Robert
On Friday, January 23, 2015 at 7:39:28 AM UTC-8, RobertCNelson wrote:
On Fri, Jan 23, 2015 at 9:31 AM, toni incog toni@gmail.com
javascript: wrote:
Sure, let's say just your latest greatest debian kernel 3.14 running
headless doing nothing only being great?
Still missing the point..
So in that case, you have ext4, and / mounted rw with noatime..
Let's say it's idle:
It'll survive a few power yanks and fsck.ext4 will fix it up most of the
time..
I'd say about a week before you'll have to reflash the eMMC to due
file system corruption...
Any experiences with broken eMMCs? How important is using a backup
battery
in a daily unclean power down situation. What's your feeling: days,
weeks,
months, years, decades?
Really anything then a week of unclean power down's, start looking
at read only root* and other file systems.
* We have a beagleboard-xm running on the roof of this building as a
webcam taking pictures all day, it's been running (off/on) for over 3
years on the same microSD card running Debian Squeeze, on a read only
rootfs.. It's powered by a solar array, so power is variable all day
long..
https://wiki.debian.org/ReadonlyRoot
Is there such a debian image available for beaglebone black ?
Hmmm, I guess I've some work to do in shutting down some bbb's properly
otherwise I can answer my own question. Thinking aloud a battery and
bringing the power button external.
Regards,
--
Robert Nelson
http://www.rcn-ee.com/
On Friday, January 23, 2015 at 7:39:28 AM UTC-8, RobertCNelson wrote:
On Fri, Jan 23, 2015 at 9:31 AM, toni incog toni@gmail.com
javascript: wrote:
Sure, let's say just your latest greatest debian kernel 3.14 running
headless doing nothing only being great?
Still missing the point..
So in that case, you have ext4, and / mounted rw with noatime..
Let's say it's idle:
It'll survive a few power yanks and fsck.ext4 will fix it up most of the
time..
I'd say about a week before you'll have to reflash the eMMC to due
file system corruption...
Any experiences with broken eMMCs? How important is using a backup
battery
in a daily unclean power down situation. What's your feeling: days,
weeks,
months, years, decades?
Really anything then a week of unclean power down's, start looking
at read only root* and other file systems.
* We have a beagleboard-xm running on the roof of this building as a
webcam taking pictures all day, it's been running (off/on) for over 3
years on the same microSD card running Debian Squeeze, on a read only
rootfs.. It's powered by a solar array, so power is variable all day
long..
https://wiki.debian.org/ReadonlyRoot
Hmmm, I guess I've some work to do in shutting down some bbb's properly
otherwise I can answer my own question. Thinking aloud a battery and
bringing the power button external.
Regards,
--
Robert Nelson
http://www.rcn-ee.com/
On Friday, January 23, 2015 at 7:39:28 AM UTC-8, RobertCNelson wrote:
On Fri, Jan 23, 2015 at 9:31 AM, toni incog toni@gmail.com
javascript: wrote:
Sure, let's say just your latest greatest debian kernel 3.14 running
headless doing nothing only being great?
Still missing the point..
So in that case, you have ext4, and / mounted rw with noatime..
Let's say it's idle:
It'll survive a few power yanks and fsck.ext4 will fix it up most of the
time..
I'd say about a week before you'll have to reflash the eMMC to due
file system corruption...
Any experiences with broken eMMCs? How important is using a backup
battery
in a daily unclean power down situation. What's your feeling: days,
weeks,
months, years, decades?
Really anything then a week of unclean power down's, start looking
at read only root* and other file systems.
* We have a beagleboard-xm running on the roof of this building as a
webcam taking pictures all day, it's been running (off/on) for over 3
years on the same microSD card running Debian Squeeze, on a read only
rootfs.. It's powered by a solar array, so power is variable all day
long..
https://wiki.debian.org/ReadonlyRoot
Hmmm, I guess I've some work to do in shutting down some bbb's properly
otherwise I can answer my own question. Thinking aloud a battery and
bringing the power button external.
Regards,
--
Robert Nelson
http://www.rcn-ee.com/
--
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