Mailinglist Archive: opensuse (982 mails)

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Re: [opensuse] Getting rid of systemd and putting sysv back
On Sun, Sep 28, 2014 at 04:57:26PM -0400, Felix Miata wrote:
Ruben Safir wrote on 2014-09-28 04:32 (UTC-0400):

because it has to know in what order to umount them

init systems don't need to unmount anything but the boot image
sometimes.

You should look up the what sysvinit did. Hint: an init system is not only a
startup system.

It just needs to to store information so that the machine can BOOT
and then mount all mount pointed listed in fstab

And what exactly do you think is responsible for unmounting at shutdown time?



Pull the plug and see if it matters. Or are you implying run level
changes which are obviously handled quite adequately just like terminals
and display systems, authorizations, and other services....

Not through init or mount, but by the runing for mostly bourn scripts in
the init directory and sylinked as S01 S02 etc. Do you need a rundown
on how inittab works? It works by running, spawning something and then
goign away.

Here is a rundown of some things to read

http://www.tldp.org/HOWTO/Remote-Serial-Console-HOWTO/
http://www.tldp.org/HOWTO/Modem-HOWTO-13.html#ss13.3
ftp://metalab.unc.edu/pub/Linux/system/serial/!INDEX.html


Here download this, read it and install it. It will give you a decent
idea what the hell is going on here

ftp://metalab.unc.edu/pub/Linux/system/serial/getty/getty_ps-2.1.1.tar.gz

It will walk you through the whole system, more or less and teach you
HOW your computer actually works, or did work..



Look at all this crap in the output now:

ruben@workstation:~> mount
devtmpfs on /dev type devtmpfs
(rw,relatime,size=943908k,nr_inodes=235977,mode=755)
tmpfs on /dev/shm type tmpfs (rw,relatime)
tmpfs on /run type tmpfs (rw,nosuid,nodev,relatime,mode=755)
devpts on /dev/pts type devpts (rw,relatime,gid=5,mode=620,ptmxmode=000)
/dev/sda2 on / type ext4 (rw,relatime,data=ordered)
proc on /proc type proc (rw,relatime)
sysfs on /sys type sysfs (rw,relatime)
securityfs on /sys/kernel/security type securityfs
(rw,nosuid,nodev,noexec,relatime)
tmpfs on /sys/fs/cgroup type tmpfs (rw,nosuid,nodev,noexec,mode=755)
cgroup on /sys/fs/cgroup/systemd type cgroup
(rw,nosuid,nodev,noexec,relatime,xattr,release_agent=/usr/lib/systemd/systemd-cgroups-agent,name=systemd)
pstore on /sys/fs/pstore type pstore (rw,nosuid,nodev,noexec,relatime)
cgroup on /sys/fs/cgroup/cpuset type cgroup
(rw,nosuid,nodev,noexec,relatime,cpuset)
...yada yada...

I agree. I solved it long ago with an alias in .bashrc that filters out the
junk and leaves a result resembling the (useful) output from a decade ago, HD
volumes plus nfs and samba shares.
--
"The wise are known for their understanding, and pleasant
words are persuasive." Proverbs 16:21 (New Living Translation)

Team OS/2 ** Reg. Linux User #211409 ** a11y rocks!

Felix Miata *** http://fm.no-ip.com/
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