8 More Discussions You Might Find Interesting
1. UNIX for Beginners Questions & Answers
Hello,
I am on a Mac and trying to clean up some monthly files with a very simple SED:
sed '3,10d;/<ACROSS>/,$d' input.txt > output.txt
(from the input, delete lines 3 - 10; then delete from the line containing <ACROSS> to the end of the file)
then output to output.txt
Even when I try... (2 Replies)
Discussion started by: verbatim
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2. Red Hat
Hi,
:wall:
I am not able to run any utility command in Redat, Please see the below example and suggest me how I shall run this type of command.
$ su
Password:
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3. AIX
Hi all,
We dont have access to aix source code and i have a doubt.
The flag SC_NO_RESERVE, is it got to do anything with the failover?
If the flag is set the paths are going to failed state. If flag is not set everything comes up fine after failover.
Thanks in advance for helping
... (2 Replies)
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4. Shell Programming and Scripting
I need your help please.
In a production system, i've seen many running process as follow:
sh -c ./pathname/shellname
what exactly the flag option -c is used for?
ive tried to look at the man page, but it doesnt say much.
ill appreciate yor help. Thanks (4 Replies)
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5. UNIX for Dummies Questions & Answers
I've used "mailx -r return@address" before many times for automated scripts, but when I try to use it on FreeBSD, I get "mailx: illegal option -- r". Is there another version of mailx I should be using to get this to work? The full command I'm trying to run is:
mailx -s "Load Results $(date... (1 Reply)
Discussion started by: superdelic
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6. Solaris
Hi,
We are porting our application from 32bit to 64bit.
We tried -xarch=v9, -xarc=v9a and -xport64=full options so that compiler to issue 64bit porting warnings.
But we are not getting any porting warninings
WE are using CC 5.5 compiler on sparc-solaris m/c.
Please tell us some powerful... (0 Replies)
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7. UNIX for Dummies Questions & Answers
I extracted the ISO files of Linux to CD-R's but when I rebooted my computer, the CD's can't be read ( I had changed the setup to boot from CD). What could be the possible reasons? (2 Replies)
Discussion started by: whutes
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8. Linux
Hi,
I'm planning to move all my shell scripts from Unix to Linux.
currently in unix i have used the mailx command with the options -r & -s
eg., mailx -s "Hai" -r "xyz@abc.com" < abc.txt
But, if i move the scripts to linux i do not have the option -r in the mail command.
What should... (3 Replies)
Discussion started by: mpvenkat
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KERNEL-INSTALL(8) kernel-install KERNEL-INSTALL(8)
NAME
kernel-install - Add and remove kernel and initramfs images to and from /boot
SYNOPSIS
kernel-install COMMAND KERNEL-VERSION [KERNEL-IMAGE]
DESCRIPTION
kernel-install is used to install and remove kernel and initramfs images to and from /boot.
kernel-install will execute the files located in the directory /usr/lib/kernel/install.d/ and the local administration directory
/etc/kernel/install.d/. All files are collectively sorted and executed in lexical order, regardless of the directory in which they live.
However, files with identical filenames replace each other. Files in /etc/kernel/install.d/ take precedence over files with the same name
in /usr/lib/kernel/install.d/. This can be used to override a system-supplied executables with a local file if needed; a symbolic link in
/etc/kernel/install.d/ with the same name as an executable in /usr/lib/kernel/install.d/, pointing to /dev/null, disables the executable
entirely. Executables must have the extension ".install"; other extensions are ignored.
An executable should return 0 on success. It may also return 77 to cause the whole operation to terminate (executables later in lexical
order will be skipped).
COMMANDS
The following commands are understood:
add KERNEL-VERSION KERNEL-IMAGE
kernel-install creates the directory /boot/MACHINE-ID/KERNEL-VERSION/ and calls executables from /usr/lib/kernel/install.d/*.install
and /etc/kernel/install.d/*.install with the arguments
add KERNEL-VERSION
/boot/MACHINE-ID/KERNEL-VERSION/ KERNEL-IMAGE
The kernel-install plugin 50-depmod.install runs depmod for the KERNEL-VERSION.
The kernel-install plugin 90-loaderentry.install copies KERNEL-IMAGE to /boot/MACHINE-ID/KERNEL-VERSION/linux. It also creates a boot
loader entry according to the boot loader specification in /boot/loader/entries/MACHINE-ID-KERNEL-VERSION.conf. The title of the entry
is the PRETTY_NAME parameter specified in /etc/os-release or /usr/lib/os-release (if the former is missing), or "Linux KERNEL-VERSION",
if unset. If the file initrd is found next to the linux file, the initrd will be added to the configuration.
remove KERNEL-VERSION
Calls executables from /usr/lib/kernel/install.d/*.install and /etc/kernel/install.d/*.install with the arguments
remove KERNEL-VERSION /boot/MACHINE-ID/KERNEL-VERSION/
kernel-install removes the entire directory /boot/MACHINE-ID/KERNEL-VERSION/ afterwards.
The kernel-install plugin 90-loaderentry.install removes the file /boot/loader/entries/MACHINE-ID-KERNEL-VERSION.conf.
EXIT STATUS
If every executable returns 0 or 77, 0 is returned, and a non-zero failure code otherwise.
FILES
/usr/lib/kernel/install.d/*.install /etc/kernel/install.d/*.install
Drop-in files which are executed by kernel-install.
/etc/kernel/cmdline /proc/cmdline
The content of the file /etc/kernel/cmdline specifies the kernel command line to use. If that file does not exist, /proc/cmdline is
used.
/etc/machine-id
The content of the file specifies the machine identification MACHINE-ID.
/etc/os-release /usr/lib/os-release
The content of the file specifies the operating system title PRETTY_NAME.
SEE ALSO
machine-id(5), os-release(5), Boot loader specification[1]
NOTES
1. Boot loader specification
https://www.freedesktop.org/wiki/Specifications/BootLoaderSpec
systemd 237 KERNEL-INSTALL(8)