sudo update-grub:Sourcing file `/etc/default/grub’ Generating grub configuration file … error: invalid volume

I have re-Installed the Ubuntu after accidentally deleting the Ubuntu partition from windows without proper procedure & configuration of Ubuntu, so in result I couldn’t able to run Ubuntu and cant use the freed space. I have installed the Ubuntu in same partition which I was deleted improperly to overcome this problem, now I can use the Ubuntu but there are some issue.

I am using the dell Inspiron model so i avoid the issue of the kernel checking the graphics driver which causing the boot problem I had to change the some of grub file (Reference Video: https://www.youtube.com/watch?v=Tg4fWsFPzSE). After following the video in last I had to run the sudo update-grub which causing this error. Error after running command

And also there is number other files folder are created because of improper removal of my previous and re installation of Ubuntu again As you can see here

Or should I removed the all Ubuntu now with all configuration and Ubuntu now, will this work?

Any help would be appreciated.

Note: Previous and re-installed version are both Ubuntu is 18.04.3 LTS

grub rescue with lvm no filesystem

I tried to rescue the Grub, but could not get it to fix if i use ls in grubrescue and selecting any of these (also (hd0,1)) there is always an error which says no filesystem

The System is a Ubuntu 18.04 x64 running on a virtualbox, .vmdk splitted files Also tried to mount with a Ubuntu Live cd and mount the partition, but it is empty

I watched and tried diffrent things from other forums but nothing worked I used also boot repair disk and the Output is the following and I don’t know what to do know

Boot Info Script 8f991e4 + Boot-Repair extra info      [Boot-Info 25oct2017]   ============================= Boot Info Summary: ===============================   => Grub2 (v2.00) is installed in the MBR of /dev/sda and looks at sector 1 of      the same hard drive for core.img. core.img is at this location and looks      for      (lvmid/j9Tehd-JzsK-ZZt1-eSYm-1vKe-waiB-arJ1FS/wgc17k-GyfG-B4TO-K3ds-W6h5-jw     BK-I8OS9e)/boot/grub. It also embeds following components:      modules     ---------------------------------------------------------------------------     fshelp ext2 part_msdos diskfilter lvm biosdisk     ---------------------------------------------------------------------------  sda1: __________________________________________________________________________      File system:       LVM2_member     Boot sector type:  -     Boot sector info:   ubuntu-vg-root: ________________________________________________________________      File system:            Boot sector type:  -     Boot sector info:      Mounting failed:   mount: /mnt/BootInfo/LVM/ubuntu-vg-root: unknown filesystem type ''.  ubuntu-vg-swap_1: ______________________________________________________________      File system:       swap     Boot sector type:  -     Boot sector info:   ============================ Drive/Partition Info: =============================  Drive: sda _____________________________________________________________________ Disk /dev/sda: 100 GiB, 107374182400 bytes, 209715200 sectors Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disklabel type: dos  Partition  Boot  Start Sector    End Sector  # of Sectors  Id System  /dev/sda1    *          2,048   209,713,151   209,711,104  8e Linux LVM   "blkid" output: ________________________________________________________________  Device           UUID                                   TYPE       LABEL  /dev/loop0                                              squashfs    /dev/mapper/ubuntu--vg-swap_1 e4398da6-a3b6-4e52-a905-b6fe294d5866   swap        /dev/sda1        RV4GvP-9GWe-wjhj-hOk3-ZiC9-26bX-UHNuAx LVM2_member  /dev/sr0         2017-10-29-00-56-18-00                 iso9660    Boot-Repair-Disk 64bit /dev/zram0       624716b1-0db3-4900-a489-51596c62b22b   swap        /dev/zram1       7388fb65-d401-43f5-9bd5-81d1f15c0a8d   swap        /dev/zram2       94f8eaf7-95f1-4c57-b0f2-8c2daab8d1d8   swap        /dev/zram3       75623944-b0e8-4004-b6db-34208914f94c   swap         ========================= "ls -l /dev/disk/by-id" output: ======================  total 0 lrwxrwxrwx 1 root root  9 Sep 18 07:42 ata-VBOX_CD-ROM_VB2-01700376 -> ../../sr0 lrwxrwxrwx 1 root root  9 Sep 18 07:47 ata-VBOX_HARDDISK_VB8749a016-94bf0457 -> ../../sda lrwxrwxrwx 1 root root 10 Sep 18 07:47 ata-VBOX_HARDDISK_VB8749a016-94bf0457-part1 -> ../../sda1 lrwxrwxrwx 1 root root 10 Sep 18 07:47 dm-name-ubuntu--vg-root -> ../../dm-0 lrwxrwxrwx 1 root root 10 Sep 18 07:47 dm-name-ubuntu--vg-swap_1 -> ../../dm-1 lrwxrwxrwx 1 root root 10 Sep 18 07:47 dm-uuid-LVM-j9TehdJzsKZZt1eSYm1vKewaiBarJ1FSk7c14qZHNle5rvZSA0KAZuxvNump63aA -> ../../dm-1 lrwxrwxrwx 1 root root 10 Sep 18 07:47 dm-uuid-LVM-j9TehdJzsKZZt1eSYm1vKewaiBarJ1FSwgc17kGyfGB4TOK3dsW6h5jwBKI8OS9e -> ../../dm-0 lrwxrwxrwx 1 root root 10 Sep 18 07:47 lvm-pv-uuid-RV4GvP-9GWe-wjhj-hOk3-ZiC9-26bX-UHNuAx -> ../../sda1  ========================= "ls -R /dev/mapper/" output: =========================  /dev/mapper: control ubuntu--vg-root ubuntu--vg-swap_1  ================================ Mount points: =================================  Device           Mount_Point              Type       Options  /dev/loop0       /rofs                    squashfs   (ro,noatime) /dev/sr0         /cdrom                   iso9660    (ro,noatime,nojoliet,check=s,map=n,blocksize=2048)   =============================== StdErr Messages: ===============================  File descriptor 8 (/proc/9440/mountinfo) leaked on lvs invocation. Parent PID 14671: bash File descriptor 63 (pipe:[44068]) leaked on lvs invocation. Parent PID 14671: bash File descriptor 8 (/proc/9440/mountinfo) leaked on lvchange invocation. Parent PID 15288: bash File descriptor 63 (pipe:[44068]) leaked on lvchange invocation. Parent PID 15288: bash File descriptor 8 (/proc/9440/mountinfo) leaked on lvchange invocation. Parent PID 15288: bash File descriptor 63 (pipe:[44068]) leaked on lvchange invocation. Parent PID 15288: bash  ADDITIONAL INFORMATION : =================== log of boot-repair 20190918_0747 =================== boot-repair version : 4ppa62 boot-sav version : 4ppa62 boot-sav-extra version : 4ppa62 glade2script version : 3.2.3~ppa4 BLKID BEFORE LVM ACTIVATION: /dev/sr0: UUID="2017-10-29-00-56-18-00" LABEL="Boot-Repair-Disk 64bit" TYPE="iso9660" PTUUID="6b8b4567" PTTYPE="dos" /dev/loop0: TYPE="squashfs" /dev/sda1: UUID="RV4GvP-9GWe-wjhj-hOk3-ZiC9-26bX-UHNuAx" TYPE="LVM2_member" PARTUUID="ea01a2f3-01" /dev/zram0: UUID="624716b1-0db3-4900-a489-51596c62b22b" TYPE="swap" /dev/zram1: UUID="7388fb65-d401-43f5-9bd5-81d1f15c0a8d" TYPE="swap" /dev/zram2: UUID="94f8eaf7-95f1-4c57-b0f2-8c2daab8d1d8" TYPE="swap" /dev/zram3: UUID="75623944-b0e8-4004-b6db-34208914f94c" TYPE="swap" /dev/mapper/ubuntu--vg-swap_1: UUID="e4398da6-a3b6-4e52-a905-b6fe294d5866" TYPE="swap" MODPROBE VGSCAN File descriptor 8 (/proc/9440/mountinfo) leaked on vgscan invocation. Parent PID 9449: /bin/bash Reading volume groups from cache. Found volume group "ubuntu-vg" using metadata type lvm2 VGCHANGE File descriptor 8 (/proc/9440/mountinfo) leaked on vgchange invocation. Parent PID 9449: /bin/bash 2 logical volume(s) in volume group "ubuntu-vg" now active File descriptor 8 (/proc/9440/mountinfo) leaked on lvscan invocation. Parent PID 9449: /bin/bash LVSCAN: ACTIVE            '/dev/ubuntu-vg/root' [99.04 GiB] inherit ACTIVE            '/dev/ubuntu-vg/swap_1' [980.00 MiB] inherit File descriptor 8 (/proc/9440/mountinfo) leaked on lvs invocation. Parent PID 11228: /bin/sh Error: /dev/mapper/ubuntu--vg-root: unrecognised disk label Warning: Unable to open /dev/sr0 read-write (Read-only file system).  /dev/sr0 has been opened read-only. Error: Invalid partition table - recursive partition on /dev/sr0. boot-repair is executed in live-session (Boot-Repair-Disk 64bit 1oct2017, zesty, Ubuntu, x86_64) CPU op-mode(s):      32-bit, 64-bit file=/cdrom/preseed/lubuntu.seed boot=casper initrd=/casper/initrd.lz quiet splash -- debian-installer/language=de keyboard-configuration/layoutcode?=de ls: cannot access '/home/usr/.config': No such file or directory  =================== os-prober:   =================== blkid: /dev/sr0: UUID="2017-10-29-00-56-18-00" LABEL="Boot-Repair-Disk 64bit" TYPE="iso9660" PTUUID="6b8b4567" PTTYPE="dos" /dev/loop0: TYPE="squashfs" /dev/sda1: UUID="RV4GvP-9GWe-wjhj-hOk3-ZiC9-26bX-UHNuAx" TYPE="LVM2_member" PARTUUID="ea01a2f3-01" /dev/zram0: UUID="624716b1-0db3-4900-a489-51596c62b22b" TYPE="swap" /dev/zram1: UUID="7388fb65-d401-43f5-9bd5-81d1f15c0a8d" TYPE="swap" /dev/zram2: UUID="94f8eaf7-95f1-4c57-b0f2-8c2daab8d1d8" TYPE="swap" /dev/zram3: UUID="75623944-b0e8-4004-b6db-34208914f94c" TYPE="swap" /dev/mapper/ubuntu--vg-swap_1: UUID="e4398da6-a3b6-4e52-a905-b6fe294d5866" TYPE="swap"   =================== UEFI/Legacy mode: This live-session is not in EFI-mode. SecureBoot maybe enabled.   =================== PARTITIONS & DISKS:    =================== parted -lm:  BYT; /dev/sda:107GB:scsi:512:512:msdos:ATA VBOX HARDDISK:; 1:1049kB:107GB:107GB:::boot, lvm;  BYT; /dev/mapper/ubuntu--vg-root:106GB:dm:512:512:unknown:Linux device-mapper (linear):;  BYT; /dev/mapper/ubuntu--vg-swap_1:1028MB:dm:512:512:loop:Linux device-mapper (linear):; 1:0.00B:1028MB:1028MB:linux-swap(v1)::;  BYT; /dev/zram3:1574MB:unknown:4096:4096:loop:Unknown:; 1:0.00B:1574MB:1574MB:linux-swap(v1)::;  BYT; /dev/zram1:1574MB:unknown:4096:4096:loop:Unknown:; 1:0.00B:1574MB:1574MB:linux-swap(v1)::;  BYT; /dev/sr0:742MB:scsi:2048:2048:unknown:VBOX CD-ROM:;  BYT; /dev/zram2:1574MB:unknown:4096:4096:loop:Unknown:; 1:0.00B:1574MB:1574MB:linux-swap(v1)::;  BYT; /dev/zram0:1574MB:unknown:4096:4096:loop:Unknown:; 1:0.00B:1574MB:1574MB:linux-swap(v1)::;  =================== lsblk: KNAME TYPE FSTYPE        SIZE LABEL loop0 loop squashfs    629,3M sda   disk               100G sda1  part LVM2_member   100G sr0   rom  iso9660       708M Boot-Repair-Disk 64bit zram0 disk               1,5G zram1 disk               1,5G zram2 disk               1,5G zram3 disk               1,5G dm-0  lvm                 99G dm-1  lvm  swap          980M  KNAME ROTA RO RM STATE   MOUNTPOINT loop0    1  1  0         /rofs sda      1  0  0 running sda1     1  0  0 sr0      1  0  1 running /cdrom zram0    0  0  0         [SWAP] zram1    0  0  0         [SWAP] zram2    0  0  0         [SWAP] zram3    0  0  0         [SWAP] dm-0     1  0  0 running dm-1     1  0  0 running   =================== mount: sysfs on /sys type sysfs (rw,nosuid,nodev,noexec,relatime) proc on /proc type proc (rw,nosuid,nodev,noexec,relatime) udev on /dev type devtmpfs (rw,nosuid,relatime,size=6122880k,nr_inodes=1530720,mode=755) devpts on /dev/pts type devpts (rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode=000) tmpfs on /run type tmpfs (rw,nosuid,noexec,relatime,size=1230016k,mode=755) /dev/sr0 on /cdrom type iso9660 (ro,noatime,nojoliet,check=s,map=n,blocksize=2048) /dev/loop0 on /rofs type squashfs (ro,noatime) /cow on / type overlay (rw,relatime,lowerdir=//filesystem.squashfs,upperdir=/cow/upper,workdir=/cow/work) securityfs on /sys/kernel/security type securityfs (rw,nosuid,nodev,noexec,relatime) tmpfs on /dev/shm type tmpfs (rw,nosuid,nodev) tmpfs on /run/lock type tmpfs (rw,nosuid,nodev,noexec,relatime,size=5120k) tmpfs on /sys/fs/cgroup type tmpfs (ro,nosuid,nodev,noexec,mode=755) cgroup on /sys/fs/cgroup/unified type cgroup2 (rw,nosuid,nodev,noexec,relatime) cgroup on /sys/fs/cgroup/systemd type cgroup (rw,nosuid,nodev,noexec,relatime,xattr,name=systemd) pstore on /sys/fs/pstore type pstore (rw,nosuid,nodev,noexec,relatime) cgroup on /sys/fs/cgroup/devices type cgroup (rw,nosuid,nodev,noexec,relatime,devices) cgroup on /sys/fs/cgroup/hugetlb type cgroup (rw,nosuid,nodev,noexec,relatime,hugetlb) cgroup on /sys/fs/cgroup/memory type cgroup (rw,nosuid,nodev,noexec,relatime,memory) cgroup on /sys/fs/cgroup/perf_event type cgroup (rw,nosuid,nodev,noexec,relatime,perf_event) cgroup on /sys/fs/cgroup/cpu,cpuacct type cgroup (rw,nosuid,nodev,noexec,relatime,cpu,cpuacct) cgroup on /sys/fs/cgroup/net_cls,net_prio type cgroup (rw,nosuid,nodev,noexec,relatime,net_cls,net_prio) cgroup on /sys/fs/cgroup/blkio type cgroup (rw,nosuid,nodev,noexec,relatime,blkio) cgroup on /sys/fs/cgroup/pids type cgroup (rw,nosuid,nodev,noexec,relatime,pids) cgroup on /sys/fs/cgroup/rdma type cgroup (rw,nosuid,nodev,noexec,relatime,rdma) cgroup on /sys/fs/cgroup/cpuset type cgroup (rw,nosuid,nodev,noexec,relatime,cpuset) cgroup on /sys/fs/cgroup/freezer type cgroup (rw,nosuid,nodev,noexec,relatime,freezer) systemd-1 on /proc/sys/fs/binfmt_misc type autofs (rw,relatime,fd=31,pgrp=1,timeout=0,minproto=5,maxproto=5,direct,pipe_ino=13741) debugfs on /sys/kernel/debug type debugfs (rw,relatime) hugetlbfs on /dev/hugepages type hugetlbfs (rw,relatime,pagesize=2M) mqueue on /dev/mqueue type mqueue (rw,relatime) fusectl on /sys/fs/fuse/connections type fusectl (rw,relatime) configfs on /sys/kernel/config type configfs (rw,relatime) tmpfs on /tmp type tmpfs (rw,nosuid,nodev,relatime) tmpfs on /run/user/999 type tmpfs (rw,nosuid,nodev,relatime,size=1230012k,mode=700,uid=999,gid=999) gvfsd-fuse on /run/user/999/gvfs type fuse.gvfsd-fuse (rw,nosuid,nodev,relatime,user_id=999,group_id=999)   =================== ls: /sys/block/dm-0 (filtered):  alignment_offset bdi capability dev discard_alignment dm ext_range holders inflight integrity power queue range removable ro size slaves stat subsystem trace uevent /sys/block/dm-1 (filtered):  alignment_offset bdi capability dev discard_alignment dm ext_range holders inflight integrity power queue range removable ro size slaves stat subsystem trace uevent /sys/block/sda (filtered):  alignment_offset bdi capability dev device discard_alignment events events_async events_poll_msecs ext_range holders inflight integrity power queue range removable ro sda1 size slaves stat subsystem trace uevent /sys/block/sr0 (filtered):  alignment_offset bdi capability dev device discard_alignment events events_async events_poll_msecs ext_range holders inflight integrity power queue range removable ro size slaves stat subsystem trace uevent /dev (filtered):  autofs block bsg btrfs-control bus cdrom char console core cpu_dma_latency cuse disk dm-0 dm-1 dri dvd ecryptfs fb0 fd full fuse hidraw0 hpet hugepages hwrng i2c-0 initctl input kmsg lightnvm log mapper mcelog mem memory_bandwidth mqueue net network_latency network_throughput null port ppp psaux ptmx pts random rfkill rtc rtc0 sda sda1 sg0 sg1 shm snapshot snd sr0 stderr stdin stdout ubuntu-vg uhid uinput urandom userio vboxguest vboxuser vfio vga_arbiter vhci vhost-net vhost-vsock zero ls /dev/mapper:  control ubuntu--vg-root ubuntu--vg-swap_1  =================== df -Th:  Filesystem     Type      Size  Used Avail Use% Mounted on udev           devtmpfs  5.9G     0  5.9G   0% /dev tmpfs          tmpfs     1.2G  9.1M  1.2G   1% /run /dev/sr0       iso9660   708M  708M     0 100% /cdrom /dev/loop0     squashfs  630M  630M     0 100% /rofs /cow           overlay   5.9G   87M  5.8G   2% / tmpfs          tmpfs     5.9G     0  5.9G   0% /dev/shm tmpfs          tmpfs     5.0M  4.0K  5.0M   1% /run/lock tmpfs          tmpfs     5.9G     0  5.9G   0% /sys/fs/cgroup tmpfs          tmpfs     5.9G  176K  5.9G   1% /tmp tmpfs          tmpfs     1.2G  4.0K  1.2G   1% /run/user/999  =================== fdisk -l: Disk /dev/loop0: 629.3 MiB, 659873792 bytes, 1288816 sectors Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes   Disk /dev/sda: 100 GiB, 107374182400 bytes, 209715200 sectors Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disklabel type: dos Disk identifier: 0xea01a2f3  Device     Boot Start       End   Sectors  Size Id Type /dev/sda1  *     2048 209713151 209711104  100G 8e Linux LVM   Disk /dev/zram0: 1.5 GiB, 1574416384 bytes, 384379 sectors Units: sectors of 1 * 4096 = 4096 bytes Sector size (logical/physical): 4096 bytes / 4096 bytes I/O size (minimum/optimal): 4096 bytes / 4096 bytes   Disk /dev/zram1: 1.5 GiB, 1574416384 bytes, 384379 sectors Units: sectors of 1 * 4096 = 4096 bytes Sector size (logical/physical): 4096 bytes / 4096 bytes I/O size (minimum/optimal): 4096 bytes / 4096 bytes   Disk /dev/zram2: 1.5 GiB, 1574416384 bytes, 384379 sectors Units: sectors of 1 * 4096 = 4096 bytes Sector size (logical/physical): 4096 bytes / 4096 bytes I/O size (minimum/optimal): 4096 bytes / 4096 bytes   Disk /dev/zram3: 1.5 GiB, 1574416384 bytes, 384379 sectors Units: sectors of 1 * 4096 = 4096 bytes Sector size (logical/physical): 4096 bytes / 4096 bytes I/O size (minimum/optimal): 4096 bytes / 4096 bytes   Disk /dev/mapper/ubuntu--vg-root: 99 GiB, 106342383616 bytes, 207699968 sectors Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes   Disk /dev/mapper/ubuntu--vg-swap_1: 980 MiB, 1027604480 bytes, 2007040 sectors Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes   Error: no partitions  ** (zenity:13654): WARNING **: Error retrieving accessibility bus address: org.freedesktop.DBus.Error.ServiceUnknown: The name org.a11y.Bus was not provided by any .service files Gtk-Message: GtkDialog mapped without a transient parent. This is discouraged.   =================== Suggested repair The default repair of the Boot-Repair utility would not act on the MBR. Additional repair would be performed:  repair-filesystems   =================== User settings The settings chosen by the user will not act on the boot. 

gnu grub version 2.02 problem

Ubuntu and Windows8 were already installed on my computer. Then Windows crashed and i reinstalled w8. So I can’t access ubuntu. When i look at my disc partition i saw Ubuntu files are still here. Then i tried boot repair from USB and i got gnu grub version 2.02 error. I can’t boot repair because of gnu grub version 2.02 and i can’t access my ubuntu. So how can i boot repair without gnu grub. By the way i tried access try ubuntu but it didn’t work. Because of gnu grub version 2.02 error. So how can i boot repair?

NOTE: That’s my first post on a platform. If anythink is wrong sorry for that.

Thanks.

How to boot Ubuntu distro on Windows 10 laptop from GRUB

So I made this post asking about installing Ubuntu distros from a bootable USB, but I think the issue is actually that the laptop isn’t recognising the GRUBx64 file as a valid… disk partition header or something.

I’ve tried about 3-4 separate bootable USB programs, and 3 different Ubuntu distros, and the results are ALL the same – when I am prompted for an installation type, it has no partitions to select from.

From my other post, this is the screen I am shown.

I am sure that my laptop is the cause, since I’ve changed everything else and it’s the same issue. What should I do to allow my laptop to recognise GRUB?

To clarify, I want to replace Windows 10 with a Ubuntu distro as the OS for this laptop. I do NOT want to dual boot Windows10 and the Ubuntu distro. I just want to get this working after many, many hours of suffering.

Edit: this post is different from my other post, I think. I’m new to stack exchange so it might be considered the same, but I believe this question is more specific than the other.

See grub 2.02 When I launch my laptop

I installed Ubuntu 18.04 on my Acer Aspire 3 laptop. The installation was automatic (on a 128 GB SSD).

But when I turn on the laptop (or when rebooting), I see a blue window. It says: Gnu Grub, 2.02.

And every time I need to choose first item menu (ubuntu) so that my laptop is turned on.

What does it mean? Can this grub be removed?

Sorry for my bad English and noob questions. I have been used windows last 10 years.

Ubuntu booting into GRUB with Dual-Boot Windows 10

I installed Ubuntu 18.04.3 LTS on my Windows 10 PC yesterday. It seemed to install with no problems. I am new to Linux/Ubuntu, so I decided to install it for Dual Boot and try it out for a while until I was ready for a full switch. I read up on a bunch of tutorials and installed Ubuntu using a bootable USB drive. After installation, Ubuntu prompted me to reboot. Upon reboot, my PC booted into GRUB. I was up until 3AM last night researching help and tutorials for this but absolutely nothing I’ve tried worked and being that I am an idiot and don’t have a backup of my Windows OS or any of my files, I REALLY need some help. This PC has all of my files for my job and my schooling on it, losing it would be a massive loss on my part. At this point I really have no idea where to even start. I’ve already tried reinstalling Ubuntu by doing the exit command twice in Grub and then booting in the “Try Ubuntu without Installing” option and installed from there. Still boots to GRUB every time. If I could get Ubuntu running that would be awesome but at this point as long as I can get back to my Windows 10 OS I’ll be elated. I’m sure ignorant new people like me are a pain to deal with, but any help is appreciated very much!!

How to get to the GRUB menu in Ubuntu 19.04?

How do I break into the GRUB menu when booting a single-boot Ubuntu 19.04 system? I’ve tried all of the key combinations I can find online (Esc, Shift, Space, c) and nothing keeps the system from booting Ubuntu right away.

My deeper issue is that I upgraded an 18.04 system to 19.04, and everything went fine, but when I did the final reboot, the system got stuck with a purple screen after the usual Ubuntu logo with the progress dots under it — no GDM, and no apparent way to log in. Many suggested workarounds involve tweaking GRUB parameters, which would be great, if only I could get to GRUB.

This is a VirtualBox VM, if that matters.

Booting from USB drive goes to grub and no linux partition detected

I’ve formatted my pc quite a few times, and installed ubuntu a few as well. Recently I re-formatted my pc, in order to clean windows/ubuntu and expand the storage space for ubuntu.

From windows, I used Rufus to make a USB drive bootable with ubuntu. I’ve disabled secure boot and made sure ubunut had top booting prority. I’ve partitioned the disk to have 600gb of free space for linux and keep 300gb for windows.

Once I boot up the computer, it goes in to grub. I’ve tried quite a few things, and followed solutions to similar problems, but I haven’t managed.

filesystems unkow

I’ve tried ls in to all these options:

result of ls

The result is different from the outcomes I’ve seen from everyone else with similar problems.

Any help would appreciated!