* current aarch64 kernel image alone is 24MB:
24M tmp-glibc/deploy/images/raspberrypi4-64/Image-raspberrypi4-64-1-6.1.77+git0+43d1723dbe_77fc1fbcb5-r0.1-20110405230000.bin
and with rpi-bootfiles it takes around 46MB (e.g. this is from kirkstone raspberrypi4-64 build):
2.0K boot.scr
2.0K cmdline.txt
4.0K fixup4cd.dat
4.0K fixup_cd.dat
4.0K uEnv.txt
6.0K fixup4.dat
8.0K fixup.dat
10K fixup4db.dat
10K fixup4x.dat
10K fixup_db.dat
10K fixup_x.dat
16K uboot.env
36K config.txt
52K bcm2711-rpi-4-b.dtb
52K bcm2711-rpi-400.dtb
52K bcm2711-rpi-cm4.dtb
52K bootcode.bin
126K overlays
558K kernel8.img
786K start4cd.elf
786K start_cd.elf
2.2M start4.elf
2.9M start.elf
2.9M start4x.elf
3.6M start4db.elf
3.6M start_x.elf
4.6M start_db.elf
23M Image
* it is increased automatically to fit the content:
tmp-glibc/deploy/images/raspberrypi4-64 $ sfdisk -l core-image-minimal-raspberrypi4-64.rootfs--1.0-r0-20110405230000.wic
Disk core-image-minimal-raspberrypi4-64.rootfs--1.0-r0-20110405230000.wic: 241.2 MiB, 252915712 bytes, 493976 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x076c4a2a
Device Boot Start End Sectors Size Id Type
core-image-minimal-raspberrypi4-64.rootfs--1.0-r0-20110405230000.wic1 * 8192 157815 149624 73.1M c W95 FAT32 (LBA)
core-image-minimal-raspberrypi4-64.rootfs--1.0-r0-20110405230000.wic2 163840 493975 330136 161.2M 83 Linux
but if you want to update the kernel in place or add some additional files
later, it might not be big enough, increase the minimal size from 20M to 100M
* reminder (as I forgot about it before):
"--size" is just minimum
https://docs.yoctoproject.org/ref-manual/kickstart.html
says:
--size: The minimum partition size. Specify as an integer value optionally followed by one of the units “k” / “K” for kibibyte, “M” for mebibyte and “G” for gibibyte. The default unit if none is given is “M”. You do not need this option if you use --source.
--fixed-size: The exact partition size. Specify as an integer value optionally followed by one of the units “k” / “K” for kibibyte, “M” for mebibyte and “G” for gibibyte. The default unit if none is given is “M”. Cannot be specify together with --size. An error occurs when assembling the disk image if the partition data is larger than --fixed-size.
Signed-off-by: Martin Jansa <martin.jansa@gmail.com>
Recently wic was modified to no longer exclude /boot from partitions
added to fstab. The --on parameter in many kickstart specifications
insufficiently resolved the MMC device, resulting in attempts to mount
/dev/mmcblkp1 as boot when the device should be /dev/mmcblk0p1.
With systemd the mount failure is an error and the system drops into
emergency mode.
Signed-off-by: Peter A. Bigot <pab@pabigot.com>
Wic supports picking up image files from toplevel LAYERDIR/wic directory. Using
this location has the benefit that image files are easier to find (compare that
to previously used scripts/lib/image/canned-wks/ location).
Signed-off-by: Maciej Borzecki <maciej.borzecki@rndity.com>
