flo: sideload via TWRP fails after "unmounting system"
/tmp # cat postmarketos/pmos.log
+ export CHROOT=/tmp/postmarketos/chroot
+ unzip -o /sideload/package.zip chroot/* -d /tmp/postmarketos
Archive: /sideload/package.zip
creating: chroot/
creating: chroot/bin/
inflating: chroot/bin/pmos_install
inflating: chroot/bin/pmos_setpw
inflating: chroot/bin/pmos_install_functions
inflating: chroot/bin/busybox
inflating: chroot/bin/umount
inflating: chroot/bin/cryptsetup
inflating: chroot/bin/findfs
inflating: chroot/bin/kpartx
inflating: chroot/bin/mkfs.ext2
inflating: chroot/bin/mkfs.ext4
inflating: chroot/bin/parted
inflating: chroot/bin/partprobe
inflating: chroot/bin/tar
inflating: chroot/install_options
creating: chroot/lib/
inflating: chroot/lib/ld-musl-armhf.so.1
inflating: chroot/lib/libblkid.so.1
inflating: chroot/lib/libblkid.so.1.1.0
inflating: chroot/lib/libc.musl-armhf.so.1
inflating: chroot/lib/libcom_err.so.2
inflating: chroot/lib/libcom_err.so.2.1
inflating: chroot/lib/libcrypto.so.1.1
inflating: chroot/lib/libcryptsetup.so.12
inflating: chroot/lib/libcryptsetup.so.12.3.0
inflating: chroot/lib/libdevmapper.so.1.02
inflating: chroot/lib/libe2p.so.2
inflating: chroot/lib/libe2p.so.2.3
inflating: chroot/lib/libext2fs.so.2
inflating: chroot/lib/libext2fs.so.2.4
inflating: chroot/lib/libmount.so.1
inflating: chroot/lib/libmount.so.1.1.0
inflating: chroot/lib/libpopt.so.0
inflating: chroot/lib/libpopt.so.0.0.0
inflating: chroot/lib/libuuid.so.1
inflating: chroot/lib/libuuid.so.1.3.0
inflating: chroot/lib/libargon2.so.1
inflating: chroot/lib/libjson-c.so.4
inflating: chroot/lib/libjson-c.so.4.0.0
inflating: chroot/lib/libncursesw.so.6
inflating: chroot/lib/libncursesw.so.6.1
inflating: chroot/lib/libparted.so.2
inflating: chroot/lib/libparted.so.2.0.1
inflating: chroot/lib/libreadline.so.8
inflating: chroot/lib/libreadline.so.8.0
+ . /tmp/postmarketos/chroot/install_options
+ DEVICE=asus-flo
+ FLAVOR=asus-flo
+ FLASH_KERNEL=true
+ ISOREC=false
+ KERNEL_PARTLABEL=boot
+ INITFS_PARTLABEL=RECOVERY
+ SYSTEM_PARTLABEL=system
+ INSTALL_PARTITION=system
+ CIPHER=aes-cbc-plain64
+ FDE=true
+ [ true = true ]
+ echo #!/sbin/sh
+ echo chroot /tmp/postmarketos/chroot /bin/pmos_setpw
+ chmod 755 /sbin/pmos_setpw
+ umount /tmp/postmarketos/chroot/pmos.log
umount: can't umount /tmp/postmarketos/chroot/pmos.log: No such file or directory
+ rm /tmp/postmarketos/chroot/pmos.log
rm: can't remove '/tmp/postmarketos/chroot/pmos.log': No such file or directory
+ :
+ touch /tmp/postmarketos/chroot/pmos.log
+ umount /tmp/postmarketos/chroot/pmos.zip
umount: can't umount /tmp/postmarketos/chroot/pmos.zip: No such file or directory
+ rm /tmp/postmarketos/chroot/pmos.zip
rm: can't remove '/tmp/postmarketos/chroot/pmos.zip': No such file or directory
+ :
+ touch /tmp/postmarketos/chroot/pmos.zip
+ mount --bind /tmp/postmarketos/pmos.log /tmp/postmarketos/chroot/pmos.log
+ mount --bind /sideload/package.zip /tmp/postmarketos/chroot/pmos.zip
+ fstab_recovery=recovery.fstab
+ [ ! -e /etc/recovery.fstab ]
+ cp /etc/recovery.fstab /tmp/postmarketos/chroot/recovery.fstab
+ mkdir -p /tmp/postmarketos/chroot/dev
+ mount --bind /dev /tmp/postmarketos/chroot/dev
+ mkdir -p /tmp/postmarketos/chroot/proc
+ mount --bind /proc /tmp/postmarketos/chroot/proc
+ mkdir -p /tmp/postmarketos/chroot/sys
+ mount --bind /sys /tmp/postmarketos/chroot/sys
+ cp -d /emmc@* /tmp/postmarketos/chroot
cp: can't stat '/emmc@*': No such file or directory
+ true
+ chmod 755 /tmp/postmarketos/chroot/bin/busybox /tmp/postmarketos/chroot/bin/cryptsetup /tmp/postmarketos/chroot/bin/findfs /tmp/postmarketos/chroot/bin/kpartx /tmp/postmarketos/chroot/bin/mkfs.ext2 /tmp/postmarketos/chroot/bin/mkfs.ext4 /tmp/postmarketos/chroot/bin/parted /tmp/postmarketos/chroot/bin/partprobe /tmp/postmarketos/chroot/bin/pmos_install /tmp/postmarketos/chroot/bin/pmos_install_functions /tmp/postmarketos/chroot/bin/pmos_setpw /tmp/postmarketos/chroot/bin/tar /tmp/postmarketos/chroot/bin/umount
+ chmod 755 /tmp/postmarketos/chroot/lib/ld-musl-armhf.so.1 /tmp/postmarketos/chroot/lib/libargon2.so.1 /tmp/postmarketos/chroot/lib/libblkid.so.1 /tmp/postmarketos/chroot/lib/libblkid.so.1.1.0 /tmp/postmarketos/chroot/lib/libc.musl-armhf.so.1 /tmp/postmarketos/chroot/lib/libcom_err.so.2 /tmp/postmarketos/chroot/lib/libcom_err.so.2.1 /tmp/postmarketos/chroot/lib/libcrypto.so.1.1 /tmp/postmarketos/chroot/lib/libcryptsetup.so.12 /tmp/postmarketos/chroot/lib/libcryptsetup.so.12.3.0 /tmp/postmarketos/chroot/lib/libdevmapper.so.1.02 /tmp/postmarketos/chroot/lib/libe2p.so.2 /tmp/postmarketos/chroot/lib/libe2p.so.2.3 /tmp/postmarketos/chroot/lib/libext2fs.so.2 /tmp/postmarketos/chroot/lib/libext2fs.so.2.4 /tmp/postmarketos/chroot/lib/libjson-c.so.4 /tmp/postmarketos/chroot/lib/libjson-c.so.4.0.0 /tmp/postmarketos/chroot/lib/libmount.so.1 /tmp/postmarketos/chroot/lib/libmount.so.1.1.0 /tmp/postmarketos/chroot/lib/libncursesw.so.6 /tmp/postmarketos/chroot/lib/libncursesw.so.6.1 /tmp/postmarketos/chroot/lib/libparted.so.2 /tmp/postmarketos/chroot/lib/libparted.so.2.0.1 /tmp/postmarketos/chroot/lib/libpopt.so.0 /tmp/postmarketos/chroot/lib/libpopt.so.0.0.0 /tmp/postmarketos/chroot/lib/libreadline.so.8 /tmp/postmarketos/chroot/lib/libreadline.so.8.0 /tmp/postmarketos/chroot/lib/libuuid.so.1 /tmp/postmarketos/chroot/lib/libuuid.so.1.3.0
+ chroot /tmp/postmarketos/chroot /bin/pmos_install
+ /bin/busybox --install /bin
+ . /bin/pmos_install_functions
+ export 'PATH=/bin'
+ export 'LD_LIBRARY_PATH=/lib'
+ . /install_options
+ DEVICE=asus-flo
+ FLAVOR=asus-flo
+ FLASH_KERNEL=true
+ ISOREC=false
+ KERNEL_PARTLABEL=boot
+ INITFS_PARTLABEL=RECOVERY
+ SYSTEM_PARTLABEL=system
+ INSTALL_PARTITION=system
+ CIPHER=aes-cbc-plain64
+ FDE=true
+ ui_print ' '
+ echo 'ui_print '
+ echo ui_print
+ ui_print ' 8 '
+ echo 'ui_print 8 '
+ echo ui_print
+ ui_print ' 888 '
+ echo 'ui_print 888 '
+ echo ui_print
+ ui_print ' 88888 '
+ echo 'ui_print 88888 '
+ echo ui_print
+ ui_print ' 8888888 '
+ echo 'ui_print 8888888 '
+ echo ui_print
+ ui_print ' 888888888 '
+ echo 'ui_print 888888888 '
+ echo ui_print
+ ui_print ' 88888888888 '
+ echo 'ui_print 88888888888 '
+ echo ui_print
+ ui_print ' 888888888888 '
+ echo 'ui_print 888888888888 '
+ echo ui_print
+ ui_print ' 8 888888888888 '
+ echo 'ui_print 8 888888888888 '
+ echo ui_print
+ ui_print ' 888 88888888 '
+ echo 'ui_print 888 88888888 '
+ echo ui_print
+ ui_print ' 88888888 88888888 '
+ echo 'ui_print 88888888 88888888 '
+ echo ui_print
+ ui_print ' 88888888 88888888 '
+ echo 'ui_print 88888888 88888888 '
+ echo ui_print
+ ui_print ' 88888888 88888888 '
+ echo 'ui_print 88888888 88888888 '
+ echo ui_print
+ ui_print ' 88888888 88888888 '
+ echo 'ui_print 88888888 88888888 '
+ echo ui_print
+ ui_print ' 88888888 888 '
+ echo 'ui_print 88888888 888 '
+ echo ui_print
+ ui_print ' 88888888 8 88888 '
+ echo 'ui_print 88888888 8 88888 '
+ echo ui_print
+ ui_print ' 88888888 8888888 '
+ echo 'ui_print 88888888 8888888 '
+ echo ui_print
+ ui_print ' 88888888 88888888 '
+ echo 'ui_print 88888888 88888888 '
+ echo ui_print
+ ui_print ' 88888888888 8888888888888888888888 '
+ echo 'ui_print 88888888888 8888888888888888888888 '
+ echo ui_print
+ ui_print ' 8888888888888 8888888888888888888888 '
+ echo 'ui_print 8888888888888 8888888888888888888888 '
+ echo ui_print
+ ui_print ' 8888888888888 888888888888888888888888 '
+ echo 'ui_print 8888888888888 888888888888888888888888 '
+ echo ui_print
+ ui_print '8888888888888 88888888888888888888888888'
+ echo 'ui_print 8888888888888 88888888888888888888888888'
+ echo ui_print
+ ui_print ' '
+ echo 'ui_print '
+ echo ui_print
+ ui_print 'postmarketOS recovery installer '
+ echo 'ui_print postmarketOS recovery installer '
+ echo ui_print
+ ui_print ' '
+ echo 'ui_print '
+ echo ui_print
+ mountpoint -q /mnt/pmOS
+ '[' -e /dev/mapper/pm_crypt ]
+ ui_print 'Symlinking block devices...'
+ echo 'ui_print Symlinking block devices...'
+ echo ui_print
+ ln -sf /dev/block/loop0 /dev/block/loop1 /dev/block/loop2 /dev/block/loop3 /dev/block/loop4 /dev/block/loop5 /dev/block/loop6 /dev/block/loop7 /dev/block/mmcblk0 /dev/block/mmcblk0p1 /dev/block/mmcblk0p10 /dev/block/mmcblk0p11 /dev/block/mmcblk0p12 /dev/block/mmcblk0p13 /dev/block/mmcblk0p14 /dev/block/mmcblk0p15 /dev/block/mmcblk0p16 /dev/block/mmcblk0p17 /dev/block/mmcblk0p18 /dev/block/mmcblk0p19 /dev/block/mmcblk0p2 /dev/block/mmcblk0p20 /dev/block/mmcblk0p21 /dev/block/mmcblk0p22 /dev/block/mmcblk0p23 /dev/block/mmcblk0p24 /dev/block/mmcblk0p25 /dev/block/mmcblk0p26 /dev/block/mmcblk0p27 /dev/block/mmcblk0p28 /dev/block/mmcblk0p29 /dev/block/mmcblk0p3 /dev/block/mmcblk0p30 /dev/block/mmcblk0p4 /dev/block/mmcblk0p5 /dev/block/mmcblk0p6 /dev/block/mmcblk0p7 /dev/block/mmcblk0p8 /dev/block/mmcblk0p9 /dev/block/platform /dev/block/ram0 /dev/block/ram1 /dev/block/ram10 /dev/block/ram11 /dev/block/ram12 /dev/block/ram13 /dev/block/ram14 /dev/block/ram15 /dev/block/ram2 /dev/block/ram3 /dev/block/ram4 /dev/block/ram5 /dev/block/ram6 /dev/block/ram7 /dev/block/ram8 /dev/block/ram9 /dev/
+ ui_print 'Extracting partition table...'
+ echo 'ui_print Extracting partition table...'
+ echo ui_print
+ extract_partition_table
+ fstab_recovery=recovery.fstab
+ '[' '!' -e /recovery.fstab ]
+ findfs 'PARTLABEL=system'
+ dev=/dev/block/mmcblk0p22
+ '[' -n /dev/block/mmcblk0p22 ]
+ echo 'install device found at /dev/block/mmcblk0p22'
install device found at /dev/block/mmcblk0p22
+ export 'INSTALL_DEVICE=/dev/block/mmcblk0p22'
+ '[' false '=' true ]
+ findfs 'PARTLABEL=boot'
+ dev=/dev/block/mmcblk0p14
+ '[' -n /dev/block/mmcblk0p14 ]
+ echo 'boot partition found at /dev/block/mmcblk0p14'
boot partition found at /dev/block/mmcblk0p14
+ export 'BOOT_PARTITION=/dev/block/mmcblk0p14'
+ ui_print 'Unmounting /system...'
+ echo 'ui_print Unmounting /system...'
+ echo ui_print
+ umount_install_partition
+ awk '$1 == install_part' 'install_part=/dev/block/mmcblk0p22' /proc/mounts
+ '[' -n '/dev/block/mmcblk0p22 /system ext4 rw,seclabel,relatime,data=ordered 0 0' ]
+ umount /dev/block/mmcblk0p22
umount: /dev/block/mmcblk0p22: not mounted.
Unsure what other information to give you. Flashing via pmbootstrap directly would be tricky as I'm working on a Debian VM.