search for: grub2

On Debian family of OSes Grub2 tools are prefixed with 'grub-', not with 'grub2-'. We have to detect the correct name of the tool to use it. Signed-off-by: Tomáš Golembiovský <tgolembi@redhat.com> --- v2v/convert_linux.ml | 21 +++++++++++++++++++-- 1 file changed, 19 insertions(+), 2 deletions(-) diff -...

On Debian family of OSes Grub2 tools are prefixed with 'grub-', not with 'grub2-'. We have to detect the correct name of the tool to use it. Signed-off-by: Tomáš Golembiovský <tgolembi@redhat.com> --- v2v/linux_bootloaders.ml | 20 ++++++++++++++++++-- 1 file changed, 18 insertions(+), 2 deletions(-) dif...

There is some interest lately in making a self-contained grub2 boot image - call it pvgrub2, used for booting paravirtual domU in xen where a grub2 config is installed. First attempt------------------ I first tried using the grub2*.src.rpm from the C7 vault. I configured as shown belowhttps://blog.xenproject.org/2015/01/07/using-grub-2-as-a-bootloader-for-xen-...

On Debian family of OSes Grub2 tools are prefixed with 'grub-', not with 'grub2-'. We have to detect the correct name of the tool to use it. Signed-off-by: Tomáš Golembiovský <tgolembi@redhat.com> --- v2v/linux_bootloaders.ml | 17 +++++++++++++++-- 1 file changed, 15 insertions(+), 2 deletions(-) diff -...

Hello Erwan and others, I am running HDT from grub2 with memdisk. I have informed the success of booting hdt to the grub2 list. Some developers are very much interested to this issue and they are showing their interest to make a glue between com32 and grub2 so that hdt can be loaded without memdisk. It is really very exciting to have hdt as an in...

...; | | > | I suspect two things that can cause normal.mod to not be found: | > | a. The system is not in fact booting in UEFI mode and there's been | > | some mistake in the installation of grub. | > | b. The system is in UEFI mode, but either the installer, or | > | post-install, grub2-install was run which obliterates the grub2-efi | > | package installed grubx64.efi, i.e. it's not really proper to run | > | grub2-install on UEFI systems. | > | > I suspect this is the case. when attempting to run grub-install the system | > claims that the grub2-efi-modules p...

Hello All, I am trying to set multiple users with passwords for modifying grub2 menu entries at boot. I know I can set a "root" user grub2 password with grub2-setpassword. I have also been able to make a grub2 user password using the grub2-mkpasswd-pbkdf2 command and adding ??? set superusers="user1" to the /etc/grub.d/40_custom file. However, I have mul...

...d Security Advisory 2020:3217 Moderate Upstream details at : https://access.redhat.com/errata/RHSA-2020:3217 The following updated files have been uploaded and are currently syncing to the mirrors: ( sha256sum Filename ) x86_64: 10f5fc45885e9744b499a8d1830336902b9f4f4dd51ce0575fd5bb18e9047631 grub2-2.02-0.86.el7.centos.x86_64.rpm 9e82c47470c39b8c9c33717412a158f6bc1812fb771990b5dd8496ee1c94b22b grub2-common-2.02-0.86.el7.centos.noarch.rpm c5df733e242a01dac2a0caacf4436ed89ad75524499d26b675cacdae40d52fbd grub2-efi-ia32-2.02-0.86.el7.centos.x86_64.rpm c80037611cffa96c137a0fb8d69fc24c0bb09bdc375...

Here is a patch that makes it possible to chainload GRUB2 core.img form chain.c32. It reuses the grub= parameter (used for chainloading GRUB Legacy stage2): - both loaded at 0x8000 - start execution at offset 0x200 (0x8200 in memory) GRUB2 allows to specify another "GRUB home dir" than the standard /boot/grub GRUB2 doesn't allow to change...

...S Errata and Bugfix Advisory 2017:2950 Upstream details at : https://access.redhat.com/errata/RHBA-2017:2950 The following updated files have been uploaded and are currently syncing to the mirrors: ( sha256sum Filename ) x86_64: 828d60fc0272f1a012a0533b962b53721bd77f819c7ba217a65031740a375a12 grub2-2.02-0.65.el7.centos.2.x86_64.rpm ee389998b8ff255e61b6c4bfd6f6fce09591c6e3c15044175ff550b54fdd3ae0 grub2-common-2.02-0.65.el7.centos.2.noarch.rpm 3bb8b2b0298e4700ef0ac3980736c6a3845fd34a29bde15bf7d76e44b55307c8 grub2-efi-ia32-2.02-0.65.el7.centos.2.x86_64.rpm 34e35799c77a9c8a3916f08da92016dd19b4d...

I saw this today: http://linux.slashdot.org/story/15/12/16/040223/0-day-grub2-authentication-bypass-hits-linux I installed a grub2 update in 7.2 yesterday. Did the update fix this? -wes

...in a large system. > On Fri, Dec 27, 2019, 6:57 AM Peter <peter at pajamian.dhs.org> wrote: > > > On 27/12/19 7:36 pm, Nicolas Kovacs wrote: > > > Le 27/12/2019 ? 04:11, Mauricio Tavares a ?crit : > > >> Why is it not there? FYI, I did try 'yum reinstall grub2' and no > > >> /boot/grub2/grub.cfg for me. > > > > > > You're probably on an EFI system, and your grub.cfg is in a different > > > location. Can't remember it off the top of my head, but do > > > > /etc/grub2-efi.cfg -> ../boot/efi/...

...Errata and Bugfix Advisory 2019:0171 Upstream details at : https://access.redhat.com/errata/RHBA-2019:0171 The following updated files have been uploaded and are currently syncing to the mirrors: ( sha256sum Filename ) x86_64: 795a442f61323b1b5e22c4b4e2d8f891983606d90b0c4d2a7d0100b2ef8f1e0c grub2-2.02-0.76.el7.centos.1.x86_64.rpm 3af0ff7a7cf24ca7b863d9c0690b16427de20f0c7b533e8f39f252ecc032139f grub2-common-2.02-0.76.el7.centos.1.noarch.rpm 793e05a796c98a52de37c161549feff3cc009ba719b9f0071ba6062e6a073e57 grub2-efi-ia32-2.02-0.76.el7.centos.1.x86_64.rpm 0f886256fbe1bdd8e556d2959da1656f68606...

...to help we would need you totry the following: 1. boot using a working USB/cdrom/netboot path and installer2. choose the rescue mode3. have the rescue mount the disks as local and chroot into thesystem. << if possible have the system also bring up networking >> Thenyum list kernel shim grub2 mokutil John, I have a CentOS 8.2.2004 system running on an EPYC-equipped SuperMicro motherboard. I assume it uses EFI boot. I have it set to auto-update with cron.daily, so it almost certainly has the buggy package(s) installed. I'm loath to try rebooting it just to see. When I run "y...

Let me see if I can, um, reboot this thread.... I made a RAID 1 of two raw disks, /dev/sda and /dev/sdb, *not* /dev/sdax /dev/sdbx. Then I installed CentOS 7 on the RAID, with /boot, /, and swap being partitions on the RAID. My problem is that grub2-install absolutely and resolutely refuses to install on /dev/sda or /dev/sdb. I've currently got it up in a half-assed rescue mode, and have mount -o bind /dev, /proc/ and /sys under /mnt/sysimage, and chrooted there. That's where I'm trying to do my grub2-install. So: 1. *Is* there...

> On Dec 17, 2015, at 11:29 AM, Mike - st257 <silvertip257 at gmail.com> wrote: > > On Thu, Dec 17, 2015 at 1:19 PM, Wes James <comptekki at me.com> wrote: > >> I saw this today: >> >> >> http://linux.slashdot.org/story/15/12/16/040223/0-day-grub2-authentication-bypass-hits-linux >> >> I installed a grub2 update in 7.2 yesterday. Did the update fix this? >> > > From the changelog, I'd say yes. > > ~]# yum changelog 1 grub2 > <...snipped..> > > Listing 1 changelog > > ==============...

So I installed centos8. And I was looking for the grub config file: [root at testbox ~]# ls -l /etc/grub2.cfg lrwxrwxrwx. 1 root root 22 Oct 2 13:01 /etc/grub2.cfg -> ../boot/grub2/grub.cfg [root at testbox ~]# But [root at testbox ~]# ls /boot/grub2/ grubenv [root at testbox ~]# Why is it not there? FYI, I did try 'yum reinstall grub2' and no /boot/grub2/grub.cfg for me.

...2 APPEND guid:xxxxx 5 So, I'm chainloading the boot sector of an hybrid iso image dumped to a partition. Everything works as expected with all distros which were built to boot with isolinux. It works because of the isohdppx.bin MBR (or the --partok switch of isohybrid). If the distro uses grub2 it fails because the "hybrid" grub2 images lacks the support of booting from a partition table (right?), i.e. the file boot_hybrid.img from grub2 *seems* not supporting booting from a partition table. It hangs on "Booting". There is a way to patch this behavior allowing chai...

On 27/12/19 7:36 pm, Nicolas Kovacs wrote: > Le 27/12/2019 ? 04:11, Mauricio Tavares a ?crit?: >> Why is it not there?? FYI, I did try 'yum reinstall grub2' and no >> /boot/grub2/grub.cfg for me. > > You're probably on an EFI system, and your grub.cfg is in a different > location. Can't remember it off the top of my head, but do /etc/grub2-efi.cfg -> ../boot/efi/EFI/centos/grub.cfg Peter

On Thursday, 11 August 2016 00:35:55 CEST Tomáš Golembiovský wrote: > On Debian family of OSes Grub2 tools are prefixed with 'grub-', not with > 'grub2-'. We have to detect the correct name of the tool to use it. > > Signed-off-by: Tomáš Golembiovský <tgolembi@redhat.com> > --- > v2v/convert_linux.ml | 21 +++++++++++++++++++-- > 1 file changed, 19 inserti...