require syslinux-extlinux which is necessary for USB devices bootable on

rebase to version 2.9 (rhbz#2343296)
drop upstreamed patches
remove obsolete patch for rhbz2119501
remove broken patch for rhbz1492177 (VERBOSE is a read-only var, so the script silently failed)
install correct packages using proper RPM dependencies instead
rebase remaining patches

fix FTBFS after F42 bin/sbin merge

Bump release for October 2024 mass rebuild:
64018

Remove doc/rear-release-notes.txt, it is CC-BY-ND-3.0, which is not an allowed

Generate /etc/rear/os.conf during build again, it is better than generating it

skip btrfs subvolumes when detecting ESP partitions
fix booting on UEFI systems with multiple CDROM devices
fix copying of console kernel cmdline parameters
Use git to apply patches in %prep
Sync with patches in CentOS Stream 9 (kudos to @pcahyna!):
Backport PR 3250 to fix useless warning that libsystemd-core requires
Backport PR 3242 to fix IPv6 address in nfs:// and sshfs://
fix backup of btrfs subvolumes

Bump release for June 2024 mass rebuild

Sync with patches in CentOS Stream 9 (kudos to @pcahyna!) chronologically
Resolve libs for executable links in COPY_AS_IS, PR 3073
Skip invalid disk drives when saving layout PR 3047
Do not delete NetBackup logs in case of errors and save
Add /usr/openv/var to COPY_AS_IS_NBU, fixes an issue seen
Support saving and restoring hybrid BIOS/UEFI bootloader, PRs 3145 3136

do not generate /etc/rear/os.conf during build

copy the console= kernel arguments from the original system

replace dhcp-client with dhcpcd (rhbz#2247060)

make initrd accessible only by root (CVE-2024-23301)

fix unusable recovery with newer systemd (rbhz#2254871)

migrate to SPDX license format
properly use %license and %doc macros
use https in URLs

rebase to version 2.7 (rhbz#2215778)
drop obsolete patches
rebase remaining patches