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by Amarand
Fri May 01, 2015 12:43 pm
Forum: Advanced users
Topic: Remove NOOBS and migrate Raspbian to new microSD card
Replies: 23
Views: 6372

Re: Remove NOOBS and migrate Raspbian to new microSD card

electronicsguy wrote:...the USB drives easily come in sizes of 64GB, 128GB. and are much more reliable than micro-sd cards.
Are microSD cards really less reliable than USB drives?
by Amarand
Fri May 01, 2015 12:41 pm
Forum: Advanced users
Topic: Remove NOOBS and migrate Raspbian to new microSD card
Replies: 23
Views: 6372

Re: Remove NOOBS and migrate Raspbian to new microSD card

you could also consider buying a usb flash drive and transferring the root partition on that. the RPi will then use that for all its need, except initial boot. the USB drives easily come in sizes of 64GB, 128GB. and are much more reliable than micro-sd cards. I found my way to this (great!) post, a...
by Amarand
Thu Apr 30, 2015 9:19 pm
Forum: Beginners
Topic: How can I test SD card speed?
Replies: 2
Views: 34595

Re: How can I test SD card speed?

http://elinux.org/RPi_SD_cards#SD_card_performance On this page is the 'official' way. Write : dd if=/dev/zero of=~/test.tmp bs=500K count=1024 Read dd if=~/test.tmp of=/dev/null bs=500K count=1024 With most operating systems and uses, read speed is far more important than write speed. But you need...
by Amarand
Wed Apr 29, 2015 5:44 pm
Forum: Networking and servers
Topic: Need help with bitorrent speed issues
Replies: 18
Views: 3482

Re: Need help with bitorrent speed issues

I wouldn't get anything slower than a class 10 card. Agreed. I may decide to eventually use this in a GoPro or something, and I'm a fan of the class 10. You can get SD cards for super cheap, the best value for me was the 16GB card. If I didn't need the bundled full size SD card adapter I would have...
by Amarand
Wed Apr 29, 2015 5:30 pm
Forum: Networking and servers
Topic: Need help with bitorrent speed issues
Replies: 18
Views: 3482

Re: Need help with bitorrent speed issues

FWIW, I'm using a "SanDisk Ultra 32GB UHS-I/Class 10 Micro SDHC Memory Card Up to 48MB/s". Good to hear I'll get at least reasonable speeds out of this card line, as I picked up the "SanDisk Ultra 64GB UHS-I/Class 10 Micro SDXC Memory Card Up to 48MB/s With Adapter- SDSDQUAN-064G-G4A [Newest Versio...
by Amarand
Wed Apr 29, 2015 2:26 pm
Forum: Camera board
Topic: Long exposure imaging for capturing lighting flashes
Replies: 18
Views: 5517

Re: Long exposure imaging for capturing lighting flashes

DougieLawson wrote:git clone http://github.com/raspberrypi/userland
cd userland
./buildme
Awesome, thank you! So much to learn....
by Amarand
Wed Apr 29, 2015 1:55 pm
Forum: Networking and servers
Topic: Need help with bitorrent speed issues
Replies: 18
Views: 3482

Re: Need help with bitorrent speed issues

I would think some type of SSD would work better but from what I've been reading you're still limited in the I/O category on the Pi. I'm using a Kingston Class 10 16GB microSD card, which works great, but if I could get better results from a better quality chip. I would take that into consideration...
by Amarand
Wed Apr 29, 2015 1:35 pm
Forum: Camera board
Topic: Long exposure imaging for capturing lighting flashes
Replies: 18
Views: 5517

Re: Long exposure imaging for capturing lighting flashes

The only really supported distro is still "raspbian". raspistill is part of the package "libraspberrypi-bin" and part of the "userland" which is updated with rpi-update. If you have a standard raspbian installation(with noobs or from the Raspbian image) you can get the last "stable" version with su...
by Amarand
Wed Apr 29, 2015 1:26 pm
Forum: Camera board
Topic: New version of Raspistill
Replies: 150
Views: 28703

Re: New version of Raspistill

If you're on a regular Raspbian installation then rpi-update should have got you to V1.3.12 of raspivid The version /usr/bin/raspivid should be a symbolic link to /opt/vc/bin/raspivid root@eagle /usr/bin # ls -la raspi* -rwxr-xr-x 1 root root 29575 Jan 31 20:15 raspi-config lrwxrwxrwx 1 root root 2...
by Amarand
Tue Apr 28, 2015 8:33 pm
Forum: Camera board
Topic: New version of Raspistill
Replies: 150
Views: 28703

Re: New version of Raspistill

Hope it's not bad form to post/query in an older post however, I've noticed that the version of raspistill I have lacks the -tl option: /opt/vc/bin/raspistill raspistill Camera App v1.3.8 sudo /opt/vc/bin/raspistill --timelapse 30 -o file%d.jpg Invalid command line option (--timelapse) sudo /usr/bin...
by Amarand
Tue Apr 28, 2015 7:59 pm
Forum: Camera board
Topic: Long exposure imaging for capturing lighting flashes
Replies: 18
Views: 5517

Re: Long exposure imaging for capturing lighting flashes

I guess you are not using the latest firmware. The "-bm" switch is not yet released with the normal package manager. You can just skip some parameter and start with a minimum of paramters: raspistill -v -ISO 800 -ss 6000000 -tl 60000 -t 3600000 -o %04d.jpg So here's a silly question (perhaps).... I...
by Amarand
Tue Apr 28, 2015 7:56 pm
Forum: Camera board
Topic: Long exposure imaging for capturing lighting flashes
Replies: 18
Views: 5517

Re: Long exposure imaging for capturing lighting flashes

yv1hx wrote:
nic32seajunk wrote:[snip...]
And hello to yv1hx.....de wa4chq/qrp (cw)
nic32seajunk
wa4chq 73's & DX to wa4chq
Useful post, thanks everyone!

73/DX de WB1HIH!

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