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Photobooth script - needs help with inotify
by Andrew Greig 14 Jun '16

14 Jun '16

Hi all, 4 years ago one of the members of this list, responding to a question I posed on the "Linux Answers" site, supplied me with this script which met my need for a photobooth running with Cheese. #! /bin/bash inotifywait -m -e close_write ~/Pictures/Webcam --format "%w%f" | \ while read filename; do lpr -P HP "$filename"; mv "$filename" ~/Pictures/Webcam/printed; done I know that 4 years in Linux is a long time, so I was not surprised to find that the script failed because the inotifywait command is no longer recognised. I am not skilled in scripting but I did read the man file. My questions are, do I substitute in_add_watch instead of inotifywait? Do I keep the rest of the line the same? Many thanks Andrew Greig

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Best Database For Storing Images
by David Zuccaro 14 Jun '16

14 Jun '16

Is there a database that can be used to store images? If so, what is the best one to use for a small web project I have in mind?

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Epson V350 scanner contrariness.
by Erik Christiansen 10 Jun '16

10 Jun '16

My Epson V350 scanner worked fine with ubuntu 10.04 and iscan, but it's hiding from the latest iscan on debian 7, giving "Could not send command to scanner. Check the scanner's status." It has power, and the steady green status LED indicates "Ready to scan". The iscan version is from the latest iscan-bundle-1.0.0.x86.deb downloaded from http://support.epson.net/linux/en/iscan_c.html today. The USB connection & scanner interface are OK: $ lsusb Bus 001 Device 002: ID 04b8:012f Seiko Epson Corp. Perfection V350 (GT-F700) Trying to probe a bit more: # sane-find-scanner ... found USB scanner (vendor=0x04b8 [EPSON], product=0x012f [EPSON Scanner]) at libusb:001:002 ... Try scanimage -L and read the backend's manpage. ... The latter doesn't work, because the V350 isn't supported by Xsane, but that wasn't an issue for iscan, AFAIR. (It is, after all, specifically for Epson scanners.) $ groups erik cdrom floppy audio dip video plugdev scanner bluetooth netdev +++++++ It would be damned convenient if I could manage to scan a few documents in the next few days, so any ideas on this or alternative apps would hit a dry spot. The debian gui "Simple Scan" clicky-thing says "No scanners detected". Multiple google hits suggest it is also a Sane front-end. Erik (Back to the intertubes, for more inspiration. There has to be something out there.)

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free PowerEdge Tower server (workstation)
by Russell Coker 09 Jun '16

09 Jun '16

http://www.cpubenchmark.net/midlow_range_cpus.html I have a tower server with an AMD Athlon 1212 CPU and 8G of ECC RAM to give away. The above URL has the relative performance of the CPU (it beats the i3 and Core 2 Duo systems but doesn't compete with the quad core CPUs). The CPU lacks the feature needed for KVM, if you run QEMU it will be in software emulation mode which is really slow. It used to be a Xen server. It has PCIe*8 slots so you can't install a decent video card without using a saw. All RAM slots are full and I think it uses unbuffered DIMMs so expanding the RAM probably costs more than it's worth. If you need a 64bit dual-core server with 8G of RAM then this will probably work quite well. It can work as a desktop system (and did so well for a few years), but the inbuilt graphics is slow. It makes little noise if you have a SSD and the CPU is mostly idle. I can bring it to a LUV meeting. -- My Main Blog http://etbe.coker.com.au/ My Documents Blog http://doc.coker.com.au/

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MySQL Galera (Percona XtraDB Cluster) aborts on startup after successful SST
by Chris Samuel 08 Jun '16

08 Jun '16

Hi folks, Anybody got any clues about what to do when the sole message you get regarding a problem when starting up Percona XtraDB Cluster (basically MySQL with Galera clustering built in) is just this? Jun 8 11:43:58 hostname mysqld: 160608 11:43:58 [ERROR] Aborting It's preceded by lots of log messages about a successful SST and followed by lots of log messages about it successfully shutting down but it seems to be missing the bit where it says *WHY* it's aborting.. :-( The version information is right before that abort message, and says: Jun 8 11:43:58 hostname mysqld: 160608 11:43:58 Percona XtraDB (http://www.percona.com) 5.5.41-37.0 started; log sequence number 876619301144 There's more context over on my post on the Percona forums here: https://www.percona.com/forums/questions-discussions/percona-xtradb-cluster… Anyone got any ideas at all about how to get more info out? cheers! Chris (who's been troubleshooting this for days now) -- Chris Samuel : http://www.csamuel.org/ : Melbourne, VIC

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thanks
by Russell Coker 07 Jun '16

07 Jun '16

Thanks to the talented and generous people who volunteered to give talks at short notice. We ended up not having enough time for all the talks that were offered. This is a tribute to the skill and generosity of the general LUV membership. -- My Main Blog http://etbe.coker.com.au/ My Documents Blog http://doc.coker.com.au/

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new Linux server offerings
by Russell Coker 31 May '16

31 May '16

https://www.hetzner.de/gb/hosting/produkte_rootserver/px61nvme Hetzner offers servers with 64G of ECC RAM and 2*512G NVMe storage devices for E59 per month. They have an IPv6 /64 and a single IPv4 address (you can rent another 2 for a few Euro per month). https://en.wikipedia.org/wiki/NVM_Express NVMe is SSD storage directly connected to PCIe to avoid the latency of SATA. https://www.hetzner.de/gb/hosting/produkte_rootserver/px61 The same but with 2*4TB SATA disks instead. https://www.linode.com/pricing For cheaper hosting Linode is offering a VM with 1G of RAM and 24G of storage for $US10 per month. -- My Main Blog http://etbe.coker.com.au/ My Documents Blog http://doc.coker.com.au/

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Ubuntu Kernel upgrade on a non-pae processor
by Michele Bert 31 May '16

31 May '16

Hi. I have recently installed the latest Lubuntu on a non-pae intel processor, passing the option "forcepae" to the kernel at installation time. The installation completed succesfully, and automatically managed to configure grub to pass such option at the boot time. Now I have a new kernel to install, but if I run: apt-get dist-upgrade The installation (pre- or post-, I do not know) script gives an error notifying that the processor is non-pae, interrupting the upgrade. Moreover now I have an inconsistent installation state, since the generic linux-generic meta-package is installed, but the actual linux-image-4.4.0xxxx, which is a dependency for the former, is not. The ps works normally, but I can not install anything, neither upgrade any other ackage. Any hint? By the way do anyone have suggestion about a nice distribution I could install on that laptop? -- Mick

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hardware library
by Russell Coker 27 May '16

27 May '16

I've just started using BOINC and will try using video cards soon. Donations of old PCIe video cards to the hardware library will be good, especially if other people also start using BOINC. I'll probably give a talk about BOINC at a future LUV meeting. -- My Main Blog http://etbe.coker.com.au/ My Documents Blog http://doc.coker.com.au/

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Anyone for Telstra Air
by MikeH 22 May '16

22 May '16

So far seems good for me and to me...

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