Re: How to change installer image?
Hi, mrr wrote: > Please skip reading my message below! Too late. I already did. :)) It is not that bad. E.g. the question "When you look inside the usb key, is everything alright?" does hit the point. You'd just had to advise a run of fdisk -l as additional means of looking. The lack of a partition table would have shown that it is not alright. The proposal "you could try to load your system in a virtual machine (virtualbox, vmware ...) so you could follow step by step the boot process" would be a great thing if this is possible. (I'm way behind with VM equipment and experience.) A decisive hint would have been to use the ISO as hard disk (e.g. qemu -hdb) and not as optical device (e.g. qemu -cdrom). 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: https://lists.debian.org/1343538672358614...@scdbackup.webframe.org
Re: How to change installer image?
On 20/01/2015 10:00, Thomas Schmitt wrote: Hi, i forgot to point to http://www.syslinux.org/wiki/index.php/Isohybrid for an overview of this SYSLINUX feature. You do not need the mentioned post processing programs if xorriso already added an isohybrid MBR to the ISO. But you may beef up your genisoimage ISO if you use the same SYSLINUX version as debian-cd does. ( strings /mnt/iso/isolinux/isolinux.bin | grep ISOLINUX says: ISOLINUX 4.05 20121210 So i guess it is SYSLINUX 4.05 which you would to have to install. ) Have a nice day :) Thomas Well Thomas, I'll keep your previous message for future reference, nicely done! And Please skip reading my message below! -- mrr -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: https://lists.debian.org/54be406e$0$2317$426a7...@news.free.fr
Re: How to change installer image?
Hi, i forgot to point to http://www.syslinux.org/wiki/index.php/Isohybrid for an overview of this SYSLINUX feature. You do not need the mentioned post processing programs if xorriso already added an isohybrid MBR to the ISO. But you may beef up your genisoimage ISO if you use the same SYSLINUX version as debian-cd does. ( strings /mnt/iso/isolinux/isolinux.bin | grep ISOLINUX says: ISOLINUX 4.05 20121210 So i guess it is SYSLINUX 4.05 which you would to have to install. ) 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: https://lists.debian.org/12165538655767513...@scdbackup.webframe.org
Re: How to change installer image?
Hello, Outstanding! Thank you, both Steve and Thomas! Based on Steve's hint I had it mostly right, but the isobybrid business was beyond my capabilities (and would have come to bite me once actually in front of the machine to be installed). I'll report back once I got a chance to try the new image ... Joh Thomas Schmitt wrote: > Hi, > > Steve McIntyre wrote: >> You'll also need to use xorriso rather than genisoimage. > > Thank you for flying xorriso. :) > > >> If you look in the >> file .disk/mkisofs on the original CD, you'll see the exact command >> that was used to make the original image, > > .disk/mkisofs is one of my favorites. So i can see what Steve > does with my program. > One needs some background knowledge, though, to derive the options > for a new run: > > The option -isohybrid-mbr, which is essential for BIOS USB stick, > needs an MBR input file, which has to stem from the same SYSLINUX > version as isolinux/isolinux.bin in the ISO: > > -isohybrid-mbr syslinux/usr/lib/syslinux/isohdpfx.bin > > The first 512 bytes of the original isohybrid ISO image > are a harmlessly modified copy of the original input file. > So one may retrieve the new isohybrid MBR template by: > > dd if=debian-7.8.0-i386-CD-1.iso bs=512 count=1 of=/tmp/isohdpfx.bin > > and use it in the xorriso run as > > -isohybrid-mbr /tmp/isohdpfx.bin > > > Further one may leave out the Jigdo producing options: > > -checksum_algorithm_iso md5,sha1,sha256,sha512 > ... >-jigdo-jigdo >/org/cdbuilder.debian.org/dst/deb-cd/out/2amd64/debian-7.7.0-amd64- NETINST-1.jigdo >-jigdo-template >/org/cdbuilder.debian.org/dst/deb-cd/out/2amd64/debian-7.7.0-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*' > ... > > > So i propose to do for an i386 ISO: > > dd if=debian-7.8.0-i386-CD-1.iso bs=512 count=1 of=/tmp/isohdpfx.bin > > xorriso -as mkisofs \ > -r \ > -V 'Debian 7.8.0 i386 1' \ > -o debian-7.8.0-i386-CD-1-mod.iso \ > -J \ > -isohybrid-mbr /tmp/isohdpfx.bin \ > -partition_offset 16 \ > -joliet-long \ > -cache-inodes \ > -b isolinux/isolinux.bin \ > -c isolinux/boot.cat \ > -no-emul-boot \ > -boot-load-size 4 \ > -boot-info-table \ > ./debian-7.8.0-i386-CD-1-mod/ > >rm /tmp/isohdpfx.bin > > The amd64 ISOs get some extra options for EFI after -boot-info-table: > > -eltorito-alt-boot \ > -e boot/grub/efi.img \ > -no-emul-boot \ > -isohybrid-gpt-basdat \ > -isohybrid-apm-hfsplus \ > > The last option -isohybrid-apm-hfsplus is actually useless here, > because no HFS+ flesystem tree gets produced. > > > If you get xorriso-1.3.8 from http://www.gnu.org/software/xorriso > then you can inspect the result's boot equipment: > > xorriso -indev debian-7.8.0-i386-CD-1-mod.iso \ > -report_el_torito plain \ > -report_system_area plain > > My test (with debian-7.3.0-i386-netinst.iso) yields: > > El Torito catalog : 1658 1 > El Torito cat path : /isolinux/boot.cat > El Torito images : N Pltf B Emul Ld_seg Hdpt Ldsiz > LBA > El Torito boot img : 1 BIOS y none 0x 0x00 4 > 1659 > El Torito img path : 1 /isolinux/isolinux.bin > El Torito img opts : 1 boot-info-table isohybrid-suitable > System area options: 0x0102 > System area summary: MBR isohybrid cyl-align-on > ISO image size/512 : 571392 > Partition offset : 16 > MBR heads per cyl : 64 > MBR secs per head : 32 > MBR partition table: N Status TypeStart Blocks > MBR partition : 1 0x80 0x17 64 571328 > > Else have a look at the MBR partition table by fdisk : > > $ /sbin/fdisk -lu debian-7.8.0-i386-CD-1-mod.iso > ... > 64 heads, 32 sectors/track, 0 cylinders, total 0 sectors > Units = sectors of 1 * 512 = 512 bytes > > Device Boot Start End Blocks > Id System > debian-7.8.0-i386-CD-1-mod.iso1 * 64 571391 285664 > 17 Hidden HPFS/NTFS > > > 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: https://lists.debian.org/m9l2cm$ngd$1...@ger.gmane.org
Re: How to change installer image?
Hi, Steve McIntyre wrote: > You'll also need to use xorriso rather than genisoimage. Thank you for flying xorriso. :) > If you look in the > file .disk/mkisofs on the original CD, you'll see the exact command > that was used to make the original image, .disk/mkisofs is one of my favorites. So i can see what Steve does with my program. One needs some background knowledge, though, to derive the options for a new run: The option -isohybrid-mbr, which is essential for BIOS USB stick, needs an MBR input file, which has to stem from the same SYSLINUX version as isolinux/isolinux.bin in the ISO: -isohybrid-mbr syslinux/usr/lib/syslinux/isohdpfx.bin The first 512 bytes of the original isohybrid ISO image are a harmlessly modified copy of the original input file. So one may retrieve the new isohybrid MBR template by: dd if=debian-7.8.0-i386-CD-1.iso bs=512 count=1 of=/tmp/isohdpfx.bin and use it in the xorriso run as -isohybrid-mbr /tmp/isohdpfx.bin Further one may leave out the Jigdo producing options: -checksum_algorithm_iso md5,sha1,sha256,sha512 ... -jigdo-jigdo /org/cdbuilder.debian.org/dst/deb-cd/out/2amd64/debian-7.7.0-amd64-NETINST-1.jigdo -jigdo-template /org/cdbuilder.debian.org/dst/deb-cd/out/2amd64/debian-7.7.0-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*' ... So i propose to do for an i386 ISO: dd if=debian-7.8.0-i386-CD-1.iso bs=512 count=1 of=/tmp/isohdpfx.bin xorriso -as mkisofs \ -r \ -V 'Debian 7.8.0 i386 1' \ -o debian-7.8.0-i386-CD-1-mod.iso \ -J \ -isohybrid-mbr /tmp/isohdpfx.bin \ -partition_offset 16 \ -joliet-long \ -cache-inodes \ -b isolinux/isolinux.bin \ -c isolinux/boot.cat \ -no-emul-boot \ -boot-load-size 4 \ -boot-info-table \ ./debian-7.8.0-i386-CD-1-mod/ rm /tmp/isohdpfx.bin The amd64 ISOs get some extra options for EFI after -boot-info-table: -eltorito-alt-boot \ -e boot/grub/efi.img \ -no-emul-boot \ -isohybrid-gpt-basdat \ -isohybrid-apm-hfsplus \ The last option -isohybrid-apm-hfsplus is actually useless here, because no HFS+ flesystem tree gets produced. If you get xorriso-1.3.8 from http://www.gnu.org/software/xorriso then you can inspect the result's boot equipment: xorriso -indev debian-7.8.0-i386-CD-1-mod.iso \ -report_el_torito plain \ -report_system_area plain My test (with debian-7.3.0-i386-netinst.iso) yields: El Torito catalog : 1658 1 El Torito cat path : /isolinux/boot.cat El Torito images : N Pltf B Emul Ld_seg Hdpt Ldsiz LBA El Torito boot img : 1 BIOS y none 0x 0x00 41659 El Torito img path : 1 /isolinux/isolinux.bin El Torito img opts : 1 boot-info-table isohybrid-suitable System area options: 0x0102 System area summary: MBR isohybrid cyl-align-on ISO image size/512 : 571392 Partition offset : 16 MBR heads per cyl : 64 MBR secs per head : 32 MBR partition table: N Status TypeStart Blocks MBR partition : 1 0x80 0x17 64 571328 Else have a look at the MBR partition table by fdisk : $ /sbin/fdisk -lu debian-7.8.0-i386-CD-1-mod.iso ... 64 heads, 32 sectors/track, 0 cylinders, total 0 sectors Units = sectors of 1 * 512 = 512 bytes Device Boot Start End Blocks Id System debian-7.8.0-i386-CD-1-mod.iso1 * 64 571391 285664 17 Hidden HPFS/NTFS 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: https://lists.debian.org/23718538649569997...@scdbackup.webframe.org
Re: How to change installer image?
On 19/01/2015 20:30, Johannes Graumann wrote: 3) nano /tmp/debian-7.8.0-i386-CD-1-mod/isolinux/txt.cfg ... I'm not sure about the mean of this step, is it to change the text printed at early boot time (a kind of menu?) ? Anyway, make sure you don't have an error here. 4) genisoimage -o debian-7.8.0-i386-CD-1-mod.iso -r -J -no-emul-boot -boot- load-size 4 -boot-info-table -b isolinux/isolinux.bin -c isolinux/boot.cat ./debian-7.8.0-i386-CD-1-mod/ When you look inside the usb key, is everything alright? I mean do you have all files and folder in root directory? Because I may have issued a slightly modified command line i.e.: genisoimage -o debian-7.8.0-i386-CD-1-mod.iso -r -J -no-emul-boot -boot- load-size 4 -boot-info-table -b isolinux/isolinux.bin -c isolinux/boot.cat ./debian-7.8.0-i386-CD-1-mod/* 5) dd if=debian-7.8.0-i386-CD-1-mod.iso of=/dev/ bs=4M; sync Contrary to the original image, the resulting usb stick is NOT recognized as bootable ... What am I doing wrong? Thank you for your time. Sincerely, Joh And last, I just had a weird idea (or not?) , you could try to load your system in a virtual machine (virtualbox, vmware ...) so you could follow step by step the boot process (from the outside I would say!). -- mrr -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: https://lists.debian.org/54bda323$0$12774$426a7...@news.free.fr
Re: How to change installer image?
johannes_graum...@web.de wrote: >Hello, > >To fix some configurations needed to install via a serial connection, I >would like to edit txt.cfg in isolinux of the stable installation CD. >Following https://wiki.debian.org/DebianInstaller/Modify/CD I try: >1) mkdir /tmp/debian-7.8.0-i386-CD-1-mod >2) bsdtar -C /tmp/debian-7.8.0-i386-CD-1-mod -xf debian-7.8.0-i386-CD-1.iso >3) nano /tmp/debian-7.8.0-i386-CD-1-mod/isolinux/txt.cfg ... >4) genisoimage -o debian-7.8.0-i386-CD-1-mod.iso -r -J -no-emul-boot -boot- >load-size 4 -boot-info-table -b isolinux/isolinux.bin -c isolinux/boot.cat >./debian-7.8.0-i386-CD-1-mod/ >5) dd if=debian-7.8.0-i386-CD-1-mod.iso of=/dev/ bs=4M; sync > >Contrary to the original image, the resulting usb stick is NOT recognized as >bootable ... > >What am I doing wrong? Hi, What you're missing is the extra commands needed to add isohybrid options. I guess that wiki page is out of date. If you look in the file .disk/mkisofs on the original CD, you'll see the exact command that was used to make the original image, for reference in exactly this type of situation. You'll also need to use xorriso rather than genisoimage. Hope that helps... -- Steve McIntyre, Cambridge, UK.st...@einval.com "...In the UNIX world, people tend to interpret `non-technical user' as meaning someone who's only ever written one device driver." -- Daniel Pead -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: https://lists.debian.org/e1ydmxk-0007t6...@mail.einval.com
How to change installer image?
Hello, To fix some configurations needed to install via a serial connection, I would like to edit txt.cfg in isolinux of the stable installation CD. Following https://wiki.debian.org/DebianInstaller/Modify/CD I try: 1) mkdir /tmp/debian-7.8.0-i386-CD-1-mod 2) bsdtar -C /tmp/debian-7.8.0-i386-CD-1-mod -xf debian-7.8.0-i386-CD-1.iso 3) nano /tmp/debian-7.8.0-i386-CD-1-mod/isolinux/txt.cfg ... 4) genisoimage -o debian-7.8.0-i386-CD-1-mod.iso -r -J -no-emul-boot -boot- load-size 4 -boot-info-table -b isolinux/isolinux.bin -c isolinux/boot.cat ./debian-7.8.0-i386-CD-1-mod/ 5) dd if=debian-7.8.0-i386-CD-1-mod.iso of=/dev/ bs=4M; sync Contrary to the original image, the resulting usb stick is NOT recognized as bootable ... What am I doing wrong? Thank you for your time. Sincerely, Joh -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: https://lists.debian.org/m9jlda$83e$1...@ger.gmane.org
