Hi all
Is it ok to umount the / (root) file system?
Because recently i had extend the swap space by add the cylinders,
now only found that the cylinders is overlap with the root. Is it ok for future server operation?
partition> print
Current partition table (original):
Total disk cylinders available: 8921 + 2 (reserved cylinders)
Part Tag Flag Cylinders Size Blocks
0 root wm 67 - 1955 14.47GB (1889/0/0) 30346785
1 swap wu 1 - 132 1.01GB (132/0/0) 2120580
2 backup wm 0 - 8920 68.34GB (8921/0/0) 143315865
3 unassigned wm 0 0 (0/0/0) 0
4 unassigned wm 0 0 (0/0/0) 0
5 unassigned wm 0 0 (0/0/0) 0
6 unassigned wm 0 0 (0/0/0) 0
7 home wm 1956 - 8920 53.35GB (6965/0/0) 111892725
8 boot wu 0 - 0 7.84MB (1/0/0) 16065
9 unassigned wm 0 0 (0/0/0) 0
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No, you obviously can't unless you are using an OS running on a different root, like in faisafe mode boot.
Ouch. Your system is ready to self destroy at any time.
Shutdown it as soon as possible and fix the partition table.
If that machine uses the swap cylinders that are overlapping your root slice you can kiss any data on them goodbye. The only way to unmount root is to shutdown the system. Do what jilliagre says.
You do not have to reboot. Run "swap -d /dev/dsk/c0t0d0s1" (or whatever the appropriate device is) ASAP, though, to remove that swap device.
Then fix the partition table.
Thanks all, i had fixed the partition table.
and increase the swap size by Adding File System swap
Part Tag Flag Cylinders Size Blocks
0 root wm 67 - 804 5.65GB (738/0/0) 11855970
1 swap wu 1 - 66 517.72MB (66/0/0) 1060290
2 backup wm 0 - 8920 68.34GB (8921/0/0) 143315865
3 unassigned wm 0 0 (0/0/0) 0
4 unassigned wm 0 0 (0/0/0) 0
5 unassigned wm 0 0 (0/0/0) 0
6 unassigned wm 0 0 (0/0/0) 0
7 home wm 805 - 8920 62.17GB (8116/0/0) 130383540
8 boot wu 0 - 0 7.84MB (1/0/0) 16065
9 unassigned wm 0 0 (0/0/0) 0
# swap -l
swapfile dev swaplo blocks free
/dev/dsk/c2t0d0s1 31,385 8 1060280 1060280
/opt/myswapfile - 8 1048568 1048568
---------- Post updated at 10:47 AM ---------- Previous update was at 10:34 AM ----------
another question,
if i wanna increase the root Cylinders, how to do that?
Buy another disk, move /export there and grow / size.