create the iso successfully following the instructions here: https://wiki.debian.org/DebianInstaller/Preseed/EditIso I've checked the resulting iso with vmware fusion on my mac and it works, i.e. it auto-installs Debian successfull. However, after writing it to a USB stick, it doesn't boot, and I don't know why. The command I used to create the iso is as follows: xorriso -as mkisofs -D -r -J -joliet-long -L -A Custom Install CD -b isolinux/isolinux.bin -c isolinux/boot.cat -iso-level 3 -no-emul-boot -partition_offset 16 -boot-load-size 4 -boot-info-table -o ../test.iso -isohybrid-mbr /usr/lib/syslinux/isohdpfx.bin ../cd Any ideas what I might be doing wrong? Thanks! S.
Re: Problem creating iso for a USB stick
On Thu 16 Jan 2014 at 16:02:00 +0100, Stelian Iancu wrote: I am trying to create a USB stick with Wheezy which would auto-install. I've managed to create the iso successfully following the instructions here: https://wiki.debian.org/DebianInstaller/Preseed/EditIso I've checked the resulting iso with vmware fusion on my mac and it works, i.e. it auto-installs Debian successfull. However, after writing it to a USB stick, it doesn't boot, and I don't know why. What is the output of fdisk -l your_ISO ? The command I used to create the iso is as follows: xorriso -as mkisofs -D -r -J -joliet-long -L -A Custom Install CD -b isolinux/isolinux.bin -c isolinux/boot.cat -iso-level 3 -no-emul-boot -partition_offset 16 -boot-load-size 4 -boot-info-table -o ../test.iso -isohybrid-mbr /usr/lib/syslinux/isohdpfx.bin ../cd Any ideas what I might be doing wrong? Not really (learning to use xorriso is on my to-do list) but the Debian images have the command used for their creation in the mkisofs file in .disk. You could also try the isohybrid command, which comes with the syslinux package. -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/16012014154903.4110dd4a0...@desktop.copernicus.demon.co.uk
Re: Problem creating iso for a USB stick
Hi, i am the developer of xorriso and always interested in learning about problems. However, after writing it to a USB stick, it doesn't boot, and I don't know why. What kind of machine do you use ? What kind of firmware does it have: PC-BIOS , UEFI, ... ? How far does it get with booting ? Does the USB stick make any difference when plugged in or is it just ignored ? How did you put the result onto USB stick ? I've checked the resulting iso with vmware fusion on my mac and it works, Did you submit it as emulated hard disk (rather than as CD-ROM) ? BIOS treats both device classes very different. (MBR vs. El Torito.) An USB stick would be treated by real BIOS as hard disk. xorriso -as mkisofs -D -r -J -joliet-long -L -A Custom Install CD -b isolinux/isolinux.bin -c isolinux/boot.cat -iso-level 3 -no-emul-boot -partition_offset 16 -boot-load-size 4 -boot-info-table -o ../test.iso -isohybrid-mbr /usr/lib/syslinux/isohdpfx.bin ../cd This looks ok as far as PC-BIOS booting from USB stick is concerned. It should work on i386 and amd64 processors. You may leave out -partition_offset 16 and check whether this changes anything with bootability. Some machines demand it, some hate it. Most work with both variants. (If you want to see Custom Install CD as name of the filesystem then you should use -V rather than -A.) Have a nice day :) Thomas -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/10482645742270145...@scdbackup.webframe.org
