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Red Hat Enterprise Linux 7 Beta

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Re: Red Hat Enterprise Linux 7 Beta

#91
post #47

Wow, XFS by default, is there any other distro that uses it by default? Makes me miss my old SGI machines...

I remember using XFS some years ago. It was blazing fast for anything involving large files.

It also had a bug, in that a power failure or kernel crash was liable to truncate some freshly-written open files to zero size. Anyone knows if this problem has been eliminated?

Re: Red Hat Enterprise Linux 7 Beta

#92
post #56
post #47

Wow, XFS by default, is there any other distro that uses it by default? Makes me miss my old SGI machines...

seriously recommend people who care their data on disk to use ext4. http://lwn.net/Articles/476263/ XFS behaves not so well on power failure case.

That is pretty much 12 months old does it still apply?

Re: Red Hat Enterprise Linux 7 Beta

#93
post #60

Earlier quoted context omitted.

Here's a background piece on containers that I wrote a few months back: http://bitmason.blogspot.com/2013/09/what-are-containers-any...

Thanks. FYI, I just posted this to HN [1]. Seeing as you put in all this effort, you should have people reading it, outside this thread. Looks like you made the front page too! [1] https://news.ycombinator.com/item?id=6889679

Thanks! I was wondering where my piece popped up from :-)

Re: Red Hat Enterprise Linux 7 Beta

#94
post #71
post #55

Earlier quoted context omitted.

Hopefully we will see some type of GUI to create containers and manage cgroups. The GUI for libvirt is called virt-manager: http://virt-manager.org/

It can be even more seamless and convenient than that with Systemd. https://fedoraproject.org/wiki/Features/SystemdLightweightCo... I’m not sure what Systemd version they’ll end up shipping though. The best part about Systemd is that the default framework for launching and monitoring services is essentially LXC without the padding (extra PID0 etc). This means every service can benefit and there’s no need for the unne…

systemd-nspawn isn't recommended for production use. I can't tell you why that is, but if you search for it, you'll find a few places where Lennart Poettering recommends libvirt-lxc for deployment (which is completely unrelated to the other "LXC" project).

This means every service can benefit and there’s no need for the unnecessary abstraction

Of course you could run software on bare metal ;-) But containers are a nice way to ship whole projects including the dependencies. Especially if you deploy to lots of machines.

Re: Red Hat Enterprise Linux 7 Beta

#95

I'm happy that MariaDB 5.5 is replacing MySQL but not so happy that Thunderbird is being removed in favor of Evolution. XFS is the default filesystem. "Multiple required authentications" in OpenSSH. Nifty.

It's probably because Mozilla announced that Thunderbird is now in maintenance mode. They do not plan to add features or make major changes anymore.

To some that may mean Thunderbird is complete and mature, but RedHat must believe that Thunderbird is now a dead end.

https://wiki.mozilla.org/Thunderbird/New_Release_and_Governa...

Re: Red Hat Enterprise Linux 7 Beta

#96
post #87

Earlier quoted context omitted.

Fedora ships a whole bunch of different spins, including desktop flavors. http://spins.fedoraproject.org/

Did they always? I remember it usually being as simple as installing the RPMs, and running the switchdesk utility. I always had to do that (or generally something more involved because of my choice) to run FVWM2.

Ubuntu also allows you to just install the packages for a different desktop; the differently branded install CDs are mostly for people who come from windows or OSX and thus believe that the desktop == the OS and it's impossible to change once installed :P

Re: Red Hat Enterprise Linux 7 Beta

#97
post #89

Earlier quoted context omitted.

I had to boot from an .iso and mount up the filesystem to reset it. Also disabled selinux on reboot. If you find it out, please post, I'm curious myself.

I mounted it (by the ways of qemu-nbd and so forth) and chrooted into it. It seems like there are no accounts with a valid password in it..

Based on https://access.redhat.com/site/solutions/641193 the root account is disabled but sudo is granted to the uid 'cloud-user'. Basically, it is configured to use cloud-init and be provisioned ssh keys.

If a root password is required, the KB recommends using 'guestfish --rw -a ', mounting the filesystem, and running vi against /etc/shadow.

Re: Red Hat Enterprise Linux 7 Beta

#99
post #65
post #8

This is very exciting. I know until it gets all the government certs and rubber stamps I won't be able to use it at work but if it is out the ball can start rolling as they say. Here is the list of all the detail (tech notes): https://access.redhat.com/site/documentation/en-US/Red_Hat_E... You can see updated and deprecated packages as well as issues so far in beta.

Which certs are most important these days for govt use? Or does it depend on which department you're going for?

There's DIACAP for DoD: http://en.wikipedia.org/wiki/Department_of_Defense_Informati...

Re: Red Hat Enterprise Linux 7 Beta

#100
post #54
post #47

Wow, XFS by default, is there any other distro that uses it by default? Makes me miss my old SGI machines...

I was struck by that too, and came here to make the same comment. Why do you suppose they went with XFS? Ext4 seems like the defacto file system these days, but I know a lot of people seem to prefer XFS for one reason or another. It's a surprise to me that RHEL decided to default too it. Anybody care to shed some light?

Their gluster server offering also uses XFS, so probably for support reasons, they saw XFS had better long term support for both sets of users.
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