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Nov
24
comment Non-journalled filesystem that allows instant power off?
Why do you not want a journaled filesystem?
Nov
21
comment How can I recover disk space shown by the difference in disk usage between ls and du
You seem to be asking two different questions: 1) How to "recover" space wasted due to block size. The answer to that is you don't. And 2) How to recover space used by a large directory you have no idea where it came from. That is quite obvious: delete it.
Nov
21
comment Why double ampersand chained conditions runs in background together the last one?
@Gilles, why not? Got a better idea?
Nov
21
comment Why double ampersand chained conditions runs in background together the last one?
@TiagoPimenta, ahh, I see now... edited with fix.
Nov
21
revised Why double ampersand chained conditions runs in background together the last one?
added 116 characters in body
Nov
21
answered Why double ampersand chained conditions runs in background together the last one?
Nov
21
comment Resizing NTFS partition on USB drive
No, I mean you don't have free space inside the partition, so you can't shrink it.
Nov
21
comment Resizing NTFS partition on USB drive
You don't have enough free space... you'll have to delete some things.
Nov
20
comment How to make an ext4 file writable on mounting by a user (not root)
@DutchArjo, only once. The permissions and ownership are stored on disk.
Nov
20
comment How can `dd` be used to right-shift data blocks?
The fact that it refuses to operate if the input and output are the same is probably a good indication that it isn't safe.
Nov
17
comment How is the display updated when the erase character is typed in a terminal emulator?
That is implemented in the real terminal, not the kernel driver. With a real hardware terminal, it handles local line buffering, echoing, and backspace, and only sends the finished line down the wire when you press enter.
Nov
17
comment How is the display updated when the erase character is typed in a terminal emulator?
This is true for the linux virtual console driver since it is emulating a real terminal on a VGA display, but is not true of real terminals, which is what the question was about
Nov
17
answered How to know list of directories under a filesystem?
Nov
17
comment LVM volume corrupted, can't be mounted after reboot
@NicolasRealini, last year I went with 3x Blues. They have perfectly respectable performance and reliability ( which is to say, quite a bit better than the greens and reds ). I run them in a mix of raid10 and raid5 so if one does die it won't bother me, and a linux raid10 in the offset layout gets me ~500 MB/s of sequential read, and the duplicate copies boost the performance of random reads a bit too. The red pro is really no different; they just charge more.
Nov
17
comment run btrfs balance with cron
That article is misleading. While it is true that btrfs df reports only chunk usage, which can be higher than actual usage if chunks are only partly used, df reports a proper amount of free space. Partially filled chunks don't matter so there is no reason to bother with a balance simply to make the output of btrfs df look nicer. In other words, free blocks are free blocks, whether they are part of a chunk or not; either way they are available for use by files on demand.
Nov
17
comment LVM volume corrupted, can't be mounted after reboot
@NicolasRealini, AFAICS, red is the same as green, only with a 3 year warranty instead of only 2. Both are only 5900 rpm drives. I recommend staying clear of both red and green.
Nov
16
comment run btrfs balance with cron
Balance is for when you add a new disk to the fs; it is not something you do on a regular basis.
Nov
16
answered LVM volume corrupted, can't be mounted after reboot
Nov
14
comment How can `dd` be used to right-shift data blocks?
@starfry, the only way I know of to do this in a generic way is to use the algorithm Emmanuel suggested ( work backwards from the end ), which is what gparted does.
Nov
14
answered How can `dd` be used to right-shift data blocks?