root@eg-15EA85:/# sysupgrade -v /tmp/openwrt-snapshot-r22032+10-f8954a56e5-sunxi -cortexa7-etactica_egm400-squashfs-sdcard.img.gz Wed Feb 8 13:40:38 UTC 2023 upgrade: Image metadata not present Wed Feb 8 13:40:38 UTC 2023 upgrade: Reading partition table from bootdisk... zcat: write error: Broken pipe zcat: write: Broken pipe Wed Feb 8 13:40:39 UTC 2023 upgrade: Reading partition table from image... Wed Feb 8 13:40:39 UTC 2023 upgrade: Saving config files... etc/config/btagent etc/config/dhcp etc/config/dropbear blah/lots/of/files more/files/snipped Wed Feb 8 13:40:39 UTC 2023 upgrade: Commencing upgrade. Closing all shell sessions. Watchdog handover: fd=3 - watchdog - Watchdog does not have CARDRESET support Wed Feb 8 13:40:40 UTC 2023 upgrade: Sending TERM to remaining processes ... Wed Feb 8 13:40:44 UTC 2023 upgrade: Sending KILL to remaining processes ... [ 7012.241519] stage2 (11570): drop_caches: 3 Wed Feb 8 13:40:51 UTC 2023 upgrade: Switching to ramdisk... Wed Feb 8 13:40:53 UTC 2023 upgrade: Performing system upgrade... Wed Feb 8 13:40:53 UTC 2023 upgrade: Reading partition table from bootdisk... 0+1 records in 0+1 records out zcat: write error: Broken pipe zcat: write: Broken pipe Wed Feb 8 13:40:53 UTC 2023 upgrade: Reading partition table from image... 1016+0 records in 1016+0 records out zcat: write error: Broken pipe zcat: write: Broken pipe Writing image to /dev/mmcblk1p1... zcat: write error: Broken pipe zcat: write: Broken pipe 65536+0 records in 32+0 records out Writing image to /dev/mmcblk1p2... 60414+1 records in 29+1 records out Writing new UUID to /dev/mmcblk1... 4+0 records in 4+0 records out zcat: write error: Broken pipe zcat: write: Broken pipe Wed Feb 8 13:41:00 UTC 2023 upgrade: Upgrade completed Wed Feb 8 13:41:01 UTC 2023 upgrade: Rebooting system... umount: can't unmount /dev: Resource busy umount: can't unmount /tmp: Resource busy [ 7022.300643] reboot: Restarting system U-Boot SPL 2023.04-rc1-00204-g20b43c17a0 (Feb 06 2023 - 10:57:59 +0000) DRAM: 512 MiB Trying to boot from MMC2 U-Boot 2023.04-rc1-00204-g20b43c17a0 (Feb 06 2023 - 10:57:59 +0000) Allwinner Technology CPU: Allwinner H3 (SUN8I 1680)