- gzip in busybox 1.29.1 doesn't seem to use compression anymore, with -1 and -9 both coming
out to the same size, generally dramatically larger than previously resulting in
boot-new.img exceeding the partition size on some devices so then failing the check.
e.g. 28mb ramdisk.cpio -> 11.2mb ramdisk.cpio.gz in 1.28.4, is now 20mb in 1.29.1
thanks nathanchance for reporting
- adapted from https://github.com/nathanchance/AnyKernel2/commit/3dfba3dcabff3cf1f859276e1851ae35891d8801
- works around odd behaviors in TWRP on system-as-root devices, but retains working fallback using /system/system/build.prop if getprop also fails
- simplify unmount_all stderr redirection
Please see the above linked commit for further details.
Thanks to nathanchance for reporting, the device-specific workaround, and much testing
- was broken with search strings containing paths (a limitation with busybox sed)
- now matches blank lines and lines containing only white space for next-empty-line matching
- include end-of-file as the final possible end-point for next-empty-line matching
This reverts commit bafe4bd586.
A certain level of functioning recovery is expected by AnyKernel2 (versus this patch's source, the Magisk installer, which is extremely pessimistic).
- search using a list of known ramdisk/kernel or recovery by-name partition names
- block=auto is equivalent to block=boot
- for use with broad, device non-specific AK2-based mod zips
- remove "kernel" from "Installing" wording since AK2 is also used on recoveries, and multi-partition Treble devices and this could be misleading
- fix getprop build.prop fallback on /system/system devices
- check for and remove patch for multi-partition/reset_ak (so removal of ramdisk/ and patch/ with the addition of $(basename block)-files is now the full trigger)
- wipe $(basename block)-files/ramdisk to ensure proper copied output, as the original contents are retained in the copied rdtmp
- for ramdisk-only changes that don't require added files or patch snippets, create the $(basename block)-files subfolder for proper output backup with reset_ak
- if no ramdisk is found in the zip, check for and copy files in from "$(basename $block)-files", e.g. boot-files + recovery-files subfolders, each which can contain their own zImage, and ramdisk and patch subfolders, etc.
- as part of the reset_ak command, copy the output files back to the corresponding *-files subfolder for use in debugging
* when ak2-core.sh gets run again by reset_ak after changing block= in anykernel.sh the above process begins again
- was only available in the update-binary, so allow in anykernel.sh as well, for use with checking /system/build.prop, /default.prop, $ramdisk/default.prop, etc.
- clean up false error output where sections are already removed on repeat flashes
- move size check to just before flash since we must compare against the fully repacked, signed boot-new.img
- place version text in a file named "version" in the root of the zip and it will display after the kernel.string when flashing
- useful in conjunction with build scripts, i.e. a generated version file not actually part of the kernel AK2 repo
- introduce reset_ak function to reset the /tmp/anykernel directory to allow for multi-partition mods; use after changing the AK2 shell (block, etc.) variables again
- make patch_cmdline more intuitive; match the string, and if it doesn't exist add the replacement string, and if so replace with it
- allow AVBv1 signing of recovery by adding simple partition type detection based on name
- restore LD_LIBRARY_PATH after AVBv1 signing to be friendly to recovery when flashed in between other zips
- split dump_boot into split_boot + unpack_ramdisk and write_boot into repack_ramdisk + flash_boot
- fully backwards compatible as dump_boot and write_boot still exist and call these new functions (i.e. no changes needed to anykernel.sh)
- those that wish to do zImage-only AK2 packages can now use split_boot intead of dump_boot and and flash_boot instead of repack_ramdisk in their anykernel.sh
- add failsafe check for failed boot-new.img creation to ensure abort before wiping target partition in edge cases
- hide some expected stderr for AK2 mods with no additional ramdisk files
- fix U-Boot support by passing correct repacked ramdisk filename
- fix multi-compression support during repack derp
- fix cleanup on successful flash not working due to double match from cleanuponabort
- dtbo may be added as dtbo or dtbo.img to the base of the zip
- new Pixel 2 ro.boot.slot doesn't contain _ like Pixel ro.boot.slot_suffix does
Thanks @nathanchance for the majority of the work and research on this one, via #12
- ramdisk_compression=auto; (or undefined) in anykernel.sh is the default, automatically repacking with the detected unpack format
- changing auto to gz lzo lzma xz bz2 lz4-l (for lz4 legacy) or lz4 force the repack as that format
- to this point only gzip was supported, so add support for bzip2, lzop, lzma, xz and lz4 by detecting file magic via plaintext od dump comparison
- busybox contains all necessary formats except for lzma/xz compression (has decompression), and lz4 so add both of these binaries to the minimal default setup
ARM binaries; see AIK-mobile v2.9 for other architectures and optional binaries:
https://forum.xda-developers.com/showthread.php?t=2073775
- add workaround for malformed ramdisks without leading directory cpio entries
- explicitly set ramdisk root directory to 755 (AOSP default) to avoid issues in some environments
- remove more things confusing to new adopters (AK2 does not root)
- update patch_fstab examples for corrected syntax
DO NOT MERGE if you have already updated your ramdisk properly for your device
- the 'original string' ($5) was not being used, instead the entire part was always being replaced with the 'replacement string' ($6)
- replace the target 'original string' of the entry part with 'replacement string' as expected/intended
NOTE: any properly written patch_fstab commands with original string as the complete original part WILL remain working as this is a backwards compatible change
- add built-in support for rkcrc for Rockchip board devices signed ramdisk image (see: https://github.com/rockchip-linux/rkflashtool)
- add built-in detection and support for Barnes & Noble Nook 'Green Loader/Green Recovery' signature
- fix busybox getting permissions on some devices where chmod does not accept -R to recurse
- use busybox for more possibly non-standard broken recovery shell commands
- silence some more generally expected/inconsequential stderr
- symlinks under /system/lib/modules were getting broken, so follow them instead to replace the target file, avoiding issues with multiple versions of the same module and running out of free space (e.g. OnePlus devices link /system/lib/modules/wlan.ko to /system/lib/modules/qca_cld3/qca_cld3_wlan.ko)
- set contexts on copied modules (following symlinks) to system_file to avoid SELinux issues where unlabeled module files might not be allowed to load
- sometimes it's difficult to anchor to specific end lines due to variations across ROMs, so allow the end line to be blank " "
- note this will also remove the trailing blank line so for replacements a trailing \n should be added to maintain spacing; this should be pretty intuitive since you are including the blank line as the end line search
- some Samsung device images can be unpacked and repacked with the standard tools but the id sha1 is offset differently than in the standard header resulting in broken hash type detection
- to make it easier to diagnose issues with patches, image creation or flashing, adding "-debugging" to the end of the AK2 zip filename will enable the creation of a tar.gz of the entire /tmp directory after the installation process (but before cleanup, of course), this includes recovery.log, boot.img, boot-new.img and any other remnants to allow more thorough, direct debugging at a later time
osm0sis