command "grub-install --modules=part_gpt /dev/sdc" resolved the issue for me. however i also wanted to know that how it actually works. what is the difference. i can understand i am mentioning gpt module in the command but what is the theoretical story behind this to work. or what is the difference b/w grub-install /dev/sdc and grub-install --modules=part_gpt /dev/sdc
On Mon, Sep 14, 2015 at 12:28 PM, Pascal Hambourg <pas...@plouf.fr.eu.org> wrote: > Gary Dale a écrit : > > On 13/09/15 04:28 PM, Muhammad Yousuf Khan wrote: > >> > >> GRUB loading. > >> Welcome to GRUB! > >> > >> error: no such device: 2 > >> Entering rescue mode... > >> grub rescue> > >> > >> moreover when i use command "ls" > >> > >> it shows me (hda0) > > > > mdadm doesn't care about partition tables. > > But GRUB does. "No such device" seems to indicate that GRUB did not find > the disk, partition or RAID array specified in the $prefix variable, > where the files in /boot/grub/ are supposed to be located. Also, ls > showing only the whole disk (hd0) without any partition seems to > indicate that it could not read the partition table. GRUB has specific > modules to read each partition table format, and such module(s) need to > be embedded into the core image by grub-install in order to be able to > read the partition table of the disk(s) containing /boot/grub. Same with > RAID modules. > > > It just wants to be able to > > find the arrays. However to start the array, grub needs the initramfs. > > GRUB does not need an initramfs to start RAID arrays. The Linux kernel > does. GRUB just loads the initramfs in memory for the Linux kernel. > >
