Discuss January 2019

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89 participants
88 discussions

NFS deny access
by Thomas Plant 09 Jan '19

09 Jan '19

Hello all, I have an NFS Server where I want give access to a specific address to a specific path. Problem is that I have some other shares active which I do not want the specific IP to not access it. The /etc/exports looks like the following: /nfs/Share1 10.10.*(rw) /nfs/Share2 10.10.*(rw) /kdnbckp/CS21 10.10.193.43(rw) The client on the last line (IP 10.10.193.43) I'd like to exclude from mounting the first two shares. How can I do this? 'man exports' does not give any hint if this is possible. Thanks, Thomas

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Squashfs as rootfs
by Marcin Trendota 09 Jan '19

09 Jan '19

Hello. I'm trying to add option to grub menu (amongst other options) to boot from squashfs image. But 'root=live:/path/tofile' doesn't work. I didn't find anything useful on the internet. Anybody can point me in right direction? Maybe better choice is to replace grub with isolinux? I have working solution with iso with squashfs booting through PXE, but i don't know how to do this in grub. TIA -- Marcin Trendota

1 0

How do I remove a kernel
by Robert Moskowitz 09 Jan '19

09 Jan '19

I have 4 kernels in /boot, leaving on 20MB which is not enough for the next one. I had installonly_limit= set at 5, as there were some kernel problems. After I got the error that there was not enough room for another kernel, I set installonly_limit= to 3 and did the update with --exclude=kernel* That worked to update everything else, but not remove the oldest kernel. How can I remove the oldest kernel to make room for the new one? thanks

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January 2019 community newsletter published
by Rich Bowen 08 Jan '19

08 Jan '19

The January 2019 community newsletter has now been published to the blog, at https://blog.centos.org/2019/01/centos-pulse-newsletter-january-2019-1901/ Thanks to everyone that helped get that put together. If you'd like to contribute to the February newsletter, please drop by the centos-promo list to get started! --Rich -- Rich Bowen - rbowen(a)redhat.com @CentOSProject // @rbowen 859 351 9166

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copy with bunzip2?
by Frank Cox 08 Jan '19

08 Jan '19

I have several pdf files as .pdf.bz2, as seen here: a/1.pdf.bz2 a/2.pdf.bz2 a/b/3.pdf.bz2 a/b/c/4.pdf.bz2 I want to copy everything in and under directory a to another computer, but I want the files to be decompressed on the destination machine: a/1.pdf a/2.pdf a/b/3.pdf a/b/c/4.pdf I could just use rsync and run a bunch of bunzip2 commands on the destination after the copying is completed, but perhaps there's a better way that would decompress the files in transit instead? -- MELVILLE THEATRE ~ Real D 3D Digital Cinema ~ www.melvilletheatre.com

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Re: [CentOS] has anyone a working example for a ks.cfg with two disks?
by Ralf Prengel 08 Jan '19

08 Jan '19

Hallo, this version is working here now. Ralf bootloader --append=" crashkernel=auto" --location=mbr --boot-drive=sda # Partition clearing information clearpart --all --initlabel --drives=sda,sdb # Disk partitioning information part / --fstype="ext4" --ondisk=sda --grow --size=1 part swap --fstype="swap" --ondisk=sda --size=8192 part /mnt/platte02 --fstype="ext4" --ondisk=sdb --size=1 --grow

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Re: [CentOS] has anyone a working example for a ks.cfg with two disks?
by Ralf Prengel 08 Jan '19

08 Jan '19

Zitat von Jack Bailey <jack(a)internetguy.net>: > Here's one of my kickstarts: > > zerombr > clearpart --all --initlabel --drives=$1,$2 Hallo, thanks but dowsn t work here. The installer doesn t accept $1 Ralf

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has anyone a working example for a ks.cfg with two disks?
by Ralf Prengel 08 Jan '19

08 Jan '19

Hallo, has anyone a working example for a ks.cfg with two disks? disk sda swap and / disk sdb /mnt/disk02 I found several ks.cfg examples but none is working here. Centos 7.6 is in use. Thanks Ralf

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Encrypting a file
by mark 08 Jan '19

08 Jan '19

I'm running C6. I want to encrypt a file or two, before I email it. Now, I have a very long passphrase - I used it a number of years ago. and that worked. It's about a paragraph long. For the last year or two, since one upgrade, kgpg popped up a window when I logged in. Until a few days ago, I just hit cancel. But, since this came up, I tried to run it. It got to "enter a passphrase"... and it FROZE MY ENTIRE WORKSPACE. I couldn't copy and paste from another window. I couldn't change focus to *anything*. So, given I want to use a long passphrase, I'd like to either copy and paste, or tell it to use a file. I'm not seeing any way to do this in the gpg manpage. Clues for the poor? mark

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can XFS filesystem recover rm'ed files?
by Dave Burns 07 Jan '19

07 Jan '19

Yes, I rm'ed the wrong directory. The disk has not been written to since, now mounted ro. Is it possible to recover the files without doing forensics on the whole partition? I know the UID and path. XFS is supposed to be pretty amazing, can I get it to do this? Thanks, Dave

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Discuss January 2019