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Apr
11
comment Can kexec be built to a standalone binary, to be used where kexec was not built into the kernel?
Just for kicks check if maybe you could modify the mtd partition containing the U-boot env vars, but I'm sure that's read only too, right?
Apr
6
comment How to edit /etc/inittab?
From your question it sounds like you weren't saving before exiting Vi. After you are done editing in vi you need to save changes, typically with an [Esc] then w (to write changes), you can combine with q as follows: wq! (write, quit, and ! means don't confirm).
Apr
6
comment What are the platforms that Linux is being used frequently on besides x86?
I'd say after ARM, probably MIPS is the next most prevalent architecture Linux is installed upon due to DD-WRT.
Mar
26
answered What are considered utilities and applications?
Mar
15
answered Building GNU part of GNU/Linux
Feb
25
comment Is it mandatory to have a file system and MMU in Linux?
debian-handbook.info/browse/stable/sect.kernel-compilation.html is a good place to start, assuming you are using Debian or Debian-derived distro like Ubuntu. make menuconfig is where you select what is and isn't in the kernel (typically you can build X in to the kernel, build X as a module, or don't build it). You should take the time to just browse and read the help on items that interest you when in make menuconfig. Filesystems will be a module that you can choose to build into or leave out.
Feb
25
comment Is it mandatory to have a file system and MMU in Linux?
@Patrick - The Linux networking stack runs fine without an active userland (e.g. when the kernel has panicked), as far as filtering and forwarding is concerned, at least until your DHCP lease runs out...
Feb
24
answered Is it mandatory to have a file system and MMU in Linux?
Feb
12
answered Why does boot from SD card with my custom kernel result in “VFS: Cannot open root device”?
Feb
2
awarded  Revival
Feb
1
answered Is my system compromised or vulnerable to attacks
Feb
1
answered Why does `make install` not produce an rpm?
Jan
28
answered Syslog-ng failover: logserver to local file
Jan
23
answered Auto-delete LUKS Key-slots
Dec
31
awarded  Yearling
Dec
30
answered Will DVD+RW work on my laptop drive marked RW?
Dec
13
comment How to fake a filesystem that cannot be mounted by others
Something tells me, though I haven't looked at sources and am not sure, that you could simply modify the mount.ext4 (or other "filesystem-specific" mount command) command to not check for filesystem type when trying to mount, so that would defeat this.
Dec
10
answered Why would I use a rsync mirror?
Nov
19
comment If computers start counting at 0, why does the init process have a pid of 1?
Zero causes flags to be automatically set on most CPU's status registers when it is loaded in a register, enabling a branch to taken on it without specifically comparing/testing for it. Therefore it's very much used as a "sentinel" value, i.e. a value that means "invalid", "end of data", or "special case" here. So even though computers start counting at 0, there will be many cases where 1 is the first valid value for the application or data structure in question.
Nov
15
comment How can I extract the hash value of a LUKS device?
linux.die.net/man/8/cryptsetup - does the luksDump option do what you want?