Re: Examples of customized grub2 configuration files?
Hi, you may find it easier to do the work using the SYSLINUX/EXTLINUX boot loader. In my experience, it takes less time to learn how to use syslinux from zero, compared to doing anything at all non-standard in grub/grub2. And with grub2 even having custom order of boot entries is now non-standard. This is addition to all the cases where grub/grub2 just plain does not work (gives you a blank screen, or tells you that existing files do not exist, or goes to the wrong disk, or in one case corrupted the CMOS settings, and etc of course). I am a happy SYSLINUX user and I would recommend it to everybody - for network booting, for booting from disk, for booting from USB, for booting from anything. My latest success was EFI boot from a pcie ssd, where grub2 at best gave me a "grub>" prompt and nothing more. K.O. On Mon, Apr 03, 2017 at 02:26:36PM -0700, Keith Lofstrom wrote: > I'm looking for examples (with explanatory comments) of > customized configuration files to use in the /etc/grub.d > directory, somewhere out there on the intertubes. > > Specifically, what I hope to add is a "11_single" file > to /etc/grub.d that adds a boot menu option for booting > the most recent kernel in single user mode. > > Yes, I know I can select a menu entry with "e", and > then edit "SINGLE" onto the end of the kernel line. > However, I will typically only do this when something > is wrong, I am in a hurry to fix it, and prone to > mistakes. I prefer to prepare for emergencies in > advance, when I am calm and have time to think things > through, so I will have more brain cells to focus on > on the specifics of an unplanned emergency. > > I do best by copying and understanding examples. The > example "41_custom" file has almost no useful comments; > they are there to remind the RHEL maintainer, not teach > a newbie to make safe tweaks. Ditto the documentation. > > Completely implemented and explained, the new grub2 > setup could be a lot safer and easier to use than the > old grub setup. But old grub was simple vi tweaks of > a single grub.conf file, and the new setup requires > far more knowledge to operate properly. I prefer to > learn from multiple tested examples. I'd rather spend > an hour than a week learning to do this. > > Any suggestions? I did find an almost-germane > explanation of a particular grub2 customization at > https://help.ubuntu.com/community/Grub2/CustomMenus > but my brain is too small to translate that into the > solution that I am hoping for. > > Keith > > -- > Keith Lofstrom kei...@keithl.com -- Konstantin Olchanski Data Acquisition Systems: The Bytes Must Flow! Email: olchansk-at-triumf-dot-ca Snail mail: 4004 Wesbrook Mall, TRIUMF, Vancouver, B.C., V6T 2A3, Canada
Examples of customized grub2 configuration files?
I'm looking for examples (with explanatory comments) of customized configuration files to use in the /etc/grub.d directory, somewhere out there on the intertubes. Specifically, what I hope to add is a "11_single" file to /etc/grub.d that adds a boot menu option for booting the most recent kernel in single user mode. Yes, I know I can select a menu entry with "e", and then edit "SINGLE" onto the end of the kernel line. However, I will typically only do this when something is wrong, I am in a hurry to fix it, and prone to mistakes. I prefer to prepare for emergencies in advance, when I am calm and have time to think things through, so I will have more brain cells to focus on on the specifics of an unplanned emergency. I do best by copying and understanding examples. The example "41_custom" file has almost no useful comments; they are there to remind the RHEL maintainer, not teach a newbie to make safe tweaks. Ditto the documentation. Completely implemented and explained, the new grub2 setup could be a lot safer and easier to use than the old grub setup. But old grub was simple vi tweaks of a single grub.conf file, and the new setup requires far more knowledge to operate properly. I prefer to learn from multiple tested examples. I'd rather spend an hour than a week learning to do this. Any suggestions? I did find an almost-germane explanation of a particular grub2 customization at https://help.ubuntu.com/community/Grub2/CustomMenus but my brain is too small to translate that into the solution that I am hoping for. Keith -- Keith Lofstrom kei...@keithl.com
Re: [SCIENTIFIC-LINUX-USERS] fermilab-conf_doe-banner-console is not fully uninstalled by yum remove
Hi Dan, Thanks for the report. I own this package and I'll see about getting it fixed. Pat On 04/02/2017 11:22 AM, Dan wrote: Dear All, I installed SL7.3 a few weeks ago - thanks for a great distro. However, I've discovered the following behaviour which I think constitutes a bug: Yesterday, I accidentally (as part of a more general yum install invocation with some wildcards in it) ran: yum install fermilab-conf_doe-banner-console This wrote a passage of text to /etc/motd, causing a vaguely threatening message, purporting to constitute a legally-binding contract, to appear on screen at boot time. However, subsequently running yum remove fermilab-conf_doe-banner-console does not remove the passage of text from /etc/motd, and does not stop the message from appearing at boot time. Is there some sort of upstream bugzilla to which someone can pass this on, please?
Re: [SCIENTIFIC-LINUX-USERS] is the sha256sum of SL-7.3-x86_64-netinst.iso correct?
Good catch. Somehow the signature got reverted to the RC image. The correct signature is 68992289a1163250ba064c23baa8c4b23d11e5dc0562de41971bdf9c2ad42415 I'll get a new set of SHA files posted. Sorry for the error. On 04/01/2017 03:06 AM, Fred Liu wrote: Hi, Is the following hash the correct one? 13650ef94c16024285fd9dadebba4d62a33c0de5ac611314bf8e3d6afb956a3a SL-7.3-x86_64-netinst.iso Thanks. Fred
