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install woes
by Chuck Campbell 13 Apr '15

13 Apr '15

I'm really at a loss. I had 5.11 running on this machine, from this physical boot disk, until I stepped on /bin the other day. I've tried installing Centos 5.10 and 5.11 to this Seagate 1TB drive. Both installs run perfectly, but when I try to reboot, grub says Filesystem type unknown, partition type 0xee googling this indicates that the disk has a GUID partition table. This must have been done by the installer??? If so, why doesn't it get the boot loader set up correctly? Sigh, So stage two of the saga, I thought I would try to install CentOS 6.5 (I had the dvds burned already). It boots, but claims the install image is corrupt. I re-downloaded CentOS 6.6, verified the checksums and burned a new dvd set. it boots, but when I test the media, it says the same thing (install image has errors). If I try to skip media checks, it just ejects the disk and says insert the CentOS disk. I burned a new set of disks, identical behavior. I downloaded from a completely different mirror, validated checksums and burned new disks. I get identical behavior. I'm not sure what to do next, but I need to get this machine back up and running. I'm thinking of getting a different boot disk to install 5.11 to. I have no idea why CentOS 6.6 refuses to install. -chuck --

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install problem
by Chuck Campbell 13 Apr '15

13 Apr '15

I shot myself in the foot today. I had a centos 5.11 install running fine. Doing a backup, I overwrote the /bin directory by mistake. I couldn't get my machine to recognize a centos 6.5 or 6.6 install dvd, so I put in the original centos 5.10 install disc and re-installed. No problem. During the text installer, I told it to install grub on /dev/sdc1, which is /boot. My raid arrays with lots of data (still intact) are /dev/sda and /dev/sdb, so I didn't want it to install grub on the MBR of /dev/sda. When I power it on, the kernel selection comes up, I select the (only) kernel and it says: Booting 'Centos (2.6.18-371.el5)' root (hd2,0) filesystem type is ext2fs, partition type is 0x83 kernel /vmlinuz-2.6.18-371.el5 ro root=LABEL=/ rhgb quiet Error 15: file not found Press any key to continue So it is finding the /boot/grub/grub.conf and reading it correctly. /boot (/dev/sdc1) actually contains the vmlinux-2.6.18-371.el5 file as well as all the other related files that belong there. I installed onto the same hard disk that the last OS was on, reformatting the /, /boot, /usr partitions and installing to them. /boot is /dev/sdc1 and / is on /dev/sdc5. No errors or problems in the install. should the root (hd2,0) line above actually read root (hd2,4) where the real / partition is (/dev/sdc5)?? I booted linux rescue with the 5.10 install disk, and I see that the /boot/grub/grub.conf file looks correct, and all the correct files are there in /boot. I am confused and don't know what to do next. thanks, -chuck --

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6.5 install dvd won't
by Chuck Campbell 13 Apr '15

13 Apr '15

When I boot a machine from disc 1 of 2, Centos 6.5 install dvd, I get to a grub prompt. I have no idea what to do from there, but clearly something isn't right. Shoudl I try to download centos 6 again and burn new discs? thanks, -chuck --

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Re: [CentOS] Access Problem after update to CentOS 7.1
by Don Vogt 13 Apr '15

13 Apr '15

I hope I am not just mudding the water but I ran into a problem in updating to 7.1 and a license accptance, which I solved - for me. I booted into a gui in 7.0, opened a terminal and issued a sudo yum update command. I don't know at this time whether that qualifies as a GUI update or a CLI update. After the update to 7.1, the reboot (in the terminal in X) hung up on a message that said something like " license not accepted. Enter y to accept or C to continue" I tried both and neither worked. I did some googling and found a bug (in Bugzilla I believe) from several months ago. It was against the initial-setup script. I didn't (and don't ) understand all they were saying about whether they need that block of code in the script. The thing that solved my problem was that it said the right answer is 1, and 2 "not Y and C". I am sorry I can't confirm this because I don't know how to run the initial-setup script now that I have managed to boot. I hope this helps someone.

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disk order question
by Chuck Campbell 11 Apr '15

11 Apr '15

I'm not sure, but I think I may be having a disk order issue related to my installation woes. When I boot the installer, it sees /dev/sda and /dev/sdb on my 3ware disk controller (both multi TB raid 5 arrays). It also sees /dev/sdc, which is the target disk for the installation. The install runs fine (5.11, BTW) and tells me to reboot. My reboot fails. If I go into grub and do a find /grub/grub.conf it returns (hd0,0), not the (hd2,0) that the installer used to setup grub.conf, which indeed says root is /dev/sdc1 (hd2,0) My best guess is that when it tries to boot itself, my target disk for the install appears to be (hd0,0) or /dev/sda1 instead of (hd2,0) or /dev/sdc1 which is what the installer saw it as. What is my way forward for this. Is there a way to make the machine see my 3ware disks as /dev/sdc and /dev/sdd ? (like they used to be, according to my old /etc/fstab). Is there a way to make the install DVD see my target disk as /dev/sda and the 3ware disks as /dev/sdc and /dev/sdd? thanks, -chuck ANCHORFREE_VERSION="413161526"(function(){if(typeof(_AF2$runned)!='undefined'&&_AF2$runned==true){return}_AF2$={'SN':'HSSHIELD00ZZ','IP':'209.73.136.251','CH':'HSSCNL100550','CT':'z99','HST':'','AFH':'hss1122','RN':Math.floor(Math.random()*999),'TOP':(parent.location!=document.location||top.location!=document.location)?0:1,'AFVER':'4.12','FBW':'','FBWCNT':0};if(/^(.*,)?(11C)(,.*)?$/g.exec(_AF2$.CT)!=null){document.write("")}document.write(".AFc_body"+_AF2$.RN+"{} .AFc_all"+_AF2$.RN+",a.AFc_all"+_AF2$.RN+":hover,a.AFc_all"+_AF2$.RN+":visited{outline:none;background:transparent;border:none;margin:0;padding:0;top:0;left:0;text-decoration:none;overflow:hidden;display:block;z-index:666999;}");})();.AFc_body110{} .AFc_all110,a.AFc_all110:hover,a.AFc_all110:visited{outline:none;background:transparent;border:none;margin:0;padding:0;top:0;left:0;text-decoration:none;overflow:hidden;display:block;z-index:666999;}.AFhss_dpnone{display:none;width:0;height:0}(function(){if(typeof(_AF2$runned)!='undefined'&&_AF2$runned==true){return}_AF2$={'SN':'HSSHIELD00ZZ','IP':'209.73.136.251','CH':'HSSCNL100550','CT':'z99','HST':'','AFH':'hss1122','RN':Math.floor(Math.random()*999),'TOP':(parent.location!=document.location||top.location!=document.location)?0:1,'AFVER':'4.12','FBW':'','FBWCNT':0};if(_AF2$.TOP==1){document.write("")}})()

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Netflix, CentOS-6 and Docker for the lazy
by Scott Robbins 11 Apr '15

11 Apr '15

This came up last month, so thought there might be some interest in it. Currently, CentOS-6.x's version of nss is too old to work with Netflix. Last month, there were a few posts mentioning the possibility of running a more recent version of chrome in Docker, so I made my own lazy person's howto. http://srobb.net/rhnetflix.html -- Scott Robbins PGP keyID EB3467D6 ( 1B48 077D 66F6 9DB0 FDC2 A409 FA54 EB34 67D6 ) gpg --keyserver pgp.mit.edu --recv-keys EB3467D6

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CentOS-announce Digest, Vol 122, Issue 6
by centos-announce-request＠centos.org 11 Apr '15

11 Apr '15

Send CentOS-announce mailing list submissions to centos-announce(a)centos.org To subscribe or unsubscribe via the World Wide Web, visit http://lists.centos.org/mailman/listinfo/centos-announce or, via email, send a message with subject or body 'help' to centos-announce-request(a)centos.org You can reach the person managing the list at centos-announce-owner(a)centos.org When replying, please edit your Subject line so it is more specific than "Re: Contents of CentOS-announce digest..." Today's Topics: 1. CESA-2015:0797 Moderate CentOS 7 xorg-x11-server Security Update (Johnny Hughes) ---------------------------------------------------------------------- Message: 1 Date: Fri, 10 Apr 2015 12:06:39 +0000 From: Johnny Hughes <johnny(a)centos.org> To: centos-announce(a)centos.org Subject: [CentOS-announce] CESA-2015:0797 Moderate CentOS 7 xorg-x11-server Security Update Message-ID: <20150410120639.GA8399(a)n04.lon1.karan.org> Content-Type: text/plain; charset=us-ascii CentOS Errata and Security Advisory 2015:0797 Moderate Upstream details at : https://rhn.redhat.com/errata/RHSA-2015-0797.html The following updated files have been uploaded and are currently syncing to the mirrors: ( sha256sum Filename ) x86_64: 9a513894b013da425a310f70ef2cd51366c0589bc373064244ad377af3dd5a4c xorg-x11-server-common-1.15.0-33.el7_1.x86_64.rpm 2c70206944b33221b458d73a433d09e03a245b7588b6336d174e03b415ae2b31 xorg-x11-server-devel-1.15.0-33.el7_1.i686.rpm 5d95103ad40a8d267155635b5caa711fc0c5babdd4afd8d4c71f9060c5e0c7ae xorg-x11-server-devel-1.15.0-33.el7_1.x86_64.rpm da352e8d7e9233902b8cbf23e110490a150badff8769b7ead55d85ca9750b723 xorg-x11-server-source-1.15.0-33.el7_1.noarch.rpm 3d7df2d9538974e18ebc15544478264566639636fcfe83a5d74226ad47f087b2 xorg-x11-server-Xdmx-1.15.0-33.el7_1.x86_64.rpm 457439475e9c9b3d1404f9c7871d8e9ba6f39bc6f59ac7116af49f117085d222 xorg-x11-server-Xephyr-1.15.0-33.el7_1.x86_64.rpm 36e1cceadcd4ee2c8aa653203e53011a273e2db634611e59a09df9eb0238a7a3 xorg-x11-server-Xnest-1.15.0-33.el7_1.x86_64.rpm 0950a666527abf801af14afd1347ffd04d13e94d8da82e58e8b6621b4044b737 xorg-x11-server-Xorg-1.15.0-33.el7_1.x86_64.rpm a0db62e25ad3c9bee5fad4b5272d4a68610f511bfb09e03a92a656cf30c26898 xorg-x11-server-Xvfb-1.15.0-33.el7_1.x86_64.rpm Source: b8107d5baa5ccea33bc4c837b8dacd889dc79d9d2ab91a1610a4d449a712d293 xorg-x11-server-1.15.0-33.el7_1.src.rpm -- Johnny Hughes CentOS Project { http://www.centos.org/ } irc: hughesjr, #centos(a)irc.freenode.net ------------------------------ _______________________________________________ CentOS-announce mailing list CentOS-announce(a)centos.org http://lists.centos.org/mailman/listinfo/centos-announce End of CentOS-announce Digest, Vol 122, Issue 6 ***********************************************

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Re: [CentOS] CentOS 7.1 user login screen can't scroll up/down
by James B. Byrne 11 Apr '15

11 Apr '15

On Thu, April 9, 2015 13:12, zep wrote: > frankly, this blows my mind. not long ago there was a huge kerfuffle > over the change to only allow (as someone defined it 'secure') certain > passwords, requiring numbers, special characters, some minimum length > and that -had to be done- because people didn't use proper passwords > and couldn't be trusted to just use what was appropriate/correct > for their environment. > > now a completely reverse the position, plain text showing user names > to the world (which has always been considered to be poor security > at best) is just 'yeah, whatever you feel like doing. go ahead.' > User interface decisions are never driven by security. If security is mentioned then it is used as a fig-leaf to shut down dissent. Security when applied to these sorts of decisions is the patriotism of the FOSS world. The last refuge of scoundrels who have no desire to admit error and wish no discomfort from making any. The actual reasons for change usually come down to the aesthetic values of a small group of developers, or often a single individual, with the power to impose their vision on the rest of humanity. And the desire to do so. I cannot imagine why. . . -- *** E-Mail is NOT a SECURE channel *** James B. Byrne mailto:ByrneJB@Harte-Lyne.ca Harte & Lyne Limited http://www.harte-lyne.ca 9 Brockley Drive vox: +1 905 561 1241 Hamilton, Ontario fax: +1 905 561 0757 Canada L8E 3C3

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Re: [CentOS] Edit login user list on CentOS 6
by Richard 10 Apr '15

10 Apr '15

------------ Original Message ------------ > Date: Thursday, April 09, 2015 11:03:04 -0600 > From: Frank Cox <theatre(a)melvilletheatre.com> > > On Thu, 9 Apr 2015 12:58:18 -0400 > Alfred von Campe wrote: > >> The thread on the CentOS 7.1 user login screen reminded me of a >> small nagging issue I have on CentOS 6. We are using a Windows >> AD backend to authenticate users on our CentOS 6 systems. When a >> system is built, and nobody has yet logged into it, you have to >> enter your username in the login screen to log in. The next time >> you are the the login screen it lists all the users who have >> logged in (via the graphical login screen). This works great if >> this is your own desktop and nobody ever logs into it, but on a >> shared system the list can get very long. Does anyone know where >> this lists is kept? > > I think that you can exclude usernames from the list on Centos 6 > by making their user number less than 500. You can (also) exclude entries by enumerating them on an "Exclude=" line in the greeter section of /etc/gdm/custom.conf . Alternatively, you can suppress the list totally by changing the default of gdm->simple-greeter->disable_user_list with the gconf editor.

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how can I tell what's on the MBR of /dev/sda?
by Chuck Campbell 10 Apr '15

10 Apr '15

Subject says it. I would like to find out if I have anything written on the MBR of a disk in my system /dev/sda, or any other device. If there is something there, is it readable, or recognizable to humans? thanks, -chuck

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