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Netinstall images once were around 300 or 400 MB, not they are 700MB Is there any way to minimize them again? (I realized that OpenSuse manage to ship their rolling-release distro on a netinstall of 150 MB)
Links? https://download-ib01.fedoraproject.org/pub/fedora/linux/releases/32/Server/x86_64/iso/ and https://download-ib01.fedoraproject.org/pub/fedora/linux/releases/32/Everything/x86_64/iso/
Metadata Update from @humaton: - Issue tagged with: low-trouble, medium-gain
Metadata Update from @humaton: - Issue untagged with: low-trouble - Issue tagged with: medium-trouble
@sgallagh Any thoughts here?
Maybe we should look at their kickstarts and see how are they different.
I'm taking a look at the contents. My quick scan of the package sizes on boot.iso shows:
These are the installed sizes, not the compressed RPMs. The first thing I notice quickly is that we probably don't need both glibc-all-langpacks and glibc-langpack-en. The former is a superset of the latter.
glibc-all-langpacks
glibc-langpack-en
Package,Installed Size in Bytes,Installed Size in MiB glibc-all-langpacks.x86_64,451094956,430.1976738 mesa-dri-drivers.x86_64,312393822,297.9219646 linux-firmware.noarch,277348390,264.5000362 netronome-firmware.noarch,146476424,139.6908035 iwl7260-firmware.noarch,115301273,109.9598627 llvm-libs.x86_64,74524799,71.07238674 glibc-langpack-en.x86_64,60960611,58.13656902 webkit2gtk3.x86_64,60669158,57.85861778 kernel-core.x86_64,41271872,39.35992432 libicu.x86_64,34031156,32.45463943 liquidio-firmware.noarch,25490699,24.30982494 webkit2gtk3-jsc.x86_64,24946002,23.7903614 mozjs68.x86_64,24277012,23.15236282 selinux-policy-targeted.noarch,23260407,22.18285275 kernel-modules.x86_64,20358120,19.41501617 google-noto-sans-cjk-ttc-fonts.noarch,20337247,19.39511013 iso-codes.noarch,19179680,18.29116821 gtk3.x86_64,18710649,17.84386539 systemd-udev.x86_64,17975875,17.1431303 python3-libs.x86_64,17278702,16.47825432 glibc.x86_64,17036924,16.24767685 mesa-vulkan-drivers.x86_64,14199353,13.54155827 gtk2.x86_64,13554947,12.92700481 systemd.x86_64,13171530,12.56134987 gdb-headless.x86_64,13147858,12.53877449 adwaita-cursor-theme.noarch,12038598,11.48090172 adwaita-icon-theme.noarch,11954243,11.40045452 guile.x86_64,11137550,10.62159538 iwl3160-firmware.noarch,10310380,9.832744598 librsvg2.x86_64,10237335,9.763083458 coreutils-common.x86_64,10136152,9.66658783 cracklib-dicts.x86_64,9815016,9.360328674 anaconda-core.x86_64,9349010,8.915910721 NetworkManager-libnm.x86_64,9269599,8.84017849 grub2-tools.x86_64,8449008,8.057601929 gnupg2.x86_64,8070910,7.697019577 glibc-common.x86_64,7892174,7.526563644 libtimezonemap.x86_64,6993060,6.669101715 rpm-ostree-libs.x86_64,6617519,6.310957909 fwupd.x86_64,6540368,6.237380981 NetworkManager.x86_64,6494702,6.19383049 mesa-libxatracker.x86_64,5760869,5.493992805 xkeyboard-config.noarch,5579858,5.321367264 grub2-tools-extra.x86_64,5429976,5.17842865 wpa_supplicant.x86_64,5247094,5.004018784 gettext.x86_64,4911905,4.684357643 nm-connection-editor.x86_64,4900087,4.67308712 btrfs-progs.x86_64,4837454,4.613355637 gsettings-desktop-schemas.x86_64,4579299,4.367159843 grub2-common.noarch,4440622,4.23490715 bfa-firmware.noarch,4403801,4.199791908 xorg-x11-server-Xorg.x86_64,3880733,3.700955391 openssl-libs.x86_64,3825124,3.647922516 hwdata.noarch,3729076,3.556324005 glib2.x86_64,3713518,3.54148674 coreutils.x86_64,3466722,3.306123734 python3-libdnf.x86_64,3385670,3.228826523 bind-libs-lite.x86_64,3214601,3.065682411 libqmi.x86_64,3193212,3.045284271 grub2-tools-minimal.x86_64,3156773,3.010533333 lvm2.x86_64,3090662,2.94748497 tigervnc-server-minimal.x86_64,2872312,2.739250183 mpfr.x86_64,2859796,2.727313995 rpm-ostree.x86_64,2784271,2.655287743 e2fsprogs.x86_64,2780444,2.651638031 grub2-tools-efi.x86_64,2733744,2.60710144 tzdata.noarch,2558635,2.440104485 gstreamer1-plugins-base.x86_64,2546636,2.428661346 xfsprogs.x86_64,2394284,2.283367157 udisks2.x86_64,2390473,2.279732704 sg3_utils.x86_64,2368427,2.258708 nss-tools.x86_64,2341224,2.232765198 parted.x86_64,2340302,2.23188591 jomolhari-fonts.noarch,2277871,2.172347069 yelp.x86_64,2238477,2.134778023 cryptsetup-libs.x86_64,2052301,1.957226753 tpm2-tss.x86_64,2047685,1.952824593 krb5-libs.x86_64,2037818,1.943414688 nss.x86_64,2028209,1.934250832 python3-setuptools.noarch,2003436,1.910625458 libstdc++.x86_64,2001964,1.909221649 gstreamer1.x86_64,1986640,1.894607544 gnutls.x86_64,1985552,1.893569946 anaconda-gui.x86_64,1980026,1.888299942 iptables-libs.x86_64,1932483,1.842959404 libdb.x86_64,1902101,1.813984871 flashrom.x86_64,1839517,1.754300117 kbd-misc.noarch,1807474,1.723741531 dnf.noarch,1807416,1.723686218 libdnf.x86_64,1788413,1.705563545 rsyslog.x86_64,1783933,1.701291084 util-linux.x86_64,1761911,1.680289268 ca-certificates.noarch,1740746,1.660104752 fedora-logos.x86_64,1740130,1.659517288 xorg-x11-drv-intel.x86_64,1731732,1.651508331 zenity.x86_64,1673204,1.595691681 strace.x86_64,1671737,1.594292641 systemd-libs.x86_64,1668120,1.590843201 p11-kit.x86_64,1640827,1.564814568 harfbuzz.x86_64,1639767,1.563803673 libxml2.x86_64,1634097,1.558396339 syslinux-nonlinux.noarch,1632622,1.55698967 libunistring.x86_64,1626439,1.551093102 dejavu-sans-fonts.noarch,1466391,1.398459435 iscsi-initiator-utils.x86_64,1451212,1.383983612 jfsutils.x86_64,1450792,1.383583069 alsa-lib.x86_64,1429369,1.363152504 vim-minimal.x86_64,1427980,1.36182785 python3-kickstart.noarch,1419666,1.353899002 yelp-xsl.noarch,1380867,1.316897392 python-pip-wheel.noarch,1353261,1.290570259 bash.x86_64,1344823,1.282523155 libX11.x86_64,1337071,1.275130272 python3-blivet.noarch,1305822,1.245328903 libepoxy.x86_64,1293479,1.233557701 libnma.x86_64,1283701,1.224232674 sqlite-libs.x86_64,1278219,1.219004631 python3-langtable.noarch,1254230,1.196126938 libX11-common.noarch,1247893,1.190083504 cairo.x86_64,1228209,1.171311378 libgcrypt.x86_64,1227131,1.170283318 kexec-tools.x86_64,1184555,1.12967968 flatpak-libs.x86_64,1168018,1.113908768 augeas-libs.x86_64,1155710,1.102170944 iwl6000g2b-firmware.noarch,1141756,1.088863373 iwl6000g2a-firmware.noarch,1123508,1.071460724 pam.x86_64,1116960,1.065216064 python3-gpg.x86_64,1113931,1.062327385 libsoup.x86_64,1096477,1.045681953 libxcb.x86_64,1094240,1.043548584 google-noto-sans-sinhala-vf-fonts.noarch,1074674,1.024888992 libudisks2.x86_64,1070711,1.021109581 reiserfs-utils.x86_64,1064078,1.014783859 sil-scheherazade-fonts.noarch,1054176,1.005340576 source-highlight.x86_64,1049147,1.000544548 iwl5000-firmware.noarch,1041028,0.9928016663 ntfsprogs.x86_64,1034892,0.9869499207 ostree-libs.x86_64,1028609,0.9809579849 nettle.x86_64,1014442,0.9674472809 gettext-libs.x86_64,999065,0.9527826309 libnl3-cli.x86_64,994144,0.9480895996 ipmitool.x86_64,987059,0.9413328171 libibverbs.x86_64,963930,0.9192752838 openssh.x86_64,957528,0.9131698608 libnl3.x86_64,953348,0.9091835022 gawk.x86_64,938137,0.8946771622 iwl6050-firmware.noarch,935556,0.8922157288 blivet-gui-runtime.noarch,924932,0.8820838928 systemd-pam.x86_64,922144,0.8794250488 openssh-clients.x86_64,917430,0.8749294281 device-mapper-persistent-data.x86_64,917193,0.8747034073 sil-padauk-fonts.noarch,916338,0.8738880157 mdadm.x86_64,910948,0.8687477112 zram-generator.x86_64,907962,0.8659000397 kernel-modules-extra.x86_64,906472,0.8644790649 boost-regex.x86_64,905479,0.8635320663 abattis-cantarell-fonts.noarch,903078,0.8612422943 device-mapper-multipath-libs.x86_64,886881,0.8457956314 gcr-base.x86_64,881167,0.8403463364 python3-dnf.noarch,877979,0.8373060226 libsolv.x86_64,873534,0.8330669403 smartmontools.x86_64,866854,0.8266963959 gobject-introspection.x86_64,863725,0.8237123489 colord-libs.x86_64,850431,0.8110342026 procps-ng.x86_64,832241,0.7936868668 libarchive.x86_64,830277,0.7918138504 freetype.x86_64,829528,0.7910995483 openssh-server.x86_64,815680,0.7778930664 libsepol.x86_64,791053,0.754406929 libevent.x86_64,781306,0.7451114655 gmp.x86_64,775882,0.739938736 tmux.x86_64,775790,0.7398509979 authselect-libs.x86_64,774547,0.7386655807 libglvnd.x86_64,771242,0.7355136871 nss-softokn-freebl.x86_64,770972,0.7352561951 libzstd.x86_64,764921,0.7294855118 rpm-libs.x86_64,764232,0.7288284302 libbrotli.x86_64,751627,0.7168073654 hunspell.x86_64,749218,0.714509964 pango.x86_64,747784,0.713142395 libwebp.x86_64,735156,0.7010993958 khmeros-base-fonts.noarch,733702,0.6997127533 atmel-firmware.noarch,728112,0.6943817139 elfutils-libs.x86_64,721749,0.6883134842 setup.noarch,720888,0.6874923706 pixman.x86_64,713469,0.6804170609 iproute.x86_64,712556,0.6795463562 iwl2030-firmware.noarch,709476,0.6766090393 metacity.x86_64,704869,0.6722154617 python3-gobject-base.x86_64,704420,0.671787262 iwl135-firmware.noarch,703312,0.6707305908 cups-libs.x86_64,702665,0.6701135635 iwl2000-firmware.noarch,697960,0.6656265259 libglvnd-glx.x86_64,694733,0.6625490189 iwl105-firmware.noarch,691764,0.6597175598 gdb-gdbserver.x86_64,689208,0.6572799683 xfsdump.x86_64,688614,0.6567134857 tigervnc-server-module.x86_64,681075,0.649523735 realmd.x86_64,677625,0.6462335587 iwl1000-firmware.noarch,674660,0.6434059143 ncurses-libs.x86_64,658786,0.6282672882 ntfs-3g.x86_64,658146,0.6276569366 quota.x86_64,640071,0.6104192734 libgnomekbd.x86_64,636339,0.6068601608 pcre2.x86_64,630219,0.601023674 libthai.x86_64,623039,0.5941762924 lldpad.x86_64,619929,0.5912103653 ipw2100-firmware.noarch,618666,0.5900058746 orc.x86_64,609349,0.581120491 libcurl.x86_64,608805,0.5806016922 anaconda-user-help.noarch,592616,0.5651626587 sil-abyssinica-fonts.noarch,589378,0.5620746613 rsync.x86_64,581423,0.5544881821 wget.x86_64,580640,0.5537414551 gdisk.x86_64,576054,0.5493679047 ethtool.x86_64,575003,0.548365593 xmlrpc-c.x86_64,568937,0.5425806046 python-setuptools-wheel.noarch,567318,0.5410366058 libmodulemd.x86_64,566602,0.540353775 ipw2200-firmware.noarch,564418,0.5382709503 tar.x86_64,558739,0.5328550339 kbd-legacy.noarch,557813,0.5319719315 syslinux.x86_64,555731,0.5299863815 bind-utils.x86_64,552634,0.5270328522 python3-libselinux.x86_64,552087,0.5265111923 lua-libs.x86_64,548208,0.5228118896 hunspell-en-US.noarch,542723,0.517580986 filesystem.x86_64,542641,0.5175027847 openldap.x86_64,538167,0.5132360458 mesa-libGL.x86_64,537548,0.5126457214 glib-networking.x86_64,536489,0.5116357803 e2fsprogs-libs.x86_64,522410,0.4982089996 xorg-x11-drv-ati.x86_64,515228,0.4913597107 json-glib.x86_64,514415,0.4905843735 isns-utils-libs.x86_64,514224,0.4904022217 pcre.x86_64,513943,0.4901342392 libwacom-data.noarch,512851,0.4890928268 libinput.x86_64,511485,0.4877901077 at-spi2-core.x86_64,510740,0.4870796204 libbabeltrace.x86_64,509365,0.4857683182 ostree.x86_64,502743,0.4794530869 xz.x86_64,500763,0.4775648117 libgtop2.x86_64,494258,0.4713611603 libssh.x86_64,483242,0.460855484 libjpeg-turbo.x86_64,480530,0.4582691193 libsecret.x86_64,473097,0.4511804581 gpgme.x86_64,472350,0.4504680634 libertas-sd8787-firmware.noarch,471869,0.450009346 fontconfig.x86_64,468883,0.4471616745 kbd.x86_64,459438,0.4381542206 iwl6000-firmware.noarch,456692,0.4355354309 nmap-ncat.x86_64,455010,0.4339313507 nfs-utils.x86_64,454295,0.4332494736 p11-kit-trust.x86_64,451445,0.4305315018 libmbim.x86_64,443633,0.423081398 chrony.x86_64,441565,0.4211091995 libXt.x86_64,438772,0.4184455872 device-mapper-libs.x86_64,423367,0.4037542343 python3-chardet.noarch,419258,0.3998355865 xorg-x11-drv-openchrome.x86_64,415249,0.3960123062 libdrm.x86_64,408713,0.3897790909 libxslt.x86_64,408408,0.3894882202 aajohan-comfortaa-fonts.noarch,406707,0.3878660202 lcms2.x86_64,391141,0.3730211258 dbus-broker.x86_64,390824,0.372718811 libpwquality.x86_64,390337,0.3722543716 readline.x86_64,386912,0.3689880371 libsmbios.x86_64,382332,0.3646202087 blivet-data.noarch,378523,0.3609876633 vulkan-loader.x86_64,378254,0.3607311249 python3-dbus.x86_64,362838,0.3460292816 libfdisk.x86_64,362586,0.3457889557 dbus-libs.x86_64,361585,0.3448343277 python3-urllib3.noarch,360642,0.3439350128 userspace-rcu.x86_64,358338,0.3417377472 rpm.x86_64,357951,0.3413686752 dbus-daemon.x86_64,357445,0.340886116 python3-rpm.x86_64,357076,0.3405342102 findutils.x86_64,354702,0.3382701874 smc-meera-fonts.noarch,347698,0.3315906525 openjpeg2.x86_64,345352,0.3293533325 dejavu-sans-mono-fonts.noarch,344131,0.3281888962 lohit-telugu-fonts.noarch,343156,0.3272590637 shadow-utils.x86_64,340478,0.3247051239 iwl100-firmware.noarch,339656,0.3239212036 iwl5150-firmware.noarch,339484,0.3237571716 python3-cairo.x86_64,334943,0.3194265366 yelp-libs.x86_64,332320,0.3169250488 dmraid.x86_64,330965,0.3156328201 plymouth.x86_64,327784,0.3125991821 ncurses-base.noarch,325081,0.3100214005 compat-readline5.x86_64,324083,0.3090696335 libpcap.x86_64,323721,0.3087244034 hfsplus-tools.x86_64,323660,0.3086662292 gdk-pixbuf2-modules.x86_64,319960,0.3051376343 ctags.x86_64,319460,0.3046607971 nss-softokn.x86_64,316070,0.3014278412 nspr.x86_64,312867,0.2983732224 libsemanage.x86_64,311500,0.2970695496 fuse-libs.x86_64,308975,0.2946615219 satyr.x86_64,305801,0.2916345596 libblockdev.x86_64,301909,0.2879228592 libmount.x86_64,301540,0.2875709534 dconf.x86_64,301415,0.2874517441 libksba.x86_64,300067,0.2861661911 efivar-libs.x86_64,297739,0.2839460373 libxkbcommon.x86_64,290640,0.2771759033 python3-hawkey.x86_64,290023,0.2765874863 plymouth-core-libs.x86_64,283902,0.2707500458 iputils.x86_64,282062,0.268995285 mesa-libEGL.x86_64,281549,0.2685060501 rtl-sdr.x86_64,280958,0.2679424286 python3-idna.noarch,274943,0.2622060776 at-spi2-atk.x86_64,274782,0.262052536 sg3_utils-libs.x86_64,272185,0.2595758438 python3-pyparted.x86_64,271962,0.2593631744 libgomp.x86_64,268872,0.2564163208 atk.x86_64,268832,0.2563781738 libreport.x86_64,268292,0.2558631897 device-mapper-multipath.x86_64,267197,0.2548189163 gdk-pixbuf2.x86_64,267095,0.2547216415 teamd.x86_64,266718,0.2543621063 system-storage-manager.noarch,266332,0.253993988 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xorg-x11-server-common.x86_64,6,0.000005722045898 anaconda.x86_64,0,0 anaconda-install-env-deps.x86_64,0,0 basesystem.noarch,0,0 cdparanoia-libs.x86_64,0,0 dbus.x86_64,0,0 device-mapper-event.x86_64,0,0 dmraid-events.x86_64,0,0 efi-filesystem.noarch,0,0 fedora-release-server.noarch,0,0 fedora-repos.noarch,0,0 fedora-repos-rawhide.noarch,0,0 flac-libs.x86_64,0,0 grub2-efi-ia32-cdboot.x86_64,0,0 grub2-efi-x64-cdboot.x86_64,0,0 kernel.x86_64,0,0 libasyncns.x86_64,0,0 libblockdev-plugins-all.x86_64,0,0 libmcpp.x86_64,0,0 libselinux-utils.x86_64,0,0 libtheora.x86_64,0,0 mcpp.x86_64,0,0 notification-daemon.x86_64,0,0 rmt.x86_64,0,0 sgpio.x86_64,0,0 shim-ia32.x86_64,0,0 shim-x64.x86_64,0,0 squashfs-tools.x86_64,0,0 thai-scalable-fonts-common.noarch,0,0 xorg-x11-drivers.x86_64,0,0
The firmware packages might be a good place to look, given how we install firmware in the lorax template - basically we install *-firmware, with a list of specific exceptions. If any of those -firmware packages up near the top of the list isn't actually needed in the installer environment, we could add it to the exceptions and save a chunk of space.
*-firmware
(I realized that OpenSuse manage to ship their rolling-release distro on a netinstall of 150 MB)
openSUSE's netinstall images are split into two: a base image to boot up YaST, and an image to run YaST itself. The latter is not embedded in the netinstall ISO. This allows the base netinstall ISO to be quite small, since most of the environment does not need to be included on the ISO itself, but fetched and loaded into RAM from the network directly.
This is also similar to how it works for Mageia's netinstall media, too...
that's how anaconda used to work long ago, but we combined the stages.
sadly, netronome-firmware, iwl7260-firmware and liquidio-firmware are all network firmwares, so we probably can't kick them out. (netronome and liquidio are for fairly specialized enterprise-level NICs). netronome seems to be extremely inefficiently laid out - it's 1.7M as an RPM but 140M(!) expanded. It contains a ton of 5M-sized files which I guess are extremely compressible, perhaps they're mostly empty space but have to be exactly that size for some reason. I'm not sure how much space those actually account for in the size of the netinst ISO images, I'm not sure if they get efficiently compressed in that context or not.
I wonder why we can't store them compressed on disk? Doesn't the kernel support loading zstd compressed firmware files?
I think we could strip *_video.so from /usr/lib64/dri (in mesa-dri-drivers) as I think those are only used for accelerated video playback, which we don't need in the installer. Unless anything would get sad that they aren't there. That's ~25M (uncompressed). I'm not sure if we could possibly lose one out of swrast_dri and kms_swrast_dri...
*_video.so
/usr/lib64/dri
mesa-dri-drivers
swrast_dri
kms_swrast_dri
I am building foreman-discovery-image (server hardware inventory LiveCD based on CentOS7 for PXE-booting) and I experienced huge size growth from 145MB (CentOS 7.0) to whooping 400MB (CentOS 7.8).
One trick I want to share is use of rdfind tool, duplicite files finder tool. When I executed it on /usr and /lib it found about 20MB on my system (I don't have X Windows), mostly timezone info and some firmware files. But when I added this to my kickstart, it actually saved almost double the size on the compressed squashfs for some reason. I recommend to take a look into this.
I've done some digging into this. The first quick fix is possibly change the squashfs compression algorithm. When I was doing some tests, I wasn't sure which compression was used for the build, so I used xz (squashfs -comp xz) and the rootfs.img went from 585M to 566M. Not a huge leap, but enough to keep it under the 700M limit. But, that is only a short term fix.
The big problem is (as is stated above) firmware. I exploded all the rootfs.img from F17 to the latest F33 build. The most interesting points are from F28 to F33. That's just three years. The firmware has grown from 282m to 573m. All the rest of the programs in the rootfs, haven't gotten any bigger.
F28 Adjusted: 1268m (1552m overall - 284m firmware) F29 Adjusted: 1268m (1576m overall - 308m firmware) F30 Adjusted: 1337m (1776m overall - 439m firmware) F31 Adjusted: 1329m (1809m overall - 480m firmware) F32 Adjusted: 1268m (1793m overall - 525m firmware) F33 Adjusted: 1278m (1851m overall - 573m firmware)
Oh, one of the other things I did was took out the entire netronome firmware (140m) to see how much is saved compressed. As I said above, I used the xz compression and it saved 12m.
Looked at two other things.
Using rdfind, I had it hard link all the duplicates. This reduced the uncompressed size by 50M, but after it was compressed, didn't change anything.
From the F33 image, I deleted entire firmware directory. I know it's not practical, but I wanted to see what we save if we did that.
Uncompressed: Before: 1851M After: 1278M Total Change: 573M Compressed: Before: 566M After: 357M Total Change: 209M
That's exactly the opposite from what I saw, weird. Most of the files were from /lib/firmware in my case, have you also deduped this one? I have doublechecked any my size went from 342M to 338M, not huge but something. I had to sneak in some other change when I said "it was double the size of uncompressed". That was not true, uncompressed savings are about 20MB, compressed it's 5MB.
The tool leaves quite big log file behind, make sure to redirect this to /dev/null:
rdfind -makehardlinks true -outputname /dev/null /usr /opt /lib
I was testing this with the default (xz) compression for the record. Maybe 1M block size makes this irrelevant if files are close to each other on the filesystem.
We've had issues in the past with anaconda pulling in firmwares for 3D printers. The liquidio and netronome can probably be excluded. Servers that have these interfaces usually have "management NICs" that are used for actually installing and ssh and the like because the NICs at early boot are basically useless without the firmware or have minimal viable functionality so I feel they can be excluded without issues.
well I'm way into the weeds on this one. Currently looking through https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git/tree/WHENCE and adding lines to strip all firmware files that aren't to do with networking, graphics, serial devices and so on - anything not actually needed for an install (like audio, TV cards and stuff). There's a lot of extremely old or extremely niche networking firmwares in there, but leaving those alone for now.
Also, this is fun: I believe gtk2 is included because lxpolkit requires it. Why are we dragging in lxpolkit? Because blivet-gui-runtime needs a provider of PolicyKit-authentication-agent. I think adding an explicit install of polkit-gnome should help, will test.
I'm working on a branch with several changes to try and help as separate commits, will try to submit a PR later tonight or tomorrow.
Here is a spectacularly huge rpm dep visualization of something that approximates the installer environment before stripping. I produced it by just installing all the packages logged in the lorax logs (for today's Branched) to a mock chroot. I had to install rpmorphan to produce the dotfile, so rpmorphan itself and its deps are included; can't do anything about that. Also things that are required in any mock chroot are there, some of them may not necessarily be in the installer env. But it's something.
I don't see an awful lot of useful info besides the gnome-firmware and gtk2 things I already saw, but I might be missing something. It's a big picture. :D
Dropping gnome-firmware and specifying polkit-gnome instead of lxpolkit saves ~8M. My current test image is 741343232 bytes. Still working...
polkit seems to be the only thing dragging in mozjs78, which is ~28MB. We only have polkit to make blivet-gui happy but it shouldn't actually need it in the installer env. We could try stripping the library file and see if anything breaks, but we could also look at somehow splitting the package more/differently so anaconda can get blivet-gui without the polkit dep?
My first attempt at chopping some more firmware files from linux-firmware gets us down to 734003200 bytes. Which is exactly the size limit. Job done! :D
I'll do a quick boot/install check on it tomorrow and send a PR.
I did a hacky test of the polkit thing - I booted the installer, stopped polkit.service, deleted /usr/lib/polkit-1/polkitd , masked polkit.service , and ran through advanced custom partitioning (i.e. blivet-gui). It worked fine. So yeah, that seems attackable.
Initial PR: https://github.com/weldr/lorax/pull/1070
I went through runtime-cleanup.pl and did a big...cleanup. A test image built with those changes is 727711744 bytes. Will run it through openQA tomorrow and see how it does, then send a PR.
So current status here: my initial PR was merged for Rawhide and we've had a Rawhide compose since then; nothing obvious went wrong. https://github.com/weldr/lorax/pull/1073 is the same PR for F33. I also have a couple of further proposals to reduce size more:
both are proposed for Rawhide for now, but can easily be proposed for F33 too. I have one more firmware change proposal queued up which would need to go on top of the Mellanox one (dropping dpaa2 firmware on non-aarch64 arches).
dpaa2
@tdawson
I wasn't sure which compression was used for the build, so I used xz (squashfs -comp xz) and the rootfs.img went from 585M to 566M.
Compose uses -comp xz. But did you skip the nested ext4 file system that's inside the squashfs? In my testing that accounts for ~38M reduction, when eliminating the nested ext4. There is a Fedora 34 (also Fedora 32 but rejected) proposal to make it possible for koji and pungi to leverage existing support in lorax and dracut for plain squashfs images (no nested ext4).
mksquashfs does file level duplicate checking by default, and uses hardlinks (applies to plain squashfs images, not ones with a nested ext4 image).
So https://github.com/weldr/lorax/pull/1073 is merged now. I sent F33 versions of two further PRs:
runtime-cleanup.pl
I would say we should merge at least one of those two, then do an F33 lorax build+update and mark it as fixing the bugs...
So now we have a new lorax build that we hope ought to get things under 700MB.
But did you skip the nested ext4 file system that's inside the squashfs? In my testing that accounts for ~38M reduction, when eliminating the nested ext4.
How do I do that? Is this possible with livecd-creator as well?
It's --squashfs-only in lorax, more in this anaconda PR. And this koji issue. livemedia-creator does, I'm not sure about livecd-creator.
--squashfs-only
This is supported in livecd-creator with --flat-squashfs. See: https://github.com/livecd-tools/livecd-tools/commit/9d7648470b1d15e1af9fa080851f5a75a26d9436
livecd-creator
--flat-squashfs
A new lorax build with several of my changes has now gone stable which will help cut things down to under 700M, hopefully. For Rawhide, we have one more change in lorax, plus there are a couple of compression-related changes proposed or implemented, and today's x86_64 Everything netinst is 706740224 bytes. Which is...better. I dunno how small we have to get to close the bug. :)
I've used --flat-squashfs with CentOS7 live image I create but dracut is unable to mount it with error /dev/mapper/live-rw does not exist. My flags are rootflags=loop root=live:/fdi.iso rootfstype=auto ro rd.live.image acpi=force rd.luks=0 rd.md=0 rd.dm=0 rd.lvm=0 rd.bootif=0 rd.neednet=0. Is there something I need to add on the kernel command line? I see rd.live.overlay.overlayfs mentioned in the patch, I am unsure what to remove tho.
/dev/mapper/live-rw
rootflags=loop root=live:/fdi.iso rootfstype=auto ro rd.live.image acpi=force rd.luks=0 rd.md=0 rd.dm=0 rd.lvm=0 rd.bootif=0 rd.neednet=0
rd.live.overlay.overlayfs
sorry, I really don't understand the question?
I brought up the nested ext4 and plain squashfs image type, which affect image size but are otherwise off topic. The plain squashfs image type needs different boot parameters to setup the overlay: nested ext4 images use device-mapper based overlay and the plain squashfs image use overlayfs - hence @lzap asking about rd.live.overlay.overlayfs. My suggestion is to bring it up on the related devel@ thread I mentioned.
Yeah sorry that is exactly my question. I have successfully built CentOS7-based image via livecd-creator however it does not boot. What are the kernel command line options? Are those features even supported in CentOS7 kernels? I will ask there thanks.
So we are on about 670MB for f36. Is there an opportunity to get the image even smaller or should we just close this?
Metadata Update from @humaton: - Issue close_status updated to: Fixed - Issue status updated to: Closed (was: Open)
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