Booting Rescue ISO

seppim · Dec 20, 2020, 8:40 AM

Hello,

I’m new with FOG server and ask myself if I can boot a kind of own Rescue ISO file?

So far as I understood FOG is for cloning images … but can I boot without changes also a live Rescue ISO?

Thank you!

Sebastian Roth · Dec 20, 2020, 12:31 PM

@seppim This should answer your question: https://forums.fogproject.org/topic/10944/using-fog-to-pxe-boot-into-your-favorite-installer-images

seppim · Dec 20, 2020, 12:54 PM

@sebastian-roth wow, great. Thank you!

seppim · Dec 20, 2020, 1:20 PM

@sebastian-roth I see now, that the 5.5.2 ist very out dating.

Current is 7.01

Did you know which file and arguments I need for this?
cp /mnt/loop/isolinux/{rescue64,initram.igz} /tftpboot/os/RescueCd/5.2.2/

Both are in the 7.02 iso not available. Content of the isolinux:
-r–r–r-- 1 root root 2048 Dez 20 13:10 boot.cat
-rw-r–r-- 1 root root 432 Dez 20 13:10 isohdpfx.bin
-rw-r–r-- 1 root root 38912 Dez 20 13:10 isolinux.bin
-rw-r–r-- 1 root root 137 Dez 20 13:10 isolinux.cfg
-rw-r–r-- 1 root root 119668 Dez 20 13:10 ldlinux.c32

Thank you!

george1421 · Dec 20, 2020, 1:32 PM

@seppim said in Booting Rescue ISO:

isolinux.cfg

Your kernel parameters will most likely be found in this file.

seppim · Dec 25, 2020, 1:57 AM

@george1421 Hello,

the content of the file is:

PATH /sysresccd/boot/syslinux/
DEFAULT loadconfig

LABEL loadconfig
  CONFIG /sysresccd/boot/syslinux/sysresccd.cfg
  APPEND /sysresccd/

Content /sysresccd/boot/syslinux/sysresccd.cfg:

DEFAULT select

LABEL select
COM32 boot/syslinux/whichsys.c32
APPEND -pxe- pxe -sys- sys -iso- sys

LABEL pxe
CONFIG boot/syslinux/sysresccd_pxe.cfg

LABEL sys
CONFIG boot/syslinux/sysresccd_sys.cfg

Content sysresccd_pxe.cfg:

DEFAULT select

LABEL select
COM32 boot/syslinux/whichsys.c32
APPEND -pxe- pxe -sys- sys -iso- sys

LABEL pxe
CONFIG boot/syslinux/sysresccd_pxe.cfg

LABEL sys
CONFIG boot/syslinux/sysresccd_sys.cfg
root@fog:/mnt/loop# cat sysresccd/boot/syslinux/sysresccd_pxe.cfg 
INCLUDE boot/syslinux/sysresccd_head.cfg

LABEL sysresccd_nbd
TEXT HELP
Boot the SystemRescue live medium (Using NBD).
It allows you to install Arch Linux or perform system maintenance.
ENDTEXT
MENU LABEL Boot SystemRescue (NBD)
LINUX boot/x86_64/vmlinuz
INITRD boot/intel_ucode.img,boot/amd_ucode.img,boot/x86_64/sysresccd.img
APPEND archisobasedir=sysresccd archisolabel=RESCUE701 archiso_nbd_srv=${pxeserver}
SYSAPPEND 3

LABEL sysresccd_nfs
TEXT HELP
Boot the SystemRescue live medium (Using NFS).
It allows you to install Arch Linux or perform system maintenance.
ENDTEXT
MENU LABEL Boot SystemRescue (NFS)
LINUX boot/x86_64/vmlinuz
INITRD boot/intel_ucode.img,boot/amd_ucode.img,boot/x86_64/sysresccd.img
APPEND archisobasedir=sysresccd archiso_nfs_srv=${pxeserver}:/run/sysresccd/bootmnt
SYSAPPEND 3

LABEL sysresccd_http
TEXT HELP
Boot the SystemRescue live medium (Using HTTP).
It allows you to install Arch Linux or perform system maintenance.
ENDTEXT
MENU LABEL Boot SystemRescue (HTTP)
LINUX boot/x86_64/vmlinuz
INITRD boot/intel_ucode.img,boot/amd_ucode.img,boot/x86_64/sysresccd.img
APPEND archisobasedir=sysresccd archiso_http_srv=http://${pxeserver}/
SYSAPPEND 3

INCLUDE boot/syslinux/sysresccd_tail.cfg

Content sysresccd_sys.cfg:

INCLUDE boot/syslinux/sysresccd_head.cfg

LABEL sysresccd
TEXT HELP
Boot the SystemRescue live medium.
ENDTEXT
MENU LABEL Boot SystemRescue using default options
LINUX boot/x86_64/vmlinuz
INITRD boot/intel_ucode.img,boot/amd_ucode.img,boot/x86_64/sysresccd.img
APPEND archisobasedir=sysresccd archisolabel=RESCUE701

LABEL sysresccd_copytoram
TEXT HELP
Boot the SystemRescue live medium and copy system to RAM
ENDTEXT
MENU LABEL Boot SystemRescue and copy system to RAM (copytoram)
LINUX boot/x86_64/vmlinuz
INITRD boot/intel_ucode.img,boot/amd_ucode.img,boot/x86_64/sysresccd.img
APPEND archisobasedir=sysresccd archisolabel=RESCUE701 copytoram

LABEL sysresccd_checksum
TEXT HELP
Boot SystemRescue and verify the integrity of the live medium
ENDTEXT
MENU LABEL Boot SystemRescue and verify integrity of the medium (checksum)
LINUX boot/x86_64/vmlinuz
INITRD boot/intel_ucode.img,boot/amd_ucode.img,boot/x86_64/sysresccd.img
APPEND archisobasedir=sysresccd archisolabel=RESCUE701 checksum

LABEL sysresccd_nomodeset
TEXT HELP
Boot using basic display drivers to avoid display issues
ENDTEXT
MENU LABEL Boot SystemRescue using basic display drivers (nomodeset)
LINUX boot/x86_64/vmlinuz
INITRD boot/intel_ucode.img,boot/amd_ucode.img,boot/x86_64/sysresccd.img
APPEND archisobasedir=sysresccd archisolabel=RESCUE701 nomodeset

LABEL sysresccd_findroot
TEXT HELP
Boot from a Linux operating system installed on the disk
ENDTEXT
MENU LABEL Boot a Linux operating system installed on the disk (findroot)
LINUX boot/x86_64/vmlinuz
INITRD boot/intel_ucode.img,boot/amd_ucode.img,boot/x86_64/sysresccd.img
APPEND archisobasedir=sysresccd archisolabel=RESCUE701 findroot

LABEL sysresccd_break
TEXT HELP
Stop during the boot process before mounting the root filesystem
ENDTEXT
MENU LABEL Stop during the boot process before mounting the root filesystem
LINUX boot/x86_64/vmlinuz
INITRD boot/intel_ucode.img,boot/amd_ucode.img,boot/x86_64/sysresccd.img
APPEND archisobasedir=sysresccd archisolabel=RESCUE701 break

INCLUDE boot/syslinux/sysresccd_tail.cfg

Did you know which settings I need in FOG?

Maybe?:

LINUX boot/x86_64/vmlinuz
INITRD boot/intel_ucode.img,boot/amd_ucode.img,boot/x86_64/sysresccd.img
APPEND archisobasedir=sysresccd archisolabel=RESCUE701

Thank you!

george1421 · Dec 25, 2020, 8:11 AM

@seppim So the question would be if you were to boot this iso image which menu item would you pick? The answer you need IS in the config file, I just need to know the question.

Translating between syslinux and iPXE is pretty straight forward.

Using your example in syslinux format

LINUX boot/x86_64/vmlinuz
INITRD boot/intel_ucode.img,boot/amd_ucode.img,boot/x86_64/sysresccd.img
APPEND archisobasedir=sysresccd archisolabel=RESCUE701

that would translate to in iPXE

kernel boot/x86_64/vmlinuz
initrd boot/intel_ucode.img,boot/amd_ucode.img,boot/x86_64/sysresccd.img
imgargs vmlinuz archisobasedir=sysresccd archisolabel=RESCUE701

Then to normalize this with the others from my tutorial

kernel tftp://${fog-ip}/os/RescueCd/7.1/vmlinuz
initrd tftp://${fog-ip}/os/RescueCd/7.1/sysresccd.img
imgargs vmlinuz archisobasedir=sysresccd archisolabel=RESCUE701

Menu Item: os.SystemRescueCd.7.1
Description: SystemRescueCd 7.1
Parameters:
kernel tftp://${fog-ip}/os/RescueCd/7.1/vmlinuz
initrd tftp://${fog-ip}/os/RescueCd/7.1/sysresccd.img
imgargs vmlinuz archisobasedir=sysresccd archisolabel=RESCUE701
boot || goto MENU
Menu Show with: All Hosts

seppim · Dec 28, 2020, 9:05 AM

This post is deleted!

seppim · Dec 28, 2020, 1:19 PM

@george1421 Hello,

thank you … I´m booting via Virtualbox … but now it seems the Hiren´s Boot CD is a better choice for rescue systems:
https://www.hirensbootcd.org/

I download the latest ISO and mount it:

I read different posts:
https://forums.fogproject.org/topic/12939/adding-hiren-s-bootcd-pe-to-advanced-menu
https://wiki.fogproject.org/wiki/index.php/Include_any_ISO_in_the_FOG_Bootmenu#Hirens_15.04 (seems it is Ubuntu 15.04)
https://forums.fogproject.org/topic/10944/using-fog-to-pxe-boot-into-your-favorite-installer-images/19?_=1609149532133

But not sure how do.

Maybe you have a instruction for the current Hiren´s Boot CD?

Thank you!

george1421 · Dec 28, 2020, 1:19 PM

@seppim The last link you provided would be my instructions.

seppim · Dec 28, 2020, 2:05 PM

@george1421 Hello,

yes, but not working. I guess because I use the files from the Hiren`s Image?:

He load the 1.3GB boot.wim … and after the error displayed.

I set this in the menu:
set tftp-path tftp://${fog-ip}
set pe-path ${tftp-path}/os/hirens
kernel ${tftp-path}/wimboot gui
imgfetch --name BCD ${pe-path}/BCD BCD
imgfetch --name boot.sdi ${pe-path}/boot.sdi boot.sdi
imgfetch --name boot.wim ${pe-path}/boot.wim boot.wim
boot || goto MENU

Files in folder:

A Former User · Apr 5, 2021, 1:01 PM

Hi,

I made a post for SystemRescueCD > 5 :
https://forums.fogproject.org/topic/15295/here-config-for-systemrescuecd-8

george1421 · Apr 5, 2021, 2:12 PM

@the_ccm Would you mind if I included a link to your tutorial post in my larger post here? https://forums.fogproject.org/topic/10944/using-fog-to-pxe-boot-into-your-favorite-installer-images

Booting Rescue ISO

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