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So, disconnected battery, removed SD card, reconnected battery. Power light comes on, no boot (no surprise)
Replace SD Card, back to original problem, blinking ligth, then nothing.
Put SD card into my pc:
[root@lugosi ~]# fdisk -l /dev/sdb
Disk /dev/sdb: 3.7 GiB, 3965190144 bytes, 7744512 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: 0x00000000
Device Boot Start End Sectors Size Id Type
/dev/sdb1 49152 573440 524289 256M 83 Linux
/dev/sdb2 573441 1097729 524289 256M 83 Linux
/dev/sdb3 1097730 7744511 6646782 3.2G b W95 FAT32
The two linix partitions claim to be ext4 and are labelled rootfs and recoveryfs.
Have backed up two ways:
i) dd the entire card to a disk file
ii) copied the file contents of each partition on to my pc harddrive.
I'm now going to to try fsck...
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