I have moved swap to its own partition using this commands:
... it turned out, that having swap as a plane file in /usr was
not a good decission, we deleted (after making DUMPS) the 'ssdusrfs'
again, created swap and re-created 'ssdusrfs'; this must be done while
/dev/gpt/ssdusrfs is not mounted!
# gpart show -l ada0
=> 40 488397088 ada0 GPT (233G)
40 1024 1 ssdboot (512K)
1064 984 - free - (492K)
2048 4194304 2 ssdrootfs (2.0G)
4196352 4194304 3 ssdvarfs (2.0G)
8390656 480006144 4 ssdusrfs (229G)
488396800 328 - free - (164K)
be carefully with the correct number of the index, in our case 4; check
the output of 'gpart show -l ada0' before doing this:
# gpart delete -i 4 ada0
create the swap partition:
# gpart add -t freebsd-swap -l ssdswap -a 1m -s 8g ada0
and the rest is our 'ssdusrfs' again:
# gpart add -t freebsd-ufs -l ssdusrfs -a 1m ada0
# newfs -U -t /dev/gpt/ssdusrfs
the new /etc/fstab should look like this:
# Device Mountpoint FStype Options Dump Pass#
/dev/gpt/ssdswap none swap sw 0 0
/dev/gpt/ssdrootfs / ufs rw 1 1
/dev/gpt/ssdvarfs /var ufs rw 2 2
tmpfs /tmp tmpfs rw,mode=01777 0 0
/dev/gpt/ssdusrfs /usr ufs rw 2 2
we need gzip and some shared libs (which normaly are in /usr); I copied
them on some other system into the externals disk where the DUMP is:
# cp -p /usr/bin/gzip /usr/lib/liblzma.so.5 /usr/lib/libbz2.so.4 /mnt
now mount and restore the DUMP:
# mount tmpfs
# mount /usr
# cd /usr
# mount -o ro /dev/da0s2a /mnt
# LD_LIBRARY_PATH=/mnt export LD_LIBRARY_PATH
# gzip -dc /mnt/e6330/dumpse6330-20160726/usr.dmp.gz | restore -x -f -
# umount /mnt
# reboot
--
Matthias Apitz, ✉ g...@unixarea.de, ⌂ http://www.unixarea.de/ ☎
+49-176-38902045
"Wer übersieht, dass wir uns den anderen weggenommen haben und sie uns
wiederhaben wollen,
kann von den Kämpfen der letzten Tage keinen verstehen. Und kann natürlich auch
keinen
dieser Kämpfe bestehen." Hermann Kant in jW 1.10.1989
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