search for: grub_cmdline_linux

...2.1.tar.gz cd xen-4.2.1 ./configure make install-xen make install-tools PYTHON_PREFIX_ARG= make install-kernels make install-stubdom make install-docs sed -i ''s/GRUB_DEFAULT=.*\+/GRUB_DEFAULT="Ubuntu GNU\/Linux, with Xen hypervisor"/'' /etc/default/grub sed -i ''s/GRUB_CMDLINE_LINUX=.*\+/GRUB_CMDLINE_LINUX="apparmor=0"/'' /etc/default/grub sed -i ''/GRUB_CMDLINE_LINUX="apparmor=0"/ a\GRUB_CMDLINE_XEN="dom0_mem=384M,max:384M dom0_max_vcpus=1 no-bootscrub"'' /etc/default/grub update-grub echo "none /proc/xen xenfs defaul...

...squares until the login prompt, so I cannot see what is happening as the machine boots. Also there is nothing on the screen when I reboot. My /etc/default/grub is GRUB_DISTRIBUTOR="$(sed 's, release .*$,,g' /etc/system-release)" GRUB_DEFAULT=saved GRUB_DISABLE_SUBMENU=true GRUB_CMDLINE_LINUX="crashkernel=auto rhgb intremap=no_x2apic_optout" GRUB_CMDLINE_XEN_DEFAULT="dom0_mem=13312M,max:14336M dom0_max_vcpus=6 dom0_vcpus_pin" GRUB_GFXMODE=1024x768 GRUB_GFXPAYLOAD_LINUX=keep GRUB_CMDLINE_LINUX_XEN_REPLACE_DEFAULT="console=hvc0 earlyprintk=xen nomodeset"...

...gt; see what is happening as the machine boots. Also there is nothing on the > screen when I reboot. > > My /etc/default/grub is > > GRUB_DISTRIBUTOR="$(sed 's, release .*$,,g' /etc/system-release)" > GRUB_DEFAULT=saved > GRUB_DISABLE_SUBMENU=true > GRUB_CMDLINE_LINUX="crashkernel=auto rhgb intremap=no_x2apic_optout" > GRUB_CMDLINE_XEN_DEFAULT="dom0_mem=13312M,max:14336M dom0_max_vcpus=6 > dom0_vcpus_pin" > GRUB_GFXMODE=1024x768 > GRUB_GFXPAYLOAD_LINUX=keep > GRUB_CMDLINE_LINUX_XEN_REPLACE_DEFAULT="console=hvc0 earlyp...

...not see > what is happening as the machine boots. Also there is nothing on the screen when I reboot. > > My /etc/default/grub is > > GRUB_DISTRIBUTOR="$(sed 's, release .*$,,g' /etc/system-release)" > GRUB_DEFAULT=saved > GRUB_DISABLE_SUBMENU=true > GRUB_CMDLINE_LINUX="crashkernel=auto rhgb intremap=no_x2apic_optout" > GRUB_CMDLINE_XEN_DEFAULT="dom0_mem=13312M,max:14336M dom0_max_vcpus=6 dom0_vcpus_pin" > GRUB_GFXMODE=1024x768 > GRUB_GFXPAYLOAD_LINUX=keep > GRUB_CMDLINE_LINUX_XEN_REPLACE_DEFAULT="console=hvc0 earlyprintk=...

...ith C7. Presently SoL output works, so I see BIOS/POST messages and the GRUB boot list. My changes to enable serial redirection for the kernel do not appear to work. I've made the following changes to GRUB2's /etc/grub/default config file: -- removed rhgb -- added the console= settings to GRUB_CMDLINE_LINUX -- added the last two lines related to serial as detailed here [0]. * Is there an option to enable hardware flow control? I recall having to turn on flow control (agetty -h) to make it behave. No mention of flow control at [1] or [2]. Nor does RHEL7 doc [3] mention it. I've already tweaked t...

...grub as follows: - changed the default boot order - added the following entries GRUB_DISABLE_OS_PROBER=true GRUB_SERIAL_COMMAND="serial --unit=0 --speed=9600 --word=8 --parity=no --stop=1" GRUB_TERMINAL="console serial" GRUB_CMDLINE_XEN="com1=9600,8n1 console=com1,vga" GRUB_CMDLINE_LINUX="console=tty0 console=hvc0"for the new menu entries and xend-config.sxp 4) made the following changes to /etc/default/xendomains: XENDOMAINS_SAVE="" XENDOMAINS_RESTORE=false 5) rebooted Then, as mentioned, the new boot sequence hangs indefinitely at "stopping system V runl...

Hi All :) I have three servers, all with centos 7 installed 3 days ago. I need on them "old" naming scheme (ethX) for network interfaces, because of that: # grep GRUB_CMDLINE_LINUX /etc/sysconfig/grub GRUB_CMDLINE_LINUX="rd.lvm.lv=centos_node-XY/swap rd.lvm.lv=centos_node-XY/root rhgb quiet ipv6.disable=1 net.ifnames=0" net.ifnames=0 was added and afterwards I ran: grub2-mkconfig -o /boot/grub2/grub.cfg Then I created /etc/udev/rules.d/70-persistent-net.rules wit...

...loop paths; + + g#aug_save () +end + +(* Grub2 representation. *) +class bootloader_grub2 (g : G.guestfs) grub_config = + let grub2_update_console ~remove = + let rex = Str.regexp "\\(.*\\)\\bconsole=[xh]vc0\\b\\(.*\\)" in + + let paths = [ + "/files/etc/sysconfig/grub/GRUB_CMDLINE_LINUX"; + "/files/etc/default/grub/GRUB_CMDLINE_LINUX"; + "/files/etc/default/grub/GRUB_CMDLINE_LINUX_DEFAULT" + ] in + let paths = List.map g#aug_match paths in + let paths = List.map Array.to_list paths in + let paths = List.flatten paths in + match pat...

...paths in + loop paths; + + g#aug_save () +end + +(* Grub2 representation. *) +class bootloader_grub2 g grub_config = + let grub2_update_console ~remove = + let rex = Str.regexp "\\(.*\\)\\bconsole=[xh]vc0\\b\\(.*\\)" in + + let paths = [ + "/files/etc/sysconfig/grub/GRUB_CMDLINE_LINUX"; + "/files/etc/default/grub/GRUB_CMDLINE_LINUX"; + "/files/etc/default/grub/GRUB_CMDLINE_LINUX_DEFAULT" + ] in + let paths = List.map g#aug_match paths in + let paths = List.map Array.to_list paths in + let paths = List.flatten paths in + match pat...

...t; + > +(* Grub2 representation. *) > +class bootloader_grub2 (g : G.guestfs) grub_config = > + let grub2_update_console ~remove = > + let rex = Str.regexp "\\(.*\\)\\bconsole=[xh]vc0\\b\\(.*\\)" in > + > + let paths = [ > + "/files/etc/sysconfig/grub/GRUB_CMDLINE_LINUX"; > + "/files/etc/default/grub/GRUB_CMDLINE_LINUX"; > + "/files/etc/default/grub/GRUB_CMDLINE_LINUX_DEFAULT" > + ] in > + let paths = List.map g#aug_match paths in > + let paths = List.map Array.to_list paths in > + let paths = List.f...

...ll into the rdosshell, I guess. I finally got one the three up by going back to the 228.14 kernel. Now, after googling and finding the CentOS bugzilla, 0009860, that referenced the upstream bugzilla, I applied the workaround discussed in it, Adding initcall_blacklist=clocksource_done_booting to GRUB_CMDLINE_LINUX in /etc/default/grub and then grub2-mkconfig -o /etc/grub2.cfg" On one. On the other, that's got a *large* RAID appliance (a JetStor w/ 42 4TB drives...), it seemed to work... then gave me a dozen or so ERROR: unsupported sector size 4096 on /dev/sdd. ERROR: unsupported sector size 409...

...o_list paths in - loop paths; - - g#aug_save () - - | `Grub2 -> - grub2_update_console ~remove:true - - and grub2_update_console ~remove = - let rex = Str.regexp "\\(.*\\)\\bconsole=[xh]vc0\\b\\(.*\\)" in - - let paths = [ - "/files/etc/sysconfig/grub/GRUB_CMDLINE_LINUX"; - "/files/etc/default/grub/GRUB_CMDLINE_LINUX"; - "/files/etc/default/grub/GRUB_CMDLINE_LINUX_DEFAULT" - ] in - let paths = List.map g#aug_match paths in - let paths = List.map Array.to_list paths in - let paths = List.flatten paths in - match pat...

...ion. --- v2v/linux_bootloaders.ml | 1 + 1 file changed, 1 insertion(+) diff --git a/v2v/linux_bootloaders.ml b/v2v/linux_bootloaders.ml index 6582970..061d945 100644 --- a/v2v/linux_bootloaders.ml +++ b/v2v/linux_bootloaders.ml @@ -266,6 +266,7 @@ object (self) "/files/etc/default/grub/GRUB_CMDLINE_LINUX"; "/files/etc/default/grub/GRUB_CMDLINE_LINUX_DEFAULT"; "/files/boot/grub2/device.map/*[label() != \"#comment\"]"; + "/files/boot/grub/device.map/*[label() != \"#comment\"]"; ] method list_kernels = -- 2.9.3

...I cannot see > what is happening as the machine boots. Also there is nothing on the screen when I reboot. > > My /etc/default/grub is > > GRUB_DISTRIBUTOR="$(sed 's, release .*$,,g' /etc/system-release)" > GRUB_DEFAULT=saved > GRUB_DISABLE_SUBMENU=true > GRUB_CMDLINE_LINUX="crashkernel=auto rhgb intremap=no_x2apic_optout" > GRUB_CMDLINE_XEN_DEFAULT="dom0_mem=13312M,max:14336M dom0_max_vcpus=6 dom0_vcpus_pin" > GRUB_GFXMODE=1024x768 > GRUB_GFXPAYLOAD_LINUX=keep > GRUB_CMDLINE_LINUX_XEN_REPLACE_DEFAULT="console=hvc0 earlyprintk=xen...

...ing as the machine boots. Also there is nothing on the screen when I reboot. > > > > My /etc/default/grub is > > > > GRUB_DISTRIBUTOR="$(sed 's, release .*$,,g' /etc/system-release)" > > GRUB_DEFAULT=saved > > GRUB_DISABLE_SUBMENU=true > > GRUB_CMDLINE_LINUX="crashkernel=auto rhgb intremap=no_x2apic_optout" > > GRUB_CMDLINE_XEN_DEFAULT="dom0_mem=13312M,max:14336M dom0_max_vcpus=6 dom0_vcpus_pin" > > GRUB_GFXMODE=1024x768 > > GRUB_GFXPAYLOAD_LINUX=keep > > GRUB_CMDLINE_LINUX_XEN_REPLACE_DEFAULT="console=h...

...cannot > see what is happening as the machine boots. Also there is nothing on the > screen when I reboot. > > My /etc/default/grub is > > GRUB_DISTRIBUTOR="$(sed 's, release .*$,,g' /etc/system-release)" > GRUB_DEFAULT=saved > GRUB_DISABLE_SUBMENU=true > GRUB_CMDLINE_LINUX="crashkernel=auto rhgb intremap=no_x2apic_optout" > GRUB_CMDLINE_XEN_DEFAULT="dom0_mem=13312M,max:14336M dom0_max_vcpus=6 > dom0_vcpus_pin" > GRUB_GFXMODE=1024x768 > GRUB_GFXPAYLOAD_LINUX=keep > GRUB_CMDLINE_LINUX_XEN_REPLACE_DEFAULT="console=hvc0 earlyprintk...

...g as the machine boots. Also there is nothing on the >> screen when I reboot. >> >> My /etc/default/grub is >> >> GRUB_DISTRIBUTOR="$(sed 's, release .*$,,g' /etc/system-release)" >> GRUB_DEFAULT=saved >> GRUB_DISABLE_SUBMENU=true >> GRUB_CMDLINE_LINUX="crashkernel=auto rhgb intremap=no_x2apic_optout" _________________________________________^ If you no not NEED a gfx boot at bare metal, remove the "rhgb" string, this switches grub from a "full graphic" mode to a "hires textmode", AFAICS, this also influenc...

...ing. >> >> What am I doing wrong? > > Tested, and yes, this happens after a reboot, grub2 isn't giving the > initrd a root disk to switch to. > > I had to edit the grub.cfg and add a single line, > set default_kernelopts="..." > > (using what was GRUB_CMDLINE_LINUX= was set in /etc/default/grub) > > I'm not exactly sure which package that was installed that caused > this. > Create a snapshot of clean VM and divide that list in 10 pieces and install them one at the time and reboot afterwards. If VM boots, create another snapshot. When it fa...

Hi, Note: Please do this on a test VM. My issue: I took the output of the following command $ yum list installed | xargs -n3 | column -t | tail -n +3 |cut -d' ' -f1 > packages.list from a CentOS 7.7 Installation. and did $ dnf install $(cat packages.list) --setopt=strict=0 on Freshly installed Minimal CentOS 8 VM. When I reboot I get Failed to switch root: Specified switch

Hi, On my minimal installation of CentOS 7, here's what I have in /etc/default/grub: GRUB_TIMEOUT=0 GRUB_DISTRIBUTOR="$(sed 's, release .*$,,g' /etc/system-release)" GRUB_DEFAULT=saved GRUB_DISABLE_SUBMENU=true GRUB_TERMINAL_OUTPUT="console" GRUB_CMDLINE_LINUX="rd.lvm.lv=centos_amandine/root \ rd.lvm.lv=centos_amandine/swap \ video=1024x768 \ quiet" GRUB_DISABLE_RECOVERY="true" According to the official documentation, pressing any alphanumerical key just after the BIOS scree...