So I installed the Debian distribution, and now the RTC only updates the 
clock on reboot (warm start) not on boot (cold start)

When i do an Boot:
root@beaglebone:~# dmesg | grep 'i2c\|rtc'
[    0.000000] Kernel command line: console=tty0 console=ttyO0,115200n8 
quiet root=UUID=e7ab605c-ecc8-4fe9-9154-b35e06995d8a ro rootfstype=ext4 
rootwait fixrtc quiet init=/lib/systemd/systemd
[    0.131015] omap_i2c 44e0b000.i2c: bus 0 rev0.11 at 400 kHz
[    0.131930] input: tps65217_pwr_but as 
/devices/ocp.3/44e0b000.i2c/i2c-0/0-0024/input/input0
[    0.140321] omap_i2c 44e0b000.i2c: unable to select pin group
[    0.140845] omap_i2c 4819c000.i2c: bus 1 rev0.11 at 100 kHz
[    0.142187] omap_i2c 4819c000.i2c: unable to select pin group
[    0.753692] omap_rtc 44e3e000.rtc: rtc core: registered 44e3e000.rtc as 
rtc0
[    0.753892] i2c /dev entries driver
[    0.979232] [drm] Cannot find any crtc or sizes - going 1024x768
[    1.050535] omap_rtc 44e3e000.rtc: setting system clock to 2000-01-01 
00:00:00 UTC (946684800)
[   20.396105] rtc-ds1307 1-0068: rtc core: registered ds1307 as rtc1
[   20.396133] rtc-ds1307 1-0068: 56 bytes nvram
[   20.401854] i2c i2c-1: new_device: Instantiated device ds1307 at 0x68
*[   22.496899] i2c i2c-1: Failed to register i2c client ds1307 at 0x68 
(-16)*




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