[ug-bosug] What is the /second_root slice? How do i get rid of it?

Saurabh Vyas Saurabh.Vyas at Sun.COM
Tue Feb 5 03:13:29 PST 2008


Hi Manish,

The second root slice what you see is present for the *live upgrade*.
As in new Solaris installer (caiman) you cannot specify the slices, it 
creates 15Gb of root slice & a second root slice (the rest space is left 
for /export/home)
To reclaim it you need to blow up your /second_root slice and then you 
can do growfs on /export/home.

HTH,
~Saurabh

Manish Chakravarty wrote:
> Hi BOSUG,
>
> I did a df -h of my system and found this:
> Filesystem             size   used  avail capacity  Mounted on
> /dev/dsk/c2t0d0s0       15G   7.0G   7.6G    48%    /
> /devices                 0K     0K     0K     0%    /devices
> /dev                     0K     0K     0K     0%    /dev
> ctfs                     0K     0K     0K     0%    /system/contract
> proc                     0K     0K     0K     0%    /proc
> mnttab                   0K     0K     0K     0%    /etc/mnttab
> swap                   2.8G  1004K   2.8G     1%    /etc/svc/volatile
> objfs                    0K     0K     0K     0%    /system/object
> sharefs                  0K     0K     0K     0%    /etc/dfs/sharetab
> /usr/lib/libc/libc_hwcap1.so.1
>                         15G   7.0G   7.6G    48%    /lib/libc.so.1
> fd                       0K     0K     0K     0%    /dev/fd
> swap                   2.8G    80K   2.8G     1%    /tmp
> swap                   2.8G    44K   2.8G     1%    /var/run
> /dev/dsk/c2t0d0s4       15G    15M    15G     1%    /second_root
> /dev/dsk/c2t0d0s7       18G   1.5G    16G     9%    /export/home
> /dev/dsk/c1t0d0s2      3.7G   3.7G     0K   100%    /media/SOL_11_X86s\
>
> I did not create a /second_root slice. Why is it there and what is it
> for?
>
> I dont want to waste 15 gigs of space on this slice. I want it for
> my /export/home. Is there any way to "reclaim" it?
>
> Thanks
> Manish
>
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