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(/var/run and /var/lock)
(dracut is fun)
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== dracut ==
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The `dracut` utility, used to create the initramfs image used during boot, can now create a uefi bootable executable. The argument "--uefi" allows dracut to create a single UEFI executable, including an EFI stub, kernel, and initramfs.
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= systemd =
 
'''systemd''' is a system and service manager,  replacement for SysVinit and Upstart. After a six months shift, during which it has been more granularly tested, Fedora 15 brings in, by default, a new system daemon whose code is designed from scratch, with the objective to take the maximum advantage offered by modern Linux kernel.  
 
With '''systemd''', Fedora 15 boots-up faster, particularly on SSD; native systemd service configuration files (or units) are much easier to understand and configure compared to sysvinit scripts, as systemd uses <code>.service</code> files instead of bash script; all daemons are sorted into their own Linux cgroups, which you may explore beneath <code>/cgroup/systemd</code> in the file system hierarchy; administrative features of the init system are considerably extended.
 
Refer to https://fedoraproject.org/wiki/Systemd for more complete information on systemd in Fedora.
 
=== Developer ===
 
Lennart Poettering (lpoetter AT redhat.com)
 
= 4kB Sector disk boot support =
 
Booting 4kB sector disks in UEFI environments is now supported.
 
== /var/run and /var/lock ==
 
/var/run and /var/lock are now mounted from tmpfs, and hence emptied on reboot. Applications must ensure to recreate their own files/dirs on startup, and cannot rely that doing this at package installation will suffice. It is possible to use systemd's tmpfiles.d/ mechanism to recreate directories and files beneath /var/run and /var/lock on boot, if necessary. See tmpfiles.d(5) for details (http://0pointer.de/public/systemd-man/tmpfiles.d.html).
 


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Revision as of 01:11, 28 August 2015

dracut

The dracut utility, used to create the initramfs image used during boot, can now create a uefi bootable executable. The argument "--uefi" allows dracut to create a single UEFI executable, including an EFI stub, kernel, and initramfs.

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