hi guys. I want to build a cutom liveos by lorax. my first liveos , dracut miss 'livenet' module, so it can **NOT** boot under PXE boot failed message:
dracut: FATAL: Don't Know how to handle 'root=live:http:// ...squashfs.img'
first create command:
livemedia-creator --no-virt --make-iso --ks=centos7.liveos.ks.cfg
After I add 'dracut-network' package in centos7.liveos.ks.cfg '%package' section, the second create liveos with 'livenet' module can boot from PXE successfully:
livemedia-creator --dracut-arg="--no-hostonly" --no-virt --make-iso --ks=centos7.liveos.ks.cfg
But squashfs.img size increased was larger than the size initramfs.img increased. I hope to slim 'squashfs.img' size, so it could boot from PXE speedily. I mount the squashfs.img compare the different size of these two liveos, the different size was **only** at initramfs.img
install size was increase on 11M, but squashfs.img increase 50M :
# df -h ... /dev/loop1 296M 296M 0 100% /mnt/1 <-- squashfs.img size /dev/loop2 21G 817M 20G 4% /media/1 <-- install size ... /dev/loop3 346M 346M 0 100% /mnt/2 <-- squashfs.img size /dev/loop4 21G 828M 20G 4% /media/2 <-- install size
'du -sh' show it under '/boot' direcory.
# du -sh /media/1/*|sort -rh 748M /media/1/usr 31M /media/1/boot <-- initramfs.img without livenet 22M /media/1/var 9.6M /media/1/etc 3.2M /media/1/opt 143K /media/1/root 12K /media/1/lost+found 11K /media/1/tmp 1.0K /media/1/sys 1.0K /media/1/srv 1.0K /media/1/run 1.0K /media/1/proc 1.0K /media/1/mnt 1.0K /media/1/media 1.0K /media/1/home 1.0K /media/1/dev 0 /media/1/sbin 0 /media/1/lib64 0 /media/1/lib 0 /media/1/bin
# du -sh /media/2/*|sort -rh 748M /media/2/usr 42M /media/2/boot <-- nohostonly initramfs.img with livenet 22M /media/2/var 9.6M /media/2/etc 3.2M /media/2/opt 143K /media/2/root 12K /media/2/lost+found 11K /media/2/tmp 1.0K /media/2/sys 1.0K /media/2/srv 1.0K /media/2/run 1.0K /media/2/proc 1.0K /media/2/mnt 1.0K /media/2/media 1.0K /media/2/home 1.0K /media/2/dev 0 /media/2/sbin 0 /media/2/lib64 0 /media/2/lib 0 /media/2/bin
increase SIZE was at initramfs.img:
-rw-r--r-- 1 root root 34M | 2014-07-17 22:58:56 | initramfs-3.10.0-123.4.2.el7.x86_64.img -rw-r--r-- 1 root root 23M | 2014-07-17 20:28:49 | initramfs-3.10.0-123.4.2.el7.x86_64.img
/media/1/boot: total 31M drwxr-xr-x 2 root root 1.0K | 2014-07-17 20:27:43 | grub drwxr-xr-x 3 root root 1.0K | 2014-07-17 20:27:47 | grub2 -rw-r--r-- 1 root root 174K | 2014-06-10 16:16:36 | elf-memtest86+-4.20 -rw-r--r-- 1 root root 173K | 2014-06-10 16:16:36 | memtest86+-4.20 -rw-r--r-- 1 root root 224K | 2014-07-01 00:20:49 | symvers-3.10.0-123.4.2.el7.x86_64.gz -rw-r--r-- 1 root root 23M | 2014-07-17 20:28:49 | initramfs-3.10.0-123.4.2.el7.x86_64.img -rw-r--r-- 1 root root 120K | 2014-07-01 00:18:32 | config-3.10.0-123.4.2.el7.x86_64 -rw------- 1 root root 2.8M | 2014-07-01 00:18:32 | System.map-3.10.0-123.4.2.el7.x86_64 -rwxr-xr-x 1 root root 4.7M | 2014-07-01 00:18:33 | vmlinuz-3.10.0-123.4.2.el7.x86_64
/media/2/boot: total 42M drwxr-xr-x 2 root root 1.0K | 2014-07-17 22:57:34 | grub drwxr-xr-x 3 root root 1.0K | 2014-07-17 22:57:38 | grub2 -rw-r--r-- 1 root root 174K | 2014-06-10 16:16:36 | elf-memtest86+-4.20 -rw-r--r-- 1 root root 173K | 2014-06-10 16:16:36 | memtest86+-4.20 -rw-r--r-- 1 root root 224K | 2014-07-01 00:20:49 | symvers-3.10.0-123.4.2.el7.x86_64.gz -rw-r--r-- 1 root root 34M | 2014-07-17 22:58:56 | initramfs-3.10.0-123.4.2.el7.x86_64.img -rw-r--r-- 1 root root 120K | 2014-07-01 00:18:32 | config-3.10.0-123.4.2.el7.x86_64 -rw------- 1 root root 2.8M | 2014-07-01 00:18:32 | System.map-3.10.0-123.4.2.el7.x86_64 -rwxr-xr-x 1 root root 4.7M | 2014-07-01 00:18:33 | vmlinuz-3.10.0-123.4.2.el7.x86_64
On Fri, 2014-07-18 at 13:12 +0800, 耳东 wrote:
hi guys. I want to build a cutom liveos by lorax. my first liveos , dracut miss 'livenet' module, so it can **NOT** boot under PXE boot failed message:
dracut: FATAL: Don't Know how to handle'root=live:http://...squashfs.img'
first create command:
livemedia-creator --no-virt --make-iso --ks=centos7.liveos.ks.cfgAfter I add 'dracut-network' package in centos7.liveos.ks.cfg '% package' section, the second create liveos with 'livenet' module can boot from PXE successfully:
livemedia-creator --dracut-arg="--no-hostonly" --no-virt--make-iso --ks=centos7.liveos.ks.cfg
But squashfs.img size increased was larger than the size initramfs.img increased. I hope to slim 'squashfs.img' size, so it could boot from PXE speedily. I mount the squashfs.img compare the different size of these two liveos, the different size was **only** at initramfs.img
This is really weird. Are you sure you used the same kickstart file in both cases? Did you try uncompressing the squashfs.img and running 'du -sh *' in it to see which folders have grown?
Other than that I'd suggest you to use squashfs.img over NFS so that it can be mounted instead of keeping it in RAM.
On Fri, Jul 18, 2014 at 01:12:44PM +0800, 耳东 wrote:
hi guys. I want to build a cutom liveos by lorax. my first liveos , dracut miss 'livenet' module, so it can **NOT** boot under PXE boot failed message:
dracut: FATAL: Don't Know how to handle 'root=live:http://...squashfs.img'
first create command:
livemedia-creator --no-virt --make-iso --ks=centos7.liveos.ks.cfgAfter I add 'dracut-network' package in centos7.liveos.ks.cfg '%package' section, the second create liveos with 'livenet' module can boot from PXE successfully:
livemedia-creator --dracut-arg="--no-hostonly" --no-virt --make-iso--ks=centos7.liveos.ks.cfg
But squashfs.img size increased was larger than the size initramfs.img increased.
Adding packages changes the squashfs.img (the root filesystem). dracut uses some of these to create the initrd. dracut-network will pull in other packages (eg. dhclient, iputils, iproute) which may not have been present.
The easiest way to tell is to mount both squashfs.img files and diff their contents.
@Vratislav Podzimek
the difference of ks files was only 'dracut-network' package :
# find . -name 'anaconda-ks.cfg'|xargs ls ./1/root/anaconda-ks.cfg ./2/root/anaconda-ks.cfg
# find . -name 'anaconda-ks.cfg'|xargs diff 115a116 > dracut-network
second liveos only add 'dracut-network' package to build 'livenet' module into initrd.img.
@Brian C. Lane, I have sort all installed packges at the end of %post install section:
%post --logfile /dev/stdout ... rpm -qa|sort > /root/rpm-qa.txt yum clean all rm -f /var/lib/rpm/__db* rm -fr /usr/share/doc %end
# find . -name 'rpm-qa.txt'|xargs ls ./1/root/rpm-qa.txt ./2/root/rpm-qa.txt
# find . -name 'rpm-qa.txt'|xargs diff 65a66 > dracut-network-033-161.el7.x86_64
Because dracut rebuild initramfs.img after post install, so I boot from this livecd, and diff the livcos's rpm packags with %post end 'rpm -qa' sort. they are all the same. so the dracut rebuild initramfs.img not install extra packages.
This is my ks.cfg paste :
mount rootfs.img :
# losetup -l NAME SIZELIMIT OFFSET AUTOCLEAR RO BACK-FILE /dev/loop0 0 0 1 0 /var/tmp/tmpc4zHMy/images/install.img /dev/loop1 0 0 1 1 /mnt/1/LiveOS/rootfs.img /dev/loop2 0 0 1 0 /var/tmp/tmp4Gzruj/images/install.img /dev/loop3 0 0 1 1 /mnt/2/LiveOS/rootfs.img
# du -sh /mnt/1/LiveOS/rootfs.img /mnt/2/LiveOS/rootfs.img 1000M /mnt/1/LiveOS/rootfs.img 1.1G /mnt/2/LiveOS/rootfs.img
# df -h /dev/loop0 296M 296M 0 100% /mnt/1 /dev/loop1 21G 817M 20G 4% /media/1 <-- root size /dev/loop2 346M 346M 0 100% /mnt/2 /dev/loop3 21G 828M 20G 4% /media/2 <-- root size
then I 'du -sh *' the root filesystem of rootfs.img:
# du -sh /media/* 813M /media/1 824M /media/2
# du -sh /media/1/*|sort -hr # du -sh /media/2/*|sort -hr 748M /media/1/usr 748M /media/2/usr 31M /media/1/boot <-- diff size --> 42M /media/2/boot 22M /media/1/var 22M /media/2/var 9.6M /media/1/etc 9.6M /media/2/etc 3.2M /media/1/opt 3.2M /media/2/opt 143K /media/1/root 143K /media/2/root 12K /media/1/lost+found 12K /media/2/lost+found 11K /media/1/tmp 11K /media/2/tmp 1.0K /media/1/sys 1.0K /media/2/sys 1.0K /media/1/srv 1.0K /media/2/srv 1.0K /media/1/run 1.0K /media/2/run 1.0K /media/1/proc 1.0K /media/2/proc 1.0K /media/1/mnt 1.0K /media/2/mnt 1.0K /media/1/media 1.0K /media/2/media 1.0K /media/1/home 1.0K /media/2/home 1.0K /media/1/dev 1.0K /media/2/dev 0 /media/1/sbin 0 /media/2/sbin 0 /media/1/lib64 0 /media/2/lib64 0 /media/1/lib 0 /media/2/lib 0 /media/1/bin 0 /media/2/bin
I suspect livemedia-creator can NOT release the temp space under install or dracut generate initramfs.img. mksquashfs could NOT ignore these sparse space.
2014-07-19 1:20 GMT+08:00 Brian C. Lane bcl@redhat.com:
On Fri, Jul 18, 2014 at 01:12:44PM +0800, 耳东 wrote:
hi guys. I want to build a cutom liveos by lorax. my first liveos , dracut miss 'livenet' module, so it can **NOT** boot under PXE boot failed message:
dracut: FATAL: Don't Know how to handle 'root=live:http://...squashfs.img'
first create command:
livemedia-creator --no-virt --make-iso --ks=centos7.liveos.ks.cfgAfter I add 'dracut-network' package in centos7.liveos.ks.cfg '%package' section, the second create liveos with 'livenet' module can boot from PXE successfully:
livemedia-creator --dracut-arg="--no-hostonly" --no-virt --make-iso--ks=centos7.liveos.ks.cfg
But squashfs.img size increased was larger than the size initramfs.img increased.
Adding packages changes the squashfs.img (the root filesystem). dracut uses some of these to create the initrd. dracut-network will pull in other packages (eg. dhclient, iputils, iproute) which may not have been present.
The easiest way to tell is to mount both squashfs.img files and diff their contents.
-- Brian C. Lane | Anaconda Team | IRC: bcl #anaconda | Port Orchard, WA (PST8PDT)
Anaconda-devel-list mailing list Anaconda-devel-list@redhat.com https://www.redhat.com/mailman/listinfo/anaconda-devel-list
hi guys, I have refered to the minimal ks config of cloud-kickstarts.git:
https://git.fedorahosted.org/cgit/cloud-kickstarts.git/tree/container/contai...
I have clean unused locales and some file.
- compress cracklib pw_dict - clean unused locale files - rm some static pictures and log files
the different ks config:
+gzip -9 /usr/share/cracklib/pw_dict.pwd +localedef --list-archive | grep -v en_US | xargs localedef --delete-from-archive +mv -f /usr/lib/locale/locale-archive /usr/lib/locale/locale-archive.tmpl +/usr/sbin/build-locale-archive +mv -f /usr/share/locale/en /usr/share/locale/en_US /tmp +rm -rf /usr/share/locale/* +mv /tmp/en /tmp/en_US /usr/share/locale/ +mv /usr/share/i18n/locales/en_US /tmp +rm -rf /usr/share/i18n/locales/* +mv /tmp/en_US /usr/share/i18n/locales/ +echo '%_install_langs C:en:en_US:en_US.UTF-8' >> /etc/rpm/macros.imgcreate + +truncate -c -s 0 /var/log/lastlog
rpm -qa|sort > /root/rpm-qa.txt yum clean all rm -f /etc/resolv.conf rm -f /var/lib/rpm/__db* +rm -rf /tmp/* +rm -fr /var/log/anaconda rm -fr /usr/share/doc/* +rm -fr /usr/share/backgrounds/* +rm -fr /usr/share/kde4/* +rm -fr /var/lib/yum/yumdb/*
I mount the different squashfs.img file:
/dev/loop0 312M 312M 0 100% /mnt/1 /dev/loop1 21G 806M 20G 4% /media/1 <-- before clean
/dev/loop2 315M 315M 0 100% /mnt/2 /dev/loop3 21G 619M 21G 3% /media/2 <-- after clean
the install size was saved 806M - 619M = 187M, but squashfs.img only save 315M - 312M = 3M where has the spare space gone ?
# losetup -l NAME SIZELIMIT OFFSET AUTOCLEAR RO BACK-FILE /dev/loop0 0 0 1 0 /var/tmp/tmp3vk1TM/LiveOS/squashfs.img /dev/loop1 0 0 1 1 /mnt/1/LiveOS/rootfs.img /dev/loop2 0 0 1 0 /var/tmp/tmpWRiKra/LiveOS/squashfs.img /dev/loop3 0 0 1 1 /mnt/2/LiveOS/rootfs.img
# du -sh /var/tmp/tmp3vk1TM/LiveOS/squashfs.img 312M /var/tmp/tmp3vk1TM/LiveOS/squashfs.img
# du -sh /var/tmp/tmpWRiKra/LiveOS/squashfs.img 315M /var/tmp/tmpWRiKra/LiveOS/squashfs.img
# find . -name rootfs.img|xargs du -sh 1.1G ./1/LiveOS/rootfs.img 1.1G ./2/LiveOS/rootfs.img
the different of mounted rootfs size was mainly cleaned locale directory:
# du -sh /media/1/*|sort -hr # du -sh /media/2/*|sort -hr *727M /media/1/usr <-- cleaned --> 540M /media/2/usr* 42M /media/1/boot 42M /media/2/boot 21M /media/1/var 21M /media/2/var 9.6M /media/1/etc 9.6M /media/2/etc 3.2M /media/1/opt 3.2M /media/2/opt 144K /media/1/root 144K /media/2/root 12K /media/1/lost+found 12K /media/2/lost+found 11K /media/1/tmp 9.0K /media/2/tmp 1.0K /media/1/sys 1.0K /media/2/sys 1.0K /media/1/srv 1.0K /media/2/srv 1.0K /media/1/run 1.0K /media/2/run 1.0K /media/1/proc 1.0K /media/2/proc 1.0K /media/1/mnt 1.0K /media/2/mnt 1.0K /media/1/media 1.0K /media/2/media 1.0K /media/1/home 1.0K /media/2/home 1.0K /media/1/dev 1.0K /media/2/dev 0 /media/1/sbin 0 /media/2/sbin 0 /media/1/lib64 0 /media/2/lib64 0 /media/1/lib 0 /media/2/lib 0 /media/1/bin 0 /media/2/bin
# du -sh /media/1/usr/lib/*|sort -hr|head # du -sh /media/2/usr/lib/*|sort -hr|head 103M /media/1/usr/lib/modules 103M /media/2/usr/lib/modules *102M /media/1/usr/lib/locale <-- locale --> 2.0M /media/2/usr/lib/locale* 52M /media/1/usr/lib/firmware 52M /media/2/usr/lib/firmware 9.1M /media/1/usr/lib/udev 9.1M /media/2/usr/lib/udev 8.1M /media/1/usr/lib/python2.7 8.1M /media/2/usr/lib/python2.7 4.2M /media/1/usr/lib/grub 4.2M /media/2/usr/lib/grub 3.9M /media/1/usr/lib/systemd 3.9M /media/2/usr/lib/systemd 1.8M /media/1/usr/lib/kbd 1.8M /media/2/usr/lib/kbd 710K /media/1/usr/lib/dracut 710K /media/2/usr/lib/dracut 280K /media/1/usr/lib/rpm 280K /media/2/usr/lib/rpm
# du -sh /media/1/usr/share/*|sort -hr|head # du -sh /media/2/usr/share/*|sort -hr|head *79M /media/1/usr/share/locale <-- locale --> 22M /media/2/usr/share/vim* 22M /media/1/usr/share/vim 17M /media/2/usr/share/perl5 17M /media/1/usr/share/perl5 13M /media/2/usr/share/nmap 13M /media/1/usr/share/nmap 13M /media/2/usr/share/man 13M /media/1/usr/share/man 5.2M /media/2/usr/share/hwdata 9.0M /media/1/usr/share/cracklib 4.3M /media/2/usr/share/cracklib 8.6M /media/1/usr/share/i18n 4.2M /media/2/usr/share/mime 5.2M /media/1/usr/share/hwdata 3.0M /media/2/usr/share/i18n 4.2M /media/1/usr/share/mime 2.9M /media/2/usr/share/misc 2.9M /media/1/usr/share/misc 2.7M /media/2/usr/share/info
how could I optimize the cleaned spare space of squashfs.img
thanks
2014-07-19 12:06 GMT+08:00 耳东 volcanowill@gmail.com:
@Vratislav Podzimek
the difference of ks files was only 'dracut-network' package :
# find . -name 'anaconda-ks.cfg'|xargs ls ./1/root/anaconda-ks.cfg ./2/root/anaconda-ks.cfg # find . -name 'anaconda-ks.cfg'|xargs diff 115a116 > dracut-networksecond liveos only add 'dracut-network' package to build 'livenet' module into initrd.img.
@Brian C. Lane, I have sort all installed packges at the end of %post install section:
%post --logfile /dev/stdout ... rpm -qa|sort > /root/rpm-qa.txt yum clean all rm -f /var/lib/rpm/__db* rm -fr /usr/share/doc %end # find . -name 'rpm-qa.txt'|xargs ls ./1/root/rpm-qa.txt ./2/root/rpm-qa.txt # find . -name 'rpm-qa.txt'|xargs diff 65a66 > dracut-network-033-161.el7.x86_64Because dracut rebuild initramfs.img after post install, so I boot from this livecd, and diff the livcos's rpm packags with %post end 'rpm -qa' sort. they are all the same. so the dracut rebuild initramfs.img not install extra packages.
This is my ks.cfg paste :
http://ix.io/dsSmount rootfs.img :
# losetup -l NAME SIZELIMIT OFFSET AUTOCLEAR RO BACK-FILE /dev/loop0 0 0 1 0/var/tmp/tmpc4zHMy/images/install.img /dev/loop1 0 0 1 1 /mnt/1/LiveOS/rootfs.img /dev/loop2 0 0 1 0 /var/tmp/tmp4Gzruj/images/install.img /dev/loop3 0 0 1 1 /mnt/2/LiveOS/rootfs.img
# du -sh /mnt/1/LiveOS/rootfs.img /mnt/2/LiveOS/rootfs.img 1000M /mnt/1/LiveOS/rootfs.img 1.1G /mnt/2/LiveOS/rootfs.img # df -h /dev/loop0 296M 296M 0 100% /mnt/1 /dev/loop1 21G 817M 20G 4% /media/1 <-- root size /dev/loop2 346M 346M 0 100% /mnt/2 /dev/loop3 21G 828M 20G 4% /media/2 <-- root sizethen I 'du -sh *' the root filesystem of rootfs.img:
# du -sh /media/* 813M /media/1 824M /media/2 # du -sh /media/1/*|sort -hr # du -sh /media/2/*|sort-hr 748M /media/1/usr 748M /media/2/usr 31M /media/1/boot <-- diff size --> 42M /media/2/boot 22M /media/1/var 22M /media/2/var 9.6M /media/1/etc 9.6M /media/2/etc 3.2M /media/1/opt 3.2M /media/2/opt 143K /media/1/root 143K /media/2/root 12K /media/1/lost+found 12K /media/2/lost+found 11K /media/1/tmp 11K /media/2/tmp 1.0K /media/1/sys 1.0K /media/2/sys 1.0K /media/1/srv 1.0K /media/2/srv 1.0K /media/1/run 1.0K /media/2/run 1.0K /media/1/proc 1.0K /media/2/proc 1.0K /media/1/mnt 1.0K /media/2/mnt 1.0K /media/1/media 1.0K /media/2/media 1.0K /media/1/home 1.0K /media/2/home 1.0K /media/1/dev 1.0K /media/2/dev 0 /media/1/sbin 0 /media/2/sbin 0 /media/1/lib64 0 /media/2/lib64 0 /media/1/lib 0 /media/2/lib 0 /media/1/bin 0 /media/2/bin
I suspect livemedia-creator can NOT release the temp space under install or dracut generate initramfs.img. mksquashfs could NOT ignore these sparse space.
2014-07-19 1:20 GMT+08:00 Brian C. Lane bcl@redhat.com:
On Fri, Jul 18, 2014 at 01:12:44PM +0800, 耳东 wrote:
hi guys. I want to build a cutom liveos by lorax. my first liveos , dracut miss 'livenet' module, so it can **NOT** boot under PXE boot failed message:
dracut: FATAL: Don't Know how to handle 'root=live:http://...squashfs.img'
first create command:
livemedia-creator --no-virt --make-iso --ks=centos7.liveos.ks.cfgAfter I add 'dracut-network' package in centos7.liveos.ks.cfg '%package' section, the second create liveos with 'livenet' module can boot from PXE successfully:
livemedia-creator --dracut-arg="--no-hostonly" --no-virt --make-iso--ks=centos7.liveos.ks.cfg
But squashfs.img size increased was larger than the size initramfs.img increased.
Adding packages changes the squashfs.img (the root filesystem). dracut uses some of these to create the initrd. dracut-network will pull in other packages (eg. dhclient, iputils, iproute) which may not have been present.
The easiest way to tell is to mount both squashfs.img files and diff their contents.
-- Brian C. Lane | Anaconda Team | IRC: bcl #anaconda | Port Orchard, WA (PST8PDT)
Anaconda-devel-list mailing list Anaconda-devel-list@redhat.com https://www.redhat.com/mailman/listinfo/anaconda-devel-list
On Tue, 2014-07-22 at 09:36 +0800, 耳东 wrote:
hi guys, I have refered to the minimal ks config of cloud-kickstarts.git:
https://git.fedorahosted.org/cgit/cloud-kickstarts.git/tree/container/contai...
I have clean unused locales and some file.
- compress cracklib pw_dict
- clean unused locale files
- rm some static pictures and log files
the different ks config:
+gzip -9 /usr/share/cracklib/pw_dict.pwd +localedef --list-archive | grep -v en_US | xargs localedef--delete-from-archive +mv -f /usr/lib/locale/locale-archive /usr/lib/locale/locale-archive.tmpl +/usr/sbin/build-locale-archive +mv -f /usr/share/locale/en /usr/share/locale/en_US /tmp +rm -rf /usr/share/locale/* +mv /tmp/en /tmp/en_US /usr/share/locale/ +mv /usr/share/i18n/locales/en_US /tmp +rm -rf /usr/share/i18n/locales/* +mv /tmp/en_US /usr/share/i18n/locales/ +echo '%_install_langs C:en:en_US:en_US.UTF-8'
/etc/rpm/macros.imgcreate
+ +truncate -c -s 0 /var/log/lastlog rpm -qa|sort > /root/rpm-qa.txt yum clean all rm -f /etc/resolv.conf rm -f /var/lib/rpm/__db* +rm -rf /tmp/* +rm -fr /var/log/anaconda rm -fr /usr/share/doc/* +rm -fr /usr/share/backgrounds/* +rm -fr /usr/share/kde4/* +rm -fr /var/lib/yum/yumdb/*I mount the different squashfs.img file:
/dev/loop0 312M 312M 0 100% /mnt/1 /dev/loop1 21G 806M 20G 4% /media/1 <-- beforeclean
/dev/loop2 315M 315M 0 100% /mnt/2 /dev/loop3 21G 619M 21G 3% /media/2 <-- afterclean
the install size was saved 806M - 619M = 187M, but squashfs.img only save 315M - 312M = 3M where has the spare space gone ?
I think this is a question for people around squashfs, but as you can see the content is highly compressed so if you removed 187 M of data with high compression ratio (which locales definitely are), the difference may be such small.
But the original issue with 100 MB bump is really wierd. Did you try running unsquashfs followed by mksquashfs to see if it stays the same?
@Vratislav Podzimek
I have made a mistake. After clean locale files, squashfs.img became* larger *than before.
# losetup -l NAME SIZELIMIT OFFSET AUTOCLEAR RO BACK-FILE /dev/loop0 0 0 1 0 /var/tmp/tmp3vk1TM/LiveOS/squashfs.img /dev/loop1 0 0 1 1 /mnt/1/LiveOS/rootfs.img /dev/loop2 0 0 1 0 /var/tmp/tmpWRiKra/LiveOS/squashfs.img /dev/loop3 0 0 1 1 /mnt/2/LiveOS/rootfs.img
/dev/loop0 312M 312M 0 100% /mnt/1 <-- before clean /dev/loop1 21G 806M 20G 4% /media/1 <-- before clean /dev/loop2 315M 315M 0 100% /mnt/2 <-- after clean /dev/loop3 21G 619M 21G 3% /media/2 <-- after clean
# du -sh /var/tmp/tmp3vk1TM/LiveOS/squashfs.img 312M /var/tmp/tmp3vk1TM/LiveOS/squashfs.img
# du -sh /var/tmp/tmpWRiKra/LiveOS/squashfs.img 315M /var/tmp/tmpWRiKra/LiveOS/squashfs.img
After I unsquashfs these two squashfs.img, their sizes were *same*.
# unsquashfs -d /tmp/2 /var/tmp/tmpWRiKra/LiveOS/squashfs.img # unsquashfs -d /tmp/1 /var/tmp/tmpWRiKra/LiveOS/squashfs.img
# find /tmp -name '*.img'|xargs du -sh 1.1G /tmp/1/LiveOS/rootfs.img 1.1G /tmp/2/LiveOS/rootfs.img
# ll /tmp/{1..2}/LiveOS/rootfs.img -rw-r--r-- 1 root root 21G | 2014-07-21 18:00:19 | /tmp/1/LiveOS/rootfs.img -rw-r--r-- 1 root root 21G | 2014-07-21 20:35:24 | /tmp/2/LiveOS/rootfs.img
2014-07-22 16:38 GMT+08:00 Vratislav Podzimek vpodzime@redhat.com:
On Tue, 2014-07-22 at 09:36 +0800, 耳东 wrote:
hi guys, I have refered to the minimal ks config of cloud-kickstarts.git:
https://git.fedorahosted.org/cgit/cloud-kickstarts.git/tree/container/contai...
I have clean unused locales and some file.
- compress cracklib pw_dict
- clean unused locale files
- rm some static pictures and log files
the different ks config:
+gzip -9 /usr/share/cracklib/pw_dict.pwd +localedef --list-archive | grep -v en_US | xargs localedef--delete-from-archive +mv -f /usr/lib/locale/locale-archive /usr/lib/locale/locale-archive.tmpl +/usr/sbin/build-locale-archive +mv -f /usr/share/locale/en /usr/share/locale/en_US /tmp +rm -rf /usr/share/locale/* +mv /tmp/en /tmp/en_US /usr/share/locale/ +mv /usr/share/i18n/locales/en_US /tmp +rm -rf /usr/share/i18n/locales/* +mv /tmp/en_US /usr/share/i18n/locales/ +echo '%_install_langs C:en:en_US:en_US.UTF-8'
/etc/rpm/macros.imgcreate
+ +truncate -c -s 0 /var/log/lastlog rpm -qa|sort > /root/rpm-qa.txt yum clean all rm -f /etc/resolv.conf rm -f /var/lib/rpm/__db* +rm -rf /tmp/* +rm -fr /var/log/anaconda rm -fr /usr/share/doc/* +rm -fr /usr/share/backgrounds/* +rm -fr /usr/share/kde4/* +rm -fr /var/lib/yum/yumdb/*I mount the different squashfs.img file:
/dev/loop0 312M 312M 0 100% /mnt/1 /dev/loop1 21G 806M 20G 4% /media/1 <-- beforeclean
/dev/loop2 315M 315M 0 100% /mnt/2 /dev/loop3 21G 619M 21G 3% /media/2 <-- afterclean
the install size was saved 806M - 619M = 187M, but squashfs.img only save 315M - 312M = 3M where has the spare space gone ?
I think this is a question for people around squashfs, but as you can see the content is highly compressed so if you removed 187 M of data with high compression ratio (which locales definitely are), the difference may be such small.
But the original issue with 100 MB bump is really wierd. Did you try running unsquashfs followed by mksquashfs to see if it stays the same?
-- Vratislav Podzimek
Anaconda Rider | RHCE | Red Hat, Inc. | Brno - Czech Republic
Anaconda-devel-list mailing list Anaconda-devel-list@redhat.com https://www.redhat.com/mailman/listinfo/anaconda-devel-list
# unsquashfs -d /tmp/1 /var/tmp/tmp3vk1TM/LiveOS/squashfs.img # unsquashfs -d /tmp/2 /var/tmp/tmpWRiKra/LiveOS/squashfs.img
# find /tmp -name '*.img'|xargs du -sh 1.1G /tmp/1/LiveOS/rootfs.img 1.1G /tmp/2/LiveOS/rootfs.img
# ll /tmp/{1..2}/LiveOS/rootfs.img -rw-r--r-- 1 root root 21G | 2014-07-22 18:23:55 | /tmp/1/LiveOS/rootfs.img -rw-r--r-- 1 root root 21G | 2014-07-22 18:23:50 | /tmp/2/LiveOS/rootfs.img
# mount -o loop /tmp/1/LiveOS/rootfs.img /media/1 # mount -o loop /tmp/2/LiveOS/rootfs.img /media/2
# df -h Filesystem Size Used Avail Use% Mounted on /dev/loop3 21G *619M* 21G 3% /media/2 /dev/loop4 21G *806M* 20G 4% /media/1
2014-07-22 18:16 GMT+08:00 耳东 volcanowill@gmail.com:
@Vratislav Podzimek
I have made a mistake. After clean locale files, squashfs.img became* larger *than before.
# losetup -l NAME SIZELIMIT OFFSET AUTOCLEAR RO BACK-FILE /dev/loop0 0 0 1 0 /var/tmp/tmp3vk1TM/LiveOS/squashfs.img /dev/loop1 0 0 1 1 /mnt/1/LiveOS/rootfs.img /dev/loop2 0 0 1 0 /var/tmp/tmpWRiKra/LiveOS/squashfs.img /dev/loop3 0 0 1 1 /mnt/2/LiveOS/rootfs.img
/dev/loop0 312M 312M 0 100% /mnt/1 <-- before clean
/dev/loop1 21G 806M 20G 4% /media/1 <-- before clean /dev/loop2 315M 315M 0 100% /mnt/2 <-- after clean
/dev/loop3 21G 619M 21G 3% /media/2 <-- after clean
# du -sh /var/tmp/tmp3vk1TM/LiveOS/squashfs.img 312M /var/tmp/tmp3vk1TM/LiveOS/squashfs.img
# du -sh /var/tmp/tmpWRiKra/LiveOS/squashfs.img 315M /var/tmp/tmpWRiKra/LiveOS/squashfs.img
After I unsquashfs these two squashfs.img, their sizes were *same*.
# unsquashfs -d /tmp/2 /var/tmp/tmpWRiKra/LiveOS/squashfs.img # unsquashfs -d /tmp/1 /var/tmp/tmpWRiKra/LiveOS/squashfs.img
# find /tmp -name '*.img'|xargs du -sh 1.1G /tmp/1/LiveOS/rootfs.img 1.1G /tmp/2/LiveOS/rootfs.img
# ll /tmp/{1..2}/LiveOS/rootfs.img -rw-r--r-- 1 root root 21G | 2014-07-21 18:00:19 | /tmp/1/LiveOS/rootfs.img -rw-r--r-- 1 root root 21G | 2014-07-21 20:35:24 | /tmp/2/LiveOS/rootfs.img
2014-07-22 16:38 GMT+08:00 Vratislav Podzimek vpodzime@redhat.com:
On Tue, 2014-07-22 at 09:36 +0800, 耳东 wrote:
hi guys, I have refered to the minimal ks config of cloud-kickstarts.git:
https://git.fedorahosted.org/cgit/cloud-kickstarts.git/tree/container/contai...
I have clean unused locales and some file.
- compress cracklib pw_dict
- clean unused locale files
- rm some static pictures and log files
the different ks config:
+gzip -9 /usr/share/cracklib/pw_dict.pwd +localedef --list-archive | grep -v en_US | xargs localedef--delete-from-archive +mv -f /usr/lib/locale/locale-archive /usr/lib/locale/locale-archive.tmpl +/usr/sbin/build-locale-archive +mv -f /usr/share/locale/en /usr/share/locale/en_US /tmp +rm -rf /usr/share/locale/* +mv /tmp/en /tmp/en_US /usr/share/locale/ +mv /usr/share/i18n/locales/en_US /tmp +rm -rf /usr/share/i18n/locales/* +mv /tmp/en_US /usr/share/i18n/locales/ +echo '%_install_langs C:en:en_US:en_US.UTF-8'
/etc/rpm/macros.imgcreate
+ +truncate -c -s 0 /var/log/lastlog rpm -qa|sort > /root/rpm-qa.txt yum clean all rm -f /etc/resolv.conf rm -f /var/lib/rpm/__db* +rm -rf /tmp/* +rm -fr /var/log/anaconda rm -fr /usr/share/doc/* +rm -fr /usr/share/backgrounds/* +rm -fr /usr/share/kde4/* +rm -fr /var/lib/yum/yumdb/*I mount the different squashfs.img file:
/dev/loop0 312M 312M 0 100% /mnt/1 /dev/loop1 21G 806M 20G 4% /media/1 <-- beforeclean
/dev/loop2 315M 315M 0 100% /mnt/2 /dev/loop3 21G 619M 21G 3% /media/2 <-- afterclean
the install size was saved 806M - 619M = 187M, but squashfs.img only save 315M - 312M = 3M where has the spare space gone ?
I think this is a question for people around squashfs, but as you can see the content is highly compressed so if you removed 187 M of data with high compression ratio (which locales definitely are), the difference may be such small.
But the original issue with 100 MB bump is really wierd. Did you try running unsquashfs followed by mksquashfs to see if it stays the same?
-- Vratislav Podzimek
Anaconda Rider | RHCE | Red Hat, Inc. | Brno - Czech Republic
Anaconda-devel-list mailing list Anaconda-devel-list@redhat.com https://www.redhat.com/mailman/listinfo/anaconda-devel-list
anaconda-devel@lists.fedoraproject.org
-
Brian C. Lane -
Vratislav Podzimek -
耳东