Re: Install on hp-pavilion-g6-2100 stops at 98%

From	Luis Speciale <lspeciale@gmail.com>
Newsgroups	linux.debian.user
Subject	Re: Install on hp-pavilion-g6-2100 stops at 98%
Date	2017-09-04 20:20 +0200
Message-ID	<um48x-qB-5@gated-at.bofh.it> (permalink)
References	<um2T8-7VN-21@gated-at.bofh.it> <um3Pb-58-9@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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Le 04/09/2017 à 19:56, Thomas Schmitt a écrit :
> Hi,
> 
> i wrote:
>>> This would be a preparation for a method that works by unpacking.
> 
> Luis Speciale wrote:
>> ?
> 
> There are two ways to bring a bootable ISO onto a USB stick:
> 
> - The old way is to create a partition with a filesystem (FAT32 is not
>    the best choice because it has so poor filenames),
>    to copy the files out of the ISO into the created filesystem,
>    and to install a boot loader which starts the same programs as the boot
>    loader in the ISO would do if the ISO gets booted from a DVD.
>    This needs knowlege about how the software in the ISO works. So you
>    normally find instructions for a particular GNU/Linux distro like
>    Debian, Ubuntu, Fedora, OpenSuSE, Arch, Gentoo, ...
> 
> - The new way needs a hybrid ISO image with a Master Boot Record and a
>    partition table with EFI system partition. These two structures get used
>    by PC BIOS or EFI, respectively, when they encounter the ISO on a hard
>    disk or USB stick.
>    To become recognizable by the firmware, the MBR has to sit at block 0
>    of the disk or USB stick. It also hosts the partition table or the
>    indication that there is a GUID partition table (GPT). So both firmwares
>    demand that the ISO image copy begins at block 0.
>    Thus the ISO needs to be copied onto the overall disk device file,
>    not onto a disk partition device file, and especially not into the
>    directory where some filesystem of the USB stick is mounted.
>    No filesystem of the USB stick should be mounted when it gets overwritten,
>    because afterwards its old data are likely to be gone.
> 
> 
>>> I expect that now your self-made FAT32 is gone from the USB stick,
>>> because the partition table was overwritten by the ISO.
>>> Nevertheless, there is again a FAT filesystem, which contains initial EFI
>>> boot equipment of the ISO.
> 
>> ??
> 
> By using the second way, you overwrote the MBR and partition table of the
> USB stick. So now it bears the MBR and partition table of the ISO.
> The partition table of the ISO contains this
> 
>    $ /sbin/fdisk -l firmware-9.1.0-amd64-netinst.iso
>    
>    Disk firmware-9.1.0-amd64-netinst.iso: 325 MiB, 340787200 bytes, 665600 sectors
>    Units: sectors of 1 * 512 = 512 bytes
>    Sector size (logical/physical): 512 bytes / 512 bytes
>    I/O size (minimum/optimal): 512 bytes / 512 bytes
>    Disklabel type: dos
>    Disk identifier: 0x7db1c45b
> 
>    Device                            Boot Start    End Sectors  Size Id Type
>    firmware-9.1.0-amd64-netinst.iso1 *        0 665599  665600  325M  0 Empty
>    firmware-9.1.0-amd64-netinst.iso2       3984   4815     832  416K ef EFI (FAT-12
> 
> Partition 1 can be used to mount the ISO. Its type 0 = "Empty" is
> a necessity of our crammed hybrid ISO. We need to please EFI firmware.
> 
> As you can see, partition 2 is a FAT12 of type 0xef = "EFI". Let's have a
> look into it:
> 
>    $ sudo mount -o loop firmware-9.1.0-amd64-netinst.iso /mnt/iso
>    mount: /dev/loop0 is write-protected, mounting read-only
> 
> Being involved expert, i know that /boot/grub/efi.img is the ISO filename
> of the data file which is marked by partition 2:
> 
>    $ sudo mount -o loop /mnt/iso/boot/grub/efi.img /mnt/fat
> 
> (There are ways to find out the name or to mount it by its partition info.)
> 
> Now i can list the files in the FAT filesystem
> 
>    $ find /mnt/fat
>    /mnt/fat
>    /mnt/fat/efi
>    /mnt/fat/efi/boot
>    /mnt/fat/efi/boot/bootx64.efi
> 
> So the FAT12 filesystem contains just the single data file which EFI will
> look for on a amd64 machine, normally known by its DOS name:
>    \EFI\BOOT\BOOTX64.EFI
> 
> This file was made by program grub-mkimage. Its only purpose is to find
> the device on which the ISO is presented and to load and start the GRUB2
> configuration in the ISO directory /boot. At its end one can see these
> GRUB2 configuration commands as human readable text:
>    search --file --set=root /.disk/info
>    set prefix=($root)/boot/grub
>    source $prefix/x86_64-efi/grub.cfg
>    (memdisk)/boot/grub
> The existence of file /.disk/info is considered a unique property of the
> Debian ISO (Steve: Is this really good enough ?). So the first filesystem
> with that file gets used as source of further GRUB brain.
> The starting point of that brain is file
>    /mnt/iso/boot/grub/x86_64-efi/grub.cfg
> which loads
>    /mnt/iso/boot/grub/grub.cfg
> In there you will find texts which you also can see in the first menu
> of the booting Debian ISO:
>    menuentry --hotkey=g 'Graphical install' {
>    menuentry --hotkey=i 'Install' {
>    submenu --hotkey=a 'Advanced options ...' {
>    menuentry --hotkey=s 'Install with speech synthesis' {
> 
> Let's revoke "sudo mount" before we go on:
> 
>    $ sudo umount /mnt/fat
>    $ sudo umount /mnt/iso
> 
> 
>> I forgot to tell that I omited this jessie part. I only did
>> apt-get update
>> apt-get install firmware-realtek
>> apt-get install firmware-linux-nonfree
> 
> First:
> Very very good you skipped the reference to the old-stable system.
> Obviously the non-free-firmware ISO already is prepared to use the
> non-free repository of Debian 9.
> 
> Second:
> I understand you got no good graphics but were able to enter shell
> commands like apt-get.
> Right ?
> (Your previous reports stated that installation hung at some late stage.)
> 
> 
>> I was near (a couple of times) of giving up.
> 
> That's a good sign. If it does not offer resistence then it s not worth.
> 
> As software developer i am always mistrusting if a new feature does not
> show buggy behavior on the first test. Then it hides something evil ...
> 
> 
> Have a nice day :)
> 
> Thomas

I'm beginning to believe that you overestimate my skills. I'm not 
complaining, but I need some time to read all this.
Anyway, I must admit that I don't have a solid theoretical background, 
I'm mostly an stochastic guy. I mean that if it doesn't explodes, I keep 
advancing.
I insist, I can't find the words to thank you enough, all of you.

Luis

Thread

Install on hp-pavilion-g6-2100 stops at 98% Luis Speciale <lspeciale@gmail.com> - 2017-09-02 18:30 +0200
  Re: Install on hp-pavilion-g6-2100 stops at 98% Brian <ad44@cityscape.co.uk> - 2017-09-02 19:10 +0200
    Re: Install on hp-pavilion-g6-2100 stops at 98% Luis Speciale <lspeciale@gmail.com> - 2017-09-02 19:30 +0200
      Re: Install on hp-pavilion-g6-2100 stops at 98% Brian <ad44@cityscape.co.uk> - 2017-09-02 20:00 +0200
        Re: Install on hp-pavilion-g6-2100 stops at 98% Luis Speciale <lspeciale@gmail.com> - 2017-09-02 21:10 +0200
        Re: Install on hp-pavilion-g6-2100 stops at 98% Luis Speciale <lspeciale@gmail.com> - 2017-09-03 00:10 +0200
          Re: Install on hp-pavilion-g6-2100 stops at 98% Brian <ad44@cityscape.co.uk> - 2017-09-03 01:20 +0200
            Re: Install on hp-pavilion-g6-2100 stops at 98% Luis Speciale <lspeciale@gmail.com> - 2017-09-03 02:30 +0200
              Re: Install on hp-pavilion-g6-2100 stops at 98% Brian <ad44@cityscape.co.uk> - 2017-09-03 13:40 +0200
                Re: Install on hp-pavilion-g6-2100 stops at 98% Luis Speciale <lspeciale@gmail.com> - 2017-09-03 14:00 +0200
                Re: Install on hp-pavilion-g6-2100 stops at 98% Brian <ad44@cityscape.co.uk> - 2017-09-03 14:20 +0200
            Re: Install on hp-pavilion-g6-2100 stops at 98% Curt <curty@free.fr> - 2017-09-03 13:50 +0200
              Re: Install on hp-pavilion-g6-2100 stops at 98% Brian <ad44@cityscape.co.uk> - 2017-09-03 14:30 +0200
          Re: Install on hp-pavilion-g6-2100 stops at 98% Dominique Dumont <dod38fr@gmail.com> - 2017-09-03 10:30 +0200
            Re: Install on hp-pavilion-g6-2100 stops at 98% Luis Speciale <lspeciale@gmail.com> - 2017-09-03 11:10 +0200
              Re: Install on hp-pavilion-g6-2100 stops at 98% Dominique Dumont <dod38fr@gmail.com> - 2017-09-03 11:40 +0200
              Re: Install on hp-pavilion-g6-2100 stops at 98% Ben Caradoc-Davies <ben@transient.nz> - 2017-09-03 23:50 +0200
                Re: Install on hp-pavilion-g6-2100 stops at 98% (SOLVED) Luis Speciale <lspeciale@gmail.com> - 2017-09-04 13:50 +0200
            Re: Install on hp-pavilion-g6-2100 stops at 98% "Thomas Schmitt" <scdbackup@gmx.net> - 2017-09-03 12:00 +0200
              Re: Install on hp-pavilion-g6-2100 stops at 98% Luis Speciale <lspeciale@gmail.com> - 2017-09-03 12:30 +0200
                Re: Install on hp-pavilion-g6-2100 stops at 98% "Thomas Schmitt" <scdbackup@gmx.net> - 2017-09-03 13:20 +0200
                Re: Install on hp-pavilion-g6-2100 stops at 98% Luis Speciale <lspeciale@gmail.com> - 2017-09-03 13:30 +0200
          Re: Install on hp-pavilion-g6-2100 stops at 98% Pascal Hambourg <pascal@plouf.fr.eu.org> - 2017-09-03 12:50 +0200
            Re: Install on hp-pavilion-g6-2100 stops at 98% Luis Speciale <lspeciale@gmail.com> - 2017-09-03 13:00 +0200
              Re: Install on hp-pavilion-g6-2100 stops at 98% Pascal Hambourg <pascal@plouf.fr.eu.org> - 2017-09-03 13:30 +0200
                Re: Install on hp-pavilion-g6-2100 stops at 98% Luis Speciale <lspeciale@gmail.com> - 2017-09-03 13:40 +0200
                Re: Install on hp-pavilion-g6-2100 stops at 98% Pascal Hambourg <pascal@plouf.fr.eu.org> - 2017-09-03 14:10 +0200
                Re: Install on hp-pavilion-g6-2100 stops at 98% Luis Speciale <lspeciale@gmail.com> - 2017-09-03 14:30 +0200
                Re: Install on hp-pavilion-g6-2100 stops at 98% Pascal Hambourg <pascal@plouf.fr.eu.org> - 2017-09-03 14:50 +0200
                Re: Install on hp-pavilion-g6-2100 stops at 98% Luis Speciale <lspeciale@gmail.com> - 2017-09-03 15:10 +0200
                Re: Install on hp-pavilion-g6-2100 stops at 98% "Thomas Schmitt" <scdbackup@gmx.net> - 2017-09-03 15:20 +0200
                Re: Install on hp-pavilion-g6-2100 stops at 98% Luis Speciale <lspeciale@gmail.com> - 2017-09-03 15:30 +0200
                Re: Install on hp-pavilion-g6-2100 stops at 98% "Thomas Schmitt" <scdbackup@gmx.net> - 2017-09-03 15:40 +0200
                Re: Install on hp-pavilion-g6-2100 stops at 98% Luis Speciale <lspeciale@gmail.com> - 2017-09-03 18:50 +0200
                Re: Install on hp-pavilion-g6-2100 stops at 98% "Thomas Schmitt" <scdbackup@gmx.net> - 2017-09-03 19:50 +0200
                Re: Install on hp-pavilion-g6-2100 stops at 98% Luis Speciale <lspeciale@gmail.com> - 2017-09-04 13:30 +0200
                Re: Install on hp-pavilion-g6-2100 stops at 98% "Thomas Schmitt" <scdbackup@gmx.net> - 2017-09-04 14:10 +0200
                Re: Install on hp-pavilion-g6-2100 stops at 98% Cindy-Sue Causey <butterflybytes@gmail.com> - 2017-09-04 18:00 +0200
                Re: Install on hp-pavilion-g6-2100 stops at 98% Gene Heskett <gheskett@shentel.net> - 2017-09-04 18:20 +0200
                Re: Install on hp-pavilion-g6-2100 stops at 98% "Thomas Schmitt" <scdbackup@gmx.net> - 2017-09-04 18:30 +0200
                Re: Install on hp-pavilion-g6-2100 stops at 98% Luis Speciale <lspeciale@gmail.com> - 2017-09-04 19:10 +0200
                Re: Install on hp-pavilion-g6-2100 stops at 98% Luis Speciale <lspeciale@gmail.com> - 2017-09-04 19:00 +0200
                Re: Install on hp-pavilion-g6-2100 stops at 98% "Thomas Schmitt" <scdbackup@gmx.net> - 2017-09-04 20:00 +0200
                Re: Install on hp-pavilion-g6-2100 stops at 98% Luis Speciale <lspeciale@gmail.com> - 2017-09-04 20:20 +0200
                Re: Install on hp-pavilion-g6-2100 stops at 98% "Thomas Schmitt" <scdbackup@gmx.net> - 2017-09-04 20:50 +0200
                Re: Install on hp-pavilion-g6-2100 stops at 98% Brian <ad44@cityscape.co.uk> - 2017-09-04 21:10 +0200
                Re: Install on hp-pavilion-g6-2100 stops at 98% "Thomas Schmitt" <scdbackup@gmx.net> - 2017-09-04 21:30 +0200
                Re: Install on hp-pavilion-g6-2100 stops at 98% Brian <ad44@cityscape.co.uk> - 2017-09-04 22:00 +0200
                Re: Install on hp-pavilion-g6-2100 stops at 98% "Thomas Schmitt" <scdbackup@gmx.net> - 2017-09-04 22:30 +0200
                Re: Install on hp-pavilion-g6-2100 stops at 98% Luis Speciale <lspeciale@gmail.com> - 2017-09-04 23:10 +0200
                Re: Install on hp-pavilion-g6-2100 stops at 98% Pascal Hambourg <pascal@plouf.fr.eu.org> - 2017-09-03 15:40 +0200
                Re: Install on hp-pavilion-g6-2100 stops at 98% "Thomas Schmitt" <scdbackup@gmx.net> - 2017-09-03 13:40 +0200
      Re: Install on hp-pavilion-g6-2100 stops at 98% Mario Castelán Castro <marioxcc.MT@yandex.com> - 2017-09-02 21:00 +0200
        Re: Install on hp-pavilion-g6-2100 stops at 98% Luis Speciale <lspeciale@gmail.com> - 2017-09-03 10:30 +0200

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