The file \/boot\/grub\/stage1 not read correctly
\nAfter pxe booting a server and installing linux from a cpio archive, grub failed to load using the grub-install command. The error presented was as follows:<\/p>\n
root@pxe:~# mkdir \/target
\nroot@pxe:~# mount \/dev\/sda1 \/target
\nroot@pxe:~# chroot \/target
\nroot@pxe:~# grub-install \/dev\/sda
\nThe file \/boot\/grub\/stage1 not read correctly.
\nSince command line didn’t work, I tried installing grub via the grub shell:<\/p>\n
root@pxe:~# grub<\/p>\n
GNU GRUB version 0.97 (640K lower \/ 3072K upper memory)<\/p>\n
[ Minimal BASH-like line editing is supported. For the first word, TAB
\n lists possible command completions. Anywhere else TAB lists the possible
\n completions of a device\/filename.]
\ngrub> root (hd0,0)
\nroot (hd0,0)
\n Filesystem type is ext2fs, partition type 0xfd
\ngrub> setup (hd0)
\nsetup (hd0)
\n Checking if “\/boot\/grub\/stage1” exists… no
\n Checking if “\/grub\/stage1” exists… no<\/p>\n
Error 2: Bad file or directory type
\ngrub>
\nThis too failed, with a different error message. You may have noticed the first error message given while attempting to install grub with the grub-install command yielded:<\/p>\n
The file \/boot\/grub\/stage1 not read correctly<\/p>\n
While attempting to install grub via the grub shell yielded:<\/p>\n
Error 2: Bad file or directory type<\/p>\n
After some research, grub only works on an inode size of 128, and the pxe system formatted the file system with an inode size of 256.<\/p>\n
root@pxe:~# tune2fs -l \/dev\/sda1 | grep -i ‘inode size’
\nInode size: 256
\nThe system being reimaged was an older legacy system, and the pxe system had been upgraded months prior. Having remembered this, I compared versions of mke2fs and found that the upgraded version creates 256-byte inodes by default, where the older version was 128. To correct this, I updated the pxe imaging scripts responsible for formatting the disks with the -I option as follows:<\/p>\n
root@pxe:~# mke2fs -L \/ -I 128 -F -j -O dir_index \/dev\/sda1
\nOnce recreating the file system with a defined inode size of 128, the grub-install command worked successfully.<\/p>\n
root@pxe:~# tune2fs -l \/dev\/sda1 | grep -i ‘inode size’
\nInode size: 128<\/p>\n","protected":false},"excerpt":{"rendered":"
The file \/boot\/grub\/stage1 not read correctly After pxe booting a server and installing linux from a cpio archive, grub failed to load using the grub-install command. The error presented was as follows:<\/p>\n
root@pxe:~# mkdir \/target root@pxe:~# mount \/dev\/sda1 \/target root@pxe:~# chroot \/target root@pxe:~# grub-install \/dev\/sda The file \/boot\/grub\/stage1 not read correctly. Since command line didn’t […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4,17],"tags":[],"_links":{"self":[{"href":"https:\/\/mohan.sg\/index.php?rest_route=\/wp\/v2\/posts\/4146"}],"collection":[{"href":"https:\/\/mohan.sg\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mohan.sg\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mohan.sg\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/mohan.sg\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=4146"}],"version-history":[{"count":1,"href":"https:\/\/mohan.sg\/index.php?rest_route=\/wp\/v2\/posts\/4146\/revisions"}],"predecessor-version":[{"id":4147,"href":"https:\/\/mohan.sg\/index.php?rest_route=\/wp\/v2\/posts\/4146\/revisions\/4147"}],"wp:attachment":[{"href":"https:\/\/mohan.sg\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=4146"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mohan.sg\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=4146"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mohan.sg\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=4146"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}