On Sat 18 Feb 2023 at 09:06:11 -0700, Charles Curley wrote: > On Sat, 18 Feb 2023 18:55:03 +0700 > Max Nikulin <maniku...@gmail.com> wrote: > > > Due to the following message I am confused if it should work for > > Debian: > > > > Brian to debian-user. Re: problem with loading installer (hard disk > > method) Thu, 29 Dec 2022 17:42:59 +0000. > > https://lists.debian.org/msgid-search/?m=29122022172846.4fc3cfd29...@desktop.copernicus.org.uk > > > > > GRUB's loopback facility will not work with installer images. > > > They do not contain iso-scan. > > > > > > https://bugs.debian.org/618000 > > Date: 2011. > > > > https://bugs.debian.org/724931 > > Date 2013, last entry dated 2020. > > Neither one is marked as resolved. > > loopback.mod (not .ko) is available in grub for both Bullseye and > Bookworm. > > root@cdtest:~# find /boot/ -iname loop* > /boot/grub/i386-pc/loopback.mod > root@cdtest:~#
Irrelevant when it comes to what the kernel wants to do. > I can't find iso-scan anywhere except as a part of the package > dracut-live, so I'm not sure it's relevant here. I conjecture that > telling the kernel where to find the iso image bypasses any need for > iso-scan. (See the first email in #724931.) loop.ko is a kernel module. It is needed to mount an installer ISO to access its contents. But it is not present in the installer's initrd. lsinitramfs reveals that fact. The first email at #724931 has it right: > The module 'loop.ko' is not shipped with the Debian > testing netinstall ISO. It should reside in > /lib/modules/3.10-2-amd64/kernel/drivers/block/. > Because it is missing, it is impossible to mount ISO > images during the install and thus preventing > installation from ISO, if the module is not manually > imported. As for iso-scan: https://packages.debian.org/sid/iso-scan Joey Hess is a well-respected ex-Debian developer who was very influential in installer development. He says at https://lists.debian.org/debian-boot/2013/09/msg00097.html > iso-scan is part of the Debian installer[1]. > > However, it is only included in the hd-media initrd. > There is no reason to include it on the regular CD > initrd, because isohybrid allows mounting the USB > stick directly. (Not a loop-mount of an iso file > included in some disk, which the hd-media initrd > handles.) > > [1] I wrote it. Always nice to have my Debian work > cited as another reason Ubuntu is better than Debian! -- Brian.
