The patch causes U-Boot freezes in some configurations. The root cause
is that U-Boot does not allow to use the bss section in pre-relocation
code (which is where the UART is used). Drop the patch as it is not
required currently.
See also:
http://u-boot.10912.n7.nabble.com/RPi4-U-Boot-freeze-td424432.html#a427198
The to symlink serial0/1 currently might apply to the first or second
ttyAMAX instance. In downstream, a patch makes sure that the first
PL011 is always ttyAMA0. However, upstream the numbering depends on the
UART alias, which leads to the first PL011 being ttyAMA1.
Check the actual iobase too to make sure we are dealing with the first
PL011 instance.
See also:
05cfe136f7 (diff-2678c183f503319c8d8c09c818af789a)
The new readline utilty used by the CLI add-on requires the size of the
terminal to be set. Use the resize command to initialize terminal size
on login if we are running on a serial terminal.
The hassos-expand script calls sfdisk to find free disk space. It seems
that today it considers the space before the first partition as free:
$ sudo sfdisk -Fq /dev/sdi
Start End Sectors Size
2048 16383 14336 7M
This causes the script to always resize. It seems not to cause harm to
the partition table (it does not resize really). However, the call to
partx seems to confuse systemd and kill the mnt-data.mount process
(presumably because udev causes remove/add events for the by-label
device units).
Consider everything below 8MiB to not be worthy of a size change. This
avoids missdetection and resize attempts where there is no need.
Aligning partitions (and hence file system structures) to higher level
then 512 byte sectors is common practise and highly recommended for flash
backed block devices. It makes sure that the underlaying flash translation
layer (FTL) does not amplify writes due to missalignment of its erase
block size. Use a 1MiB boundary which is what a modern fdisk is doing.
Before this change:
# fdisk /dev/mmcblk0
Welcome to fdisk (util-linux 2.35.1).
Changes will remain in memory only, until you decide to write them.
Be careful before using the write command.
Command (m for help): p
Disk /dev/mmcblk0: 14.57 GiB, 15634268160 bytes, 30535680 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: 0x48617373
Device Boot Start End Sectors Size Id Type
/dev/mmcblk0p1 * 16384 65537 49154 24M c W95 FAT32 (LBA)
/dev/mmcblk0p2 65539 1228814 1163276 568M 5 Extended
/dev/mmcblk0p3 1228816 1425425 196610 96M 83 Linux
/dev/mmcblk0p4 1425427 30535679 29110253 13.9G 83 Linux
/dev/mmcblk0p5 65540 114693 49154 24M 83 Linux
/dev/mmcblk0p6 114695 638984 524290 256M 83 Linux
/dev/mmcblk0p7 638986 688139 49154 24M 83 Linux
/dev/mmcblk0p8 688141 1212430 524290 256M 83 Linux
/dev/mmcblk0p9 1212432 1228814 16383 8M 83 Linux
After this change:
# fdisk /dev/mmcblk0
Welcome to fdisk (util-linux 2.35.1).
Changes will remain in memory only, until you decide to write them.
Be careful before using the write command.
Command (m for help): p
Disk /dev/mmcblk0: 14.57 GiB, 15634268160 bytes, 30535680 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: 0x48617373
Device Boot Start End Sectors Size Id Type
/dev/mmcblk0p1 * 16384 65535 49152 24M c W95 FAT32 (LBA)
/dev/mmcblk0p2 65536 1239039 1173504 573M 5 Extended
/dev/mmcblk0p3 1241088 1437695 196608 96M 83 Linux
/dev/mmcblk0p4 1439744 30535679 29095936 13.9G 83 Linux
/dev/mmcblk0p5 67584 116735 49152 24M 83 Linux
/dev/mmcblk0p6 118784 643071 524288 256M 83 Linux
/dev/mmcblk0p7 645120 694271 49152 24M 83 Linux
/dev/mmcblk0p8 696320 1220607 524288 256M 83 Linux
/dev/mmcblk0p9 1222656 1239039 16384 8M 83 Linux
See also:
https://unix.stackexchange.com/questions/248939/how-to-achieve-optimal-alignment-for-emmc-partitionhttp://3gfp.com/wp/2014/07/formatting-sd-cards-for-speed-and-lifetime/
Remove code duplication and make sure to load socinfo only once. Also
set board_rev before MAC address to make sure board_rev is set even if
loading MAC address from efuses fails.
* Add ODROID-N2+ support
Add ODROID-N2+ support with the new SoC revision c. Extend the U-Boot
script: Assume ODROID-N2 if the SoC revision is "a" (there are only "a"
revision SoCs on ODROID N2) and assume N2+ otherwise.
Currently using overclock mode as proposed in the upstream kernel patches.
* Update hassos-hook.sh
Co-authored-by: Pascal Vizeli <pascal.vizeli@syshack.ch>
The proposed changed is to run the qemu guest agent for QEMU hypervisor. QEMU hypervisor and KVM hypervisor are using the same guest agent.
systemd allow detecting the difference between the two hypervisors. The change is using OR trigger, meaning it will trigger if one of the "ConditionVirtualization" rules is true.
