James, Thanks a lot for you suggestion! In fact, I turned off the SElinux because of lots of warning/error messages were added in my /var/log/messages when I turned it on. SElinux may be still in its early stage and I don't have too much time to debug stuff. As far as Access control list (ACLs) is concerned, I don't have it currently, But I know that ACLs on Solaris are pretty cool, so definitely I will play with ACLs on Linux shortly. Thanks. --- James Wilkinson <fedora@xxxxxxxxxxxxxxxxxxx> wrote: > Robinson Tiemuqinke wrote: > > I'm doing FC1 to FC4 upgrade these days and I > find > > that the ext3 file system features of FC1 and FC4 > are > > different. > > > > For FC4, there are three more ext3 file system > > features are on: they are ext_attr, resieze_inode, > and > > dir_index. > > > > FC4: > > > > Filesystem features: has_journal ext_attr > > resize_inode dir_index filetype needs_recovery > > sparse_super large_file > > > > FC1: > > Filesystem features: has_journal filetype > > needs_recovery sparse_super large_file > > > > So How do I add these 3 ext3 features to untouched > > data partitions like /home after my server is > upgraded > > to FC4? Do I have to do it manually? or the > upgrade > > will do it for me automatically? I'm afraid of > losing > > precious data but still like to have cool new > > features. > > > > Any suggestions are greatly welcomed. > > First suggestion: if your data is precious, do a > backup. Make sure it's > good *before* you do the update. > > To be honest, I'd do the upgrade then worry about > the features. I'm > pretty sure the FC upgrade does them automatically, > but it's been a > while since I checked. > > Dir_index is indexed directory support: several > years back, Dave Jones > wrote: > > EXT3. > ~~~~~ > - The ext3 filesystem has gained indexed > directory support, which > offers considerable performance gains when > used on filesystems > with directories containing large numbers of > files. > - In order to use the htree feature, you need at > least version > 1.32 of e2fsprogs. > - Existing filesystems can be converted using > the command > > tune2fs -O dir_index /dev/hdXXX > > See http://lwn.net/Articles/28765/ . > > Resize_inode is only of use if the filesystem is in > a logical volume > manager which allows a filesystem to be resized. One > upgraded from FC1 > won't be. But, as before, you can run > tune2fs -O resize_inode /dev/hdXXX > to add it. > > Ext_attr, extended attributes, are necessary for > SELinux support and > access control lists. I wouldn't recommend turning > SELinux off > permanently, but if the worst comes to the worst, > you can turn it off > temporarily at the grub prompt, boot, add ext_attr, > touch /.autorelabel, > and reboot. The system will relabel everything on > reboot. > > You can check the attributes on an ext3 filesystem > with > tune2fs -l /dev/hdXX > But you probably knew that anyway. > > Hope this helps, > > James. > > -- > E-mail address: james | "But alas, we don't need a > car, so I have a bus > @westexe.demon.co.uk | timetable and one day the > buses will read it too." > | -- Telsa Gwynne > > -- > fedora-list mailing list > fedora-list@xxxxxxxxxx > To unsubscribe: > https://www.redhat.com/mailman/listinfo/fedora-list > __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com
