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h0mer`-
Apprentice
Joined: 02 Aug 2004
Posts: 215
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 Posted: Wed May 09, 2018 9:56 am Post subject: [solved] correct way to upgrade grub? |
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i have grub 2.00 on my current system. i want to use the microcode feature of the newest grub v 2.02-r1.
what is the correct way to upgrade grub in that case?
i am asking because updating the package still shows grub 2.00 in boot menu.
so i tried reinstalling it to /dev/sda - boot menu shows correct version 2.02 but gets stuck in grub shell.
Last edited by h0mer`- on Fri May 11, 2018 9:05 am; edited 1 time in total |
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DONAHUE
Watchman
Joined: 09 Dec 2006
Posts: 7651
Location: Goose Creek SC
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| Posted: Wed May 09, 2018 3:12 pm Post subject: |
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"but gets stuck in grub shell."
means it can't find or can't read grub.cfg
booting in UEFI mode? booting in Legacy BIOS mode? not a UEFI motherboard?
what exact command did you issue when reinstalling grub?
If using a separate boot partition, was it mounted when the grub reinstall command was issued?
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h0mer`-
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Joined: 02 Aug 2004
Posts: 215
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| Posted: Thu May 10, 2018 10:01 am Post subject: |
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boot partition was mounted
legacy bios mode in a vm
grub-install /dev/sda |
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DONAHUE
Watchman
Joined: 09 Dec 2006
Posts: 7651
Location: Goose Creek SC
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| Posted: Thu May 10, 2018 11:57 am Post subject: |
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Does grub.cfg exist in the location where grub expects to find it?
boot system rescue cd/usb, mount the gentoo partitions; nominally: | Code: | mount /dev/sda4 /mnt/gentoo
ls -lR /mnt/gentoo/boot | wgetpaste -t
mount /dev/sda2 /mnt/gentoo/boot
ls -lR /mnt/gentoo/boot | wgetpaste -t |
if your root partition is not /dev/sda4 and/or your boot partition is not /dev/sda2 substitute your values. Post the url's returned here.
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Jaglover
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Joined: 29 May 2005
Posts: 8291
Location: Saint Amant, Acadiana
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h0mer`-
Apprentice
Joined: 02 Aug 2004
Posts: 215
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| Posted: Fri May 11, 2018 9:05 am Post subject: |
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it works now and i have no idea what i did wrong.
i marked the thread as solved - thanks for your help. |
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Installing Gentoo
