Re: [gentoo-user] LVM and moving things around
Rsync has a bwlimit argument which helps here. Note that rsync copies the whole file on what it considers local storage (which can be mounted network shares) ... this can cause a real slowdown. BillK On 3 April 2022 3:51:22 am AWST, Dale wrote: >Dale wrote: >> Howdy, >> >> I sort of started this on another thread but wanted to nail a few things >> down first. I'm wanting to encrypt some parts of my data on /home. >> <<< SNIP >>> >> > > >OK. I looked into another hard drive but budget right now says no. So, >I went back to plan A. I managed to remove the 6TB drive and it is now >on it's own LVM thingy. I've moved enough over to mount it and use it >as my /home directory. I'm in the process of copying other non-critical >files over so I can move things around some more. Anyway, I'm using >rsync to copy things over. It works great, can restart if I need to >stop it etc etc but it has one thing that annoys me. While it is >copying things over, it makes my system slow to respond. Once the cache >in memory gets pretty full, it takes a while to switch desktops or for >programs to show up when I do get to a desktop. Seamonkey seems to be >hit hardest with this. I tried putting ionice in front of the command >but it is still slow. My CPU cores are a bit busy but nowhere near >100%. Most cores are switching from almost idle to around 40% at their >peak. If I added them all up, I'd say the total would average around >10%, 20% at the very most. I've got swapiness set pretty low and it >isn't using swap according to gkrellm. > >Anyone have a idea how to make rsync not cause this problem? Is there >something besides ionice I need to use? > >Thanks. > >Dale > >:-) :-) > -- Sent from my Android device with K-9 Mail. Please excuse my brevity.
Re: [gentoo-user] Java wants cups?
On Sat, 2 Apr 2022 12:06:22 -0400, Walter Dnes wrote: > You can't. cups is more unwanted/unnecessary bloatware weasling its > way in just like systemd and sphinx. I also have cups as a requirement > for app-text/ghostscript-gpl as well as for google-chrome, which I use > 99% for Netflix. Pale Moon is my "daily driver" browser. google-chrome is Google's binary version, o Gentoo devs have no control over the dependencies. With chromium, there is a cups USE flag, but you have to put up with long compile times. -- Neil Bothwick Oops. My brain just hit a bad sector. pgpI61VQEbB0G.pgp Description: OpenPGP digital signature
Re: [gentoo-user] systemd DNS does not resolve 'local' addresses
On Sat, Apr 2, 2022 at 5:22 PM Alexander Puchmayr wrote: > > ## portage.local maps to 192.168.1.6 > ## DNS-Server provided via DHCP is 192.168.1.1 (openwrt-router) > > buildhost-desktop ~ # ping portage.local > ping: portage.local: Temporary failure in name resolution > >Protocols: +LLMNR +mDNS -DNSOverTLS DNSSEC=no/unsupported So, I haven't really used resolved much, but I see you have mDNS enabled. Does the portage.local host broadcast itself using mDNS? If it is running Gentoo then the answer is no unless you have it running avahi, which is usually not installed by default. Many desktop-oriented linux distros provide avahi by default. A resolver that supports mDNS will not use DNS to resolve the .local TLD, in accordance with RFC 6762. If you intend to use .local for DNS and not mDNS then you probably do not want mDNS enabled. You can either disable it for resolved globally by setting MulticastDNS=no in the [Resolve] section of /etc/systemd/resolved.conf, or by disabling it for a specific network in your network manager (the setting has the same name for systemd-networkd). This is one of those reasons why it is best to not use the .local TLD for DNS on your home network. You can disable it on systemd-resolved, but some IoT device in your home might have it permanently enabled. It allows a form of name resolution to work without any DNS server as devices discover and broadcast on their own. -- Rich
[gentoo-user] systemd DNS does not resolve 'local' addresses
Hi, After upgrading systemd from 249.9 to 249.11, some of my host names defined in my router's host file do no longer resolve, but nslookup can still resolve them properly. With 249.9 everything works fine, and all other machines which did not yet get the update work fine. Any ideas? Thanks, Alex ## portage.local maps to 192.168.1.6 ## DNS-Server provided via DHCP is 192.168.1.1 (openwrt-router) buildhost-desktop ~ # ping portage ping: portage: Name or service not known buildhost-desktop ~ # ping portage.local ping: portage.local: Temporary failure in name resolution buildhost-desktop ~ # host portage portage has address 192.168.1.6 buildhost-desktop ~ # nslookup portage Server: 192.168.1.1 Address:192.168.1.1#53 Name: portage Address: 192.168.1.6 buildhost-desktop ~ # dig portage ; <<>> DiG 9.16.27 <<>> portage ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 40446 ;; flags: qr aa rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 1 ;; OPT PSEUDOSECTION: ; EDNS: version: 0, flags:; udp: 4096 ;; QUESTION SECTION: ;portage. IN A ;; ANSWER SECTION: portage.0 IN A 192.168.1.6 ;; Query time: 3 msec ;; SERVER: 192.168.1.1#53(192.168.1.1) ;; WHEN: Sat Apr 02 22:49:50 CEST 2022 ;; MSG SIZE rcvd: 52 buildhost-desktop ~ # resolvectl Global Protocols: +LLMNR +mDNS -DNSOverTLS DNSSEC=no/unsupported resolv.conf mode: uplink Fallback DNS Servers: 1.1.1.1#cloudflare-dns.com 8.8.8.8#dns.google 1.0.0.1#cloudflare-dns.com 8.8.4.4#dns.google 2606:4700:4700::#cloudflare-dns.com 2001:4860:4860::#dns.google 2606:4700:4700::1001#cloudflare-dns.com 2001:4860:4860::8844#dns.google Link 2 (enp3s0) Current Scopes: DNS LLMNR/IPv4 LLMNR/IPv6 Protocols: +DefaultRoute +LLMNR -mDNS -DNSOverTLS DNSSEC=no/ unsupported Current DNS Server: 192.168.1.1 DNS Servers: 192.168.1.1 buildhost-desktop ~ #
Re: [gentoo-user] LVM and moving things around
Rich Freeman wrote: > On Mon, Mar 28, 2022 at 9:32 AM Dale wrote: >> Time for plan B. I expect a drive purchase soon. $$$ Heck, it would >> be faster to do backups, redo the whole thing and copy it all back. I >> could copy it in chunks. First chunk gets me running and then copy >> remaining stuff. Hm. > If you start having large volumes of data it probably makes sense to > split that off and handle it differently. I am storing my large stuff > on lizardfs for this reason (though if starting today I'd take another > look at moosefs or ceph). When you don't care so much about IOPS, or > efficiency of small files, there are a lot of constraints you can > avoid with ext4. Distributed filesystems also have scaling benefits > because you don't have to try to cram your 10 hard drives into a > single host. > > Ext4 can be grown online, but it can't be shrunk online. When you > start getting to large filesystems you need to consider > backup/restoration time and if you want availability you really want > solutions that feature RAID and which can do all the operations you > need online. Simply having a backup might not be satisfactory if your > backup requires dozens of hours to restore, except as a last resort. > That is one of the reasons I started using LVM. At the time, the software you mention, except RAID, either wasn't wide spread or wasn't stable enough for general use. One day, I just may switch to the new ways but I still have trouble remembering how to deal with LVM. I may try to plan to buy two hard drives, maybe the price on 10TB drives will drop, so I can learn the new way. Most of what I have are large files. At least the things that I'm going to have on the new setup anyway. My current plan, 6TB drive is a regular /home on LVM, already done. Once I get space freed up, I'm going to remove one 8TB drive, reset LVM on it, add encryption, still trying to figure out the steps on that, and then add the 2nd 8TB drive to it. I'll have 15TBs or so of space just for large files and it's encrypted. It will mount somewhere within /home. I'll just have to unlock and mount it manually. I'm getting there. Trying to get rsync to cooperate at the moment. Dale :-) :-)
Re: [gentoo-user] LVM and moving things around
Dale wrote: > Howdy, > > I sort of started this on another thread but wanted to nail a few things > down first. I'm wanting to encrypt some parts of my data on /home. > <<< SNIP >>> > OK. I looked into another hard drive but budget right now says no. So, I went back to plan A. I managed to remove the 6TB drive and it is now on it's own LVM thingy. I've moved enough over to mount it and use it as my /home directory. I'm in the process of copying other non-critical files over so I can move things around some more. Anyway, I'm using rsync to copy things over. It works great, can restart if I need to stop it etc etc but it has one thing that annoys me. While it is copying things over, it makes my system slow to respond. Once the cache in memory gets pretty full, it takes a while to switch desktops or for programs to show up when I do get to a desktop. Seamonkey seems to be hit hardest with this. I tried putting ionice in front of the command but it is still slow. My CPU cores are a bit busy but nowhere near 100%. Most cores are switching from almost idle to around 40% at their peak. If I added them all up, I'd say the total would average around 10%, 20% at the very most. I've got swapiness set pretty low and it isn't using swap according to gkrellm. Anyone have a idea how to make rsync not cause this problem? Is there something besides ionice I need to use? Thanks. Dale :-) :-)
[gentoo-user] Gnumeric tabs very faint fonts on white background
Sometimes I swear developers want fonts to be foreground #FEFEFE on background #FF. After a recent update Gnumeric spreadsheet tabs at the bottom have gotten very faint. They're faint but tolerable when I first open a spreadsheet. But after right-clicking a graph to get at "Properties", it goes super-faint. See attached screen-snippet. Can you read the names of all 4 tabs? I don't see any knobs to turn in properties. Any ideas? I'm running plain ICEWM; no DE. -- Walter Dnes I don't run "desktop environments"; I run useful applications
Re: [gentoo-user] Java wants cups?
On Sat, Apr 02, 2022 at 09:32:08AM +0200, Matthias Hanft wrote > Hi, > > after "emerge --sync" today, and "emerge -auv @world", I got the > message: > > emerge: there are no ebuilds built with USE flags to satisfy > ">=app-text/ghostscript-gpl-9.09[cups]". > !!! One of the following packages is required to complete your request: > - app-text/ghostscript-gpl-9.55.0-r1::gentoo (Change USE: +cups) > (dependency required by > "net-print/cups-filters-1.28.10-r3::gentoo[postscript]" [ebuild]) > (dependency required by "net-print/cups-2.3.3_p2-r3::gentoo" [ebuild]) > (dependency required by "dev-java/openjdk-11.0.14_p9-r1::gentoo" [ebuild]) > (dependency required by "virtual/jdk-11-r2::gentoo" [ebuild]) > (dependency required by "@selected" [set]) > (dependency required by "@world" [argument]) > > But: > > - the cups USE flag is globally disabled (and nowhere locally > enabled); > - since this is a virtual server, no printers at all are used/ > connected/configured. > > I could run emerge with USE="cups", but in this case ~30 new > packages would be installed (many, many "libXsomething" among > them). And I would have a completely useless printing system. > > How do I get rid of all those cups things? You can't. cups is more unwanted/unnecessary bloatware weasling its way in just like systemd and sphinx. I also have cups as a requirement for app-text/ghostscript-gpl as well as for google-chrome, which I use 99% for Netflix. Pale Moon is my "daily driver" browser. -- Walter Dnes I don't run "desktop environments"; I run useful applications
Re: [gentoo-user] Java wants cups?
On Saturday, 2 April 2022 08:32:08 BST Matthias Hanft wrote: > Hi, > > after "emerge --sync" today, and "emerge -auv @world", I got the > message: > > emerge: there are no ebuilds built with USE flags to satisfy > ">=app-text/ghostscript-gpl-9.09[cups]". !!! One of the following packages > is required to complete your request: - > app-text/ghostscript-gpl-9.55.0-r1::gentoo (Change USE: +cups) > (dependency required by > "net-print/cups-filters-1.28.10-r3::gentoo[postscript]" [ebuild]) > (dependency required by "net-print/cups-2.3.3_p2-r3::gentoo" [ebuild]) > (dependency required by "dev-java/openjdk-11.0.14_p9-r1::gentoo" [ebuild]) > (dependency required by "virtual/jdk-11-r2::gentoo" [ebuild]) > (dependency required by "@selected" [set]) > (dependency required by "@world" [argument]) > > But: > > - the cups USE flag is globally disabled (and nowhere locally > enabled); > - since this is a virtual server, no printers at all are used/ > connected/configured. > > I could run emerge with USE="cups", but in this case ~30 new > packages would be installed (many, many "libXsomething" among > them). And I would have a completely useless printing system. > > How do I get rid of all those cups things? > > Thanks, > > -Matt Did you try running emerge with '--tree' to see the dependency tree with all its dependencies? (The option '--deep' may show more dependencies too). I have cups set here but don't have java. This is what I get when I set USE="-cups" ~ $ USE="-cups" emerge -upv dev-java/openjdk app-text/ghostscript-gpl These are the packages that would be merged, in order: Calculating dependencies... done! [ebuild N ] app-eselect/eselect-java-0.4.3::gentoo 14 KiB [ebuild N ] app-crypt/p11-kit-0.23.22::gentoo USE="asn1 libffi trust - debug -systemd" ABI_X86="(64) -32 (-x32)" 811 KiB [ebuild N ] sys-apps/baselayout-java-0.1.0-r1::gentoo 71 KiB [ebuild N ] dev-java/java-config-2.3.1:2::gentoo USE="-test" PYTHON_TARGETS="python3_9 -python3_8 -python3_10" 26 KiB [ebuild N ] dev-java/openjdk-bin-17.0.2_p8:17::gentoo USE="alsa -cups (- gentoo-vm) -headless-awt (-selinux) -source" 187,541 KiB [ebuild N ] dev-java/openjdk-17.0.2_p8:17::gentoo USE="alsa jbootstrap (system-bootstrap) (-big-endian) -cups -debug -doc -examples (-gentoo-vm) - headless-awt (-javafx) (-selinux) -source -systemtap" 102,288 KiB which doesn't appear to disagree with the "-cups" flag. signature.asc Description: This is a digitally signed message part.
[gentoo-user] Java wants cups?
Hi, after "emerge --sync" today, and "emerge -auv @world", I got the message: emerge: there are no ebuilds built with USE flags to satisfy ">=app-text/ghostscript-gpl-9.09[cups]". !!! One of the following packages is required to complete your request: - app-text/ghostscript-gpl-9.55.0-r1::gentoo (Change USE: +cups) (dependency required by "net-print/cups-filters-1.28.10-r3::gentoo[postscript]" [ebuild]) (dependency required by "net-print/cups-2.3.3_p2-r3::gentoo" [ebuild]) (dependency required by "dev-java/openjdk-11.0.14_p9-r1::gentoo" [ebuild]) (dependency required by "virtual/jdk-11-r2::gentoo" [ebuild]) (dependency required by "@selected" [set]) (dependency required by "@world" [argument]) But: - the cups USE flag is globally disabled (and nowhere locally enabled); - since this is a virtual server, no printers at all are used/ connected/configured. I could run emerge with USE="cups", but in this case ~30 new packages would be installed (many, many "libXsomething" among them). And I would have a completely useless printing system. How do I get rid of all those cups things? Thanks, -Matt
