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bio website bit.ly/GFscreener11
location stackoverflow.com@askmarcos.com
age
visits member for 2 years, 4 months
seen Apr 14 at 11:44

Pioneers are the ones with arrows in their backs.

Investment Portfolio Software, Trade Automation

Designer of infinite compression algorithms, and other research projects


Feb
2
revised How can I do a “copy if changed” operation?
cygwin comment
Feb
2
comment How can I do a “copy if changed” operation?
-times does that for me. Unison has a dry-run mode too, me thinks.
Feb
2
answered How can I do a “copy if changed” operation?
Feb
1
revised changing default shell to /bin/bash of at job scheduler like in CRON
test result
Feb
1
comment how to use “Unusable” sectors outside defined partition boundaries
@Psusi LVMs are great. Back in my datacenter days I'd stack them on top of RAID 5 arrays. My goal was to achieve a system in which storage devices could be added/replaced/even removed transparently to a live running OS, perceived only as a capacity change or tmp slowdown. Lustre fs does that, used by China's Tianhe-1A supercomputer among others. Word to the wise, I learned to keep it simple for boot&root drives though :)
Feb
1
comment how to use “Unusable” sectors outside defined partition boundaries
Now, that's getting closer to a transparent sort of approach I was thinking...didn't realize losetup had that -o start option. Combining that with a quick check at system start where the last partition ends and how many sectors are left on the block device is trivial....Lo and behold, I could then assign a consistent device path to harness that (tmp) space across all my servers with diff disks...nice. To be used for small backups, keep state information, and of course "secret" stuff outliving a possible fs reformat, and "safe" being beyond the reach of partitions. No extra kernel mod needed.
Feb
1
awarded  Supporter
Feb
1
comment how to use “Unusable” sectors outside defined partition boundaries
All this is true though kinda what I had in mind by "inconvenient" :) Plus I'm looking to avoid any fs structure altogether...remember how more storage a 1.44MB floppy used to let us access in "raw" mode?
Feb
1
comment how to use “Unusable” sectors outside defined partition boundaries
Right. In my case they're deliberate, and I intend on resizing 2 and 3 around, or merging, so that 13GB void is off limits. Part.tables themselves are so wasteful, like most disk meta data we're used to.
Jan
31
asked changing default shell to /bin/bash of at job scheduler like in CRON
Jan
31
awarded  Editor
Jan
31
revised Why do some commands 'hang' the terminal until they've finished?
better method added
Jan
31
comment Why do some commands 'hang' the terminal until they've finished?
A slightly less convoluted way to achieve that I began using is at now <<< "(cmd1; cmd2; etc.) &> logfile.log"
Jan
31
awarded  Student
Jan
31
comment How to save a GNOME 3 session
Update: even with this setting, not really, yet, if at all in Gnome3/Unity. Fuller discussion at askubuntu.com/a/78692/38636
Jan
31
asked how to use “Unusable” sectors outside defined partition boundaries
Jan
28
answered How to save a GNOME 3 session
Dec
27
answered Restore /etc/ configuration files from the default
Dec
26
awarded  Teacher
Dec
26
answered Why do some commands 'hang' the terminal until they've finished?