Posts for the month of June 2003
Ghost, ext2 and ext3, convert ext3 -> ext2
- Ghost 7 doesn't do ext3. I had a hint of this moving from 30G to 40G but it is now verified. It makes
fsck.ext3
core dump. Not a pretty sight. I was very afraid that I lost my firewall forever.- You can fool 'mount' but not 'fsck'. You can do '
mount -t ext2
' to mount ext3 as ext2. If you do 'fsck -t ext2
' on corrupted ext3, it will still crash knowing it is ext3. - '
tune2fs -O ^has_journal /dev/hda7
' will convert an ext3 partition (eg hda7) to ext2. Since Ghost copies ext3 as ext2 (which corrupts the special journal) this is required.
- You can fool 'mount' but not 'fsck'. You can do '
Ghost and ext3
bad = I am about to try to resize an ext3 partition. Ghost hosed that job up so bad that fsck actually SegFault'd!
http://www.gnu.org/software/parted/parted.html
http://www.gnu.org/manual/parted-1.6.1/html_mono/parted.html
Stupid Linux trick - virtual partition
Stupid Linux trick number ###? - Making a virtual partition. Kinda the opposite of what I want to do.
mkdir /home/foo dd if=/dev/zero of=/home/foo/image bs=1024 count=10240 mkfs.ext3 -F /home/foo/image mount -t ext3 /home/foo/image /home/foo -o loop chown foo /home/foo
This creates a 10MB home 'directory' for the user named foo. No way for them to get bigger (well, /tmp but that is beyond the scope of this example).