Re: [gentoo-user] newuse vs changed-use (and python3_6)
On Thu, Jul 19 2018, Roger J. H. Welsh wrote: >> emerge --pretend --newuse ... @world >> shows 15 rebuilds while --changed-use shows none. > --changed-use prevents your system from remerging packages > due to USE flag changes upstream (not made by you). > >>eselect python show >> indicates python3.4, which I realize has end of life next year. >> >> Any advice would be appreciated. > Note that, portage will want to use the new python targets immediately. > > Set for portage, for your next upgrade: > PYTHON_TARGETS="python2_7 python3_4 python3_6" > PYTHON_SINGLE_TARGET="python3_4" > > Set for portage, for your next upgrade after that: > PYTHON_TARGETS="python2_7 python3_6" > PYTHON_SINGLE_TARGET="python3_6" > > Migrate via, > `emerge --ask --depclean && emerge -1vUD @world && emerge --ask --depclean` > > And you should be good to go. > > NOTES: > `man emerge` > `/changed-use` > > "Unlike --newuse, the --changed-use option does not trigger > reinstallation when flags that the user has not enabled are added or > removed." > `emerge --newuse @world` should fix you up here. > > From the news item, > `eselect news read` > `2018-05-22-python3-6` > On *2018-06-22*, Python 3.6 will replace Python 3.5 in the default Python > targets for Gentoo systems. The new default targets will be: > PYTHON_TARGETS="python2_7 python3_6" > PYTHON_SINGLE_TARGET="python3_6" > > Hope this helps. > -- > > Roger Welsh > fpr: 2FCB 9E31 EA77 CDEC A3AE 5DD7 D54C C777 553A 180D Thank you. allan
Re: [gentoo-user] newuse vs changed-use (and python3_6)
> emerge --pretend --newuse ... @world > shows 15 rebuilds while --changed-use shows none. --changed-use prevents your system from remerging packages due to USE flag changes upstream (not made by you). >eselect python show > indicates python3.4, which I realize has end of life next year. > > Any advice would be appreciated. Note that, portage will want to use the new python targets immediately. Set for portage, for your next upgrade: PYTHON_TARGETS="python2_7 python3_4 python3_6" PYTHON_SINGLE_TARGET="python3_4" Set for portage, for your next upgrade after that: PYTHON_TARGETS="python2_7 python3_6" PYTHON_SINGLE_TARGET="python3_6" Migrate via, `emerge --ask --depclean && emerge -1vUD @world && emerge --ask --depclean` And you should be good to go. NOTES: `man emerge` `/changed-use` "Unlike --newuse, the --changed-use option does not trigger reinstallation when flags that the user has not enabled are added or removed." `emerge --newuse @world` should fix you up here. From the news item, `eselect news read` `2018-05-22-python3-6` On *2018-06-22*, Python 3.6 will replace Python 3.5 in the default Python targets for Gentoo systems. The new default targets will be: PYTHON_TARGETS="python2_7 python3_6" PYTHON_SINGLE_TARGET="python3_6" Hope this helps. -- Roger Welsh fpr: 2FCB 9E31 EA77 CDEC A3AE 5DD7 D54C C777 553A 180D signature.asc Description: PGP signature
[gentoo-user] newuse vs changed-use (and python3_6)
I realize just now that one of my machines uses emerge ... --newuse ... and the other uses emerge ... --changed-use ... Both run gentoo stable. I imagine this discrepancy has been there for a long while and to date has caused no particular difficulty. However, today the --changed-use machine can't --depclean and running emerge --pretend --newuse ... @world shows 15 rebuilds while --changed-use shows none. It looks like all the rebuilds are caused by "negative" uses, especially PYTHON_TARGETS="-python3_6%" My first thought was to run an emerge --newuse ... @world and then proceed with --depclean'ing but am cautious about changing settings involving python (I have no personal python scripts). eselect python show indicates python3.4, which I realize has end of life next year. Any advice would be appreciated. Thanks in advance, allan
Re: [gentoo-user] scanner problem
> On 2018-07-18, at 04:16, Philip Webb wrote: > > (3) I can scan without problems using Mint Xfce (on another partition), > so it's not a hardware problem. > > (4) 'lsusb' lists "Bus 001 Device 004: ID 0418: 013b Seiko Epson Corp". > > (5) the 'epkowa' driver is the latest version : a download from > 'support.epson.net/linux/en/iscan.php?model=perfection-v550=1.0.1' > gets the same compressed files as are already installed (same sizes). > > (6) the output from 'strace' is at > http://chass.utoronto.ca/~purslow/test/xsane-trace.d1 . I think you should look at the /etc/sane.d/epkowa.conf file and make modifications if necessary. You should compare it to the Mint partition. And you should do the same for other configuration files like /etc/sane.d/dll.conf. > > (9) Vuescan is a possible alternative : does anyone have experience ? You want this to work with SANE because major apps like GIMP only support SANE IIRC. Andrew
Re: [gentoo-user] scanner problem
Thanks for the replies so far, which I've followed up with ideas of my own. (1) In /etc/sane.d/dll.conf (at the end) it lists # Add support for the Epson-specific backend. Needs media-gfx/iscan installed epkowa I've installed 'iscan', but it makes no difference. (2) The 2 pkgs which mb relevant & which have been updated > 180626 are the kernel & 'gtk+:2' : syslog reports use of 'ehci-pci', but that is enabled in my kernel 4.14.52 ; might 'gtk' be the problem ? (3) I can scan without problems using Mint Xfce (on another partition), so it's not a hardware problem. (4) 'lsusb' lists "Bus 001 Device 004: ID 0418: 013b Seiko Epson Corp". (5) the 'epkowa' driver is the latest version : a download from 'support.epson.net/linux/en/iscan.php?model=perfection-v550=1.0.1' gets the same compressed files as are already installed (same sizes). (6) the output from 'strace' is at http://chass.utoronto.ca/~purslow/test/xsane-trace.d1 . (7) When the scanner is switched on (already connected), syslog says : usb1-3: new high-speed USB device number 3 using ehci-pci New USB device found, idVendor 04b8, idProduct 013b strings: MFr=1, Product=2, SerNo=0 Product: EPSON Scanner; Manufacturer: EPSON (8) Users at Ubuntu have been having problems starting Autumn 2017 : https://bugs.launchpad.net/ubuntu/+source/sane-backends/+bug1728012 : see esp # 20 & # 144 . (9) Vuescan is a possible alternative : does anyone have experience ? Further thoughts from anyone are very welcome. -- ,, SUPPORT ___//___, Philip Webb ELECTRIC /] [] [] [] [] []| Cities Centre, University of Toronto TRANSIT`-O--O---' purslowatchassdotutorontodotca
