Difference between revisions of "growing root partition"
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== Problem == | == Problem == | ||
| − | insufficient disk space to apply an upgrade. | + | insufficient disk space in /opt to apply an upgrade. |
O.S. : secure platform (splat) or gaia | O.S. : secure platform (splat) or gaia | ||
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'''Example''' | '''Example''' | ||
| − | + | [Expert@chkpfw1:0]# '''df -h''' | |
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Filesystem Size Used Avail Use% Mounted on | Filesystem Size Used Avail Use% Mounted on | ||
/dev/mapper/vg_splat-lv_current | /dev/mapper/vg_splat-lv_current | ||
| − | 4.9G 3.6G 1.1G 77% / | + | 4.9G 3.6G 1.1G 77% / <<< root does't have enough space for my 77.30 upgrade :( |
/dev/hda1 289M 24M 251M 9% /boot | /dev/hda1 289M 24M 251M 9% /boot | ||
tmpfs 217M 0 217M 0% /dev/shm | tmpfs 217M 0 217M 0% /dev/shm | ||
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| − | + | Check the volumn groups for Free space | |
| + | |||
| + | [Expert@chkpfw2:0]# '''vgdisplay | grep -i size''' | ||
| + | VG Size 18.69 GB | ||
| + | PE Size 32.00 MB | ||
| + | Alloc PE / Size 384 / 12.00 GB | ||
| + | Free PE / Size 214 / 6.69 GB <<< yay! I have some! | ||
| + | |||
| + | adding/growing the logical volume "container" | ||
[Expert@chkpfw2:0]# '''lvresize -L +6.69GB vg_splat/lv_current''' | [Expert@chkpfw2:0]# '''lvresize -L +6.69GB vg_splat/lv_current''' | ||
| − | |||
Rounding up size to full physical extent 6.72 GB | Rounding up size to full physical extent 6.72 GB | ||
Extending logical volume lv_current to 11.72 GB | Extending logical volume lv_current to 11.72 GB | ||
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[Expert@chkpfw2:0]# '''lvresize -l +214 vg_splat/lv_current''' | [Expert@chkpfw2:0]# '''lvresize -l +214 vg_splat/lv_current''' | ||
| − | |||
Extending logical volume lv_current to 11.69 GB | Extending logical volume lv_current to 11.69 GB | ||
Logical volume lv_current successfully resized | Logical volume lv_current successfully resized | ||
| − | verifying | + | verifying new volume group size |
[Expert@chkpfw2:0]# vgdisplay | grep -i -E "name|size" | [Expert@chkpfw2:0]# vgdisplay | grep -i -E "name|size" | ||
| − | |||
VG Name vg_splat | VG Name vg_splat | ||
VG Size 18.69 GB | VG Size 18.69 GB | ||
Revision as of 07:10, 4 December 2015
Problem
insufficient disk space in /opt to apply an upgrade.
O.S. : secure platform (splat) or gaia
Check Point versions: multiple
Solution
Use available, unallocated disk space. Newer Check Point version use LVM. Check Point often doesn't allocate it all. This not a bad thing. It is a common, best practice with LVM. This allows admins to easily grow partitions as needed using the free disk space. If you allocated it all up front, but needed one partition bigger, you would have to shrink one to grow another. This is more complicated. With root, it can't be shrunk while the system is running(it can be grown as we are about to see).
Example
[Expert@chkpfw1:0]# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/vg_splat-lv_current
4.9G 3.6G 1.1G 77% / <<< root does't have enough space for my 77.30 upgrade :(
/dev/hda1 289M 24M 251M 9% /boot
tmpfs 217M 0 217M 0% /dev/shm
/dev/mapper/vg_splat-lv_log
6.8G 3.7G 2.9G 57% /var/log
Check the volumn groups for Free space
[Expert@chkpfw2:0]# vgdisplay | grep -i size VG Size 18.69 GB PE Size 32.00 MB Alloc PE / Size 384 / 12.00 GB Free PE / Size 214 / 6.69 GB <<< yay! I have some!
adding/growing the logical volume "container"
[Expert@chkpfw2:0]# lvresize -L +6.69GB vg_splat/lv_current Rounding up size to full physical extent 6.72 GB Extending logical volume lv_current to 11.72 GB Insufficient free space: 215 extents needed, but only 214 available
that failed... specifying the increase in GB is less precise. So, lets use "extents"
[Expert@chkpfw2:0]# lvresize -l +214 vg_splat/lv_current Extending logical volume lv_current to 11.69 GB Logical volume lv_current successfully resized
verifying new volume group size
[Expert@chkpfw2:0]# vgdisplay | grep -i -E "name|size" VG Name vg_splat VG Size 18.69 GB PE Size 32.00 MB Alloc PE / Size 598 / 18.69 GB Free PE / Size 0 / 0
growing the file system to fill the "container"
[Expert@chkpfw2:0]# resize2fs /dev/mapper/vg_splat-lv_current resize2fs 1.39 (29-May-2006) Filesystem at /dev/mapper/vg_splat-lv_current is mounted on /; on-line resizing required Performing an on-line resize of /dev/mapper/vg_splat-lv_current to 3063808 (4k) blocks. The filesystem on /dev/mapper/vg_splat-lv_current is now 3063808 blocks long.
viewing newly allocated disk space
[Expert@chkpfw2:0]# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/vg_splat-lv_current
12G 3.6G 7.2G 33% /
/dev/hda1 289M 24M 251M 9% /boot
tmpfs 217M 0 217M 0% /dev/shm
/dev/mapper/vg_splat-lv_log
6.8G 2.2G 4.3G 34% /var/log
So, we grew root while the system had it mounted and was running from it. Thank you LVM!
