[G4 Android Development] barcodelinux:
When flashing the ROM in step 3, I get:

"Extracting system & Boot

Updating partition details...

E:Unable to mount '/system'

...done

---------- Post added at 01:30 PM ---------- Previous post was at 01:02 PM ----------

I think the partitions might be different on each device. Here's the output of df of the H815:

Filesystem Size Used Free Blksize

/dev 1.37G 96.00K 1.37G 4096

/sys/fs/cgroup 1.37G 12.00K 1.37G 4096

/mnt/asec 1.37G 0.00K 1.37G 4096

/mnt/obb 1.37G 0.00K 1.37G 4096

/system 3.92G 3.00G 938.40M 4096

/cache 1.17G 32.62M 1.13G 4096

/data 22.70G 21.73G 994.51M 4096

/persist 27.48M 64.00K 27.42M 4096

/firmware 85.95M 74.77M 11.19M 16384

/sns 3.86M 60.00K 3.80M 4096

/persist-lg 3.86M 584.00K 3.29M 4096

/mpt 27.48M 9.26M 18.22M 4096

/cust 247.97M 7.64M 240.33M 4096

/mnt/shell/emulated 22.70G 21.73G 994.51M 4096

/storage/emulated/legacy 22.70G 21.73G 994.51M 4096

/storage/emulated 1.38G 0.00K 1.38G 4096

/mnt/media_rw/external_SD 119.05G 51.99G 67.06G 131072

/mnt/secure/asec 119.05G 51.99G 67.06G 131072

/storage/external_SD 119.05G 51.99G 67.06G 131072

/storage/emulated/0 22.70G 21.73G 994.51M 4096

/storage/emulated/0/Android/obb 22.70G 21.73G 994.51M 4096

/storage/emulated/legacy 22.70G 21.73G 994.51M 4096

/storage/emulated/legacy/Android/obb 22.70G 21.73G 994.51M 4096

---------- Post added at 01:37 PM ---------- Previous post was at 01:30 PM ----------

And from mount:

rootfs / rootfs ro,relatime 0 0

tmpfs /dev tmpfs rw,seclabel,nosuid,relatime,size=1437396k,nr_inodes=359349,mode=755 0 0

devpts /dev/pts devpts rw,seclabel,relatime,mode=600 0 0

none /dev/cpuctl cgroup rw,relatime,cpu 0 0

adb /dev/usb-ffs/adb functionfs rw,relatime 0 0

proc /proc proc rw,relatime 0 0

sysfs /sys sysfs rw,seclabel,relatime 0 0

selinuxfs /sys/fs/selinux selinuxfs rw,relatime 0 0

debugfs /sys/kernel/debug debugfs rw,relatime 0 0

none /sys/fs/cgroup tmpfs rw,seclabel,relatime,size=1437396k,nr_inodes=359349,mode=750,gid=1000 0 0

pstore /sys/fs/pstore pstore rw,relatime 0 0

none /acct cgroup rw,relatime,cpuacct 0 0

tmpfs /mnt/asec tmpfs rw,seclabel,relatime,size=1437396k,nr_inodes=359349,mode=755,gid=1000 0 0

tmpfs /mnt/obb tmpfs rw,seclabel,relatime,size=1437396k,nr_inodes=359349,mode=755,gid=1000 0 0

/mnt/pstore /mnt/pstore pstore rw,relatime 0 0

/dev/block/bootdevice/by-name/system /system ext4 ro,seclabel,relatime,data=ordered 0 0

/dev/block/bootdevice/by-name/cache /cache ext4 rw,seclabel,nosuid,nodev,noatime,noauto_da_alloc,errors=continue,data=ordered 0 0

/dev/block/bootdevice/by-name/userdata /data ext4 rw,seclabel,nosuid,nodev,noatime,noauto_da_alloc,resuid=1000,errors=continue,data=ordered 0 0

/dev/block/bootdevice/by-name/persist /persist ext4 rw,seclabel,nosuid,nodev,noatime,noauto_da_alloc,errors=continue,data=ordered 0 0

/dev/block/bootdevice/by-name/modem /firmware vfat ro,context=u:object_r:firmware_file:s0,relatime,uid=1000,gid=1000,fmask=0337,dmask=0227,codepage=437,iocharset=iso8859-1,shortname=lower,errors=remount-ro 0 0

/dev/block/bootdevice/by-name/sns /sns ext4 rw,seclabel,nosuid,nodev,noatime,noauto_da_alloc,errors=continue,data=ordered 0 0

/dev/block/bootdevice/by-name/drm /persist-lg ext4 rw,seclabel,nosuid,nodev,noatime,noauto_da_alloc,errors=continue,data=ordered 0 0

/dev/block/bootdevice/by-name/mpt /mpt ext4 rw,seclabel,nosuid,nodev,noatime,noauto_da_alloc,errors=continue,data=ordered 0 0

/dev/block/platform/f9824900.sdhci/by-name/cust /cust ext4 ro,seclabel,nosuid,nodev,relatime,noauto_da_alloc,data=ordered 0 0

/data/media /mnt/shell/emulated sdcardfs rw,nosuid,relatime,uid=1023,gid=1023,derive=legacy 0 0

/data/media /storage/emulated/legacy sdcardfs rw,nosuid,relatime,uid=1023,gid=1023,derive=legacy 0 0

tmpfs /storage/emulated tmpfs rw,seclabel,nosuid,nodev,relatime,size=1443540k,nr_inodes=360885,mode=050,gid=1028 0 0

/dev/block/vold/179:65 /mnt/media_rw/external_SD exfat rw,dirsync,nosuid,nodev,noexec,relatime,uid=1023,gid=1023,fmask=0007,dmask=0007,allow_utime=0020,codepage=cp437,iocharset=utf8,namecase=0,errors=remount-ro,discard,readahead_kb=512 0 0

/dev/block/vold/179:65 /mnt/secure/asec exfat rw,dirsync,nosuid,nodev,noexec,relatime,uid=1023,gid=1023,fmask=0007,dmask=0007,allow_utime=0020,codepage=cp437,iocharset=utf8,namecase=0,errors=remount-ro,discard,readahead_kb=512 0 0

/mnt/media_rw/external_SD /storage/external_SD sdcardfs rw,nosuid,relatime,uid=1023,gid=1023,derive=unified 0 0

/data/media /storage/emulated/0 sdcardfs rw,nosuid,relatime,uid=1023,gid=1023,derive=legacy 0 0

/data/media /storage/emulated/0/Android/obb sdcardfs rw,nosuid,relatime,uid=1023,gid=1023,derive=legacy 0 0

/data/media /storage/emulated/legacy sdcardfs rw,nosuid,relatime,uid=1023,gid=1023,derive=legacy 0 0

/data/media /storage/emulated/legacy/Android/obb sdcardfs rw,nosuid,relatime,uid=1023,gid=1023,derive=legacy 0 0