I wanna resize too btrfs partition shrink home and then move it ( change the cylinder positions) so I can enlarge root parition (/home partition si right after /root physicaly in HDD). And what’s the main problem/question is that physical moving, if it’s possible and how to achieve that?
btrfs is the file system not a partition. Partitions are just containers that contain file system. Thus any partition tools can be used to move and resize. The trick would be the extending of the btrfs file system in a larger partition You will have to dig into the btrfs tools to find out about that.
btrfs filesystem resize -500m to shrink orbtrfs filesystem resize +500m to expand
Yeah I know that command, but I mean like if I shrink (2) could I enlarge the 1, - will the 2 move it’s postition physicaly from cylinder e.g 50000 to 55000 , cause now 1 is : e.g 30000-40000 and 2 is:40000 - 50000 ? so I can be after this op\eration 40000-55000 , you know what i mean. i.e wont it do that 2 will shnrik but from 50000-60000 it’l shrink to 50000-55000 so I can’t enlarge the 1
That is still just the files system you need to first change the partition size and locations. Remember partitions are containers of file system Partitions and file systems are NOT the same thing.
SO first you need to reduce the file system in a partition you are going to reduce. then you need to expand any file system for any partition you make larger.
you can try using GParted
just an FYI, I am pretty sure GParted will work
BUT be VERY VERY VERY careful not to touch any partitions involved in boot process.
also you will need to get the gparted CD and boot from it.
what I think your steps would be (and I tried this in a VM but not with /home as I do not have one):
- boot from gparted CD
- identify your “/” “/boot” “/home” partitions
- shrink your /home partition to desired size
- move your home partition as needed
- expand / partition as need
do each steps 3,4,5 in order applying changes after each steps so if something go wrong all is not lost
and as always BACKUP FIRST BACKUP FIRST BACKUP FIRST 
PS>> not sure if it applies to you but it is not recommended to move any windows partitions as it will affect the boot process
thats what I thought , so if I boot from /boot parittion so don’t move in any way, but can I move /root then? I mean partitions are recognized in grub by id (whole filesys is on that partition)
I am not sure about /root.
everywhere I looked it is not recommended to move any windows partition and any partition used in boot. as I am not proficient with Linux File system much I personally would not try it, but I am pretty sure you can recover using emergency boot CD or something and re-point grub to the /root partition as needed.
actually my situation changed alittle bit, enough said I’ll rater post this
df -h
Filesystem Size Used Avail Use% Mounted on
/dev/sda6 26G 13G 13G 51% /
devtmpfs 1.9G 44K 1.9G 1% /dev
tmpfs 1.9G 2.1M 1.9G 1% /dev/shm
tmpfs 1.9G 5.2M 1.9G 1% /run
tmpfs 1.9G 0 1.9G 0% /sys/fs/cgroup
tmpfs 1.9G 5.2M 1.9G 1% /var/lock
tmpfs 1.9G 5.2M 1.9G 1% /var/run
/dev/sda7 28G 22G 4.4G 83% /home
/dev/sda12 585M 246M 297M 46% /boot
/dev/sda1 197G 99G 88G 53% /run/media/robert/data
so I want/need to move /boot partition and then resize /home (to ease pain in the future put the /boot before /home so I can easily enlarge the /home in the future) and then use Live CD to locate grub to find that /boot parition. I suppose that’d be like proper solution
so I did everything I needed (resized, moved my partitions), but now I’m getting error at grub : no such partition. I tried grub rescue but also with no sucess http://karuppuswamy.com/wordpress/2011/09/09/how-to-fix-grub-rescue-prompt-without-live-cd-for-grub2/
here’s my grub.cfg
cat grub.cfg#
# DO NOT EDIT THIS FILE
#
# It is automatically generated by grub2-mkconfig using templates
# from /etc/grub.d and settings from /etc/default/grub
#
### BEGIN /etc/grub.d/00_header ###
if -s $prefix/grubenv ]; then
load_env
fi
if "${next_entry}" ] ; then
set default="${next_entry}"
set next_entry=
save_env next_entry
set boot_once=true
else
set default="${saved_entry}"
fi
if x"${feature_menuentry_id}" = xy ]; then
menuentry_id_option="--id"
else
menuentry_id_option=""
fi
export menuentry_id_option
if "${prev_saved_entry}" ]; then
set saved_entry="${prev_saved_entry}"
save_env saved_entry
set prev_saved_entry=
save_env prev_saved_entry
set boot_once=true
fi
function savedefault {
if -z "${boot_once}" ]; then
saved_entry="${chosen}"
save_env saved_entry
fi
}
function load_video {
if x$feature_all_video_module = xy ]; then
insmod all_video
else
insmod efi_gop
insmod efi_uga
insmod ieee1275_fb
insmod vbe
insmod vga
insmod video_bochs
insmod video_cirrus
fi
}
if x$feature_default_font_path = xy ] ; then
font=unicode
else
insmod part_msdos
insmod btrfs
set root='hd0,msdos6'
if x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos6 --hint-efi=hd0,msdos6 --hint-baremetal=ahci0,msdos6 --hint='hd0,msdos6' 7b9d027c-1093-466c-8be4-aea8f94863bc
else
search --no-floppy --fs-uuid --set=root 7b9d027c-1093-466c-8be4-aea8f94863bc
fi
font="/usr/share/grub2/unicode.pf2"
fi
if loadfont $font ; then
set gfxmode=auto
load_video
insmod gfxterm
set locale_dir=$prefix/locale
set lang=POSIX
insmod gettext
fi
terminal_output gfxterm
insmod part_msdos
insmod ext2
set root='hd0,msdos12'
if x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos12 --hint-efi=hd0,msdos12 --hint-baremetal=ahci0,msdos12 --hint='hd0,msdos12' fc017ea6-21ae-4dd9-ac23-53756ffeb8f0
else
search --no-floppy --fs-uuid --set=root fc017ea6-21ae-4dd9-ac23-53756ffeb8f0
fi
insmod gfxmenu
loadfont ($root)/grub2/themes/openSUSE/DejaVuSans-Bold14.pf2
loadfont ($root)/grub2/themes/openSUSE/DejaVuSans10.pf2
loadfont ($root)/grub2/themes/openSUSE/DejaVuSans12.pf2
loadfont ($root)/grub2/themes/openSUSE/ascii.pf2
insmod png
set theme=($root)/grub2/themes/openSUSE/theme.txt
export theme
if x${boot_once} = xtrue ]; then
set timeout=0
elif sleep --interruptible 0 ; then
set timeout=8
fi
### END /etc/grub.d/00_header ###
### BEGIN /etc/grub.d/10_linux ###
menuentry 'openSUSE 13.1' --class 'opensuse-13-1' --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-simple-7b9d027c-1093-466c-8be4-aea8f94863bc' {
load_video
set gfxpayload=keep
insmod gzio
insmod part_msdos
insmod ext2
set root='hd0,msdos12'
if x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos12 --hint-efi=hd0,msdos12 --hint-baremetal=ahci0,msdos12 --hint='hd0,msdos12' fc017ea6-21ae-4dd9-ac23-53756ffeb8f0
else
search --no-floppy --fs-uuid --set=root fc017ea6-21ae-4dd9-ac23-53756ffeb8f0
fi
echo 'Loading Linux 3.14.0-23.gfa168d7-desktop ...'
linux /vmlinuz-3.14.0-23.gfa168d7-desktop root=UUID=7b9d027c-1093-466c-8be4-aea8f94863bc quiet quiet liveinstall resume=/dev/disk/by-id/ata-WDC_WD7500BPKT-00PK4T0_WD-WXF1E32MVUC9-part5 splash=silent quiet showopts
echo 'Loading initial ramdisk ...'
initrd /initrd-3.14.0-23.gfa168d7-desktop
}
submenu 'Advanced options for openSUSE 13.1' $menuentry_id_option 'gnulinux-advanced-7b9d027c-1093-466c-8be4-aea8f94863bc' {
menuentry 'openSUSE 13.1, with Linux 3.14.0-23.gfa168d7-desktop' --class 'opensuse-13-1' --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-3.14.0-23.gfa168d7-desktop-advanced-7b9d027c-1093-466c-8be4-aea8f94863bc' {
load_video
set gfxpayload=keep
insmod gzio
insmod part_msdos
insmod ext2
set root='hd0,msdos12'
if x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos12 --hint-efi=hd0,msdos12 --hint-baremetal=ahci0,msdos12 --hint='hd0,msdos12' fc017ea6-21ae-4dd9-ac23-53756ffeb8f0
else
search --no-floppy --fs-uuid --set=root fc017ea6-21ae-4dd9-ac23-53756ffeb8f0
fi
echo 'Loading Linux 3.14.0-23.gfa168d7-desktop ...'
linux /vmlinuz-3.14.0-23.gfa168d7-desktop root=UUID=7b9d027c-1093-466c-8be4-aea8f94863bc quiet quiet liveinstall resume=/dev/disk/by-id/ata-WDC_WD7500BPKT-00PK4T0_WD-WXF1E32MVUC9-part5 splash=silent quiet showopts
echo 'Loading initial ramdisk ...'
initrd /initrd-3.14.0-23.gfa168d7-desktop
}
### END /etc/grub.d/10_linux ###
### BEGIN /etc/grub.d/20_linux_xen ###
### END /etc/grub.d/20_linux_xen ###
### BEGIN /etc/grub.d/20_memtest86+ ###
menuentry 'openSUSE 13.1 Memtest' --class opensuse --class memtest86 --class gnu --class tools $menuentry_id_option 'memtest-fc017ea6-21ae-4dd9-ac23-53756ffeb8f0' {
insmod part_msdos
insmod ext2
set root='hd0,msdos12'
if x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos12 --hint-efi=hd0,msdos12 --hint-baremetal=ahci0,msdos12 --hint='hd0,msdos12' fc017ea6-21ae-4dd9-ac23-53756ffeb8f0
else
search --no-floppy --fs-uuid --set=root fc017ea6-21ae-4dd9-ac23-53756ffeb8f0
fi
echo 'Loading memtest ...'
linux16 /memtest.bin
}
### END /etc/grub.d/20_memtest86+ ###
### BEGIN /etc/grub.d/20_ppc_terminfo ###
### END /etc/grub.d/20_ppc_terminfo ###
### BEGIN /etc/grub.d/30_os-prober ###
### END /etc/grub.d/30_os-prober ###
### BEGIN /etc/grub.d/40_custom ###
# This file provides an easy way to add custom menu entries. Simply type the
# menu entries you want to add after this comment. Be careful not to change
# the 'exec tail' line above.
### END /etc/grub.d/40_custom ###
### BEGIN /etc/grub.d/41_custom ###
if -f ${config_directory}/custom.cfg ]; then
source ${config_directory}/custom.cfg
elif -z "${config_directory}" -a -f $prefix/custom.cfg ]; then
source $prefix/custom.cfg;
fi
### END /etc/grub.d/41_custom ###
### BEGIN /etc/grub.d/90_persistent ###
### END /etc/grub.d/90_persistent ###
I try to chroot from live DVD and then do grub2-mkconfig -o /dev/sda7/grub2/grub.cfg path path /boot/grub2 si not readable by grub on boot … I mounted both partition (roo and boot, binded /sys /proc but still no sucess
and I forget here’s my boot paritiion (/dev/sda7)
cd ../ && ls -la total 239840
drwxr-xr-x 5 root root 4096 Apr 6 08:25 .
drwxr-x---+ 3 root root 60 Apr 14 13:13 ..
-rw-r--r-- 1 root root 2681728 Feb 3 23:08 System.map-3.11.10-7-desktop
-rw-r--r-- 1 root root 2764530 Mar 18 03:39 System.map-3.13.6-19.g4727218-desktop
-rw-r--r-- 1 root root 2764530 Mar 24 12:48 System.map-3.13.6-20.g0509ce5-desktop
-rw-r--r-- 1 root root 2764949 Mar 27 23:58 System.map-3.13.7-21.ga68bc7c-desktop
-rw-r--r-- 1 root root 2798246 Apr 2 00:16 System.map-3.14.0-22.g79de0a7-desktop
-rw-r--r-- 1 root root 2798178 Apr 5 13:29 System.map-3.14.0-23.gfa168d7-desktop
-rw-r--r-- 1 root root 512 Feb 13 09:57 backup_mbr
lrwxrwxrwx 1 root root 1 Nov 6 15:36 boot -> .
-rw-r--r-- 1 root root 1484 Oct 18 06:48 boot.readme
-rw-r--r-- 1 root root 140316 Feb 3 22:11 config-3.11.10-7-desktop
-rw-r--r-- 1 root root 143734 Mar 18 02:43 config-3.13.6-19.g4727218-desktop
-rw-r--r-- 1 root root 143723 Mar 24 11:54 config-3.13.6-20.g0509ce5-desktop
-rw-r--r-- 1 root root 143723 Mar 27 22:11 config-3.13.7-21.ga68bc7c-desktop
-rw-r--r-- 1 root root 145895 Apr 1 22:17 config-3.14.0-22.g79de0a7-desktop
-rw-r--r-- 1 root root 145895 Apr 5 11:20 config-3.14.0-23.gfa168d7-desktop
drwxr-xr-x 2 root root 4096 Nov 6 15:36 grub
drwxr-xr-x 7 root root 4096 Apr 6 07:44 grub2
lrwxrwxrwx 1 root root 33 Apr 6 07:43 initrd -> initrd-3.14.0-23.gfa168d7-desktop
-rw------- 1 root root 25952424 Apr 6 07:43 initrd-3.11.10-7-desktop
-rw------- 1 root root 26035874 Apr 6 07:43 initrd-3.13.6-19.g4727218-desktop
-rw------- 1 root root 26035513 Apr 6 07:43 initrd-3.13.6-20.g0509ce5-desktop
-rw------- 1 root root 26037137 Apr 6 07:43 initrd-3.13.7-21.ga68bc7c-desktop
-rw------- 1 root root 26028091 Apr 6 07:43 initrd-3.14.0-22.g79de0a7-desktop
-rw------- 1 root root 26028030 Apr 6 07:43 initrd-3.14.0-23.gfa168d7-desktop
drwx------ 2 root root 16384 Feb 13 09:51 lost+found
-rw-r--r-- 1 root root 176760 Sep 21 2013 memtest.bin
-rw-r--r-- 1 root root 620544 Apr 6 07:41 message
-rw-r--r-- 1 root root 262119 Feb 3 23:20 symvers-3.11.10-7-desktop.gz
-rw-r--r-- 1 root root 299529 Mar 18 03:51 symvers-3.13.6-19.g4727218-desktop.gz
-rw-r--r-- 1 root root 299526 Mar 24 13:02 symvers-3.13.6-20.g0509ce5-desktop.gz
-rw-r--r-- 1 root root 299515 Mar 28 00:18 symvers-3.13.7-21.ga68bc7c-desktop.gz
-rw-r--r-- 1 root root 301247 Apr 2 00:39 symvers-3.14.0-22.g79de0a7-desktop.gz
-rw-r--r-- 1 root root 301247 Apr 5 13:50 symvers-3.14.0-23.gfa168d7-desktop.gz
-rw-r--r-- 1 root root 516 Feb 3 23:19 sysctl.conf-3.11.10-7-desktop
-rw-r--r-- 1 root root 516 Mar 18 03:51 sysctl.conf-3.13.6-19.g4727218-desktop
-rw-r--r-- 1 root root 516 Mar 24 13:02 sysctl.conf-3.13.6-20.g0509ce5-desktop
-rw-r--r-- 1 root root 516 Mar 28 00:17 sysctl.conf-3.13.7-21.ga68bc7c-desktop
-rw-r--r-- 1 root root 516 Apr 2 00:38 sysctl.conf-3.14.0-22.g79de0a7-desktop
-rw-r--r-- 1 root root 516 Apr 5 13:50 sysctl.conf-3.14.0-23.gfa168d7-desktop
-rw-r--r-- 1 root root 6039636 Feb 3 23:19 vmlinux-3.11.10-7-desktop.gz
-rw-r--r-- 1 root root 6253161 Mar 18 03:51 vmlinux-3.13.6-19.g4727218-desktop.gz
-rw-r--r-- 1 root root 6253012 Mar 24 13:01 vmlinux-3.13.6-20.g0509ce5-desktop.gz
-rw-r--r-- 1 root root 6253098 Mar 28 00:17 vmlinux-3.13.7-21.ga68bc7c-desktop.gz
-rw-r--r-- 1 root root 6306740 Apr 2 00:38 vmlinux-3.14.0-22.g79de0a7-desktop.gz
-rw-r--r-- 1 root root 6307237 Apr 5 13:50 vmlinux-3.14.0-23.gfa168d7-desktop.gz
lrwxrwxrwx 1 root root 34 Apr 6 07:42 vmlinuz -> vmlinuz-3.14.0-23.gfa168d7-desktop
-rw-r--r-- 1 root root 5179304 Feb 4 00:52 vmlinuz-3.11.10-7-desktop
-rw-r--r-- 1 root root 5330736 Mar 18 05:22 vmlinuz-3.13.6-19.g4727218-desktop
-rw-r--r-- 1 root root 5330800 Mar 24 16:58 vmlinuz-3.13.6-20.g0509ce5-desktop
-rw-r--r-- 1 root root 5330928 Mar 28 02:57 vmlinuz-3.13.7-21.ga68bc7c-desktop
-rw-r--r-- 1 root root 5375008 Apr 2 02:50 vmlinuz-3.14.0-22.g79de0a7-desktop
-rw-r--r-- 1 root root 5375424 Apr 5 17:17 vmlinuz-3.14.0-23.gfa168d7-desktop
On 2014-04-14 16:06, roberto68 wrote:
>
> so I did everything I needed (resized, moved my partitions), but now I’m
> getting error at grub : no such partition. I tried grub rescue but also
> with no sucess http://tinyurl.com/82jr76n
Forget it, and waste no more time: reinstall.
I assume that you did a full backup before doing such a dangerous
procedure as resizing partitions, so just reformat it all, reinstall,
and recover your files from that backup.
–
Cheers / Saludos,
Carlos E. R.
(from 13.1 x86_64 “Bottle” at Telcontar)
No you don’t, because the only reason someone might spend all that time trying is because they do not have a backup. 
On 2014-04-15 13:16, consused wrote:
>
> robin_listas;2637019 Wrote:
>>
>> I assume that you did a full backup before doing such a dangerous
>> procedure as resizing partitions…
>>
> No you don’t, because the only reason someone might spend all that time
> trying is because they do not have a backup.
Oh, you are naughty! :-))
–
Cheers / Saludos,
Carlos E. R.
(from 13.1 x86_64 “Bottle” at Telcontar)
I didn’t do backup cause I only resize (enlarge) home and move boot and whole root remained untouched (but no problem copying it from live CD session). But tas I explore it via Live session these parititons & files in them are just fine. so there must be a way to recover that grub that’s all I need - respectively what to type at that grub rescue prompt. I tried to install another suse to create another “clean” grub but installation stucked somewhere at copaying root filesys, maybe I’ll burn that live image on that dvd again
This won’t work. grub2-mkconfig cannot write to a device directly.
Use something like this:
grub2-mkconfig -o /wherever_you_mounted_boot_to/grub2/grub.cfg
Then run “grub2-install /dev/sda”. And maybe try to specify the “–force” option:
grub2-install --force /dev/sda
Anytime you do anything to a partitions you have the potential of messing it all up. Power fails you take the wrong option any number of things can go wrong and you can lose it all. Always backup before doing any brain surgery
On 2014-04-15 15:36, roberto68 wrote:
>
> I didn’t do backup cause I only resize (enlarge) home and move boot and
Only!!!? That’s a terrible death danger!
> whole root remained untouched (but no problem copying it from live CD
> session). But tas I explore it via Live session these parititons & files
> in them are just fine. so there must be a way to recover that grub
> that’s all I need - respectively what to type at that grub rescue
> prompt.
You can chroot your system from another, then try to run yast boot manager.
You can download this script:
which will find a lot of information about your current boot system.
–
Cheers / Saludos,
Carlos E. R.
(from 13.1 x86_64 “Bottle” at Telcontar)
when i’m adding menuentry in grub manually should set root be set to boot partition? i.e.
set root =hd0,msdos7
msdos7 - is my /boot paritition ; msdos6 - is /root