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ipxe_scripts
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Combine initrd and squashfs and unified boot 

- one one initrd which also includes squashfs
- same procedure for EFI and non-EFI
This commit is contained in:
Peter Šurda 2021-11-03 14:18:01 +08:00
parent 5623a9dd8c
commit 009bbb05d6
Signed by: PeterSurda
GPG Key ID: 0C5F50C0B5F37D87
1 changed files with 4 additions and 25 deletions
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@ -12,7 +12,7 @@ imgtrust --permanent
# For the "focal" part of the URL string, in case that changes in the future.
set ubuntu-variant focal
goto get_platform
goto get_arch
#################
@ -135,24 +135,6 @@ sleep 5
exit
# set variables based on whether it's EFI or not
:get_platform
iseq ${platform} efi && goto is_efi || goto not_efi
# Attributes for EFI boot
:is_efi
# hack, see https://github.com/coreos/fedora-coreos-tracker/issues/390#issuecomment-588328137
set squashfs squashfs.cpio
set extra_initrd initrd=squashfs.cpio
goto get_arch
# this sets different attributes for non-EFI (legacy PC) boot
:not_efi
set squashfs squashfs
clear extra_initrd
goto get_arch
# Get relevant CPU arch.
:get_arch
iseq ${buildarch} arm32 && goto start_arm32 ||
@ -208,9 +190,6 @@ goto static_ip_boot_setup
# However, note that imgverify will fail if you refer to it as "/squashfs"
# instead of "squashfs".
imgfetch http://images.sysdeploy.org/${ubuntu-variant}/${arch-info}/${squashfs} /${squashfs} || goto try_next_card
imgverify --signer images.sysdeploy.org ${squashfs} http://images.sysdeploy.org/${ubuntu-variant}/${arch-info}/${squashfs}.sig || goto error_handler
# "--signer" validates against the subject common name field of the signing
# certificate. That signing cert must have both the digital signature key
# usage set and the code-signing key usage extension set.
@ -219,8 +198,8 @@ imgverify --signer images.sysdeploy.org ${squashfs} http://images.sysdeploy.org/
# make sure you pick a common name with a FQDN you control, even if you're
# using a custom CA that you import during build.
initrd http://images.sysdeploy.org/${ubuntu-variant}/${arch-info}/boot-initrd || goto try_next_card
imgverify --signer images.sysdeploy.org boot-initrd http://images.sysdeploy.org/${ubuntu-variant}/${arch-info}/boot-initrd.sig || goto error_handler
initrd http://images.sysdeploy.org/${ubuntu-variant}/${arch-info}/initrd.cpio || goto try_next_card
imgverify --signer images.sysdeploy.org boot-initrd http://images.sysdeploy.org/${ubuntu-variant}/${arch-info}/initrd.cpio.sig || goto error_handler
kernel http://images.sysdeploy.org/${ubuntu-variant}/${arch-info}/boot-kernel || goto try_next_card
imgverify --signer images.sysdeploy.org boot-kernel http://images.sysdeploy.org/${ubuntu-variant}/${arch-info}/boot-kernel.sig || goto error_handler
@ -233,7 +212,7 @@ echo ip-info ${ip-info}
sleep 1
boot boot-kernel initrd=boot-initrd ${extra_initrd} rootfstype=squashfs root=/squashfs ip=${ip-info} overlayroot=tmpfs:recurse=0 systemd.clock-usec=${unixtime:int32}000000 ds=nocloud-net;s=https://cloud-init.sysdeploy.org/ || goto error_handler
boot boot-kernel initrd=squashfs.cpio rootfstype=squashfs root=/squashfs ip=${ip-info} overlayroot=tmpfs:recurse=0 systemd.clock-usec=${unixtime:int32}000000 ds=nocloud-net;s=https://cloud-init.sysdeploy.org/ || goto error_handler
# unixtime variable must be used with int32, because that's the only way it
# will display as decimal digits. unit32 and string both display as hex.