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Jul
3
comment Does Grub2 support putting /boot on a RAID5 partition?
You can not use LILO to boot from a raid5 no matter what metadata format you use.
Jul
3
comment Does Grub2 support putting /boot on a RAID5 partition?
@CMCDragonkai, no, nor should you.
May
11
comment umount /home does not work
@sgmart, no, you go to single user mode either by using the 's' option when booting up, or init s or shutdown. Ctrl-alt-F1 just switches to the first text mode virtual terminal. I believe mint, like ubuntu, has the root account locked by default so this is the only way to log in as root ( you can't login as root on a virtual tty when not in single user mode ).
May
11
comment What filesystem metadata operations are actually journaled in ext4 & xfs?
@naelyn, oh yea... good point... might need to ask about that one on the linux-fsdevel mailing list... with hard links I believe you open and sync the directory containing it, maybe symlinks work the same?
May
11
comment What filesystem metadata operations are actually journaled in ext4 & xfs?
@naelyn, an fsync() will flush all blocks related to a file, including a non fast symlink.
May
8
comment Is it useful to setup RAID0 on laptop?
The speeds of the drives are more or less added.. whether that is worth it or not is a matter of opinion.
May
8
answered Can I convert an existing LVM VG to a stripe (RAID0 eq)?
May
6
awarded  Yearling
May
5
answered What filesystem metadata operations are actually journaled in ext4 & xfs?
Apr
30
comment Does tar actually compress files, or just group them together?
Actually an empty file will not consume 1kb. A 1-1023 byte file will.
Apr
22
comment What does exit 99 means?
@mikeserv, properly written scripts use set -e to enable error checking so you don't have to test every exit status yourself. Any program you call that returns non zero will be treated as an error and cause the script to abort. make will also automatically stop the build and report an error if it calls something that returns non zero, again, without you needing to explicitly test the value. In fact, your [ $? -eq 99 ] returns 0 for success and 1 for failure.
Apr
21
comment Large ext4 partition ridiculously slow when writing
@HaukeLaging, you got that backwards; -t flushes the kernel cache and actually measures the disk's real read speed, -T just reads what is already in the kernel cache.
Apr
21
comment What determines the maximum file size in ext2 file system
This limit was also overcome ages ago by the use of a flag in the inode that indicates that the i_blocks value is, in fact, in units of block size rather than 512 bytes. The triple indirect block structure though, can only address just over 4 TiB using a 4k block size.
Apr
18
comment What does exit 99 means?
They know it means failure because that is the convention for exit status: anything other than zero means something went wrong. The specifics of what what went wrong ( and this may be very minor and something you may want to ignore if you know the specifics ) are up to the application.
Apr
17
comment What does exit 99 means?
The shell, and most other tools, including make, treat any non zero exit value as an error.
Apr
17
answered How can I find out about “rootfs”
Apr
17
comment How can I find out about “rootfs”
On debian, /etc/mtab is a symlink to /proc/mounts. Otherwise, you would not see the rootfs at all.
Apr
17
comment What does exit 99 means?
Not quite - 99 is not zero, and so indicates that the program failed for some reason.
Apr
17
answered What is centos /root/core.* files? they eat my hard disk till it is full
Apr
17
comment I can see my LVM but I can't initialize it. Missing UUID of one of the disks
@Dalif, those device names are not stable and can change over a reboot, even if you don't add or remove any drives. Just because you gained an sdd when you added the new disk does not mean that drive is the new disk. Why would you think removing the new disk would change anything? You have unknown device because one of the old disks has been formatted and is no longer recognized.