Re: Running Debian Installer without rebooting.
On Tue 21 Oct 2014 at 20:31:36 -0700, Rusi Mody wrote:
On Wednesday, October 22, 2014 1:20:03 AM UTC+5:30, Lee Winter wrote:
As a corollary question, are the debian installer isos bootable as is, or is
it mandatory that they be burned to media (CD/DVD/USB) and the media booted?
Here is a grub menu entry that can boot ubuntu from an iso image
menuentry 'Try ISO BOOT' {
set isofile=/Isos-Installers/ubuntu-14.04.1-desktop-amd64.iso
loopback loop (hd0,11)$isofile
linux (loop)/casper/vmlinuz.efi boot=casper iso-scan/filename=$isofile
noprompt noeject
initrd (loop)/casper/initrd.lz
}
Notes:
1. The image is ubuntu-14.04.1-desktop-amd64.iso
2. Its in /dev/sda11 In directory Isos-Installers
3. Only installers that use casper can do this (not sure it works for debian)
The Ubuntu image is a live image. The stanza requires alteration to work
with a Debian live image.
No amount of modification will allow an installation from a netinst
image or CD-1 to complete successfully.
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Re: Running Debian Installer without rebooting.
On Wednesday, October 22, 2014 3:50:05 PM UTC+5:30, Brian wrote:
On Tue 21 Oct 2014 at 20:31:36 -0700, Rusi Mody wrote:
On Wednesday, October 22, 2014 1:20:03 AM UTC+5:30, Lee Winter wrote:
As a corollary question, are the debian installer isos bootable as is, or
is
it mandatory that they be burned to media (CD/DVD/USB) and the media
booted?
Here is a grub menu entry that can boot ubuntu from an iso image
menuentry 'Try ISO BOOT' {
set isofile=/Isos-Installers/ubuntu-14.04.1-desktop-amd64.iso
loopback loop (hd0,11)$isofile
linux (loop)/casper/vmlinuz.efi boot=casper iso-scan/filename=$isofile
noprompt noeject
initrd (loop)/casper/initrd.lz
}
Notes:
1. The image is ubuntu-14.04.1-desktop-amd64.iso
2. Its in /dev/sda11 In directory Isos-Installers
3. Only installers that use casper can do this (not sure it works for
debian)
The Ubuntu image is a live image. The stanza requires alteration to work
with a Debian live image.
No amount of modification will allow an installation from a netinst
image or CD-1 to complete successfully.
If you say so :-)
I find it hard to believe though...
[BTW: With ubuntu booted as above I did notice one problem:
It crashes/hangs on the partitioning stage even if there's
no new partitioning to do.
]
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Re: Running Debian Installer without rebooting.
On Wed 22 Oct 2014 at 04:19:35 -0700, Rusi Mody wrote:
On Wednesday, October 22, 2014 3:50:05 PM UTC+5:30, Brian wrote:
No amount of modification will allow an installation from a netinst
image or CD-1 to complete successfully.
If you say so :-)
I do say so.
I find it hard to believe though...
In such situations it is best to try it, wouldn't you agree? I'll even
give you a grub stanza to adjust for your needs.
menuentry jessie-DI-b2-i386-netinst {
loopback loop (hd1,msdos1)/boot/isos/debian-jessie-DI-b2-i386-netinst.iso
linux (loop)/install.386/vmlinuz
initrd (loop)/install.386/initrd.gz
}
It would be nice (and might help the OP) if you reported what happens
and declared yourself a believer. :)
[BTW: With ubuntu booted as above I did notice one problem:
It crashes/hangs on the partitioning stage even if there's
no new partitioning to do.
]
That's one for Ubuntu support.
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Re: Running Debian Installer without rebooting.
On Wednesday, October 22, 2014 6:50:06 PM UTC+5:30, Brian wrote:
On Wed 22 Oct 2014 at 04:19:35 -0700, Rusi Mody wrote:
On Wednesday, October 22, 2014 3:50:05 PM UTC+5:30, Brian wrote:
No amount of modification will allow an installation from a netinst
image or CD-1 to complete successfully.
If you say so :-)
I do say so.
I find it hard to believe though...
In such situations it is best to try it, wouldn't you agree? I'll even
give you a grub stanza to adjust for your needs.
menuentry jessie-DI-b2-i386-netinst {
loopback loop (hd1,msdos1)/boot/isos/debian-jessie-DI-b2-i386-netinst.iso
linux (loop)/install.386/vmlinuz
initrd (loop)/install.386/initrd.gz
}
It would be nice (and might help the OP) if you reported what happens
and declared yourself a believer. :)
Assuming
1. you have grub-imageboot and syslinux-common packages installed --
[that will put memdisk into /boot]
2. The netinst iso is in images directory
3. sda7 is root
After that this stanza starts the debian installer alright
menuentry Bootable Netinst ISO Image: Debian {
insmod part_msdos
insmod ext2
set root='hd0,msdos7'
linux16 /boot/memdisk iso
initrd16 /boot/images/debian-7.5.0-amd64-netinst.iso
}
Does it complete??
No idea.
I dont have a free machine (or time) to try out
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Re: Running Debian Installer without rebooting.
On Wed 22 Oct 2014 at 07:00:29 -0700, Rusi Mody wrote:
On Wednesday, October 22, 2014 6:50:06 PM UTC+5:30, Brian wrote:
menuentry jessie-DI-b2-i386-netinst {
loopback loop (hd1,msdos1)/boot/isos/debian-jessie-DI-b2-i386-netinst.iso
linux (loop)/install.386/vmlinuz
initrd (loop)/install.386/initrd.gz
}
It would be nice (and might help the OP) if you reported what happens
and declared yourself a believer. :)
Assuming
1. you have grub-imageboot and syslinux-common packages installed --
[that will put memdisk into /boot]
2. The netinst iso is in images directory
3. sda7 is root
Thank you for the detail.
After that this stanza starts the debian installer alright
menuentry Bootable Netinst ISO Image: Debian {
insmod part_msdos
insmod ext2
set root='hd0,msdos7'
linux16 /boot/memdisk iso
initrd16 /boot/images/debian-7.5.0-amd64-netinst.iso
}
Does it complete??
No idea.
I dont have a free machine (or time) to try out
This is a different method from using grub's loopback. However, it will
still fail at the 'Detect and mount CD-ROM' stage and for the same
reason: the netinst image does not contain loop.ko.
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Re: Running Debian Installer without rebooting.
On 2014-10-22, Rusi Mody rustompm...@gmail.com wrote: Here is a grub menu entry that can boot ubuntu from an iso image Booting the debian installer from the hard disk: https://www.debian.org/releases/stable/i386/ch04s04.html.en -- 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/slrnm4fkdd.2q6.cu...@einstein.electron.org
Re: Running Debian Installer without rebooting.
On Wednesday, October 22, 2014 8:30:05 PM UTC+5:30, Brian wrote:
On Wed 22 Oct 2014 at 07:00:29 -0700, Rusi Mody wrote:
On Wednesday, October 22, 2014 6:50:06 PM UTC+5:30, Brian wrote:
menuentry jessie-DI-b2-i386-netinst {
loopback loop
(hd1,msdos1)/boot/isos/debian-jessie-DI-b2-i386-netinst.iso
linux (loop)/install.386/vmlinuz
initrd (loop)/install.386/initrd.gz
}
It would be nice (and might help the OP) if you reported what happens
and declared yourself a believer. :)
Assuming
1. you have grub-imageboot and syslinux-common packages installed --
[that will put memdisk into /boot]
2. The netinst iso is in images directory
3. sda7 is root
Thank you for the detail.
After that this stanza starts the debian installer alright
menuentry Bootable Netinst ISO Image: Debian {
insmod part_msdos
insmod ext2
set root='hd0,msdos7'
linux16 /boot/memdisk iso
initrd16 /boot/images/debian-7.5.0-amd64-netinst.iso
}
Does it complete??
No idea.
I dont have a free machine (or time) to try out
This is a different method from using grub's loopback. However, it will
still fail at the 'Detect and mount CD-ROM' stage and for the same
reason: the netinst image does not contain loop.ko.
Right. So it seems from
https://lists.debian.org/debian-boot/2013/09/msg00094.html
and your
https://lists.debian.org/debian-user/2013/12/msg01124.html
that debian installer cant loopmount whereas ubuntu can.
O well...
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Re: Running Debian Installer without rebooting.
On Wed 22 Oct 2014 at 15:47:57 +, Curt wrote: On 2014-10-22, Rusi Mody rustompm...@gmail.com wrote: Here is a grub menu entry that can boot ubuntu from an iso image Booting the debian installer from the hard disk: https://www.debian.org/releases/stable/i386/ch04s04.html.en That is quite a nifty method. It allows not only any Debian image to be booted and operate correctly but also (with a suitable grub stanza) images from many other distributions too. The 'hard disk' can usefully be a USB stick. The reason it works is that loop.ko and iso-scan are available in the kernel/initrd. -- 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/22102014175509.fc5551746...@desktop.copernicus.demon.co.uk
Re: Running Debian Installer without rebooting.
On Wed 22 Oct 2014 at 09:56:35 -0700, Rusi Mody wrote: On Wednesday, October 22, 2014 8:30:05 PM UTC+5:30, Brian wrote: This is a different method from using grub's loopback. However, it will still fail at the 'Detect and mount CD-ROM' stage and for the same reason: the netinst image does not contain loop.ko. Right. So it seems from https://lists.debian.org/debian-boot/2013/09/msg00094.html and your https://lists.debian.org/debian-user/2013/12/msg01124.html that debian installer cant loopmount whereas ubuntu can. O well... The Ubuntu and Debian live images are built in a different way from a netinst or CD-1 image. Basically, they have loop.ko and the ability to scan an ISO image. The netinst/CD-1 images don't need to have this facility. There is a patch available to do it but d-i doesn't have it yet. Personally, I'm content with the HD method and find it reliable and versatile. -- 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/22102014180442.8b9123065...@desktop.copernicus.demon.co.uk
Re: Running Debian Installer without rebooting.
On Mi, 22 oct 14, 15:55:03, Brian wrote: This is a different method from using grub's loopback. However, it will still fail at the 'Detect and mount CD-ROM' stage and for the same reason: the netinst image does not contain loop.ko. It should work with the mini.iso (the netboot image), because it contains only the installer and will download everything else over the network (assuming it is available, of course). Would also make a nice boot recovery option ;) Kind regards, Andrei -- http://wiki.debian.org/FAQsFromDebianUser Offtopic discussions among Debian users and developers: http://lists.alioth.debian.org/mailman/listinfo/d-community-offtopic http://nuvreauspam.ro/gpg-transition.txt signature.asc Description: Digital signature
Re: Running Debian Installer without rebooting.
On Wed 22 Oct 2014 at 22:16:16 +0300, Andrei POPESCU wrote: On Mi, 22 oct 14, 15:55:03, Brian wrote: This is a different method from using grub's loopback. However, it will still fail at the 'Detect and mount CD-ROM' stage and for the same reason: the netinst image does not contain loop.ko. It should work with the mini.iso (the netboot image), because it contains only the installer and will download everything else over the network (assuming it is available, of course). Would also make a nice boot recovery option ;) Thanks for reminding me of the mini.iso. I'm rather fond of it but haven't tried it for quite some time, I'll it give a go later, but I can see what you mean. Would you please explain the boot recovery option. -- 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/22102014204202.0a84f8731...@desktop.copernicus.demon.co.uk
Re: Running Debian Installer without rebooting.
On Mi, 22 oct 14, 20:47:47, Brian wrote: Would you please explain the boot recovery option. Boot the Debian installer in recovery mode, e.g. to rescue a broken system. Kind regards, Andrei -- http://wiki.debian.org/FAQsFromDebianUser Offtopic discussions among Debian users and developers: http://lists.alioth.debian.org/mailman/listinfo/d-community-offtopic http://nuvreauspam.ro/gpg-transition.txt signature.asc Description: Digital signature
Re: Running Debian Installer without rebooting.
On Wed 22 Oct 2014 at 22:51:39 +0300, Andrei POPESCU wrote: On Mi, 22 oct 14, 20:47:47, Brian wrote: Would you please explain the boot recovery option. Boot the Debian installer in recovery mode, e.g. to rescue a broken system. Amazing what one forgets. The mini.iso downloads *everything* so doesn't need to loopmount the ISO. As pointed out, its disadvantge is that it does require a network, but you might require that at some stage of a netinst install anyway. -- 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/20141022213944.gu23...@copernicus.demon.co.uk
Running Debian Installer without rebooting.
It appears to me that it should be possible to run the Debian Installer just as a program and a set of package files rather than as a bootable image containing both. So, given a bootable image in .ISO or .img format, how can the image be transformed into an executable program and associated package files that reside on a typical (HDD) file system? As a corollary question, are the debian installer isos bootable as is, or is it mandatory that they be burned to media (CD/DVD/USB) and the media booted? For example, several boot loaders allow a kind of chainload from their own boot sector to the boot sector of an ISO or img file. But the booted image has to be able to find itself in order to continue the process. Can debian install images find themselves? Thanks for any hints about this topic or where I might look for more information. Lee Winter Nashua, New Hampshire United States of America
Re: Running Debian Installer without rebooting.
On Ma, 21 oct 14, 15:46:44, Lee Winter wrote: It appears to me that it should be possible to run the Debian Installer just as a program and a set of package files rather than as a bootable image containing both. So, given a bootable image in .ISO or .img format, how can the image be transformed into an executable program and associated package files that reside on a typical (HDD) file system? It seems like you're looking for debootstrap, but it might be better to explain what you're trying to achieve. As a corollary question, are the debian installer isos bootable as is, or is it mandatory that they be burned to media (CD/DVD/USB) and the media booted? For example, several boot loaders allow a kind of chainload from their own boot sector to the boot sector of an ISO or img file. But the booted image has to be able to find itself in order to continue the process. Can debian install images find themselves? I think this should work. Kind regards, Andrei -- http://wiki.debian.org/FAQsFromDebianUser Offtopic discussions among Debian users and developers: http://lists.alioth.debian.org/mailman/listinfo/d-community-offtopic http://nuvreauspam.ro/gpg-transition.txt signature.asc Description: Digital signature
Re: Running Debian Installer without rebooting.
On Tue 21 Oct 2014 at 23:14:18 +0300, Andrei POPESCU wrote: On Ma, 21 oct 14, 15:46:44, Lee Winter wrote: As a corollary question, are the debian installer isos bootable as is, or is it mandatory that they be burned to media (CD/DVD/USB) and the media booted? For example, several boot loaders allow a kind of chainload from their own boot sector to the boot sector of an ISO or img file. But the booted image has to be able to find itself in order to continue the process. Can debian install images find themselves? I think this should work. I'm very unsure that what the OP wants is possible, but then I'm not entirely sure what he does want, It would clarify things if a boot loader was specified and the method used to chainload with it was described. -- 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/21102014225936.01adb4652...@desktop.copernicus.demon.co.uk
Re: Running Debian Installer without rebooting.
On Wednesday, October 22, 2014 1:20:03 AM UTC+5:30, Lee Winter wrote:
As a corollary question, are the debian installer isos bootable as is, or is
it mandatory that they be burned to media (CD/DVD/USB) and the media booted?
Here is a grub menu entry that can boot ubuntu from an iso image
menuentry 'Try ISO BOOT' {
set isofile=/Isos-Installers/ubuntu-14.04.1-desktop-amd64.iso
loopback loop (hd0,11)$isofile
linux (loop)/casper/vmlinuz.efi boot=casper iso-scan/filename=$isofile noprompt
noeject
initrd (loop)/casper/initrd.lz
}
Notes:
1. The image is ubuntu-14.04.1-desktop-amd64.iso
2. Its in /dev/sda11 In directory Isos-Installers
3. Only installers that use casper can do this (not sure it works for debian)
4. This can also be done from a grub-installed USB; You'll probably need to add
insmod uhci
insmod ahci
insmod iso9660
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